CN1433471A - 85kgDa奈瑟球菌的抗原 - Google Patents
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Abstract
已克隆、测序和表达了脑膜炎奈瑟球菌和淋病奈瑟球菌的85kDa抗原。这种抗原对脑膜炎奈瑟球菌的多种菌株、血清群和血清型是共有的,而且在淋病奈瑟球菌、多糖奈瑟球菌和乳糖奈瑟球菌中也是共有的。脑膜炎奈瑟球菌(血清群A和B)和淋病奈瑟球菌的该蛋白质的序列是高度同源的。
Description
在本文中提及的所有文件都全部通过引用纳入本文。
技术领域
本发明涉及来自细菌脑膜炎奈瑟球菌(Neisseria meningitidis)和淋病奈瑟球菌(Neisseriagonorrhoeae)的抗原。
背景技术
脑膜炎奈瑟球菌(Neisseria meningitidis)是不能动的、对人有致病性的革兰氏阴性双球菌。其聚集于咽部,导致脑膜炎,并且偶尔会在不引起脑膜炎的情况下导致败血病。该菌与淋病奈瑟球菌(Neisseria gonorrhoeae)非常接近,虽然脑膜炎奈瑟球菌与淋病奈瑟球菌间的一个明显差异是在所有致病性脑膜炎奈瑟球菌中存在多糖荚膜。
脑膜炎奈瑟球菌会导致地方性和流行性疾病。在美国其发病率每年每100,000人为0.6-1人,而且爆发时发病率会更高[Lieberman等人,(1996)JAMA275(19):1499-1503;Schuchat等人(1997)N Engl J Med337(14):970-976]。在发展中国家,地方性发病率更高,在地方性发病率每年每100,000人可达500个病例。死亡率特别高,在美国为10-20%,在发展中国家则更高。在引进针对流感嗜血菌(Haemophilus influenzae)的偶联疫苗以后,脑膜炎奈瑟球菌是造成美国各年龄层细菌性脑膜炎主要的原因[Schuchat等人(1997),同上]。
根据该菌的荚膜多糖,已经鉴定出12种脑膜炎奈瑟球菌的血清群。目前使用的脑膜炎球菌疫苗是由血清群A、C、Y和W135组成的四价多糖疫苗。在针对流感嗜血菌疫苗的成功之后,已开发了针对血清群A和C的偶联疫苗。
然而脑膜炎球菌B仍是一个问题。这种血清群导致约占美国、欧洲和南美脑膜炎总数的50%。不能采用多糖方法,因为menB荚膜多糖是一种α(2-8)-相连的N-乙酰神经氨酸的聚合物,它也存在于哺乳动物组织中。这就导致了对抗原的耐免,事实上如果引发应答,该应答将会是防自身的,因此是不良的。为了避免引发自体免疫和引发保护性免疫应答,将荚膜多糖进行例如化学修饰,用N-丙酰基替代N-乙酰基,而不改变其特异性抗原性[Romero &Outschoorn(1994)Clin Microbiol Rev 7(4):559-575]。
另一种menB疫苗方法是采用外膜蛋白(OMP)的混合物,其仅含有OMP或富含在膜孔蛋白中的OMP,或除去4型OMP(据信其引发封阻杀菌活性的抗体)。这些疫苗的性质还未确定,而且仅对同源菌株有效。为了克服抗原性变异,已经构建了含有高达9种不同膜孔蛋白的多价疫苗(例如,Poolman JT(1992)Infect.Agents Dis.4:13-28]。用于外膜疫苗的其它蛋白是opa和opc蛋白,但是这些方法均不能克服抗原性变异[例如Ala′Aldeen和Borriello(1996)Vaccine14(1):49-53]。然而挪威国家公共卫生研究所的疫苗是安全的,在儿童和成年人中可引起菌株-特异性免疫,并能有效预防青少年疾病。
但对这些疫苗的定性都不够,而且至今未探明它们效果和保护作用的分子基础。本发明的目的是确定疫苗的抗原性成分从而对它们定性,以便生产界定更清楚的疫苗(如非细胞亚基疫苗),并能扩大引发的免疫所针对的奈瑟球菌的范围。
发明公开
蛋白质
本发明提供了包含一个或多个选自以下氨基酸序列的蛋白质:SEQ I D1、SEQ ID 3、SEQ ID 4、SEQ ID 5、SEQ ID 7、SEQ ID 8、SEQ ID 9、SEQ ID 11、SEQ ID 12和SEQ ID 13。
本发明还提供了具有与SEQ ID 1、SEQ ID 3、SEQ ID 4、SEQ ID 5、SEQID 7、SEQ ID 8、SEQ ID 9、SEQ ID 11、SEQ ID 12或SEQ ID NO:ID 13有序列相同性的序列的蛋白质。根据具体的序列,序列相同性的程度宜大于50%(例如60%、70%、80%、90%、95%、99%或更高)。这些同源的序列包括突变体和等位基因变体。通常,两种蛋白质间50%或以上的相同被视为功能相当的指示。两个序列之间的相同性宜用Smith-Waterman同源性搜寻算法确定,如在MPSRCH程序(Oxford Molecular)中,采用参数“缺口罚分(gap penalty)”为12,“缺口延伸罚分(gap extension penalty)”为1进行缺口仿射搜索。
本发明还提供了含有SEQ ID 1、SEQ ID 3、SEQ ID 4、SEQ ID 5、SEQ ID 7、SEQ ID 8、SEQ ID 9、SEQ ID 11、SEQ ID 12或SEQ ID 13的片段的蛋白质。该片段必须含有该序列的至少n个连续氨基酸,而且根据具体的序列,n为7或以上(如8、10、12、14、16、18、20或更大)。该片段宜含有该序列的表位。
当然,本发明的蛋白质可以用多种方法制备(例如,重组表达、从细胞培养物中纯化、化学合成等),并可以是各种形式(例如天然的、融合的等)。它们宜制成基本上纯净的形式(即基本上不含其它奈瑟球菌或宿主细胞蛋白)。
抗体
另一方面,本发明提供了结合这些蛋白质的抗体。这些抗体可以是多克隆的或是单克隆的,并可用任何适合的方法制备。
核酸
另一方面,本发明提供了包含SEQ ID 2、SEQ ID 6或SEQ ID 10的核酸。另外,本发明提供了含有与SEQ ID 2、SEQ ID 6或SEQ ID 10有序列相同性的序列的核酸。根据具体的SEQ ID,序列相同性的程度宜大于50%(例如60%、70%、80%、90%、95%、99%或更高)。两个序列之间的相同性宜用Smith-Waterman同源性搜寻算法确定,如在MPSRCH程序(Oxford Molecular)中,采用参数“缺口罚分(gap penalty)”为12,“缺口延伸罚分(gap extension penalty)”为1进行缺口仿射搜索。
此外,本发明还提供了可杂交于SEQ ID 2、SEQ ID 6或SEQ ID 10(较佳地在“高度严谨”条件下(如65℃,0.1×SSC,0.5%SDS溶液中)杂交)的核酸。
还提供了含有SEQ ID 2、SEQ ID 6或SEQ ID 10的片段的核酸。这些核酸含有SEQ ID 2、SEQ ID 6或SEQ ID 10的至少n个连续核苷酸,而且根据具体的序列,n为10或更大(如12、14、15、18、20、25、30、35、40或更大)。
另一方面,本发明提供了编码本发明蛋白质和蛋白质片段的核酸。
还应理解,本发明提供了一类核酸,所述核酸含有与上述序列互补的序列(例如用于反义或探测目的)。
当然,本发明的核酸可以用多种方法制备(例如,化学合成、从基因组或cDNA文库、或从生物体本身制得等),并可以是各种形式(例如单链、双链、载体、探针等)。
此外,术语“核酸”包括DNA和RNA,以及它们的类似物,如含有修饰骨架的那些类似物,还包括肽核酸(PNA)等。
另一方面,本发明提供了含有本发明的核苷酸序列的载体(如表达载体)以及用这些载体转化的宿主细胞。
组合物
另一方面,本发明提供了含有本发明蛋白质、抗体和/或核酸的组合物。这些组合物适合作为例如疫苗、诊断试剂或免疫原性组合物。
本发明的组合物还可含有选自以下一种或多种的免疫原性成分:
●WO99/57280公开的蛋白质或其免疫原性片段;
●WO99/36544公开的蛋白质或其免疫原性片段;
●WO99/24578公开的蛋白质或其免疫原性片段;
●Tettelin等人[Seience(2000)287:1809-1815;NMB0001到NMB2160]公开
的蛋白质或其免疫原性片段;
●WO97/28273公开的蛋白质或其免疫原性片段;
●WO96/29412公开的蛋白质或其免疫原性片段;
●WO95/03413公开的蛋白质或其免疫原性片段;
●WO99/31132公开的蛋白质或其免疫原性片段;
●抗脑膜炎奈瑟球菌血清群A的保护性抗原;
●抗脑膜炎奈瑟球菌血清群C的保护性抗原;
●抗脑膜炎奈瑟球菌血清群Y的保护性抗原;
●抗脑膜炎奈瑟球菌血清群W的保护性抗原;
●抗流感嗜血菌的保护性抗原;
●抗肺炎球菌的保护性抗原;
●抗白喉的保护性抗原;
●抗破伤风的保护性抗原;
●抗百日咳的保护性抗原;
●抗幽门螺旋杆菌(Helicobacter pylori)的保护性抗原;
●抗脊髓灰质炎的保护性抗原;和/或
●抗乙型肝炎病毒的保护性抗原。
本发明的组合物宜含有选自以下的一种或多种免疫原性成分:
●含有选自以下的氨基酸序列的蛋白质:如WO99/24578所述的SEQ ID 2,
4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,
50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,
94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,
128,130,132,134,136,138,140,142,144,146,148,150,152,154,156,158,
160,162,164,166,168,170,172,174,176,178,180,182,184,186,188,190,
192,194,196,198,200,202,204,206,208,210,212,214,216,218,220,222,
224,226,228,230,232,234,236,238,240,242,244,246,248,250,252,254,
256,258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,
288,290,292,294,296,298,300,302,304,306,308,310,312,314,316,318,
320,322,324,326,328,330,332,334,336,338,340,342,344,346,348,350,
352,354,356,358,360,362,364,366,368,370,372,374,376,378,380,382,
384,386,388,390,392,394,396,398,400,402,404,406,408,410,412,414,
416,418,420,422,424,426,428,430,432,434,436,438,440,442,444,446,
448,450,452,454,456,458,460,462,464,466,468,470,472,474,476,478,
480,482,484,486,488,490,492,494,496,498,500,502,504,506,508,510,
512,514,516,518,520,522,524,526,528,530,532,534,536,538,540,542,
544,546,548,550,552,554,556,558,560,562,564,566,568,570,572,574,
576,578,580,582,584,586,588,590,592,594,596,598,600,602,604,606,
608,610,612,614,616,618,620,622,624,626,628,630,632,634,636,638,
640,642,644,646,648,650,652,654,656,658,660,662,664,666,668,670,
672,674,676,678,680,682,684,686,688,690,692,694,696,698,700,702,
704,706,708,710,712,714,716,718,720,722,724,726,728,730,732,734,
736,738,740,742,744,746,748,750,752,754,756,758,760,762,764,766,
768,770,772,774,776,778,780,782,784,786,788,790,792,794,796,798,
800,802,804,806,808,810,812,814,816,818,820,822,824,826,828,830,
832,834,836,838,840,842,844,846,848,850,852,854,856,858,860,862,
864,866,868,870,872,874,876,878,880,882,884,886,888,890,和892(或
含有一种或多种这些SEQ ID的免疫原性片段的蛋白质,或含有与这些
SEQ ID之一有序列相同性(宜高于50%,如60%、70%、80%、90%、95%、
99%或更高)的序列的蛋白质);
●含有选自以下氨基酸序列的蛋白质:如WO99/36544所述的SEQ ID 2,4,
6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,
52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,和90(或含
有一种或多种这些SEQ ID的免疫原性片段的蛋白质,或含有与这些SEQ
ID之一有序列相同性(宜高于50%,如60%、70%、80%、90%、95%、99%
或更高)的序列的蛋白质);
●由Tettelin等人[Science(2000)287:1809-1815]所公开的NMB0001
到NMB2160的2160个基因中任一个基因所编码的蛋白质(或含有这
2160个基因中的一个或多个的免疫原性片段的蛋白质,或含有与这
2160个基因中的一个序列相同(宜高于50%,如60%、70%、80%、90%、
95%、99%或更高)的序列的蛋白质);
●含有选自以下氨基酸序列的蛋白质:如WO99/57280所述的2,4,6,8,10,
12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,
56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,
100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,
132,134,136,138,140,142,144,146,148,150,152,154,156,158,160,162,
164,166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,
196,198,200,202,204,206,208,210,212,214,216,218,220,222,224,226,
228,230,232,234,236,238,240,242,244,246,248,250,252,254,256,258,
260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,
292,294,296,298,300,302,304,306,308,310,312,314,316,318,320,322,
324,326,328,330,332,334,336,338,340,342,344,346,348,350,352,354,
356,358,360,362,364,366,368,370,372,374,376,378,380,382,384,386,
388,390,392,394,396,398,400,402,404,406,408,410,412,414,416,418,
420,422,424,426,428,430,432,434,436,438,440,442,444,446,448,450,
452,454,456,458,460,462,464,466,468,470,472,474,476,478,480,482,
484,486,488,490,492,494,496,498,500,502,504,506,508,510,512,514,
516,518,520,522,524,526,528,530,532,534,536,538,540,542,544,546,
548,550,552,554,556,558,560,562,564,566,568,570,572,574,576,578,
580,582,584,586,588,590,592,594,596,598,600,602,604,606,608,610,
612,614,616,618,620,622,624,626,628,630,632,634,636,638,640,642,
644,646,648,650,652,654,656,658,660,662,664,666,668,670,672,674,
676,678,680,682,684,686,688,690,692,694,696,698,700,702,704,706,
708,710,712,714,716,718,720,722,724,726,728,730,732,734,736,738,
740,742,744,746,748,750,752,754,756,758,760,762,764,766,768,770,
772,774,776,778,780,782,784,786,788,790,792,794,796,798,800,802,
804,806,808,810,812,814,816,818,820,822,824,826,828,830,832,834,
836,838,840,842,844,846,848,850,852,854,856,858,860,862,864,866,
868,870,872,874,876,878,880,882,884,886,888,890,892,894,896,898,
900,902,904,906,908,910,912,914,916,918,920,922,924,926,928,930,
932,934,936,938,940,942,944,946,948,950,952,954,956,958,960,962,
964,966,968,970,972,974,976,978,980,982,984,986,988,990,992,994,
996,998,1000,1002,1004,1006,1008,1010,1012,1014,1016,1018,1020,
1022,1024,1026,1028,1030,1032,1034,1036,1038,1040,1042,1044,1046,
1048,1050,1052,1054,1056,1058,1060,1062,1064,1066,1068,1070,1072,
1074,1076,1078,1080,1082,1084,1086,1088,1090,1092,1094,1096,1098,
1100,1102,1104,1106,1108,1110,1112,1114,1116,1118,1120,1122,1124,
1126,1128,1130,1132,1134,1136,1138,1140,1142,1144,1146,1148,1150,
1152,1154,1156,1158,1160,1162,1164,1166,1168,1170,1172,1174,1176,
1178,1180,1182,1184,1186,1188,1190,1192,1194,1196,1198,1200,1202,
1204,1206,1208,1210,1212,1214,1216,1218,1220,1222,1224,1226,1228,
1230,1232,1234,1236,1238,1240,1242,1244,1246,1248,1250,1252,1254,
1256,1258,1260,1262,1264,1266,1268,1270,1272,1274,1276,1278,1280,
1282,1284,1286,1288,1290,1292,1294,1296,1298,1300,1302,1304,1306,
1308,1310,1312,1314,1316,1318,1320,1322,1324,1326,1328,1330,1332,
1334,1336,1338,1340,1342,1344,1346,1348,1350,1352,1354,1356,1358,
1360,1362,1364,1366,1368,1370,1372,1374,1376,1378,1380,1382,1384,
1386,1388,1390,1392,1394,1396,1398,1400,1402,1404,1406,1408,1410,
1412,1414,1416,1418,1420,1422,1424,1426,1428,1430,1432,1434,1436,
1438,1440,1442,1444,1446,1448,1450,1452,1454,1456,1458,1460,1462,
1464,1466,1468,1470,1472,1474,1476,1478,1480,1482,1484,1486,1488,
1490,1492,1494,1496,1498,1500,1502,1504,1506,1508,1510,1512,1514,
1516,1518,1520,1522,1524,1526,1528,1530,1532,1534,1536,1538,1540,
1542,1544,1546,1548,1550,1552,1554,1556,1558,1560,1562,1564,1566,
1568,1570,1572,1574,1576,1578,1580,1582,1584,1586,1588,1590,1592,
1594,1596,1598,1600,1602,1604,1606,1608,1610,1612,1614,1616,1618,
1620,1622,1624,1626,1628,1630,1632,1634,1636,1638,1640,1642,1644,
1646,1648,1650,1652,1654,1656,1658,1660,1662,1664,1666,1668,1670,
1672,1674,1676,1678,1680,1682,1684,1686,1688,1690,1692,1694,1696,
1698,1700,1702,1704,1706,1708,1710,1712,1714,1716,1718,1720,1722,
1724,1726,1728,1730,1732,1734,1736,1738,1740,1742,1744,1746,1748,
1750,1752,1754,1756,1758,1760,1762,1764,1766,1768,1770,1772,1774,
1776,1778,1780,1782,1784,1786,1788,1790,1792,1794,1796,1798,1800,
1802,1804,1806,1808,1810,1812,1814,1816,1818,1820,1822,1824,1826,
1828,1830,1832,1834,1836,1838,1840,1842,1844,1846,1848,1850,1852,
1854,1856,1858,1860,1862,1864,1866,1868,1870,1872,1874,1876,1878,
1880,1882,1884,1886,1888,1890,1892,1894,1896,1898,1900,1902,1904,
1906,1908,1910,1912,1914,1916,1918,1920,1922,1924,1926,1928,1930,
1932,1934,1936,1938,1940,1942,1944,1946,1948,1950,1952,1954,1956,
1958,1960,1962,1964,1966,1968,1970,1972,1974,1976,1978,1980,1982,
1984,1986,1988,1990,1992,1994,1996,1998,2000,2002,2004,2006,2008,
2010,2012,2014,2016,2018,2020,2022,2024,2026,2028,2030,2032,2034,
2036,2038,2040,2042,2044,2046,2048,2050,2052,2054,2056,2058,2060,
2062,2064,2066,2068,2070,2072,2074,2076,2078,2080,2082,2084,2086,
2088,2090,2092,2094,2096,2098,2100,2102,2104,2106,2108,2110,2112,
2114,2116,2118,2120,2122,2124,2126,2128,2130,2132,2134,2136,2138,
2140,2142,2144,2146,2148,2150,2152,2154,2156,2158,2160,2162,2164,
2166,2168,2170,2172,2174,2176,2178,2180,2182,2184,2186,2188,2190,
2192,2194,2196,2198,2200,2202,2204,2206,2208,2210,2212,2214,2216,
2218,2220,2222,2224,2226,2228,2230,2232,2234,2236,2238,2240,2242,
2244,2246,2248,2250,2252,2254,2256,2258,2260,2262,2264,2266,2268,
2270,2272,2274,2276,2278,2280,2282,2284,2286,2288,2290,2292,2294,
2296,2298,2300,2302,2304,2306,2308,2310,2312,2314,2316,2318,2320,
2322,2324,2326,2328,2330,2332,2334,2336,2338,2340,2342,2344,2346,
2348,2350,2352,2354,2356,2358,2360,2362,2364,2366,2368,2370,2372,
2374,2376,2378,2380,2382,2384,2386,2388,2390,2392,2394,2396,2398,
2400,2402,2404,2406,2408,2410,2412,2414,2416,2418,2420,2422,2424,
2426,2428,2430,2432,2434,2436,2438,2440,2442,2444,2446,2448,2450,
2452,2454,2456,2458,2460,2462,2464,2466,2468,2470,2472,2474,2476,
2478,2480,2482,2484,2486,2488,2490,2492,2494,2496,2498,2500,2502,
2504,2506,2508,2510,2512,2514,2516,2518,2520,2522,2524,2526,2528,
2530,2532,2534,2536,2538,2540,2542,2544,2546,2548,2550,2552,2554,
2556,2558,2560,2562,2564,2566,2568,2570,2572,2574,2576,2578,2580,
2582,2584,2586,2588,2590,2592,2594,2596,2598,2600,2602,2604,2606,
2608,2610,2612,2614,2616,2618,2620,2622,2624,2626,2628,2630,2632,
2634,2636,2638,2640,2642,2644,2646,2648,2650,2652,2654,2656,2658,
2660,2662,2664,2666,2668,2670,2672,2674,2676,2678,2680,2682,2684,
2686,2688,2690,2692,2694,2696,2698,2700,2702,2704,2706,2708,2710,
2712,2714,2716,2718,2720,2722,2724,2726,2728,2730,2732,2734,2736,
2738,2740,2742,2744,2746,2748,2750,2752,2754,2756,2758,2760,2762,
2764,2766,2768,2770,2772,2774,2776,2778,2780,2782,2784,2786,2788,
2790,2792,2794,2796,2798,2800,2802,2804,2806,2808,2810,2812,2814,
2816,2818,2820,2822,2824,2826,2828,2830,2832,2834,2836,2838,2840,
2842,2844,2846,2848,2850,2852,2854,2856,2858,2860,2862,2864,2866,
2868,2870,2872,2874,2876,2878,2880,2882,2884,2886,2888,2890,2892,
2894,2896,2898,2900,2902,2904,2906,2908,2910,2912,2914,2916,2918,
2920,2922,2924,2926,2928,2930,2932,2934,2936,2938,2940,2942,2944,
2946,2948,2950,2952,2954,2956,2958,2960,2962,2964,2966,2968,2970,
2972,2974,2976,2978,2980,2982,2984,2986,2988,2990,2992,2994,2996,
2998,3000,3002,3004,3006,3008,3010,3012,3014,3016,3018和3020(或含
有一种或多种这些SEQ ID的免疫原性片段的蛋白质,或含有与这些SEQ
ID之一有序列相同性(宜高于50%,如60%、70%、80%、90%、95%、99%
或更高)的序列的蛋白质);
●WO97/28273的图4或图13所公开的蛋白质;
●含有选自如下氨基酸序列的蛋白质:如WO96/29412公开的SEQ ID 1-
8(或含有一种或多种这些SEQ ID的免疫原性片段的蛋白质,或含有与
这些SEQ ID之一有序列相同性(宜高于50%,如60%、70%、80%、90%、
95%、99%或更高)的序列的蛋白质);
●含有选自如下氨基酸序列的蛋白质:如WO95/03413公开的SEQ ID 1-
23(或含有一种或多种这些SEQ ID的免疫原性片段的蛋白质,或含有
与这些SEQ ID之一有序列相同性(宜高于50%,如60%、70%、80%、90%、
95%、99%或更高)的序列的蛋白质);
●含有选自如下氨基酸序列的蛋白质:如WO99/31132公开的SEQ ID 2(或
含有SEQ ID 2的免疫原性片段的蛋白质,或含有与SEQ ID 2序列相
同(宜高于50%,如60%、70%、80%、90%、95%、99%或更高)的序列的
蛋白质);
●抗脑膜炎奈瑟球菌血清群A的多糖抗原;
●抗脑膜炎奈瑟球菌血清群C的多糖抗原,如Costantino等人
(1992)Vaccine 10:691-698所公开的;
●抗脑膜炎奈瑟球菌血清群Y的多糖抗原;
●抗脑膜炎奈瑟球菌血清群W的多糖抗原;
●抗流感嗜血菌的多糖抗原;
●抗肺炎球菌的多糖抗原;
●抗白喉的保护性抗原,由白喉类毒素如CRM197突变体[如,Del Guidice
等人(1998)Molecular Aspects of Medicine19:1-70]构成;
●抗破伤风的保护性抗原,由破伤风毒素[如Wassilak & Orenstein,疫
苗,第4章(Plotkin & Mortimer编辑),1988]构成;
●抗百日咳的保护性抗原,由百日咳全毒素(PT)和丝状凝血素(FHA)构
成,还可任选地含有百日咳杆菌粘附素(pertactin)和/或凝集原2和
3[如,Gustafsson等人(1996)N.Engl.J.Med.334:349-355;Rappoli等
人(1991)TIBTECH9:232-238];
●抗幽门螺旋杆菌的保护性抗原,包含一种或多种CagA(如WO93/18150)、
VacA(如,WO93/18150)、NAP(如,WO99/53310)、HopX(如WO98/04702)、
HopY(如,WO98/04702)、尿激酶;
●抗乙型肝炎病毒的保护性抗原,由HBV表面抗原和/或HBV核心抗原构
成。
当组合物含有抗白喉的抗原时,这种组合物宜含有抗破伤风和脊髓灰质炎的抗原。当组合物含有抗破伤风的抗原时,该组合物宜含有抗白喉和脊髓灰质炎的抗原。当组合物含有抗脊髓灰质炎的抗原时,该组合物宜含有抗白喉和破伤风的抗原。
百日咳毒素是毒素蛋白,当存在于组合物中时,宜将其去毒。去毒化可通过化学和/或遗传方法进行。优选的去过毒的突变体是9K/129G双突变体[如,Rappuoli(1997)Nature Medicine3:374-376]。
当组合物含有以不同新生和成熟形式存在的蛋白质时,宜选用该蛋白质的成熟形式。例如,当含有NspA时,(WO96/29412;还可参见Martin等人(1997)J.Exp.med 185 1173-1183)宜选用没有信号肽的蛋白质成熟形式。
当组合物含有多糖抗原时,宜将多糖偶联于载体蛋白。
组合物中本发明的蛋白质宜与组合物中的至少一种保护性抗原协同地相互作用。
治疗、预防、诊断
本发明还提供了用作药剂(宜为疫苗)或作为诊断试剂的本发明的组合物。本发明还提供了本发明的组合物在生产下列物质中的应用:(i)用于治疗或预防奈瑟球菌属细菌感染的药剂;(ii)用于检测奈瑟球菌属细菌或检测抗奈瑟球菌属细菌抗体是否存在的诊断试剂;和/或(iii)用于产生抗奈瑟球菌属细菌的抗体的试剂。所述奈瑟球菌属细菌可以是任何物种或菌株(例如淋病奈瑟球菌),但优选脑膜炎奈瑟球菌,尤其是血清群B。
本发明还提供了一种治疗患者的方法,该方法包括给予患者治疗有效量的本发明的核酸、蛋白质和/或抗体。该方法宜为免疫法。
本发明的疫苗可以是预防性(即预防感染)或治疗性的(即治疗感染后的疾病)。
方法
另一方面,本发明提供了各种方法。
提供了一种生产本发明的蛋白的方法,该方法包括步骤:在诱导蛋白表达的条件下,培育本发明的宿主细胞。
提供了一种生产本发明的蛋白质或核酸的方法,其中用化学法部分或全部地合成所述蛋白或核苷酸。
提供了一种检测本发明的多核苷酸的方法,该方法包括下列步骤:(a)在杂交条件下使本发明的核酸探针与生物样品接触,形成双链体;和(b)检测所述的双链体。
提供了一种检测本发明的蛋白质的方法,该方法包括下列步骤:(a)在适合形成抗体-抗原复合物的条件下使本发明的抗体和生物样品接触;和(b)检测所述复合物。
本发明的实施方案
以下是可用于实施本发明(例如为了免疫或诊断目的而使用所公开的序列)的标准技术和程序的综述。该综述不是对本发明的限制,相反它只是给出了一些可以使用但并非必需的例子。
综述
除非另有描述,本发明的实施将采用分子生物学、微生物学、重组DNA和免疫学的常规技术,这些均是本领域技术人员所知的。这些技术在下列文献中有全面的描述:例如,Sambrook《分子克隆:实验手册》第2版(1989);《DNA克隆》第I和II卷(D.N.Glover编1985);《寡核苷酸的合成》(M.J.Gait编,1984);《核酸的杂交》(B.D.Hames和S.J.Higgins编.1984);《转录和翻译》(B.D.Hames和S.J.Higgins编,1984);《动物细胞培养》(R.I.Freshney编,1986);《固定化细胞和酶》(IRL Press,1986);B.Perbal,《分子克隆实用指南》(1984);《酶学方法》系列丛书(Academic Press,Inc.),尤其是154和155卷;《哺乳动物细胞的基因转移载体》(J.H.Miller和M.P.Calos编,1987,Cold SpringHarbor Laboratory);Mayer和Walker编(1987),《细胞和分子生物学的免疫化学方法》(Academic Press,London);Scopes,(1987)《蛋白质的纯化:原理和实践》第2版(Springer-Verlag,N.Y.),以及《实验免疫学手册》I-IV卷(D.M.Weir和C.C.Blackwell编1986)。
在本说明书中采用了核苷酸和氨基酸的标准缩写。
当组合物中X+Y总重量的至少85%是X时,则称含有X的组合物“基本无Y”。较佳地,X占组合物中X+Y总重量的至少约90%,更佳地为至少约95%或者甚至99%(重量)。
术语“包含”指“含有”和“由……构成”,例如“包含”X的组合物可以完全由X构成,或者可以含有X之外的物质,例如X+Y。
术语“异源”指在自然界中发现不在一起的两种生物学组分。这种组分可以是宿主细胞、基因、或调控区如启动子。尽管异源组分在自然界中发现不在一起,但是它们能一起起作用,例如当与某基因异源的一种启动子与该基因操作性相连时。另一个例子是奈瑟球菌序列与小鼠宿主细胞异源。另一例子是来自相同或不同蛋白质的两个表位,它们已经以自然界没有的排列方式组装在一个蛋白质中。
“复制起点”是启动和调节多核苷酸(例如表达载体)复制的一种多核苷酸序列。复制起点可作为细胞内多核苷酸复制的自主性单位,能在其自身的控制下进行复制。复制起点是载体在特定宿主细胞中复制所需要的。有了某一复制起点,表达载体就能在细胞中合适蛋白的存在下高拷贝数地复制。这些起点的例子是在酵母中有效的自主复制序列;以及在COS-7细胞中有效的病毒性T-抗原。
“突变体”指与天然或已公开的序列不同但具有序列相同性的DNA、RNA或氨基酸序列。根据具体的序列,天然或已公开的序列与突变序列间序列相同性的程度宜高于50%(如60%、70%、80%、90%、95%、99%或更高,用上述Smith-Waterman算法计算)。如本文所述,本文提供的核酸序列的核酸分子或区域的“等位基因突变体”,是在另一或第二种分离物基因组的基本上同个基因座上存在的核酸或区域,它们由于例如突变或重组而导致的天然变异而具有类似但不相同的核酸序列。编码区域的等位基因突变体通常编码具有与相比较的基因所编码的蛋白质的类似的活性。等位基因突变体还可编码基因5’或3’未翻译区域(如调控区)中的变化(如,参见美国专利No.5,753,235)。
表达系统
奈瑟球菌属细菌的核苷酸序列可在各种不同的表达系统中表达;例如那些使用哺乳动物细胞、杆状病毒、植物、细菌和酵母的系统。
i.哺乳动物系统
哺乳动物表达系统是本领域中已知的。哺乳动物启动子是能结合哺乳动物RNA聚合酶并启动编码序列(如结构基因)的下游(3′)转录成mRNA的任何DNA序列。启动子具有一个转录起始区,其通常邻近编码序列的5′端,还具有一个TATA盒,其通常位于转录起始位点上游25-30个碱基对(bp)处。认为TATA盒指导RNA聚合酶II在正确位点开始RNA合成。哺乳动物启动子还含有一个上游启动子元件,其通常位于TATA盒上游100至200bp内。该上游启动子元件决定了转录启动的速度,并可在两个方向之一上起作用[Sambrook等人(1989)“克隆基因在哺乳动物细胞中的表达”《分子克隆:实验手册》,第2版]。
哺乳动物病毒基因通常是高表达的,具有广泛的宿主范围;因此,编码哺乳动物病毒基因的序列提供了特别有用的启动子序列。例子包括SV40早期启动子、小鼠乳腺肿瘤病毒LTR启动子、腺病毒主要晚期启动子(Ad MLP)以及单纯疱疹病毒启动子。另外,从非病毒基因(如鼠金属硫蛋白基因)衍生的序列也提供了有用的启动子序列。表达可以是组成型的或受调控的(诱导型),取决于启动子能否在激素反应性细胞中用促糖皮质激素诱导。
增强元件(增强子)的存在,联合上述启动子元件通常会提高表达水平。增强子是这样一种调控性DNA序列,当其与同源或异源启动子相连,合成在正常的RNA起始位点开始时,它能刺激转录提高1000倍。当增强子位于转录起始位点的上游或下游,处于正常或翻转方向,或距离启动子1000个核苷酸以上的距离时,它均具有活性[Maniatis等人(1987)Science 236:1237;Alberts等人(1989)《细胞分子生物学》,第2版]。从病毒衍生的增强子元件可能是特别有用的,因为它们通常具有较宽的宿主范围。例子包括SV40早期基因增强子[Dijkema等人(1985)EMBO J.4:761]以及衍生自Rous肉瘤病毒的长末端重复序列(LTR)的增强子/启动子[Gorman等人(1982b)Proc.Natl.Acad.Sci.79:6777]以及来自人巨细胞病毒的增强子/启动子[Boshart等人(1985)Cell 41:521]。另外,一些增强子仅仅在诱导物(例如激素或金属离子)的存在下是可调节的并具有活性[Sassone-Corsi和Borelli(1986)Trends Genet.2:215;Maniatis等人(1987)Science 236:1237]。
DNA分子可在哺乳动物细胞中胞内表达。启动子序列可以和DNA分子直接相连,在这种情况下,重组蛋白N端的第一个氨基酸始终是甲硫氨酸,其由ATG起始密码子编码。如果需要,可通过和溴化氰体外培育来从蛋白上切下此N端。
另外,外来蛋白也可从细胞中分泌到生长培养基中,方法是产生嵌合的DNA分子,该DNA分子编码的融合蛋白包括一前导序列片段,该片段在哺乳动物细胞中提供了外源蛋白的分泌。较佳的,在前导序列片段和外源基因之间可以有能在体内或体外断裂的加工位点。前导序列片段通常编码一种信号肽,该信号肽由指导从细胞分泌出蛋白质的疏水性氨基酸组成。腺病毒三联前导序列是哺乳动物细胞中分泌外来蛋白的一个前导序列的例子。
通常,哺乳动物细胞识别的转录终止和聚腺苷酸化序列是位于翻译终止密码子3′的调控区域,因此它和启动子元件一起侧接于编码序列。成熟mRNA的3′端由定点的转录后断裂和聚腺苷酸化形成[Birnstiel等人(1985)Cell 41:349;Proudfoot和Whitelaw(1988)″真核RNA的终端和3′端加工″《转录和剪接》(B.D.Hames和D.M.Glover编);Proudfoot(1989)Trends Biochem.Sci.14:105]。这些序列指导mRNA的转录,mRNA能被翻译成该DNA编码的多肽。转录终止子/聚腺苷酸化信号的例子包括从SV40衍生的那些[Sambrook等人(1989)“克隆基因在培养的哺乳动物细胞中的表达”《分子克隆:实验指南》]。
通常,上述组件,包括启动子、聚腺苷酸化信号以及转录终止序列被一起放入表达构建物中。如果需要,表达构建物中还包括增强子、具有功能性剪接供体和受体位点的内含子以及前导序列。构建物的表达通常以复制子形式维持,例如是能在宿主(如哺乳动物细胞或细菌)中稳定维持的染色体外元件(如质粒)。哺乳动物复制系统包括从动物病毒衍生的那些系统,其需要反式作用因子来进行复制。例如,含有乳多空病毒复制系统的质粒,如SV40[Gluzman(1981)Cell 23:175]或多瘤病毒,在合适的病毒T抗原的存在下复制出极高的拷贝数。哺乳动物复制子的其它例子包括衍生自牛乳头瘤病毒和EB病毒的复制子。另外,复制子可以有两个复制系统,从而使其能维持在例如哺乳动物细胞中进行表达并能在原核宿主中克隆和扩增。这些哺乳动物细菌穿梭载体的例子包括pMT2[Kaufman等人(1989)Mol.Cell.Biol.9:946]和pHEBO[Shimizu等人(1986)Mol.Cell.Biol.6:1074]。
所用的转化步骤取决于待转化的宿主。将异源多核苷酸导入哺乳动物细胞中的方法是本领域所知的,其包括葡聚糖介导的转染、磷酸钙沉淀、Polybrene(1,5-二甲基-1,5-二氮十一亚甲基聚甲溴化物)介导的转染、原生质体融合、电穿孔、将多核苷酸包裹在脂质体中以及将DNA直接显微注射到胞核中。
可作为宿主进行表达的哺乳动物细胞系是本领域中已知的,其包括许多从美国典型培养物保藏中心(ATCC)获得的无限增殖的细胞系,包括但不局限于,中国仓鼠卵巢(CHO)细胞、海拉细胞、乳仓鼠肾(BHK)细胞、猴肾细胞(COS)、人肝细胞癌细胞(如Hep G2)和其它许多细胞系。
ii.杆状病毒系统
也可将编码蛋白质的多核苷酸插入合适的昆虫表达载体中,并与该载体中的控制元件操作性相连。载体构建采用本领域已知的技术。总地来说,表达系统的组分包括一种转移载体,通常是细菌质粒,其含有杆状病毒基因组片段以及便于插入待表达异源基因的限制性位点;野生型杆状病毒,其序列与转移载体中的杆状病毒特异性片段同源(这使得异源基因能同源重组到杆状病毒基因组中);以及合适的昆虫宿主细胞和生长培养基。
将编码蛋白质的DNA序列插入转移载体中后,将载体和野生型病毒基因组转染到昆虫宿主细胞中,使载体和病毒基因组重组。表达包装的重组病毒,鉴定并纯化重组噬斑。杆状病毒/昆虫细胞表达系统材料及其方法,除别的以外,可以试剂盒形式购自Invitrogen,San Diego CA(″MaxBac″试剂盒)。这些技术通常是本领域技术人员所知的,在Summers和Smith的Texas AgriculturalExperiment Station Bulletin No.1555(1987)(后称“Summer和Smith的文章”)中有充分描述。
在将编码蛋白质的DNA序列插入杆状病毒基因组之前,通常将上述组件,包括启动子、前导序列(如果需要)、感兴趣的编码序列以及转录终止序列装配在中间置换型构建物(转移载体)中。该构建物可含有单个基因以及操作性相连的调控元件;多个基因,每个基因有其自己的一套操作性相连调控元件;或是由同一组调控元件调控的多个基因。中间置换型构建物通常保持在一个复制子中,例如能在宿主(如细菌)内稳定保持的染色体外元件(如质粒)。复制子将具有一个复制系统,从而使其能保持在合适的宿主中进行克隆和扩增。
目前,用来将外源基因导入AcNPV的最常用的转移载体是pAc373。还可设计本领域技术人员已知的其它许多载体。这些载体包括如pVL985(其将多角体蛋白的起始密码子从ATG变为ATT,并在ATT下游32个碱基对处引入一个BamHI克隆位点;见Luckow和Summers,Virology(1989)17:31)。
质粒通常还含有多角体蛋白聚腺苷酸化信号(Miller等人(1988)Ann.Rev.Microbiol.,42:177)以及用来在大肠杆菌中选择和繁殖的原核氨苄青霉素抗性(amp)基因和复制起点。
杆状病毒转移载体通常含有杆状病毒启动子。杆状病毒启动子是能结合杆状病毒RNA聚合酶并启动编码序列(如结构基因)下游(5′到3′)转录成mRNA的任何DNA序列。启动子具有一个转录起始区,该区通常邻近编码序列的5′端。该转录起始区通常包括一个RNA聚合酶结合位点以及一个转录起始位点。杆状病毒转移载体还可能具有称为增强子的第二区,如果该区域存在,它通常远离结构基因。表达可以是调控型或组成型的。
在病毒感染周期晚期大量转录的结构基因提供了特别有用的启动子序列。例子包括从编码病毒多角体蛋白的基因衍生获得的序列,Friesen等人(1986)“杆状病毒基因表达的调控”《杆状病毒分子生物学》(Walter Doerfler编辑);EPO公开号127 839和155 476;以及编码p10蛋白的基因,Vlak等人(1988),J.Gen.Virol.69:765。
编码合适的信号序列的DNA可以衍生自分泌的昆虫或杆状病毒蛋白的基因(如杆状病毒多角体蛋白基因)(Carbonell等人,(1988)Gene,73:409)。另外,由于哺乳动物细胞翻译后修饰(如信号肽断裂、蛋白水解断裂和磷酸化)的信号看来可被昆虫细胞识别,且分泌和胞核积累所需的信号看来在无脊椎动物细胞和脊椎动物细胞之间是保守的,因此也可用非昆虫来源的前导序列来提供昆虫中的分泌,这些前导序列例如是从编码人α-干扰素(Maeda等人(1985),Nature315:592)、人胃泌素释放的肽(Lebacq-Verheyden等人(1988),Molec.Cell.Biol.8:3129)、人IL-2(Smith等人(1985)Proc.Nat’l.Acad Sci.USA,82:8404)、小鼠IL-3(Miyaiima等人(1987)Gene 58:273)和人葡糖脑苷脂酶(Martin等人(1988)DNA,7:99)的基因衍生获得的。
重组多肽或聚蛋白可以在胞内表达,或如果它是用合适的调控序列表达的,就可被分泌。非融合的外源蛋白良好的胞内表达通常需要理想地具有短前导序列的异源基因在ATG起始信号前有合适的翻译起始信号。如果需要,可通过和溴化氰体外培育,从成熟蛋白上切下N端甲硫氨酸。
另外,通过产生嵌合的DNA分子将非天然分泌的重组聚蛋白或蛋白从昆虫细胞中分泌出来,该嵌合的DNA分子所编码的融合蛋白包含一前导序列片段,该片段提供了从昆虫中分泌外源蛋白的作用。该前导序列片段通常编码一种信号肽,该信号肽包含的疏水性氨基酸引导蛋白质转移到内质网中。
在插入了编码该蛋白表达产物前体的DNA序列和/或基因后,用转移载体的异源DNA和野生型杆状病毒的基因组DNA共同转化(通常是共转染)昆虫细胞宿主。此构建物的启动子和转录终止序列通常包含杆状病毒基因组2-5kb片段。将异源DNA引入杆状病毒中所需位点内的方法是本领域所知的。(见Summers和Smith的文章,同上;Ju等人(1987);Smith等人,Mol.Cell.Biol.(1983)3:2156;和Luckow和Summers(1989))。例如,插入可以是通过同源双交换重组来插入一个基因如多角体蛋白基因中;插入还可以是插入构建的所需杆状病毒基因内的限制性酶切位点中。Miller等人(1989),Bioessays 4:91。当DNA序列被克隆在表达载体多角体蛋白基因位置中时,其5′和3′均侧接了多角体蛋白特异性序列,并位于多角体蛋白启动子的下游。
随后将新形成的杆状病毒表达载体包装到感染性重组杆状病毒中。发生频率很低(在约1%和5%之间)的同源重组;因此,共转染后产生的大多数病毒仍是野生型病毒。因此,需要用一种方法来鉴别重组病毒。该表达系统的一个优点是肉眼筛选能区分重组病毒。在病毒感染后期,天然病毒产生的多角体蛋白在受其感染细胞的胞核中产生的水平非常高。累积的多角体蛋白形成的包涵体,其还含有包埋颗粒。这些大小至多为15微米的包涵体具有高度的折光性,从而使它们呈现明亮的发光外观,在光学显微镜下很容易观察。感染了重组病毒的细胞缺少包涵体。为了区分重组病毒和野生型病毒,用本领域已知的技术将转染上清接种到单层昆虫细胞上形成噬斑。即,在光学显微镜下筛选存在(表明是野生型病毒)或不存在(表明是重组病毒)包涵体的噬斑。“当代微生物学方法”第2卷(Ausubel等人编辑),16.8(增补10,1990);Summers和Smith的文章,同上;Miller等人(1989)。
已经开发出感染进入几种昆虫细胞的重组杆状病毒表达载体。例如,已经开发出用于感染以下昆虫细胞的重组杆状病毒:埃及伊蚊(Aedes aegypti)、苜蓿丫纹夜蛾(Autographa californica)、家蚕(Bombyx mori)、黑尾果蝇(Drosophilamelanogaster)、草地夜蛾(Spodoptera frugiperda)和粉纹夜蛾(Trichoplusiani)(WO 89/046699;Carbonell等人(1985)J.Virol.56:153;Wright(1986)Nature321:718;Smith等人(1983)Mol.Cell.Biol.3:2156;综述见Fraser等人(1989)InVitro Cell.Dev.Biol.25:225)。
可以购得细胞和细胞培养基用于在杆状病毒/表达系统中直接表达和融合表达异源多肽;细胞培养技术是本领域技术人员通常所知的。参见Summers和Smith的文章,同上。
然后,经修饰的昆虫细胞可以生长在合适的营养培养基中,该培养基能稳定地保持该质粒于修饰的昆虫宿主中。当表达产物的基因处于可诱导的控制下时,可以使宿主生长至高密度,并诱导表达。另外,当表达是组成型时,产物将被连续表达到培养基中,营养性培养基必需不断循环,取出感兴趣的产物同时补充消耗的营养物。产物可用以下这些技术来纯化:例如层析,如HPLC、亲和层析、离子交换层析等;电泳;密度梯度离心;溶剂抽提等。产物可按需作进一步纯化,以基本上除去所有也分泌到培养基中或由昆虫细胞裂解而产生的昆虫蛋白,以提供一种至少基本上不含宿主碎片如蛋白质、脂质和多糖的产物。
为了获得蛋白质的表达,将从转化子衍生获得的重组宿主细胞培育在允许重组蛋白的编码序列表达的条件下。这些条件将随所选定的宿主细胞而变。然而,本领域技术人员容易根据本领域已知的知识来确定该条件。
iii.植物系统
本领域已知有许多植物细胞培养系统和全植物遗传表达系统。典型的植物细胞基因表达系统包括在以下专利中描述的那些,如:US 5,693,506;US5,659,122;和US 5,608,143。Zenk,Phytochemistry 30:3861-3863(1991)中描述了在植物细胞培养物中遗传表达的其它例子。除上述参考文献外,关于植物蛋白信号肽的描述还可在下列文献中找到:Vaulcombe等人,Mol.Gen.Genet.209:33-40(1987);Chandler等人,Plant Molecular Biology 3:407-418(1984);Rogers,J.Biol.Chem.260:3731-3738(1985);Rothstein等人,Gene 55:353-356(1987);Whittier等人,Nucleic Acids Research 15:2515-2535(1987);Wirsel等人,Molecular Microbiology 3:3-14(1989);Yu等人,Gene 122:247-253(1992)。关于用植物激素、赤霉素酸和赤霉素酸诱导分泌的酶调节植物基因表达的描述可在R.L.Jones和J.MacMillin,Gibberellins,《植物生理学进展》,Malcolm B.Wilkins编辑,1984 Pitman Publishing Limited,London,21-52页中找到。描述其它调节代谢的基因的参考文献参见:Sheen,Plant Cell,2:1027-1038(1990);Maas等人,欧洲分子生物学协会杂志(EMBO J.)9:3447-3452(1990);Benkel和Hickey,美国科学院院报(Proc.Natl.Acad.Sci.).84:1337-1339(1987)。
通常,利用本领域已知的技术,将所需的多核苷酸序列插入一表达盒中,该表达盒含有为在植物中操作而设计的基因调控元件。将该表达盒插入所需的表达载体中,表达盒的上游和下游有适合在植物宿主中表达的伴随序列。这些伴随序列可来自质粒或病毒,并为载体提供所需的性能,以允许载体将DNA从起初的克隆宿主(如细菌)中移动到所需植物宿主中。基础的细菌/植物载体构建物最好能提供宽的宿主范围原核复制起点;原核可选择的标记;以及,对于农杆菌转化而言,宜提供T DNA序列用于农杆菌介导的转移至植物染色体。当异源基因不易检测时,该构建物最好还具有一个适用于确定植物细胞是否已经转化的可选择标记基因。关于合适标记(例如对于禾草类家族成员)的综述可在Wilmink和Dons,1993,Plant Mol.Biol.Reptr,11(2):165-185中找到。
还建议采用适合将异源序列整合到植物基因组中的序列。这些序列可能包括用于同源重组的转座子序列以及允许将异源表达盒随机插入植物基因组中的Ti序列。合适的原核可选择标记包括抗生素(如氨苄青霉素或四环素)抗性标记。编码其它功能的其它DNA序列也可存在于载体中,这是本领域所知的。
本发明的核酸分子可包括在一个表达盒中来表达感兴趣的蛋白质。通常只要一个表达盒,但是两个或多个表达盒也是可行的。除了编码异源蛋白的序列外,重组表达盒还含有下列元件:启动子区域、植物5′非翻译序列、起始密码子(根据结构基因原来是否具有而定)、以及转录和翻译终止序列。表达盒5′和3′端的独特限制性酶位点能使表达盒方便地插入预先存在的载体中。
异源编码序列可以用于任何与本发明有关的蛋白。编码感兴趣的蛋白的序列将编码出一个信号肽,该信号肽能适当地加工和转运蛋白质,并且通常缺少可能会导致本发明的所需蛋白与膜结合的序列。由于对于大部分来说,转录起始区将针对发芽期间表达和转运的基因,采用提供转运的信号肽,也可提供转运感兴趣的蛋白质。通过这种方式,感兴趣的蛋白将从表达该蛋白的细胞中转运出来,并能被有效地收获。通常,种子中的分泌是通过糊粉或小盾体上皮层进入种子的胚乳。尽管不需要使蛋白从产生该蛋白的细胞中分泌出来,但是这种分泌有利于重组蛋白的分离和纯化。
由于所需基因产物的最终表达将在真核细胞中进行,因此需要确定克隆的基因部分是否含有作为内含子被宿主剪接体机制加工的序列。如果是这样,需要对“内含子”区进行定点诱变,以防止一部分遗传信息作为错误的内含子密码而丧失,Reed和Maniatis,Cell 41:95-105,1985。
可用微量移液管以机械方式转移重组DNA,将载体直接显微注射到植物细胞中。Crossway,Mol.Gen.Genet,202:179-185。还可用聚乙二醇将遗传物质转移到植物细胞中,Krens等人,Nature,296,72-74,1982。导入核酸片段的另一种方法是用小颗粒进行高速弹道贯穿,在这些小珠或颗粒的基质中或表面上带有核酸,Klein等人,Nature,327,70-73,1987,Knudsen和Muller,1991,Planta,185:330-336提出用颗粒轰击大麦胚乳以产生转基因大麦。还有一种导入方法是使原生质体和其它实体(微细胞(minicell)、细胞、溶酶体或其它可融合的脂质表面体)融合,Fraley等人,美国科学院院报(Proc.Natl.Acad.Sci.USA),79,1859-1863,1982。
载体也可通过电穿孔导入植物细胞中。(Fromm等人,PNAS82:5824,1958)。在该技术中,在含有基因构建物的质粒存在下电穿孔植物原生质体。高电场强度的电脉冲使生物膜可逆地被通透,从而允许导入质粒。电穿孔的植物原生质体重新形成细胞壁,分裂并形成植物愈伤组织。
能分离出原生质体并能培育成全再生植物的所有植物,都能用本发明进行转化,从而回收得到含有转基因的全植物。已经知道实际上可以从培育的细胞或组织再生所有的植物,其包括但不局限于,甘蔗、甜菜、棉花、果实和其它树、豆科植物和蔬菜的所有主要种类。一些合适的植物包括,例如,草莓属、莲花属、苜蓿属、驴食豆属、三叶草属、胡卢巴属、豇豆属、柑橘属、亚麻属、老鹳草属、木薯属(Manihot)、胡萝卜属(Daucus)、鼠耳芥属、芸苔属、萝卜属、白芥属、颠茄属、辣椒属、曼陀罗属、天仙子属、番茄属、烟草属、茄属、碧冬茄属、毛地黄属、Majorana、菊苣属、向日葵属、莴苣属、雀麦属、天门冬属、金鱼草属、龙骨角属、龙面花属(Nemesia)、天竺葵属、稷属、狼尾草属、毛茛属、千里光属、蛾蝶花属(Salpiglossis)、香瓜属、Browaalia、大豆属、黑麦草属、玉蜀黍属、小麦属、蜀黍属和曼陀罗属各种类。
再生方式随各种植物而有所不同,但是通常是首先提供含有异源基因拷贝的转化的原生质体悬液。形成愈伤组织,从愈伤组织中诱生出枝条,随后是根。另外,从原生质体悬液可以诱生形成胚。这些胚象天然的胚那样发芽形成植物。培养基通常含有各种氨基酸和激素,如植物生长素和细胞分裂素。尤其是对于玉米和苜蓿属来说,在培养基中加入谷氨酸和脯氨酸也是很有利的。枝条和根通常同时发育。有效的再生取决于培养基、基因型以及培养史。如果控制了这三个变量,那么再生能完全再现和重复。
在一些植物细胞培养系统中,本发明所需的蛋白可能被分泌出来,或者蛋白可从全植物中提取出来。当本发明所需的蛋白被分泌到培养基中后,就可进行收集。或者,可以用机械方式破碎胚以及无胚-半种子或其它植物组织,以释放出分泌到细胞和组织之间的蛋白。将该混合物悬于缓冲液中,以收回可溶性蛋白。然后用常规的蛋白分离和纯化方法纯化重组蛋白。用常规方法调节时间、温度、pH、氧和体积等参数,以优化异源蛋白的表达和回收。
iv.细菌系统
细菌表达技术是本领域已知的。细菌启动子是能结合细菌RNA聚合酶并启动下游(3′)编码序列(如结构基因)转录成mRNA的DNA序列。启动子具有一个转录起始区,其通常位于编码序列的5′端附近。该转录起始区通常包括RNA聚合酶结合位点以及一个转录起始位点。细菌启动子可能还有第二个功能区域称为操纵子,它可能与毗邻的RNA合成开始的RNA聚合酶结合位点重叠。该操纵子允许负调节(可诱导)的转录,因为基因阻遏蛋白可能结合操纵子并因而抑制特定基因的转录。在负调节元件(如操纵子)不存在时,可能发生组成型表达。另外,正调节可通过基因激活蛋白结合序列来实现,如果有的话,该结合序列通常邻近RNA聚合酶结合序列的(5′)。基因激活蛋白的例子是分解代谢物激活剂蛋白(CAP),它帮助启动大肠杆菌(E.coli)中的lac操纵子的转录[Raibaud等人(1984)Annu.Rev.Genet.18:173]。因此,表达的调控可能是正作用或负作用,从而增强或减弱转录。
编码代谢途径中的酶的序列提供了特别有用的启动子序列。例子包括衍生自糖(如半乳糖、乳糖(lac)[Chang等人(1977)Nature 198:1056]和麦芽糖)代谢酶的启动子序列。其它例子包括衍生自生物合成酶(如色氨酸(trp))[Goeddel等人(1980)Nuc.Acids Res.8:4057;Yelverton等人(1981)Nucl.Acids Res.9:731;美国专利4,738,921;EP-A-0036776和EP-A-0121775]的启动子序列。β-内酰胺酶(bla)启动子系统[Weissmann(1981)″干扰素的克隆和其它错误″《干扰素3》(I.Gresser编辑)],λ噬菌体PL[Shimatake等人(1981)Nature 292:128]和T5[美国专利4,689,406]启动子系统也提供了有用的启动子序列。
另外,非天然存在的合成的启动子也可象细菌启动子一样起作用。例如,一种细菌或噬菌体启动子的转录激活序列可以和另一种细菌或噬菌体启动子的操纵子序列连接在一起,形成合成的杂交启动子[美国专利4,551,433]。例如,tac启动子是杂合的trp-lac启动子,它由trp启动予以及受lac阻遏蛋白调节的lac操纵子序列组成[Amann等人(1983)Gene 25:167;de Boer等人,(1983)Proc.Natl.Acad.Sci.80:21]。另外,细菌启动子可包括非细菌来源但能结合细菌RNA聚合酶并启动转录的天然存在的启动子。天然存在的非细菌来源的启动子还能和相容的RNA聚合酶偶联在一起,从而在原核细胞中高水平地表达某些基因。噬菌体T7 RNA聚合酶/启动子系统就是一种偶联的启动子系统[Studier等人(1986)J.Mol.Biol.189:113;Tabor等人(1985)Proc.Natl.Acad.Sci.82:1074]。另外,杂合的启动子还可由噬菌体启动子以及大肠杆菌操纵子区域组成(EP-A-0267 851)。
除了有功能的启动子序列外,有效的核糖体结合位点对于外来基因在原核细胞中的表达也是有用的。在大肠杆菌中,核糖体结合位点称为Shine-Dalgarno(SD)序列,其包括起始密码子(ATG)以及在起始密码子上游3-11个核苷酸处的长度为3-9个核苷酸的序列[Shine等人(1975)Nature 254:34]。认为SD序列是通过SD序列和大肠杆菌16S rRNA的3′端之间碱基配对来促进mRNA与核糖体结合的[Steitz等人(1979)″信使RNA中的遗传信号和核苷酸序列″生物学调节和发育:基因表达″(编者R.F.Goldberger)]。为了表达具有弱的核糖体结合位点的原核基因和真核基因[Sambrook等人(1989)″克隆基因在大肠杆菌中的表达″《分子克隆实验手册》]。
DNA分子可以在胞内表达。启动子序列可以直接与DNA分子相连,在这种情况下,N端的第一个氨基酸始终是甲硫氨酸,其由ATG起始密码子编码。如果需要,可通过和溴化氰体外培育或通过和细菌甲硫氨酸N-端肽酶体内或体外培育,将N端的甲硫氨酸从蛋白质上切下(EP-A-0219 237)。
融合蛋白为直接表达提供了另一种方法。通常,将编码内源细菌蛋白或其它稳定的蛋白之N端部分的DNA序列与异源编码序列的5′端融合。在表达时,该构建物将提供这两个氨基酸序列的融合物。例如,λ噬菌体细胞基因可以和外源基因的5′端相连并在细菌中表达。所得融合蛋白宜保留一个酶(因子Xa)加工位点,以便将噬菌体蛋白与外源基因切开[Nagai等人(1984)Nature 309:810]。融合蛋白也可用lacZ[Jia等人(1987)Gene 60:197],trpE[Allen等人(1987)J.Biotechnol.5:93;Makoff等人(1989),J.Gen.Microbiol.135:11]以及Chey[EP-A-0324 647]基因的序列组成。两个氨基酸序列连接处的DNA序列可以编码或不编码一可切割的位点。另一个例子是遍在蛋白融合蛋白。这种融合蛋白由遍在蛋白区域组成,该区域宜保留一个酶(例如遍在蛋白特异性加工蛋白酶)加工位点,以便将外源蛋白和遍在蛋白切开。通过这种方法,可以分离获得天然的外源蛋白[Miller等人(1989)Bio/Technology 7:698]。
另外,还可通过产生嵌合的DNA分子来将外源蛋白分泌出细胞,该嵌合的DNA分子编码的融合蛋白含有一个信号肽序列片段,该序列片段能使细菌中的外源蛋白分泌出来[美国专利4,336,336]。信号序列片段通常编码一个信号肽,该信号肽含有疏水性氨基酸,能指引蛋白分泌出细胞。蛋白质被分泌到生长培养基(革兰阳性菌)中或细胞内膜和外膜之间的周质间隙内(革兰阴性菌)。在编码的信号肽片段和外源基因之间宜具有能在体内或体外切割的加工位点。
编码合适信号序列的DNA可以从分泌性细菌蛋白的基因衍生获得,这些基因例如是大肠杆菌外膜蛋白基因(ompA)[Masui等人(1983),《基因表达的实验操作》;Ghrayeb等人(1984)EMBO J.3:2437]以及大肠杆菌碱性磷酸酶信号序列(phoA)[Oka等人(1985)Proc.Natl.Acad.Sci.82:7212]。另一个例子是,可采用各种芽孢杆菌菌株的α淀粉酶基因的信号序列将异源蛋白分泌出枯草芽孢杆菌[Palva等人(1982)Proc.Natl.Acad.Sci.USA 79:5582;EP-A-0244 042]。
通常,细菌所识别的转录终止序列是位于翻译终止密码子3′的调控区,它和启动子一起侧接在编码序列的两侧。这些序列指导mRNA的转录,而mRNA能被翻译成该DNA所编码的多肽。转录终止序列通常包括约50个核苷酸的DNA序列,该序列能形成帮助终止转录的茎环结构。例子包括衍生自具有强启动子的基因(如大肠杆菌中的trp基因以及其它生物合成的基因)的转录终止序列。
上述组件,包括启动子、信号序列(如果需要)、感兴趣的编码序列以及转录终止序列通常一起被放在表达构建物中。表达构建物通常以复制子的形式维持,例如能在宿主(如细菌)中稳定维持的染色体外元件(如质粒)。复制子具有一个复制系统,从而允许其维持在原核宿主中或进行表达或进行克隆和扩增。另外,复制子可以是高拷贝数或低拷贝数的质粒。高拷贝数质粒的拷贝数大致在约5至200之间,通常在约10至150之间。含有高拷贝数质粒的宿主宜含有至少约10个质粒,更佳的含有至少约20个质粒。根据载体以及外源蛋白对宿主的影响,可以选择高拷贝数或低拷贝数的载体。
另外,表达构建物可以和一个整合载体一起整合入细菌基因组中。整合载体通常含有至少一个序列与细菌染色体同源,从而允许该载体整合。整合看来是载体和细菌染色体中的同源DNA之间重组的结果。例如,用不同芽孢杆菌菌株的DNA构建的整合载体整合到芽孢杆菌染色体中(EP-A-0127 328)。整合载体还可包含噬菌体或转座子序列。
通常,染色体外构建物以及整合的表达构建物可含有可选择的标记,以便选择已经转化的菌株。可选择标记可在细菌宿主中表达,其包括赋予细菌对药物(如氨苄青霉素、氯霉素、红霉素、卡那霉素(新霉素)和四环素)抗性的基因[Davies等人(1978)Annu.Rev.Microbiol.32:469]。可选择标记还可包括生物合成性基因,如在组氨酸、色氨酸以及亮氨酸生物合成途径中的那些基因。
另外,上述某些组件可以一起放在转化载体中。转化载体通常包含一个可选择标记,如上所述,该载体以复制子形式维持或发展成一个整合载体。
已经开发出了用于转化到许多细菌中的表达和转化载体(无论是染色体外复制子还是整合载体)。例如,已经开发出了用于下列细菌的表达载体:枯草芽孢杆菌[Palva等人,(1982)Proc.Natl.Acad.Sci.USA 79:5582;EP-A-0036 259和063 953;WO 84/04541],大肠杆菌[Shimatake等人,(1981)Nature 292:128;Amann等人,(1985)Gene 40:183;Studier等人,(1986)J.Mol.Biol.189:113;EP-A-0036 776、136 829和136 907],酪链球菌[Powell等人,(1988)Appl.Environ.Microbiol.54:655];浅青紫链球菌[Powell等人,(1988)Appl.Environ.Microbiol.54:655],浅青紫链霉菌[美国专利4,745,056]。
将外源DNA导入细菌宿主的方法是本领域熟知的,通常包括用氯化钙或其它试剂(如二价阳离子和二甲亚砜)处理对细菌进行转化。DNA还可通过电穿孔方法导入细菌细胞。转化程序通常因待转化的细菌种类而不同。[例如参见,例如使用杆菌:Masson等人,(1989)FEMS Microbiol.Lett.60:273;Palva等人,(1982)Proc.Natl.Acad.Sci.USA 79:5582;EP-A-0036 259和063 953;WO84/04541;使用弯曲杆菌:Miller等人,(1988)Proc.Natl.Acad.Sci.85:856;和Wang等人,(1990)J.Bacteriol.172:949;使用埃希氏大肠杆菌:Cohen等人,(1973)Proc.Natl.Acad.Sci.69:2110;Dower等人,(1988)Nucleic Acids Res.16:6127;Kushner(1978)″用ColEl-衍生质粒转化大肠杆菌的改进方法″GeneticEngineering:Proceedings of the International Symposium on Genetic Engineering(H.W.Boyer和S.Nicosia编辑);Mandel等人,(1970)J.Mol.Biol.53:159;Taketo(1988)Biochim.Biophys.Acta 949:318;使用乳酸杆菌:Chassy等人,(1987)FEMSMicrobiol.Lett.44:173;使用假单胞菌:Fiedler等人,(1988)Anal.Biochem170:38;使用葡萄球菌:Augustin等人,(1990)FEMS Microbiol.Lett.66:203;使用链球菌:Barany等人,(1980)J.Bacteriol.144:698;Harlander(1987)″用电穿孔转化链球菌产乳酸微生物″Streptococcal Genetics(J.Ferretti和R.CurtissIII编辑);Perry等人,(1981)Infect.Immun.32:1295;Powell等人,(1988)Appl.Environ.Microbiol.54:655;Somkuti等人,(1987)Proc.4th Evr.Cong.Biotechnology 1:412]。
v.酵母表达
酵母表达系统也是本领域技术人员所知的。酵母启动子是能结合酵母RNA聚合酶并启动下游(3′)编码序列(如结构基因)转录成mRNA的DNA序列。启动子具有一个转录起始区,它通常位于编码序列的5′端附近。该转录起始区通常包括RNA聚合酶结合位点(″TATA盒″)以及一个转录起始位点。酵母启动子可能还有第二个功能区域称为上游激活序列(UAS),如果存在的话,它通常远离结构基因。UAS允许调节(可诱导)的表达。在UAS不存在时,发生组成型表达。表达的调控可能是正作用或负作用的,从而增强或减弱转录。
酵母是一种发酵生物体,具有活泼的代谢途径,因此编码代谢途径中的酶的序列提供了特别有用的启动子序列。例子包括醇脱氢酶(ADH)(EP-A-0284044)、烯醇酶、葡萄糖激酶、葡萄糖-6-磷酸异构酶、甘油醛-3-磷酸-脱氢酶(GAP或GAPDH)、己糖激酶、磷酸果糖激酶、3-磷酸甘油酸变位酶、以及丙酮酸激酶(PyK)(EP-A-0329 203)。编码酸性磷酸酶的酵母PHO5基因也提供了有用的启动子序列[Myanohara等人(1983)Proc.Natl.Acad.Sci.USA 80:1]。
另外,非天然存在的合成的启动子也可象酵母启动子一样起作用。例如,一种酵母启动子的UAS序列可以和另一种酵母启动子的转录激活区连接在一起,形成合成的杂合启动子。这种杂合启动子的例子包括与GAP转录激活区相连的ADH调控序列(美国专利No.4,876,197和4,880,734)。杂合启动子的其它例子包括由ADH2、GAL4、GAL10或PHO5基因的调控序列组成的启动子与糖酵解酶基因如GAP或PyK的转录激活区的组合(EP-A-0164 556)。另外,酵母启动子可包括非酵母来源但能结合酵母RNA聚合酶并启动转录的天然存在的启动子。这些启动子的例子包括,尤其是,[Cohen等人,(1980)Proc.Natl.Acad.Sci.USA 77:1078;Henikoff等人,(1981)Nature 283:835;Hollenberg等人,(1981)Curr.Topics Microbiol.Immunol.96:119;Hollenberg等人,(1979)″细菌抗生素抗性基因在酿酒酵母中的表达″Plasmids of Medical,Environmentaland Commercial Importance(K.N.Timmis和A.Puhler编辑);Mercerau-Puigalon等人,(1980)Gene 11:163;Panthier等人,(1980)Curr.Genet.2:109]。
DNA分子可以在酵母菌胞内表达。启动子序列可以直接与DNA分子相连,在这种情况下,重组蛋白N端的第一个氨基酸始终是甲硫氨酸,其由ATG起始密码子编码。如果需要,可通过和溴化氰体外培育将N端的甲硫氨酸从蛋白质上切下。
象在哺乳动物、杆状病毒以及细菌表达系统中一样,融合蛋白为酵母表达系统提供了另一种方法。通常,将编码内源酵母蛋白或其它稳定的蛋白之N端部分的DNA序列与异源编码序列的5′端融合。在表达时,该构建物将提供这两个氨基酸序列的融合物。例如,酵母或人超氧化物歧化酶(SOD)基因可以和外源基因5′端相连并在酵母中表达。两个氨基酸序列连接处的DNA序列可以编码或不编码可切割的位点。例如参见EP-A-0196 056。另一个例子是遍在蛋白融合蛋白。这种融合蛋白由遍在蛋白区域组成,该区域宜保留一个酶(例如遍在蛋白特异性加工蛋白酶)加工位点,以便将外源蛋白和遍在蛋白切开。因此,通过这种方法,可以分离获得天然的外源蛋白(例如WO88/024066)。
另外,还可通过产生嵌合的DNA分子来将外源蛋白从细胞分泌到生长培养基中,该嵌合的DNA分子编码的融合蛋白含有一个前导序列片段,该前导序列片段能使酵母中的外源蛋白分泌出来。较佳的,在编码的前导片段和外来基因之间宜具有能在体内或体外切割的加工位点。该前导序列片段通常编码了含有疏水性氨基酸的信号肽,其引导蛋白从细胞分泌出来。
编码合适信号序列的DNA可以从分泌性酵母蛋白的基因衍生获得,这些基因例如有酵母转化酶基因(EP-A-0012 873;JPO 62:096,086)以及A-因子基因(美国专利4,588,684)。另外,非酵母来源的前导序列(如干扰素前导序列)的存在也能提供分泌出酵母的作用(EP-A-0060 057)。
较佳的一类分泌前导序列采用了酵母α-因子基因的片段,其含有″pre″信号序列和″pro″区。可采用的α因子片段的类型包括全长pre-proα因子前导序列(约83个氨基酸残基)以及截短的α-因子前导序列(通常约25至50个氨基酸残基)(美国专利4,546,083和4,870,008;EP-A-0324 274)。采用α-因子前导片段提供分泌作用的其它前导序列包括杂合的α-因子前导序列,其由第一个酵母的pre序列以及第二个酵母α因子的pro区域组成(例如见WO 89/02463)。
通常,酵母识别的转录终止序列是位于翻译终止密码子3′的调控区,其和启动子一起侧接在编码序列的两侧。这些序列指导mRNA的转录,而mRNA能被翻译成该DNA所编码的多肽。转录终止序列和其它酵母识别的终止序列的例子是编码糖酵解酶的那些转录终止序列。
上述组件,包括启动子、前导序列(如果需要时)、感兴趣的编码序列以及转录终止序列,通常被一起放在表达构建物中。表达构建物通常以复制子的形式保持,例如能在宿主(如酵母或细菌)中稳定保持的染色体外元件(如质粒)。复制子可能具有两个复制系统,从而允许其能维持在例如酵母中进行表达,并能维持在原核宿主进行克隆和扩增。这些酵母-细菌穿梭载体的例子包括YEp24[Botstein等人(1979)Gene 8:17-24],pCL/1[Brake等人,(1984)Proc.Natl.Acad.Sci.USA 81:4642-4646]和YRp17[Stinchcomb等人(1982)J.Mol.Biol.158:157]。另外,复制子可以是高拷贝数或低拷贝数的质粒。高拷贝数质粒的拷贝数大致在约5至200之间,通常在约10至150之间。含有高拷贝数质粒的宿主宜含有至少约10个质粒,更佳的含有至少约20个质粒。根据载体以及外源蛋白对宿主的影响,可以选择高拷贝数或低拷贝数的载体。例如参见Brake等人,同上。
另外,表达构建物可以和一个整合载体一起整合入酵母基因组中。整合载体通常含有至少一个序列与酵母染色体同源,从而允许该载体整合,最好含有两个同源序列侧接该表达构建物。整合看来是载体和酵母染色体中同源DNA之间重组的结果[Orr-Weaver等人(1983)Methods in Enzymol.101:228-245]。通过选择合适的同源序列插入载体中,可将整合载体导入酵母中某一特定的基因座。见Orr-Weaver等人,同上。可以整合入一个或多个表达构建物,这可能会影响重组蛋白产生的水平[Rine等人(1983)Proc.Natl.Acad.Sci.USA 80:6750]。载体中的染色体序列可以载体中的单个片段形式存在(从而导致整个载体的整合),或是与染色体中的相邻片段同源的两个片段,这两个片段在载体中侧接在表达构建物两侧,从而可导致仅表达构建物的稳定性整合。
通常,染色体外构建物以及整合的表达可建物均含有可选择的标记,以便选择已经转化的酵母菌株。可选择标记可包括能在酵母宿主中表达的生物合成基因(如ADE2、HIS4、LEU2、TRP1和ALG7以及G418抗性基因),这些基因分别赋予酵母细胞对衣霉素以及G418的抗性。另外,合适的可选择标记还可能为酵母在毒性化合物(如金属)存在下提供生长能力。例如,CUP1的存在使酵母能在铜离子存在下生长[Butt等人,(1987)Microbiol,Rev.51:351]。
另外,上述某些组件可以一起放在转化载体中。转化载体通常包含一个可选择标记,如上所述,该载体以复制子形式维持或发展成一个整合载体。
已经开发出了用于转化入许多酵母中的表达和转化载体(无论是染色体外复制子还是整合载体)。例如,已经开发出用于下列酵母菌的表达载体:白色念珠菌[Kurtz,等人,(1986)Mol.Cell.Biol.6:142],麦芽糖念珠菌[Kunze,等人,(1985)J.Basic Microbiol.25:141],多形汉逊酵母[Gleeson,等人,(1986)J.Gen.Microbiol.132:3459;Roggenkamp等人,(1986)Mol.Gen.Genet.202:302],脆壁克鲁维酵母[Das,等人,(1984)J.Bacteriol.158:1165],乳酸克鲁维酵母[DeLouvencourt等人,(1983)J.Bacteriol.154:737;Van den Berg等人,(1990)Bio/Technology 8:135],季也蒙毕赤酵母[Kunze等人,(1985)J.Basic Microbiol.25:141],巴斯德毕赤酵母[Cregg,等人,(1985)Mol.Cell.Biol.5:3376;美国专利No.4,837,148和4,929,555],酿酒酵母[Hinnen等人,(1978)Proc.Natl.Acad.Sci.USA 75:1929;Ito等人,(1983)J.Bacteriol.153:163],栗酒裂植酵母[Beach和Nurse(1981)Nature 300:706],以及Yarrowia lipolytica[Davidow,等人,(1985)Curr.Genet.10:380471 Gaillardin,等人,(1985)Curr.Genet.10:49]。
将外源DNA导入酵母宿主的方法是本领域熟知的,通常包括用碱阳离子处理转化原生质球或完整酵母细胞。转化程序通常因待转化的酵母种类而不同。例如参见,[Kurtz等人,(1986)Mol.Cell.Biol.6:142;Kunze等人,(1985)J.Basic Microbiol.25:141;念珠菌];[Gleeson等人,(1986)J.Gen.Microbiol.132:3459;Roggenkamp等人,(1986)Mol.Gen.Genet.202:302;汉逊酵母];[Das等人,(1984)J.Bacteriol.158:1165;De Louvencourt等人,(1983)J.Bacteriol.154:1165;Van den Berg等人,(1990)Bio/Technology 8:135;克鲁维酵母];[Cregg等人,(1985)Mol.Cell.Biol.5:3376;Kunze等人,(1985)J.Basic Microbiol.25:141;美国专利No.4,837,148和4,929,555;毕赤酵母];[Hinnen等人,(1978)Proc.Natl.Acad.Sci.USA 75;1929;Ito等人,(1983)J.Bacteriol.153:163酿酒酵母];[Beach和Nurse(1981)Nature 300:706;裂殖酵母];[Davidow等人,(1985)Curr.Genet.10:39;Gaillardin等人,(1985)Curr.Genet.10:49;Yarrowia]。
抗体
本文所用的术语“抗体”指由至少一个抗体结合位点组成的一个或一组多肽。“抗体结合位点”是一个三维结合空间,其内表面形状和电荷分布与抗原表位的特征互补,从而使抗体与抗原结合。“抗体”例如包括,脊椎动物抗体、杂合抗体、嵌合抗体、人源化抗体、经修饰的抗体、单价抗体、Fab蛋白以及单结构域抗体。
针对本发明蛋白的抗体可用于亲和层析、免疫试验以及区别/鉴定奈瑟球菌蛋白。
针对本发明蛋白的多克隆和单克隆抗体可用常规方法制得。通常,首先用蛋白来免疫合适的动物,较佳的是小鼠、大鼠、家兔或山羊。由于可获得的血清体积多,能获得标记的抗家兔和抗山羊抗体,因此对于制备多克隆抗血清来说,家兔和山羊是较佳的。免疫通常这样进行:将蛋白以盐水(较佳的以佐剂如弗氏完全佐剂)混合或乳化,然后肠胃外(通常是皮下或肌内)注射该混合物或乳剂。每次注射50-200微克的剂量就足够了。2-6周后用盐水(较佳的是用弗氏不完全佐剂)配的蛋白质注射一次或多次以强化免疫。另外可以用本领域已知的方法进行体外免疫来产生抗体,从本发明的目的来看,认为其与体内免疫等效。将免疫后的动物血液抽取到玻璃或塑料容器中,25℃培育该血液1小时,然后4℃培育2-18小时,获得多克隆抗血清。离心(例如1000g 10分钟)回收血清。家兔每次取血可获得约20-50毫升。
用Kohler和Milstein的标准方法[Nature(1975)256:495-96]或其改进方法制得单克隆抗体。通常,如上所述对小鼠或大鼠免疫。然而,并非是对动物取血然后抽提血清,而是取出脾脏(以及任选地取出几个大的淋巴结),将其分散成单细胞。如果需要,可将细胞悬液(在除去非特异性粘附的细胞后)加入包被了蛋白质抗原的板或孔中,对脾细胞进行筛选。表达抗原特异性的膜结合免疫球蛋白的B细胞结合到板上,不象悬液其它物质那样被洗去。然后对所得B细胞或所有解离的脾细胞进行诱导,使其与骨髓瘤细胞融合形成杂交瘤,培养在选择性培养基(如次黄嘌呤、氨基蝶呤、胸苷培养基,“HAT”)中。通过有限稀释接种所得杂交瘤,并测定特异性结合免疫抗原(且不结合无关抗原)的抗体的产生。然后,体外(例如在组织培养瓶或中空纤维反应器中)或体内(如小鼠腹水中)培养所选的分泌单克隆抗体的杂交瘤。
如果需要,抗体(无论是多克隆还是单克隆抗体)可用常规技术来标记。合适的标记包括荧光团、发色团、放射活性原子(尤其是32P和125I)、密电子试剂、酶、以及具有特异性结合配偶的配体。酶通常靠其活性来检测。例如,辣根过氧化物酶通常是检测其将3,3′,5,5′-四甲基联苯胺(TMB)转变成蓝色的能力,可用分光光度计定量测定。“特异性结合配偶”指能以高特异性结合配体分子的蛋白质,例如抗原以及对其有特异性的单克隆抗体。其它特异性结合配偶包括生物素和亲和素或链亲和素,IgG和蛋白A,以及本领域已知的许多受体-配体对。应理解,上述内容并非要将各种标记分成不同的类,因为同一标记可在几种不同的模型中起作用。例如,125I可作为放射活性标记,或作为密电子试剂。HRP可作为酶或单抗的抗原。另外,一种物质可以和各种标记组合以获得所需的效果。例如,在实施本发明中,单抗和亲和素也需要标记,因此,可以用生物素标记单抗,并用标记了125I的亲和素检测其存在,或用标记HRP的抗生物素单抗检测其存在。其它替换和可能性对于本领域普通技术人员来说是显而易见的,所以应认作属于本发明范围内的等价物。
药物组合物
药物组合物可包含本发明的多肽、抗体或核酸。该药物组合物将包含治疗有效量的本发明的多肽、抗体或多核苷酸。
本文所用的术语“治疗有效量”指治疗剂治疗、缓解或预防目标疾病或状况的量,或是表现出可检测的治疗或预防效果的量。该效果例如可通过化学标记或抗原水平来检测。治疗效果也包括生理性症状的减轻,例如导致体温降低。对于某一对象的精确有效量取决于该对象的体型和健康状况、病症的性质和程度、以及选择给予的治疗剂和/或治疗剂的组合。因此,预先指定准确的有效量是没用的。然而,对于某给定的症状而言,可以用常规实验来确定该有效量,临床医师是能够判断出来的。
为了本发明的目的,有效的剂量为给予个体约0.01毫克/千克至50毫克/千克或0.05毫克/千克至10毫克/千克的DNA构建物。
药物组合物还可含有药学上可接受的载体。术语“药学上可接受的载体”指用于治疗剂(例如抗体、多肽、基因或其它治疗剂)给药的载体。该术语指这样一些药剂载体:它们本身不诱导产生对接受该组合物的个体有害的抗体,且给药后没有过分的毒性。合适的载体可能是大的、代谢缓慢的大分子,如蛋白质、多糖、聚乳酸(polylactic acid)、聚乙醇酸、氨基酸聚合物、氨基酸共聚物以及无活性的病毒颗粒。这些载体是本领域普通技术人员所熟知的。
本文可用的药学上可接受的盐例如有:无机酸盐,如盐酸盐、氢溴酸盐、磷酸盐、硫酸盐等;以及有机酸盐,如乙酸盐、丙酸盐、丙二酸盐、苯甲酸盐等。在Remington′s Pharmaceutical Sciences(Mack Pub.Co.,N.J.1991)中可找到关于药学上可接受的赋形剂的充分讨论。
治疗性组合物中药学上可接受的载体可含有液体,如水、盐水、甘油和乙醇。另外,这些载体中还可能存在辅助性的物质,如润湿剂或乳化剂、pH缓冲物质等。通常,可将治疗性组合物制成可注射剂,例如液体溶液或悬浮液;还可制成在注射前适合配入溶液或悬液中、液体载体的固体形式。脂质体也包括在药学上可接受的载体的定义中。
给药方法
一旦配成本发明的组合物,可将其直接给予对象。待治疗的对象可以是动物;尤其可以治疗人对象。
直接输送该组合物通常可通过皮下、腹膜内、静脉内或肌内注射或输送至组织间隙来实现。组合物也可输送至病灶区。其它给药方式包括口服和肺给药、栓剂和透皮或经皮肤施用(参见例如WO98/20734)、用针、基因枪或手持无针注射器(hypospray)。治疗剂量方案可以是单剂方案或多剂方案。
疫苗
疫苗包含免疫性抗原、免疫原、多肽、蛋白或核酸,通常与“药学上可接受的载体”组合,这些载体包括本身不诱导产生对接受该组合物的个体有害的抗体的任何载体。合适的载体通常是大的、代谢缓慢的大分子,如蛋白质、多糖、聚乳酸、聚乙醇酸、氨基酸聚合物、氨基酸共聚物、脂质凝集物(如油滴或脂质体)以及无活性的病毒颗粒。这些载体是本领域普通技术人员所熟知的。另外,这些载体可起免疫刺激剂(“佐剂”)作用。另外,抗原或免疫原可以和细菌类毒素(如白喉、破伤风、霍乱、幽门螺杆菌等病原体的类毒素)偶联。
增强组合物效果的较佳的佐剂包括但不局限于:(1)铝盐(alum),如氢氧化铝、磷酸铝、硫酸铝等;(2)水包油型乳剂配方(有或没有其它特异性的免疫刺激剂,如胞壁酰肽(见下文)或细菌细胞壁成分),例如,(a)MF59TM(WO 90/14837;第10章“疫苗设计:亚基和佐剂方法”,Powell和Newman编,Plenum Press,1995),其含有5%鲨烯、0.5%吐温 80和0.5%Span 85(任选地含有不同量的MTP-PE(见下文),虽然并不需要),用微量流化器(如110Y型微量流化器(Microfluidics,Newton,MA))制成亚微米级颗粒;(b)SAF,其含有10%鲨烯、0.4%吐温80、5%普卢兰尼克(pluronic)嵌段聚合物L121以及thr-MDP(见下文),微量流化成亚微米级乳剂或涡流振荡产生粒径较大的乳剂,和(c)RibiTM佐剂系统(RAS)(Ribi Immunoehem,Hamilton,MT),其含有2%鲨烯、0.2%吐温80以及选自单磷酰脂A(MPL)、二霉菌酸海藻糖酯(TDM)、和细胞壁骨架(CWS)的一种或多种细菌细胞壁组分,较佳的是MPL+CWS(DetoxTM);(3)皂素佐剂,例如可采用StimulonTM(Cambridge Bioscience,Worcester,MA)或从其产生的颗粒,如ISCOM(免疫刺激性复合物);(4)弗氏完全佐剂(CFA)和弗氏不完全佐剂(IFA);(5)细胞因子,如白介素(如IL-1、IL-2、IL-4、IL-5、IL-6、IL-7、IL-12等)、干扰素(如γ干扰素)、巨噬细胞集落刺激因子(M-CFS)、肿瘤坏死因子(TNF)等;以及(6)作为免疫刺激剂来增强组合物效果的其它物质。Alum和MF59TM是较佳的。
如上所述,胞壁酰肽包括但不局限于,N-乙酰-胞壁酰-L-苏氨酰-D-异谷氨酰胺(thr-MDP)、N-乙酰-去甲基胞壁酰-L-丙氨酰-D-异谷氨酰胺(nor-MDP)、N-乙酰胞壁酰-L-丙氨酰-D-异谷氨酰氨酰基-L-丙氨酸-2-(1′-2′-二棕榈酰-sn-甘油-3-羟基磷酰氧)-乙胺(MTP-PE)等。
免疫原性组合物(如用于免疫的抗原/免疫原/多肽/蛋白/核酸,药学上可接受的载体以及佐剂),通常含有稀释剂,如水,盐水,甘油,乙醇等。另外,辅助性物质,如润湿剂或乳化剂、pH缓冲物质等可存在于这类运载体中。
通常,可将免疫原性组合物制成可注射剂,例如液体溶液或悬液;还可制成在注射前适合配入溶液或悬液、液体赋形剂的固体形式。该制剂还可乳化或包封在脂质体中,在上述药学上可接受的载体下增强佐剂效果。
用作疫苗的免疫原性组合物,包含免疫学有效量的抗原性或免疫原性多肽以及上述其它所需的组分。“免疫学有效量”指以单剂或连续剂一部分给予个体的量对治疗或预防是有效的。该用量根据所治疗个体的健康状况和生理状况、所治疗个体的类别(如非人灵长类、灵长类等)、个体免疫系统合成抗体的能力、所需的保护程度、疫苗的配制、治疗医师对医疗状况的评估、及其它的相关因素而定。预计该用量将在相对较宽的范围内,可通过常规实验来确定。
常规方法是从肠胃外途径通过注射给予免疫原性组合物,例如皮下、肌内或透皮给药(例如WO98/20734)。适合其它给药方式的其它配方包括口服和肺制剂、栓剂和透皮施药。治疗剂量可以是单剂方案或多剂方案。疫苗可以结合其它免疫调节剂一起给予。
作为以蛋白质为基础的疫苗的一种替代方案是,可以采用DNA疫苗接种[例如,Robinson和Torres(1997)Seminars in Immunology 9:271-283;Donnelly等人(1997)Annu Rev.Immunol 15:617-648;见下文]。
多核苷酸和多肽药物组合物
除了上述的药学上可接受的载体和盐外,多核苷酸和多肽组合物中还可采用下列附加试剂。
A.多肽
一个例子是多肽,其包括但不局限于:脱唾液酸血清类粘蛋白(ASOR);运铁蛋白;脱唾液酸糖蛋白;抗体;抗体片段;铁蛋白;自介素;干扰素;粒细胞-巨噬细胞集落刺激因子(GM-CSF);粒细胞集落刺激因子(G-CSF)、巨噬细胞集落刺激因子(M-CSF)、干细胞因子和促红细胞生成素。还可使用病毒抗原,如包膜蛋白。另外,可用来自其它侵袭性生物的蛋白,例如疟原虫恶性疟疾的环孢子蛋白的17个氨基酸的肽(称为RII)。
B.激素,维生素等
其它可包括的种类例如是:激素、类固醇、雄激素、雌激素、甲状腺激素或维生素、叶酸。
C.聚亚烷基、多糖等
另外,聚(亚烷基)二醇可以和所需的多核苷酸或多肽组合在一起。在一个较佳的实施方案中,聚(亚烷基)二醇是聚乙二醇。另外,可以加入单糖、二糖或多糖。在此方面的一个较佳实施方案中,多糖是葡聚糖或DEAE-葡聚糖。另外有脱乙酰壳多糖和聚交酯-聚乙醇酸内酯共聚物。
D.脂质和脂质体
所需的多核苷酸或多肽还可在输送给对象或对象衍生的细胞之前包裹在脂质中或包裹在脂质体中。
脂质包裹通常用能稳定结合或捕获并保留核酸的脂质体来实现。浓缩的多核苷酸与脂质制剂之比可以不同,但是通常在约1∶1(毫克DNA∶微摩尔脂质)之间,或脂质更多。关于脂质体作为输送核酸的载体的综述参见Hug和Sleight(1991)Biochim.Biophys.Acta.1097:1-17;Straubinger(1983)Meth.Enzymol.101:512-527。
用于本发明的脂质体制剂包括阳离子(带正电荷)、阴离子(带负电荷)和中性制剂。阳离子脂质体已经显示出能以有功能的形式介导质粒DNA的胞内输送(Felgner(1987)Proc.Natl.Acad.Sci.USA 84:7413-7416);mRNA(Malone(1989)Proc.Natl.Acad.Sci.USA 86:6077-6081);和纯化的转录因子的胞内输送(Debs(1990)J.Biol.Chem.265:10189-10192)。
阳离子脂质体很容易购得。例如,N[1-2,3-二油烯基氧)丙基]-N,N,N-三乙铵(DOTMA)脂质体可以以Lipofectin的商标从GIBCO BRL,Grand Island,NY购得。(另见Felgner,同上)。其它商品脂质体包括transfectace(DDAB/DOPE)和DOTAP/DOPE(Boerhinger)。其它阳离子脂质体可用本领域熟知的方法从易购得的材料制得。例如参见,Szoka(1978)PNAS USA 75:4194-4198;WO90/11092关于DOTAP(1,2-二(油酰基氧)-3-(三甲基铵溶)丙烷)脂质体合成的描述。
同样,阴离子和中性脂质体也是容易获得的,例如购自Avanti PolarLipids(birmingham,AL),或容易用易购得的材料制得。这种材料包括磷脂酰胆碱、胆固醇、磷脂酰乙醇胺、二油酰基磷脂酰胆碱(DOPC)、二油酰基磷脂酰甘油(DOPG)、二油酰基磷脂酰乙醇胺(DOPE)。这些材料还能以合适比例与DOTMA和DOTAP原料混合。用这些材料制备脂质体的方法是本领域熟知的。
脂质体可包含多层脂质体(MLV),小的单层脂质体(SUV)、或大的单层脂质体(LUV)。各种脂质体-核酸复合物可用本领域已知的方法制得。例如参见Straubinger(1983)Meth.Immunol.101:512-527;Szoka(1978)Proc.Natl.Acad.Sci.USA 75:4194-4198;Papahadjopoulos(1975)Biochim.Biophys.Acta 394:483;Wilson(1979)Cell 17:77);Deamer和Bangham(1976)Biochim.Biophys.Acta443:629;Ostro(1977)Biochem.Biophys.Res.Commun.76:836;Fraley(1979)Proc.Natl.Acad.Sci.USA 76:3348);Enoch和Strittmatter(1979)Proc.Natl.Acad.Sci.USA 76:145;Fraley(1980)J.Biol.Chem.(1980)255:10431;Szoka和Papahadjopoulos(1978)Proc.Natl.Acad.Sci.USA 75:145;以及Schaefer-Ridder(1982)Science 215:166。
E.脂蛋白
另外,脂蛋白也可加入待输送的多核苷酸或多肽中。采用的脂蛋白的例子包括:乳糜微粒、HDL、IDL、LDL和VLDL。还可采用这些蛋白的突变体、片段或融合蛋白。另外,可采用天然存在的脂蛋白的修饰物,例如乙酰化的LDL。这些脂蛋白能使多核苷酸的输送指向表达脂蛋白受体的细胞。较佳的,如果待输送的多核苷酸中加入了脂蛋白,则组合物中不加入其它寻靶的配体。
天然存在的脂蛋白包含脂质和蛋白部分。蛋白部分称为脱辅基蛋白。目前,已经分离并鉴定出了脱辅基蛋白A、B、C、D和E。其中至少有两个含有几种蛋白,用罗马数字AI、AII、AIV;CI、CII、CIII命名。
脂蛋白可包含多个脱辅基蛋白。例如,天然存在的乳糜微粒包含A、B、C和E,随着时间的推移,这些脂蛋白失去A,得到C和E脱辅基蛋白。VLDL包含A、B、C、和E脱辅基蛋白,LDL包含脱辅基蛋白B;HDL包含脱辅基蛋白A、C和E。
这些脱辅基蛋白的氨基酸是已知的,并且在下列文献中有所描述:Breslow(1985)Annu Rev.Biochem 54:699;Law(1986)Adv.Exp Med.Biol.151:162;Chen(1986)J Biol Chem 261:12918;Kane(1980)Proc Natl Acad Sci USA77:2465;and Utermann(1984)Hum Genet 65:232。
脂蛋白含有各种脂质,包括甘油三酯、胆固醇(游离的和酯型)以及磷脂。天然存在的脂蛋白中脂质的组成是不同的。例如,乳糜微粒主要含甘油三酯。关于天然存在的脂蛋白的脂质含量更详细的描述可在例如Meth.Enzymol.128(1986)中找到。选择脂质的组成,以使脱辅基蛋白的构型有利于受体结合活性。还可选择脂质的组成,以促进与多核苷酸结合分子中的疏水性相互作用和结合。
天然存在的脂蛋白可以用诸如超离心方法从血清中分离出来。这些方法在Meth.Enzymol.(同上);Pitas(1980)J.BioChem.255:5454-5460以及Mahey(1979)J Clin.Invest 64:743-750中有所描述。脂蛋白还可在体外产生,或通过在所需宿主细胞中表达脱辅基蛋白基因的重组方法产生。例如参见Atkinson(1986)Annu Rev Biophys Chem 15:403和Radding(1958)Biochim Biophys Acta 30:443。脂蛋白也可购自商业供应商,如Biomedical Techniologies,Inc.,Stoughton,Massachusetts,USA。关于脂蛋白的进一步描述可在Zuckermann等人的WO98/06437中找到。
F.聚阳离子试剂
聚阳离子试剂可以与或不与脂蛋白一起包括在含所需待输送多核苷酸/多肽的组合物中。
聚阳离子试剂通常在生理性相关的pH下表现出净的正电荷,并能中和核酸的电荷,而有助于输送至所需位置。这些试剂具有体外、活体外和体内的用途。聚阳离子试剂可用来将核酸通过肌内或皮下等输送至活的对象。
下面是用作聚阳离子试剂的多肽例子:聚赖氨酸、聚精氨酸、聚鸟氨酸和鱼精蛋白。其它例子包括组蛋白、鱼精蛋白、人血清白蛋白、DNA结合蛋白、非组蛋白染色体蛋白、DNA病毒的外壳蛋白,如(X174,转录因子还含有结合DNA的结构域,因此可用作核酸凝聚剂。简言之,转录因子如C/CEBP、c-jun、c-fos、AP-1、AP-2、AP-3、CPF、Prot-1、Sp-1、Oct-1、Oct-2、CREP、和TFIID含有结合DNA序列的基本结构域。
聚阳离子有机试剂包括:精胺、亚精胺和腐胺。
从上面的清单可以推出聚阳离子试剂的尺寸和物理性能,以构建其它多肽聚阳离子试剂或产生合成的聚阳离子试剂。
有用的合成聚阳离子试剂例如包括,DEAE-葡聚糖、Polybrene。LipofectinTM和lipofectAMINETM是与多核苷酸/多肽组合时形成聚阳离子复合物的单体。
核酸杂交
“杂交”指两个核酸序列相互之间通过氢键而结合。通常,一个序列固定于固体载体,另一个将游离于溶液内。然后,在有利于形成氢键的条件下使两个序列相互接触。影响这种结合的因素包括:溶剂的类型和体积;反应温度;杂交时间;搅拌;封闭液相序列与固体载体非特异性结合的试剂(Denhardt′s试剂或BLOTTO);各序列的浓度;是否使用化合物来增加序列结合的速度(硫酸葡聚糖或聚乙二醇);以及杂交后洗涤条件的严谨程度。见Sambrook等人[同上]第2卷,第9章,9.47至9.57页。
“严谨性”指有利于非常相似的序列结合而不利于不同序列结合的杂交反应条件。例如,应选择温度和盐浓度的组合,使温度比所研究的杂交的Tm计算值低大约120至200℃。温度和盐浓度常可通过初步实验中凭经验来确定,在初步实验中,固定在滤膜上的基因组DNA样品与感兴趣的序列杂交,然后在不同的严谨度条件下洗涤。见Sambrook等人第9.50页。
在进行例如Southern印迹时,要考虑的参数是(1)待印迹的DNA的复杂性以及(2)探针与受检测序列之间的同源性。对于高度复杂的真核基因组中的单拷贝基因,待研究片段的总量可以在10的一个数量级范围内变化,质粒为0.1至1微克,或将噬菌体消化至10-9至10-8克。对于复杂性较低的多核苷酸,可以采用实际上更短的印迹、杂交以及接触时间,更少量的起始多核苷酸,以及比活更低的探针。例如,从1微克酵母DNA开始,用仅仅1小时的接触时间,印迹2小时,然后和108cpm/μg的探针杂交4-8小时,就可以检测单拷贝酵母基因。对于单拷贝哺乳动物基因而言,一种保守的方法是从10微克DNA开始,印迹过夜,在10%硫酸葡聚糖存在下用108cpm/μg以上的探针杂交过夜,导致接触时间约为24小时。
有几个因素可能会影响探针与感兴趣片段之间的DNA-DNA杂交物的解链温度(Tm),因而影响杂交和洗涤的合适条件。在许多情况下,探针并非与待测片段100%同源。其它常常遇到的变量包括杂交序列的长度和G+C总含量,以及杂交缓冲液的离子强度和甲酰胺含量。所有这些因素的作用可近似表示成一个方程式:
Tm=81+16.6(log10Ci)+0.4[%(G+C)]-0.6(%甲酰胺)-600/n-1.5(%错配)
其中Ci是盐浓度(单价离子),n是杂交物碱基对的长度(对Meinkoth和Wahl(1984)Anal.Biochem.138:267-284的方法稍作了修改)。
在设计杂交实验时,影响核酸杂交的一些因素可以方便地予以改变。杂交和洗涤时的温度以及洗涤时的盐浓度的调节最为简单。随着杂交温度(即严谨度)的升高,不同源的链之间发生杂交的可能性变得更少,结果背景值降低。如果放射性标记的探针并非与固定的片段完全同源(这在基因家族和种间杂交实验中是常见的),则必须降低杂交温度,而背景值将会增加。洗涤温度以类似的方式影响杂交带的强度和背景值的程度。洗涤的严谨性也随盐浓度的降低而升高。
通常,在50%甲酰胺存在下的方便的杂交温度是:对于靶片段同源性达95%至100%的探针而言,是42℃;对于同源性为90%至95%的探针,为37℃;对于同源性为85%和90%的探针,为32℃。对于较低的同源性,应用上述方程式应相应地降低甲酰胺含量和调节温度。如果探针和靶片段之间的同源性是未知的,则最简单的方法是从非严谨的杂交和洗涤条件开始。如果在放射自显影后发现了非特异性的条带或高背景值,则可在高严谨性下洗涤滤膜,并重新曝光。如果曝光所需时间使得该方法不切实际,则应平行测试几种杂交和/或洗涤严谨性。
本发明实施方式
脑膜炎球菌80-85kDa蛋白质的鉴定
已发现从脑膜炎奈瑟球菌血清群B制备的多种外膜小泡制剂含有约80-85kDa的成分。用SDS-PAGE凝胶纯化该蛋白质并进行N-端测序(SEQ ID 1)。
制备的抗SDS-PAGE纯化蛋白的抗体与50种以上的不同血清群和血清型的脑膜炎奈瑟球菌菌株中的当量蛋白质相互反应。还观察到与淋病奈瑟球菌、多糖奈瑟球菌(N.polysaccharia)和乳糖奈瑟球菌(N.lactamica)的交叉反应。接受过疫苗的患者的血清也与该蛋白质反应。
从血清群B脑膜炎奈瑟球菌克隆了完整的基因(SEQ ID 2),并推断其编码的蛋白质(SEQ ID 3)。通过与上述N-端测序相比较,推断出信号肽(SEQ ID 4)和成熟序列(SEQ ID 5)。
脑膜炎奈瑟球菌血清群A和淋病奈瑟球菌中相应基因的鉴定
在血清群B脑膜炎奈瑟球菌序列的基础上,克隆和测序了脑膜炎奈瑟球菌血清群A和淋病奈瑟球菌的相应序列(称为‘ORF21’)。
SEQ ID 6列出了血清群A脑膜炎奈瑟球菌的完整基因,SEQ ID 7列出了其所编码的蛋白质。SEQ ID 8和9是信号肽和成熟序列。
SEQ ID 10列出了淋病奈瑟球菌的完整序列,SEQ ID 11列出了其编码的蛋白质。SEQ ID 12和13为信号肽和成熟序列。
序列的比较
将这些蛋白质序列进行比较,发现它们是高度同源的。
脑膜炎奈瑟球菌血清群B序列和淋病奈瑟球菌序列显示在797aa重叠的片段中有95.4%相同。
10 20 30 40 50 60
orf21.pep MKLKQIASALMMLGISPLALADFTIQDIRVEGLQRTEPSTVFNYLPVKVGDTYNDTHGSA
|||||||||||||||||||:||||||||||||||||||||||||||||||||||||||||
orf21ng.pep MKLKQIASALMMLGISPLAFADFTIQDIRVEGLQRTEPSTVFNYLPVKVGDTYNDTHGSA
10 20 30 40 50 60
70 80 90 100 110 120
orf21.pep IIKSLYATGFFDDVRVETADGQLLLTVIERPTIGSLNITGAKMLQNDAIKKNLESFGLAQ
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21ng.pep IIKSLYATGFFDDVRVETADGQLLLTVIERPTIGSLNITGAKMLQNDAIKKNLESFGLAQ
70 80 90 100 110 120
130 140 150 160 170 180
orf21.pep SQYFNQATLNQAVAGLKEEYLGRGKLNIQITPKVTKLARNRVDIDITIDEGKSAKITDIE
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21ng.pep SQYFNQATLNQAVAGLKEEYLGRGKLNIQITPKVTKLARNRVDIDITIDEGKSAKITDIE
130 140 150 160 170 180
190 200 210 220 230 240
orf21.pep FEGNQVYSDRKLMRQMSLTEGGIWTWLTRSNQFNEQKFAQDMEKVTDFYQNNGYFDFRIL
||||||||||||||||||||||||||||||::|::|||||||||||||||||||||||||
orf21ng.pep FEGNQVYSDRKLMRQMSLTEGGIWTWLTRSDRFDRQKFAQDMEKVTDFYQNNGYFDFRIL
190 200 210 220 230 240
250 260 270 280 290 300
orf21.pep DTDIQTNEDKTKQTIKITVHEGGRFRWGKVSIEGDTNEVPKAELEKLLTMKPGKWYERQQ
|||||||||||:||||||||||||||||||||||||||||||||||||||||||||||||
orf21ng.pep DTDIQTNEDKTRQTIKITVHEGGRFRWGKVSIEGDTNEVPKAELEKLLTMKPGKWYERQQ
250 260 270 280 290 300
310 320 330 340 350 360
orf21.pep MTAVLGEIQNRMGSAGYAYSEISVQPLPNAETKTVDFVLHIEPGRKIYVNEIHITGNNKT
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21ng.pep MTAVLGEIQNRMGSAGYAYSEISVQPLPNAGTKTVDFVLHIEPGRKIYVNEIHITGNNKT
310 320 330 340 350 360
370 380 390 400 410 420
orf21.pep RDEVVRRELRQHESAPYDTSKLQRSKERVELLGYFDNVQFDAVPLAGTPDKVDLNMSLTE
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21ng.pep RDEVVRRELRQMESAPYDTSKLQRSKERVELLGYFDNVQFDAVPLAGTPDKVDLNMSLTE
370 380 390 400 410 420
430 440 450 460 470 480
orf21.pep RSTGSLDLSAGWVQDTGLVMSAGVSQDNLFGTGKSAALRASRSKTTLNGSLSFTDPYFTA
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21ng.pep RSTGSLDLSAGWVQDTGLVMSAGVSQDNLFGTGKSAALRASRSKTTLNGSLSFTDPYFTA
430 440 450 460 470 480
490 500 510 520 530 540
orf21.pep DGVSLGYDVYGKAFDPRKASTSIKQYKTTTAGAGIRMSVPVTEYDRVNFGLVAEHLTVNT
||||||||:|||||||||||||:|||||||||:|:||::||||||||||||:||||||||
orf21ng.pep DGVSLGYDIYGKAFDPRKASTSVKQYKTTTAGGGVRMGIPVTEYDRVNFGLAAEHLTVNT
490 500 510 520 530 540
550 560 570 580 590 600
orf21.pep YNKAPKHYADFIKKYGKTDGTDGSFKGWLYKGTVGWGRNKTDSALWPTRGYLTGVNAEIA
||||||:|||||:|||||||:|||||| |||||||||||||||| |||||||||||||||
orf21ng.pep YNKAPKRYADFIRKYGKTDGADGSFKGLLYKGTVGWGRNKTDSASWPTRGYLTGVNAEIA
550 560 570 580 590 600
610 620 630 640 650 660
orf21.pep LPGSKLQYYSATHNQTWFFPLSKTFTLKMGGEVGIAGGYGRTKEIPFFENFYGGGLGSVR
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21ng.pep LPGSKLQYYSATHNQTWFFPLSKTFTLMLGGEVGIAGGYGRTKEIPFFENFYGGGLGSVR
610 620 630 640 650 660
670 680 690 700 710 720
orf21.pep GYESGTLGPKVYDEYGEKISYGGNKKANVSAELLFPMPGAKDARTVRLSLFADAGSVWDG
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21ng.pep GYESGTLGPKVYDEYGEKISYGGNKKANVSAELLFPMPGAKDARTVRLSLFADAGSVWDG
670 680 690 700 710 720
730 740 750 760 770 780
orf21.pep KTYDDNSSSATGGRVQNIYGAGNTHKSTFTNELRYSAGGAVTWLSPLGPMKFSYAYPLKK
:|| ::| :| :::|: |:||||||||||||||||||||||||||||||||||||
orf21ng.pep RTY----TAAENGNNKSVYSE-NAHKSTFTNELRYSAGGAVTWLSPLGPMKFSYAYPLKK
730 740 750 760 770
790
orf21.pep KPEDEIQRFQFQLGTTF
|||||||||||||||||
orf21ng.pep KPEDEIQRFQFQLGTTFX
780 790
脑膜炎奈瑟球菌血清群A和B序列显示在797aa重叠的片段中有99.9%相同。
10 20 30 40 50 60
orf21.pep MKLKQIASALMMLGISPLALADFTIQDIRVEGLQRTEPSTVFNYLPVKVGDTYNDTHGSA
|||||||||||:||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep MKLKQIASALMVLGISPLALADFTIQDIRVEGLQRTEPSTVFNYLPVKVGDTYNDTHGSA
10 20 30 40 50 60
70 80 90 100 110 120
orf21.pep IIKSLYATGFFDDVRVETADGQLLLTVIERPTIGSLNITGAKMLQNDAIKKNLESFGLAQ
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep IIKSLYATGFFDDVRVETADGQLLLTVIERPTIGSLNITGAKMLQNDAIKKNLESFGLAQ
70 80 90 100 110 120
130 140 150 160 170 180
orf21.pep SQYFNQATLNQAVAGLKEEYLGRGKLNIQITPKVTKLARNRVDIDITIDEGKSAKITDIE
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep SQYFNQATLNQAVAGLKEEYLGRGKLNIQITPKVTKLARNRVDIDITIDEGKSAKITDIE
130 140 150 160 170 180
190 200 210 220 230 240
orf21.pep FEGNQVYSDRKLMRQMSLTEGGIWTWLTRSNQFNEQKFAQDMEKVTDFYQNNGYFDFRIL
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep FEGNQVYSDRKLMRQMSLTEGGIWTWLTRSNQFNEQKFAQDMEKVTDFYQNNGYFDFRIL
190 200 210 220 230 240
250 260 270 280 290 300
orf21.pep DTDIQTNEDKTKQTIKITVHEGGRFRWGKVSIFGDTNEVPKAELEKLLTMKPGKWYERQQ
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep DTDIQTNEDKTKQTIKITVHFGGRFRWGKVSIFGDTNEVPKAFLFKLLTMKPGKWYERQQ
250 260 270 280 290 300
310 320 330 340 350 360
orf21.pep MTAVLGEIQNRMGSAGYAYSEISVQPLPNAETKTVDFVLHIEPGRKIYVNEIHITGNNKT
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep MTAVLGEIQNRMGSAGYAYSEISVQPLPNAETKTVDFVLHIEPGRKIYVNEIHITGNNKT
310 320 330 340 350 360
370 380 390 400 410 420
orf21.pep RDEVVRRELRQMESAPYDTSKLQRSKERVELLGYFDNVQFDAVPLAGTPDKVDLNMSLTE
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep RDEVVRRELRQMESAPYDTSKLQRSKERVELLGYFDNVQFDAVPLAGTPDKVDLNMSLTE
370 380 390 400 410 420
430 440 450 460 470 480
orf21.pep RSTGSLDLSAGWVQDTGLVMSAGVSQDNLFGTGKSAALRASRSKTTLNGSLSFTDPYFTA
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf2 1a.pep RSTGSLDLSAGWVQDTGLVMSAGVSQDNLFGTGKSAALRASRSKTTLNGSLSFTDPYFTA
430 440 450 460 470 480
490 500 510 520 530 540
orf21.pep DGVSLGYDVYGKAFDPRKASTTSIKQYKTTAGAGIRMSVPVTEYDRVNFGLVAEHLTVNT
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep DGVSLGYDVYGKAFDPRKASTSIKQYKTTTAGAGIRMSVPVTEYDRVNFGLVAEHLTVNT
490 500 510 520 530 540
550 560 570 580 590 600
orf21.pep YNKAPKHYADFIKKYGKTDGTDGSFKGWLYKGTVGWGRNKTDSALWPTRGYLTGVNAEIA
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep YNKAPKHYADFIKKYGKTDGTDGSFKGWLYKGTVGWGRNKTDSALWPTRGYLTGVNAEIA
550 560 570 580 590 600
610 620 630 640 650 660
orf21.pep LPGSKLQYYSATHNQTWFFPLSKTFTLMLGGEVGIAGGYGRTKEIPFFENFYGGGLGSVR
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep LPGSKLQYYSATHNQTWFFPLSKTFTLMLGGEVGIAGGYGRTKEIPFFENFYGGGLGSVR
610 620 630 640 650 660
670 680 690 700 710 720
orf21.pep GYESGTLGPKEYGEYGEKISYGGNKKANVSAELLFPMPGAKDARTVRLSLFADAGSVWDG
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep GYESGTLGPKVYDEYGEKISYGGNKKANVSAELLFPMPGAKDARTVRLSLFADAGSVWDG
670 680 690 700 710 720
730 740 750 760 770 780
orf21.pep KTYDDNSSSATGGRVQNIYGAGNTHKSTFTNELRYSAGGAVTWLSPLGPMKFSYAYPLKK
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
orf21a.pep KTYDDNSSSATGGRVQNIYGAGNTHKSTFTNELRYSAGGAVTWLSPLGPMKFSYAYPLKK
730 740 750 760 770 780
790
orf21.pep KPEDEIQRFQFQLGTTF
|||||||||||||||||
orf21a.pep KPEDEIQRFQFQLGTTFX
790
高度保守表明单种蛋白质可能引发针对多种奈瑟球菌属物种的免疫应答。
克隆、表达和纯化
脑膜炎奈瑟球菌菌株2996和MC58在100GC培养基中生长至指数期,离心收获,并悬浮于5ml缓冲液中(20%w/v蔗糖、50mM Tris-HCl、50mM EDTA,pH8)。在冰上培育10分钟后,添加10ml裂解溶液(50mM NaCl、1%Na-Sarkosyl、50μg/ml蛋白酶K)裂解这些细菌,悬浮液在37℃孵育2小时。进行二次苯酚抽提(平衡到pH8.0),并进行一次CHCl3/异戊醇(24∶1)提取。加入0.3M乙酸钠和2体积乙醇以沉淀DNA,离心收集。用70%(v/v)乙醇冲洗沉淀物1次,将它们再溶解于4.0ml TE缓冲液(10mM Tris-HCl、1mM EDTA、pH8.0)。通过读取OD260测定DNA的浓度。
用如下寡核苷酸,通过PCR扩增不含编码前导肽序列的ORF21:
orf21正向引物<SEQ ID 105>(BamHI-NdeI)
orf21反向引物<SEQ ID 106>(XhoI)
5’引物包括2个限制位点(BamHI-NdeI),3’引物包括XhoI限制位点,以便将扩增的产品(相应于ORF21)直接克隆入两个表达载体:克隆pGEX-KG(用BamHI-XhoI),以获得N-端GST-融合蛋白;和克隆入pET21b+(用NdeI-XhoI),以获得C-端His-融合蛋白。
以下为标准PCR流程:在40μM各寡核苷酸引物、400-800μM dNTP溶液、1x PCR缓冲液(包括1.5mM MgCl2)、2.5单位TaqI DNA聚合酶(用Perkin-ElmerAmpliTaq,Boerhingher Mannheim ExpandTM Long Template)存在时,用200ng2996或MC58菌株的基因组DNA或10ng从重组克隆得到的质粒DNA制备物作为模板。
将全部混合物在95℃预先培育3分钟后,将每份样品进行两步的扩增:用排除引物限制酶拖尾的杂交温度(Tm1)进行前5轮。然后,根据全长寡核苷酸计算的杂交温度(Tm2)进行30轮。在68℃或72℃进行的延伸的时间根据要扩增的Orf的长度各不相同。对Orf1而言,延伸时间从3分钟开始,每轮增加15秒。循环在72℃的10分钟延伸步骤中完成。
扩增的DNA直接加样到1%琼脂糖凝胶上。按制造商说明,用Qiagen GelExtraction Kit从凝胶纯化相应于正确大小条带的DNA片段。
用合适的限制酶消化纯化的相应于扩增的片段的DNA,从而将其克隆入pET-21b+或pET22b+。用QIAquick PCR纯化试剂盒(按制造商说明书)纯化消化的片段,并用H2O或10mM Tris(pH8.5)洗脱。用合适的限制酶消化质粒载体,加样到1.0%琼脂糖凝胶上,并用Qiagen QIAquick Gel Extraction Kit纯化相应于消化的载体的条带。
将预先进行过消化和纯化的相应于各基因的片段连接入pET21b+或pET22b+。将摩尔比为3∶1的片段/载体与T4 DNA连接酶在制造商提供的连接缓冲液中一起使用。
通过在冰上培育连接酶反应溶液和细菌40分钟,在37℃培育3分钟,将重组的质粒转化入感受态大肠杆菌DH5或HB101。然后添加800μl LB肉汤,在37℃培育20分钟。在Eppendorf离心机上以最高速度离心这些细胞,重悬浮于约200μl上清液中,将它们置于LB氨苄青霉素(100mg/ml)琼脂上。
37℃将随机选出的集落在4.0ml LB肉汤+100μg/ml氨苄青霉素上生长过夜,筛选重组克隆。沉淀细胞,并按制造商的说明书用Qiagen QIAprep SpinMiniprep Kit提取质粒DNA。用合适的内切酶消化约1μg各小量制备物,将消化物加样到1-1.5%琼脂糖凝胶上(根据所需插入片段的尺寸),与分子量标记物相平行(1kb DNA Ladder,GIOBCO)。按插入片段的尺寸为依据选出阳性克隆。
将各基因克隆入表达载体后,将重组质粒转化入适合重组蛋白表达的大肠杆菌菌株中。用1μl各构建物转化上述大肠杆菌BL21-DE3。将单个重组集落接种到2ml LB+Amp(100μg/ml)中,在37℃培育过夜,然后以1∶30稀释于100ml烧瓶内的20ml LB+Amp(100μg/ml)中,使OD600为0.1到0.2之间。将该烧瓶在30℃或37℃的回转式水浴振荡器上培育,直到OD600显示已生长到适合表达培育的指数生长期(0.4-0.8OD)。加入0.1mM IPTG诱导蛋白质的表达。在30℃或37℃培育3小时后,测定OD600并检验表达。将1.0ml各份样品在微型离心机上离心,将沉淀重悬浮于PBS中,用SDS-PAGE和考马斯蓝染色分析。
GST融合蛋白被表达,但发现它是不溶的(即不可纯化)。His-融合蛋白被表达成不溶的蛋白质。
对作为His融合蛋白纯化的各克隆而言,划线培育单集落,37℃将它们在LB/Amp(100μg/ml)的琼脂板上培育过夜。将从该板上分离的集落在20mlLB/Amp(100μg/ml)液体培养基上培育,并在37℃振荡生长过夜。将此过夜的培养物以1∶30稀释于1.0升LB/Amp(100μg/ml)液体培养基中,将其在最佳温度(30或37℃)生长,直到OD550达到0.6-0.8。加入IPTG(终浓度为1.0mM)引发重组蛋白的表达,将此培养物再培育3小时。4℃以8000g离心15分钟收获细菌。将细菌沉淀重悬浮于7.5ml缓冲液B(8M尿素、10mM Tirs-HCl、100mM磷酸盐缓冲液,pH8.8)中。用450型Branson超声波仪以40W在冰上超声处理四次(每次30秒)破坏细胞,在4℃以13000×g离心30分钟。将沉淀重悬浮于2.0ml缓冲液C(6M盐酸胍、100mM磷酸盐缓冲液、10mM Tirs-HCl、pH7.5)中,并用Dounce匀浆器处理10次。将匀浆在13000g离心30分钟,保留上清液。将上清液与150μl Ni2+-树脂(预先用缓冲液B平衡过的)混合,在室温平缓搅拌条件下培育30分钟。该树脂是Chelating Sepharose Fast Flow(Pharmacia),按制造商的说明书制备的。将分批的制备物在4℃以700×g离心5分钟,弃去上清液。用10ml缓冲液B冲洗树脂两次(分批)10分钟,重悬浮于1.0ml缓冲液B中,加样到一次性柱上。在室温下,继续用缓冲液B冲洗树脂,直到流出液的OD280达到0.02-0.01。用缓冲液D(8M尿素、10mM Tirs-HCl、100mM磷酸盐缓冲液,pH6.3)进一步冲洗树脂,直到流出液的OD280达到0.02-0.01。加入700μl洗脱缓冲液B(8M尿素、10mM Tirs-HCl、100mM磷酸盐缓冲液,pH4.5)洗脱His-融合蛋白,收集组分直到OD280显示收集了所有的重组蛋白。用SDS-PAGE分析20μl每份的各洗脱组分。用Bradford分析评估蛋白质浓度。
为了使蛋白质复性,在上述得到的变性组分中加入甘油,使终浓度为10%v/v。用渗析缓冲液I(10%v/v甘油、0.5M精氨酸、50mM磷酸盐缓冲液、5.0mM还原的谷胱甘肽、0.5mM氧化的谷胱甘肽、2.0M尿素,pH8.8)将蛋白质稀释至200μg/ml,并用相同的缓冲液在4℃透析12-14小时。然后用缓冲液II(10%v/v甘油、0.5M精氨酸、50mM磷酸盐缓冲液、5.0mM还原的谷胱甘肽、0.5mM氧化的谷胱甘肽,pH8.8)在4℃透析12-14小时。用下式计算蛋白质浓度:
蛋白质(mg/ml)=(1.55×OD280)-(0.76×OD260)
为了对ORF21进行免疫学定性,在第0、21和35天用抗原使Balb/C小鼠免疫,在第49天分析血清。
在如下的ELISA分析中ORF21得到了阳性结果:将包囊化的MenB M7和包囊化的菌株接种于巧克力琼脂平板上,在37℃、5%CO2培育过夜。用无菌dracon药签从该琼脂板上收集细菌菌落,并将它们接种到含有0.25%葡萄糖的Mueller-Hinton肉汤(Difco)中。每30分钟通过测定OD620监测细菌的生长。让细菌继续生长直到OD值达到0.4-0.5。将培养物在4000rpm离心10分钟。弃去上清液,用PBS冲洗这些细菌2次,重悬浮于含有0.025%甲醛的PBS中,在37℃培育1小时,然后在4℃搅拌培育过夜。在96孔Greiner板的各孔中加入100μl细菌细胞,在4℃培育过夜。然后用PBT冲洗缓冲液(0.1%Tween-20的PBS溶液)冲洗这些孔3次。将200μl饱和缓冲液(2.7%聚乙烯吡咯烷酮10的水溶液)加到各孔中,将这些板在37℃培育2小时。用PBT冲洗这些孔3次。在各孔中加入200μl稀释的血清(稀释缓冲液:1%BSA、0.1%Tween-20、0.1%NaN3的PBS溶液),将这些平板在37℃培育2小时。用PBT冲洗这些孔3次。在各孔中加入100μl HRP-偶联的兔抗小鼠(Dako)血清(用稀释缓冲液作1∶2000稀释),将这些平板在37℃培育90分钟。用PBT缓冲液冲洗这些孔3次。在各孔中加入100μl HRP的底物缓冲液(25ml柠檬酸缓冲液pH5、10mg邻-苯二胺(phenildiamine)和10μl H2O2),将这些平板置于室温20分钟。在各孔中加入100μl12.5%H2SO4,随后测定OD490。随意地计算ELISA滴定度,作为OD490值为0.4的、超过免疫前血清的水平的血清的稀释度。当OD490为0.4的血清的稀释比大于1∶400时,将ELISA视为阳性。
为了评估ORF21在细胞内的定位,使用如下FACS分析:将包囊化的MenBM7菌株接种于巧克力琼脂平板上,在37℃、5%CO2培育过夜。用无菌dracon药签从该琼脂板上收集细菌菌落,并将它们接种到4支各装有8ml包括0.25%葡萄糖的Mueller-Hinton肉汤(Difco)的试管中。每30分钟通过测定OD620监测细菌的生长。让细菌继续生长直到OD值达到0.35-0.5。将培养物在4000rpm离心10分钟。弃去上清液,用封阻缓冲液(1%BSA的PBS溶液、0.4%NaN3)重悬浮沉淀,在4000rpm离心5分钟。将细胞重悬浮于封阻缓冲液中,使OD620达到0.05。在Costar96孔板的各孔中加入100μl细菌细胞。将100μl稀释的(1∶100、1∶200、1∶400)血清(用封阻缓冲液稀释)加到各孔中,在4℃培育2小时。将细胞在4000rpm离心5分钟,抽出上清液,在各孔中加入200μl/孔封阻缓冲液冲洗细胞。将100μl R-藻红蛋白(phicoerytrin)偶联的F(ab)2山羊抗小鼠抗体(以1∶100稀释)加到各孔中,将这些平板在4℃培育1小时。在4000rmp离心5分钟,使细胞离心沉降,加入200μl/孔的封阻缓冲液冲洗。抽出上清液,将细胞重悬浮于200μl/孔的PBS,0.25%甲醛中。将样品转移到FACScan管中并读数。FACScan(激光功率15mW)设定的条件如下:FL2开;FSC-H临界点:92;FSC PMT电压:E01;SSC PMT:474;Amp.Gains6.1;FL-2PMT:586;补偿值:0。
与FACS一样,如下进行Western分析来评估细胞内的定位:将来自MenB菌株2996的纯化的蛋白质(500ng/泳道)、外膜小泡(5μg)和全细胞提取物(25μg)加样到12%SDS-聚丙烯酰胺凝胶上,将它们转移到硝化纤维膜上。该转移用转移缓冲液(0.3%Bris碱、1.44%甘氨酸、20%(v/v)甲醇)在4℃、150mA进行2小时。4℃在饱和缓冲液(10%脱脂牛奶、0.1%Triton X100的PBS溶液)中培育过夜,使该膜饱和。用冲洗缓冲液(3%脱脂牛奶、0.1%Triton X100的PBS溶液)冲洗该膜2次,与用以1∶200稀释的小鼠血清,在37℃培育2小时。冲洗该膜2次,与用1∶2000稀释的辣根过氧化物酶标记的抗小鼠Ig的稀释液培育90分钟。用0.1%Triton X100的PBS溶液冲洗该膜2次,用Opti-4CN底物试剂盒(Bio-Rad)显色。加入水终止反应。
如下制备OMV:37℃、5%CO2,在5GC平板上生长脑膜炎奈瑟球菌菌株2996,用接种环收获,并重悬浮于10ml 20mM Tris-HCl pH7.5、2mM EDTA中。在56℃热灭活45分钟,在冰上超声处理5分钟(50%负载循环(duty cycle),50%输出,Branson超声发生器,3mm微型尖头)破坏细菌。在5000g离心10分钟,除去未被破坏的细胞,回收含有全细胞包膜成分的上清液,并在4℃以50000g离心过夜。将含膜的沉淀重悬浮于2%月桂酰肌氨酸钠、20mM Tris-HCl pH7.5、2mM EDTA中,并在室温培育20分钟以溶解内膜。在10000g离心上清液10分钟以除去聚集物,将上清液在50000g继续离心3小时。在PBS中冲洗含有外膜的沉淀物,将其重悬浮于相同的缓冲液中。以BSA为标准,用D.C.Bio-Rad蛋白质分析(改进的Lowry法)测定蛋白质的浓度。
如下制备全细胞提取物:将脑膜炎奈瑟球菌菌株2996在GC平板上生长过夜,用接种环收获,重悬浮于1ml 20mM Tris-HCl。在56℃热灭活30分钟。
ELISA、FACS和Western分析都显示ORF21是表面外露的。
用如下的细菌分析ORF21得到良好的结果:37℃、5%CO2将脑膜炎奈瑟球菌菌株2996在巧克力平板上生长过夜(从冷冻原液开始)。收集菌落,并用7mlMueller-Hinton肉汤(含有0.25%葡萄糖)培育,使OD620达到0.05-0.08。37℃振荡培育此培养物约1.5小时,直到OD620值达到0.23-0.24。用50mM磷酸盐缓冲液(pH7.2,含有10mM MgCl2、10mM CaCl2和0.5%(w/v)BSA)(分析缓冲液)稀释这些细菌,使工作稀释液(working dilution)的浓度为105CFU/ml。终反应混合物的总体积为50μl,其中25μl为顺序两倍稀释的测试血清,12.5μl工作稀释液的细菌,12.5μl幼兔补体(终浓度25%)。对照包括用补体血清培育的细菌、用细菌和在56℃灭活30分钟的补体培育的免疫血清。添加了幼兔补体后,用标题方法立即(时间0)将10μl对照接种Muller-Hinton琼脂平板上。将此96孔板在37℃旋转培育1小时。将7μl各样品点样在Mueller-Hinton琼脂平板上,而10μl对照用标题方法置于平板上(时间1)。37℃培育这些琼脂平板18小时,计算相应于时间0和时间1的菌落。
计算机分析
图1显示了ORF2 1的序列以及计算机分析的数据。
ORF21具有如下AMPHI区域[Gao等人,(1989)J.Immunol.143:3007;Robert等人(1996)AIDS Res Hum Retrovir12:593;Quakyi等人(1992)Scand J Immunolsuppl.11:9]:SEQ ID 14到32。
抗原指数算法确定了如下区域:SEQ ID 33到70。
Hopp & Woods分析表明如下亲水区域:SEQ ID 71到104。
SEQ ID 14-104可用作这些寡肽或较长的多肽的一部分。
图2显示了MenA、MenB和淋球菌的ORF21序列的排列。
疫苗
表达了如上鉴定的三种蛋白质,并将它们用于免疫接种。观察到对这些蛋白质良好的免疫应答。
组合疫苗
此外,将这些蛋白质各与抗其它病原性生物的抗原(如抗血清群C脑膜炎的Chiron多糖疫苗)相组合,用于免疫接种。观察到联合的免疫应答。
可以理解本发明仅以示例的方式进行了描述,在本发明的范围和精神内还可进行许多改变。
序列表<110>启龙股份公司(CHIRON SpA)<110>国家公共卫生研究所(STATENS INSTITUTT FOR FOLKEHELSE)<120>85kDa奈瑟球菌的抗原<130>P023527WO<150>GB-9928197.4<151>1999-11-29<150>GB-0005698.6<151>2000-03-09<160>106<170>SeqWin99,1.02版本<210>1<211>15<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>1Asp Phe Thr Ile Gln Asp Ile Arg Val Glu Gly Leu Gln Arg Thr1 5 10 15<210>2<211>2394<212>DNA<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>2atgaaactga aacagattgc ttccgcactg atgatgttgg gcatatcgcc tttggcactt 60gccgacttca ccatccaaga catccgcgtc gaaggcttgc agcgtaccga gccgagtacc 120gtattcaact acctgcccgt caaagtcggc gacacctaca acgacacaca cggcagtgcc 180atcatcaaaa gcctgtacgc caccggtttc tttgacgacg tacgcgtcga aactgcggac 240gggcagctcc tgctgaccgt tatcgaacgc cccaccatcg gctcgctcaa catcaccggc 300gcaaaaatgc tgcaaaacga cgccattaag aaaaacctcg aatcgttcgg gctggcgcag 360tcgcaatact ttaatcaggc gacactcaat caggcagtcg ccggcctgaa agaagaatac 420ctcgggcgcg gcaaactcaa tatccaaatc acgcccaaag taaccaaact cgcccgcaac 480cgcgtcgaca tcgacatcac gattgacgag ggcaaatccg ccaaaatcac cgacatcgaa 540tttgaaggca accaagtcta ttccgaccgc aaactgatgc ggcaaatgtc cctgaccgaa 600ggcggcattt ggacatggct gacacgaagc aaccaattca acgagcagaa atttgcccaa 660gatatggaaa aagtaaccga cttctaccaa aataacggct acttcgattt ccgtatcctc 720gataccgaca tccaaaccaa cgaagacaaa accaagcaga ccatcaaaat caccgtccac 780gaaggcggac gtttccgttg gggcaaagtc tccatcgaag gcgacaccaa cgaagtcccc 840aaagccgaac tggaaaaact gctgaccatg aagcccggca aatggtacga acgccagcag 900atgaccgccg ttttgggtga gattcagaac cgcatgggct cggcaggcta cgcatacagc 960gaaatcagcg tacagccgct gccgaacgct gaaaccaaaa ccgtcgattt cgtcctgcac 1020atcgaaccgg gccggaaaat ctacgtcaac gaaatacaca tcaccggcaa caacaaaacc 1080cgcgacgaag tcgtccgccg tgaattacgc caaatggaat ccgcacctta cgacacctcc 1140aagctgcaac gttccaaaga gcgcgtcgag cttttgggct acttcgacaa tgtccagttt 1200gatgctgtcc cgcttgccgg cacgcccgac aaagtcgatt tgaacatgag tctgaccgaa 1260cgttccaccg gttccctgga tttgagcgcg ggttgggttc aagataccgg gttggtcatg 1320tccgcaggcg tttcccaaga caacctgttc ggtacgggca agtcggccgc actgcgcgcc 1380tccaggagca aaaccacgct taacggctcg ctgtcgttta ctgacccgta cttcacggca 1440gacggggtca gcctgggcta cgatgtttac ggaaaagcct tcgacccgcg caaagcatcg 1500accagcatca aacaatataa aaccaccacg gcaggcgcag gcatccgcat gagcgtgcct 1560gttaccgaat acgaccgcgt gaatttcggt ttggtggcag aacacctgac cgtcaacacc 1620tacaacaaag cgcccaaaca ctatgccgac tttatcaaga aatacggcaa aaccgacggc 1680acagacggca gcttcaaagg ctggctgtac aaaggtaccg tcggctgggg gcgcaacaaa 1740accgacagcg cgttatggcc gacgcgcggc tacctgacgg gcgtgaacgc cgaaatcgcc 1800ctgcctggca gcaaactgca atactactcc gccacccaca accaaacctg gttcttcccc 1860ctgagcaaaa ccttcacgct gatgctcggc ggcgaagtcg gcattgcggg cggctacggc 1920agaaccaaag aaatcccctt ctttgaaaac ttctacggcg gcggcctggg ttcggtgcgc 1980ggatacgaaa gcggcacgct cggtccgaaa gtctatgacg aatacggcga aaaaatcagc 2040tacggcggca acaaaaaagc caacgtctcc gccgagctgc tcttcccgat gcccggcgcg 2100aaagacgcgc gcaccgtccg cctgagcctg tttgccgacg caggcagcgt gtgggacggc 2160aaaacctacg acgacaacag cagttccgcg accggcggca gggttcaaaa catttacggc 2220gccggcaata cccataaatc cacctttacc aacgaattgc gctattccgc cggcggcgcg 2280gttacctggc tctcgccttt aggcccgatg aaattcagct acgcctaccc gctgaagaaa 2340aaaccggaag acgaaatcca acgcttccaa ttccaactcg gcacgacgtt ctaa 2394<210>3<211>797<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>3Met Lys Leu Lys Gln Ile Ala Ser Ala Leu Met Met Leu Gly Ile Ser1 5 10 15Pro Leu Ala Leu Ala Asp Phe Thr Ile Gln Asp Ile Arg Val Glu Gly
20 25 30Leu Gln Arg Thr Glu Pro Ser Thr Val Phe Asn Tyr Leu Pro Val Lys
35 40 45Val Gly Asp Thr Tyr Asn Asp Thr His Gly Ser Ala Ile Ile Lys Ser
50 55 60Leu Tyr Ala Thr Gly Phe Phe Asp Asp Val Arg Val Glu Thr Ala Asp65 70 75 80Gly Gln Leu Leu Leu Thr Val Ile Glu Arg Pro Thr Ile Gly Ser Leu
85 90 95Asn Ile Thr Gly Ala Lys Met Leu Gln Asn Asp Ala Ile Lys Lys Asn
100 105 110Leu Glu Ser Phe Gly Leu Ala Gln Ser Gln Tyr Phe Asn Gln Ala Thr
115 120 125Leu Asn Gln Ala Val Ala Gly Leu Lys Glu Glu Tyr Leu Gly Arg Gly
130 135 140Lys Leu Asn Ile Gln Ile Thr Pro Lys Val Thr Lys Leu Ala Arg Asn145 150 155 160Arg Val Asp Ile Asp Ile Thr Ile Asp Glu Gly Lys Ser Ala Lys Ile
165 170 175Thr Asp Ile Glu Phe Glu Gly Asn Gln Val Tyr Ser Asp Arg Lys Leu
180 185 190Met Arg Gln Met Ser Leu Thr Glu Gly Gly Ile Trp Thr Trp Leu Thr
195 200 205Arg Ser Asn Gln Phe Asn Glu Gln Lys Phe Ala Gln Asp Met Glu Lys
210 215 220Val Thr Asp Phe Tyr Gln Asn Asn Gly Tyr Phe Asp Phe Arg Ile Leu225 230 235 240Asp Thr Asp Ile Gln Thr Asn Glu Asp Lys Thr Lys Gln Thr Ile Lys
245 250 255Ile Thr Val His Glu Gly Gly Arg Phe Arg Trp Gly Lys Val Ser Ile
260 265 270Glu Gly Asp Thr Asn Glu Val Pro Lys Ala Glu Leu Glu Lys Leu Leu
275 280 285Thr Met Lys Pro Gly Lys Trp Tyr Glu Arg Gln Gln Met Thr Ala Val
290 295 300Leu Gly Glu Ile Gln Asn Arg Met Gly Ser Ala Gly Tyr Ala Tyr Ser305 310 315 320Glu Ile Ser Val Gln Pro Leu Pro Asn Ala Glu Thr Lys Thr Val Asp
325 330 335Phe Val Leu His Ile Glu Pro Gly Arg Lys Ile Tyr Val Asn Glu Ile
340 345 350His Ile Thr Gly Asn Asn Lys Thr Arg Asp Glu Val Val Arg Arg Glu
355 360 365Leu Arg Gln Met Glu Ser Ala Pro Tyr Asp Thr Ser Lys Leu Gln Arg
370 375 380Ser Lys Glu Arg Val Glu Leu Leu Gly Tyr Phe Asp Asn Val Gln Phe385 390 395 400Asp Ala Val Pro Leu Ala Gly Thr Pro Asp Lys Val Asp Leu Asn Met
405 410 415Ser Leu Thr Glu Arg Ser Thr Gly Ser Leu Asp Leu Ser Ala Gly Trp
420 425 430Val Gln Asp Thr Gly Leu Val Met Ser Ala Gly Val Ser Gln Asp Asn
435 440 445Leu Phe Gly Thr Gly Lys Ser Ala Ala Leu Arg Ala Ser Arg Ser Lys
450 455 460Thr Thr Leu Asn Gly Ser Leu Ser Phe Thr Asp Pro Tyr Phe Thr Ala465 470 475 480Asp Gly Val Ser Leu Gly Tyr Asp Val Tyr Gly Lys Ala Phe Asp Pro
485 490 495Arg Lys Ala Ser Thr Ser Ile Lys Gln Tyr Lys Thr Thr Thr Ala Gly
500 505 510Ala Gly Ile Arg Met Ser Val Pro Val Thr Glu Tyr Asp Arg Val Asn
515 520 525Phe Gly Leu Val Ala Glu His Leu Thr Val Asn Thr Tyr Asn Lys Ala
530 535 540Pro Lys His Tyr Ala Asp Phe Ile Lys Lys Tyr Gly Lys Thr Asp Gly545 550 555 560Thr Asp Gly Ser Phe Lys Gly Trp Leu Tyr Lys Gly Thr Val Gly Trp
565 570 575Gly Arg Asn Lys Thr Asp Ser Ala Leu Trp Pro Thr Arg Gly Tyr Leu
580 585 590Thr Gly Val Asn Ala Glu Ile Ala Leu Pro Gly Ser Lys Leu Gln Tyr
595 600 605Tyr Ser Ala Thr His Asn Gln Thr Trp Phe Phe Pro Leu Ser Lys Thr
610 615 620Phe Thr Leu Met Leu Gly Gly Glu Val Gly Ile Ala Gly Gly Tyr Gly625 630 635 640Arg Thr Lys Glu Ile Pro Phe Phe Glu Asn Phe Tyr Gly Gly Gly Leu
645 650 655Gly Ser Val Arg Gly Tyr Glu Ser Gly Thr Leu Gly Pro Lys Val Tyr
660 665 670Asp Glu Tyr Gly Glu Lys Ile Ser Tyr Gly Gly Asn Lys Lys Ala Asn
675 680 685Val Ser Ala Glu Leu Leu Phe Pro Met Pro Gly Ala Lys Asp Ala Arg
690 695 700Thr Val Arg Leu Ser Leu Phe Ala Asp Ala Gly Ser Val Trp Asp Gly705 710 715 720Lys Thr Tyr Asp Asp Asn Ser Ser Ser Ala Thr Gly Gly Arg Val Gln
725 730 735Asn Ile Tyr Gly Ala Gly Asn Thr His Lys Ser Thr Phe Thr Asn Glu
740 745 750Leu Arg Tyr Ser Ala Gly Gly Ala Val Thr Trp Leu Ser Pro Leu Gly
755 760 765Pro Met Lys Phe Ser Tyr Ala Tyr Pro Leu Lys Lys Lys Pro Glu Asp
770 775 780Glu Ile Gln Arg Phe Gln Phe Gln Leu Gly Thr Thr Phe785 790 795<210>4<211>21<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>4Met Lys Leu Lys Gln Ile Ala Ser Ala Leu Met MeL Leu Gly Ile Ser1 5 10 15Pro Leu Ala Leu Ala
20<210>5<211>776<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>5Asp Phe Thr Ile Gln Asp Ile Arg Val Glu Gly Leu Gln Arg Thr Glu1 5 10 15Pro Ser Thr Val Phe Asn Tyr Leu Pro Val Lys Val Gly Asp Thr Tyr
20 25 30Asn Asp Thr His Gly Ser Ala Ile Ile Lys Ser Leu Tyr Ala Thr Gly
35 40 45Phe Phe Asp Asp Val Arg Val Glu Thr Ala Asp Gly Gln Leu Leu Leu
50 55 60Thr Val Ile Glu Arg Pro Thr Ile Gly Ser Leu Asn Ile Thr Gly Ala65 70 75 80Lys Met Leu Gln Asn Asp Ala Ile Lys Lys Asn Leu Glu Ser Phe Gly
85 90 95Leu Ala Gln Ser Gln Tyr Phe Asn Gln Ala Thr Leu Asn Gln Ala Val
100 105 110Ala Gly Leu Lys Glu Glu Tyr Leu Gly Arg Gly Lys Leu Asn Ile Gln
115 120 125Ile Thr Pro Lys Val Thr Lys Leu Ala Arg Asn Arg Val Asp Ile Asp
130 135 140Ile Thr Ile Asp Glu Gly Lys Ser Ala Lys Ile Thr Asp Ile Glu Phe145 150 155 160Glu Gly Asn Gln Val Tyr Ser Asp Arg Lys Leu Met Arg Gln Met Ser
165 170 175Leu Thr Glu Gly Gly Ile Trp Thr Trp Leu Thr Arg Ser Asn Gln Phe
180 185 190Asn Glu Gln Lys Phe Ala Gln Asp Met Glu Lys Val Thr Asp Phe Tyr
195 200 205Gln Asn Asn Gly Tyr Phe Asp Phe Arg Ile Leu Asp Thr Asp Ile Gln
210 215 220Thr Asn Glu Asp Lys Thr Lys Gln Thr Ile Lys Ile Thr Val His Glu225 230 235 240Gly Gly Arg Phe Arg Trp Gly Lys Val Ser Ile Glu Gly Asp Thr Asn
245 250 255Glu Val Pro Lys Ala Glu Leu Glu Lys Leu Leu Thr Met Lys Pro Gly
260 265 270Lys Trp Tyr Glu Arg Gln Gln Met Thr Ala Val Leu Gly Glu Ile Gln
275 280 285Asn Arg Met Gly Ser Ala Gly Tyr Ala Tyr Ser Glu Ile Ser Val Gln
290 295 300Pro Leu Pro Asn Ala Glu Thr Lys Thr Val Asp Phe Val Leu His Ile305 310 315 320Glu Pro Gly Arg Lys Ile Tyr Val Asn Glu Ile His Ile Thr Gly Asn
325 330 335Asn Lys Thr Arg Asp Glu Val Val Arg Arg Glu Leu Arg Gln Met Glu
340 345 350Ser Ala Pro Tyr Asp Thr Ser Lys Leu Gln Arg Ser Lys Glu Arg Val
355 360 365Glu Leu Leu Gly Tyr Phe Asp Asn Val Gln Phe Asp Ala Val Pro Leu
370 375 380Ala Gly Thr Pro Asp Lys Val Asp Leu Asn Met Ser Leu Thr Glu Arg385 390 395 400Ser Thr Gly Ser Leu Asp Leu Ser Ala Gly Trp Val Gln Asp Thr Gly
405 410 415Leu Val Met Ser Ala Gly Val Ser Gln Asp Asn Leu Phe Gly Thr Gly
420 425 430Lys Ser Ala Ala Leu Arg Ala Ser Arg Ser Lys Thr Thr Leu Asn Gly
435 440 445Ser Leu Ser Phe Thr Asp Pro Tyr Phe Thr Ala Asp Gly Val Ser Leu
450 455 460Gly Tyr Asp Val Tyr Gly Lys Ala Phe Asp Pro Arg Lys Ala Ser Thr465 470 475 480Ser Ile Lys Gln Tyr Lys Thr Thr Thr Ala Gly Ala Gly Ile Arg Met
485 490 495Ser Val Pro Val Thr Glu Tyr Asp Arg Val Asn Phe Gly Leu Val Ala
500 505 510Glu His Leu Thr Val Asn Thr Tyr Asn Lys Ala Pro Lys His Tyr Ala
515 520 525Asp Phe Ile Lys Lys Tyr Gly Lys Thr Asp Gly Thr Asp Gly Ser Phe
530 535 540Lys Gly Trp Leu Tyr Lys Gly Thr Val Gly Trp Gly Arg Asn Lys Thr545 550 555 560Asp Ser Ala Leu Trp Pro Thr Arg Gly Tyr Leu Thr Gly Val Asn Ala
565 570 575Glu Ile Ala Leu Pro Gly Ser Lys Leu Gln Tyr Tyr Ser Ala Thr His
580 585 590Asn Gln Thr Trp Phe Phe Pro Leu Ser Lys Thr Phe Thr Leu Met Leu
595 600 605Gly Gly Glu Val Gly Ile Ala Gly Gly Tyr Gly Arg Thr Lys Glu Ile
610 615 620Pro Phe Phe Glu Asn Phe Tyr Gly Gly Gly Leu Gly Ser Val Arg Gly625 630 635 640Tyr Glu Ser Gly Thr Leu Gly Pro Lys Val Tyr Asp Glu Tyr Gly Glu
645 650 655Lys Ile Ser Tyr Gly Gly Asn Lys Lys Ala Asn Val Ser Ala Glu Leu
660 665 670Leu Phe Pro Met Pro Gly Ala Lys Asp Ala Arg Thr Val Arg Leu Ser
675 680 685Leu Phe Ala Asp Ala Gly Ser Val Trp Asp Gly Lys Thr Tyr Asp Asp
690 695 700Asn Ser Ser Ser Ala Thr Gly Gly Arg Val Gln Asn Ile Tyr Gly Ala705 710 715 720Gly Asn Thr His Lys Ser Thr Phe Thr Asn Glu Leu Arg Tyr Ser Ala
725 730 735Gly Gly Ala Val Thr Trp Leu Ser Pro Leu Gly Pro Met Lys Phe Ser
740 745 750Tyr Ala Tyr Pro Leu Lys Lys Lys Pro Glu Asp Glu Ile Gln Arg Phe
755 760 765Gln Phe Gln Leu Gly Thr Thr Phe
770 775<210>6<211>2379<212>DNA<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>6atgaaactga aacagattgc ctccgcactg atgatgttgg gcatatcgcc tttggcattt 60gccgacttca ccatccaaga catccgtgtc gaaggcttgc agcgtaccga gccgagcacc 120gtattcaact acctgcccgt caaagtcggc gacacctaca acgacacaca cggcagtgcc 180atcatcaaaa gcctgtacgc caccggtttc tttgacgacg tacgagtcga aactgcggac 240gggcagcttc tgctgaccgt tatcgaacgc cccaccatcg gctcgctcaa catcaccggc 300gccaaaatgc tgcaaaacga cgccatcaag aaaaacctcg aatcgttcgg gctggcgcag 360tcgcaatact ttaatcaggc gacactcaac caggcagtcg ccggcctgaa agaagaatac 420ctcgggcgtg gcaaactcaa tatccaaatc acgcccaaag taaccaaact cgcccgcaac 480cgcgtcgaca tcgacatcac gattgacgag ggcaaatccg ccaaaatcac cgacatcgaa 540tttgaaggca accaagtcta ttccgaccgc aaactgatgc ggcagatgtc gctgaccgaa 600ggcggcattt ggacatggct gacacgaagc gaccggttcg accgccagaa attcgcccaa 660gacatggaaa aagtaaccga cttctaccag aacaacggct acttcgattt ccgtatcctc 720gataccgaca tccaaaccaa cgaagacaaa accaggcaga ccatcaaaat caccgtccac 780gaaggcggac gtttccgctg gggcaaagtg tcgattgaag gcgacaccaa cgaagtcccc 840aaggccgaac tggaaaaact gctgaccatg aagcccggca aatggtacga acgccagcag 900atgaccgccg ttttgggtga gattcagaac cgcatgggct cggcaggcta cgcatacagc 960gaaatcagcg tacagccgct gccgaacgcc ggaaccaaaa ccgtcgattt cgtcctgcac 1020atcgaaccgg gccggaaaat ctacgtcaac gaaatccaca tcaccggcaa caacaaaacc 1080cgcgacgaag tcgtgcgccg cgaattgcgc caaatggaat ccgcgcctta cgacacctcc 1140aagctgcaac gctccaaaga gcgcgtcgag cttttgggct acttcgacaa cgtacagttt 1200gatgccgtcc cgcttgccgg tacgcccgac aaagtcgatt tgaacatgag cctgaccgaa 1260cgctccaccg gctcgctcga cttgagcgcg ggctgggttc aggataccgg cttggtcatg 1320tccgccggcg tatcgcagga caacctgttc ggtacgggca agtcggccgc cctgcgcgcc 1380tcgcgaagca aaaccacgct caacggctcg ctgtcgttta ccgacccgta cttcacggca 1440gacggggtca gcctgggcta cgatatttac ggaaaagcct tcgacccgcg caaagcatcg 1500accagcgtca aacaatataa aaccaccacc gccggcggcg gcgtaaggat gggtatcccc 1560gttaccgaat acgaccgcgt caatttcggg ctggcggcgg aacacctgac cgtcaacacc 1620tacaacaaag cacccaaacg ctatgccgac tttatcagga aatacggcaa aaccgacggc 1680gcagacggca gcttcaaagg cctgctgtac aaaggcaccg tcggctgggg gcgcaacaag 1740accgacagcg cgtcatggcc gacgcgcggc tacctgaccg gcgtaaatgc cgaaatcgcc 1800ctgcccggca gcaaactgca atactactcc gccacccaca accaaacctg gttcttcccc 1860ttaagcaaaa ccttcacgct gatgctcggc ggcgaagtcg gcattgcggg cggctacggc 1920agaaccaaag aaatcccctt ctttgaaaac ttctacggcg gcggcctggg ttcggtgcgc 1980ggctacgaaa gcggcacgct cggcccgaaa gtgtatgacg aatacggcga aaaaatcagc 2040tacggcggca acaaaaaagc caacgtctcc gccgagctgc tcttcccgat gcccggtgcg 2100aaagacgcac gcaccgtccg cctgagcctg tttgccgacg caggcagcgt gtgggacggc 2160agaacctata ccgccgccga aaacggtaac aacaaatcgg tttactcgga aaacgcgcat 2220aaatccacct ttaccaacga attgcgctat tccgccggcg gcgcggttac ctggctctcg 2280cctttgggtc cgatgaaatt cagctacgcc tacccgctga agaaaaaacc ggaagacgaa 2340atccaacgct tccaattcca gctcggcacg acgttctaa 2379<210>7<211>792<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>7Met Lys Leu Lys Gln Ile Ala Ser Ala Leu Met Met Leu Gly Ile Ser1 5 10 15Pro Leu Ala Phe Ala Asp Phe Thr Ile Gln Asp Ile Arg Val Glu Gly
20 25 30Leu Gln Arg Thr Glu Pro Ser Thr Val Phe Asn Tyr Leu Pro Val Lys
35 40 45Val Gly Asp Thr Tyr Asn Asp Thr His Gly Ser Ala Ile Ile Lys Ser
50 55 60Leu Tyr Ala Thr Gly Phe Phe Asp Asp Val Arg Val Glu Thr Ala Asp65 70 75 80Gly Gln Leu Leu Leu Thr Val Ile Glu Arg Pro Thr Ile Gly Ser Leu
85 90 95Asn Ile Thr Gly Ala Lys Met Leu Gln Asn Asp Ala Ile Lys Lys Asn
100 105 110Leu Glu Ser Phe Gly Leu Ala Gln Ser Gln Tyr Phe Asn Gln Ala Thr
115 120 125Leu Asn Gln Ala Val Ala Gly Leu Lys Glu Glu Tyr Leu Gly Arg Gly
130 135 140Lys Leu Asn Ile Gln Ile Thr Pro Lys Val Thr Lys Leu Ala Arg Asn145 150 155 160Arg Val Asp Ile Asp Ile Thr Ile Asp Glu Gly Lys Ser Ala Lys Ile
165 170 175Thr Asp Ile Glu Phe Glu Gly Asn Gln Val Tyr Ser Asp Arg Lys Leu
180 185 190Met Arg Gln Met Ser Leu Thr Glu Gly Gly Ile Trp Thr Trp Leu Thr
195 200 205Arg Ser Asp Arg Phe Asp Arg Gln Lys Phe Ala Gln Asp Met Glu Lys
210 215 220Val Thr Asp Phe Tyr Gln Asn Asn Gly Tyr Phe Asp Phe Arg Ile Leu225 230 235 240Asp Thr Asp Ile Gln Thr Asn Glu Asp Lys Thr Arg Gln Thr Ile Lys
245 250 255Ile Thr Val His Glu Gly Gly Arg Phe Arg Trp Gly Lys Val Ser Ile
260 265 270Glu Gly Asp Thr Asn Glu Val Pro Lys Ala Glu Leu Glu Lys Leu Leu
275 280 285Thr Met Lys Pro Gly Lys Trp Tyr Glu Arg Gln Gln Met Thr Ala Val
290 295 300Leu Gly Glu Ile Gln Asn Arg Met Gly Ser Ala Gly Tyr Ala Tyr Ser305 310 315 320Glu Ile Ser Val Gln Pro Leu Pro Asn Ala Gly Thr Lys Thr Val Asp
325 330 335Phe Val Leu His Ile Glu Pro Gly Arg Lys Ile Tyr Val Asn Glu Ile
340 345 350His Ile Thr Gly Asn Asn Lys Thr Arg Asp Glu Val Val Arg Arg Glu
355 360 365Leu Arg Gln Met Glu Ser Ala Pro Tyr Asp Thr Ser Lys Leu Gln Arg
370 375 380Ser Lys Glu Arg Val Glu Leu Leu Gly Tyr Phe Asp Asn Val Gln Phe385 390 395 400Asp Ala Val Pro Leu Ala Gly Thr Pro Asp Lys Val Asp Leu Asn Met
405 410 415Ser Leu Thr Glu Arg Ser Thr Gly Ser Leu Asp Leu Ser Ala Gly Trp
420 425 430Val Gln Asp Thr Gly Leu Val Met Ser Ala G1y Val Ser Gln Asp Asn
435 440 445Leu Phe Gly Thr Gly Lys Ser Ala Ala Leu Arg Ala Ser Arg Ser Lys
450 455 460Thr Thr Leu Asn Gly Ser Leu Ser Phe Thr Asp Pro Tyr Phe Thr Ala465 470 475 480Asp Gly Val Ser Leu Gly Tyr Asp Ile Tyr Gly Lys Ala Phe Asp Pro
485 490 495Arg Lys Ala Ser Thr Ser Val Lys Gln Tyr Lys Thr Thr Thr Ala Gly
500 505 510Gly Gly Val Arg Met Gly Ile Pro Val Thr Glu Tyr Asp Arg Val Asn
515 520 525Phe Gly Leu Ala Ala Glu His Leu Thr Val Asn Thr Tyr Asn Lys Ala
530 535 540Pro Lys Arg Tyr Ala Asp Phe Ile Arg Lys Tyr Gly Lys Thr Asp Gly545 550 555 560Ala Asp Gly Ser Phe Lys Gly Leu Leu Tyr Lys Gly Thr Val Gly Trp
565 570 575Gly Arg Asn Lys Thr Asp Ser Ala Ser Trp Pro Thr Arg Gly Tyr Leu
580 585 590Thr Gly Val Asn Ala Glu Ile Ala Leu Pro Gly Ser Lys Leu Gln Tyr
595 600 605Tyr Ser Ala Thr His Asn Gln Thr Trp Phe Phe Pro Leu Ser Lys Thr
610 615 620Phe Thr Leu Met Leu Gly Gly Glu Val Gly Ile Ala Gly Gly Tyr Gly625 630 635 640Arg Thr Lys Glu Ile Pro Phe Phe Glu Asn Phe Tyr Gly Gly Gly Leu
645 650 655Gly Ser Val Arg Gly Tyr Glu Ser Gly Thr Leu Gly Pro Lys Val Tyr
660 665 670Asp Glu Tyr Gly GluL ys Ile Ser Tyr Gly Gly Asn Lys Lys Ala Asn
675 680 685Val Ser Ala Glu Leu Leu Phe Pro Met Pro Gly Ala Lys Asp Ala Arg
690 695 700Thr Val Arg Leu Ser Leu Phe Ala Asp Ala Gly Ser Val Trp Asp Gly705 710 715 720Arg Thr Tyr Thr Ala Ala Glu Asn Gly Asn Asn Lys Ser Val Tyr Ser
725 730 735Glu Asn Ala His Lys Ser Thr Phe Thr Asn Glu Leu Arg Tyr Ser Ala
740 745 750Gly Gly Ala Val Thr Trp Leu Ser Pro Leu Gly Pro Met Lys Phe Ser
755 760 765Tyr Ala Tyr Pro Leu Lys Lys Lys Pro Glu Asp Glu Ile Gln Arg Phe
770 775 780Gln Phe Gln Leu Gly Thr Thr Phe785 790<210>8<211>21<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>8Met Lys Leu Lys Gln Ile Ala Ser Ala Leu Met Met Leu Gly Ile Ser1 5 10 15Pro Leu Ala Phe Ala
20<210>9<211>771<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>9Asp Phe Thr Ile Gln Asp Ile Arg Val Glu Gly Leu Gln Arg Thr Glu1 5 10 15Pro Ser Thr Val Phe Asn Tyr Leu Pro Val Lys Val Gly Asp Thr Tyr
20 25 30Asn Asp Thr His Gly Ser Ala Ile Ile Lys Ser Leu Tyr Ala Thr Gly
35 40 45Phe Phe Asp Asp Val Arg Val Glu Thr Ala Asp Gly Gln Leu Leu Leu
50 55 60Thr Val Ile Glu Arg Pro Thr Ile Gly Ser Leu Asn Ile Thr Gly Ala65 70 75 80Lys Met Leu Gln Asn Asp Ala Ile Lys Lys Asn Leu Glu Ser Phe Gly
85 90 95Leu Ala Gln Ser Gln Tyr Phe Asn Gln Ala Thr Leu Asn Gln Ala Val
100 105 110Ala Gly Leu Lys Glu Glu Tyr Leu Gly Arg Gly Lys Leu Asn Ile Gln
115 120 125Ile Thr Pro Lys Val Thr Lys Leu Ala Arg Asn Arg Val Asp Ile Asp
130 135 140Ile Thr Ile Asp Glu Gly Lys Ser Ala Lys Ile Thr Asp Ile Glu Phe145 150 155 160Glu Gly Asn Gln Val Tyr Ser Asp Arg Lys Leu Met Arg Gln Met Ser
165 170 175Leu Thr Glu Gly Gly Ile Trp Thr Trp Leu Thr Arg Ser Asp Arg Phe
180 185 190Asp Arg Gln Lys Phe Ala Gln Asp Met Glu Lys Val Thr Asp Phe Tyr
195 200 205Gln Asn Asn Gly Tyr Phe Asp Phe Arg Ile Leu Asp Thr Asp Ile Gln
210 215 220Thr Asn Glu Asp Lys Thr Arg Gln Thr Ile Lys Ile Thr Val His Glu225 230 235 240Gly Gly Arg Phe Arg Trp Gly Lys Val Ser Ile Glu Gly Asp Thr Asn
245 250 255Glu Val Pro Lys Ala Glu Leu Glu Lys Leu Leu Thr Met Lys Pro Gly
260 265 270Lys Trp Tyr Glu Arg Gln Gln Met Thr Ala Val Leu Gly Glu Ile Gln
275 280 285Asn Arg Met Gly Ser Ala Gly Tyr Ala Tyr Ser Glu Ile Ser Val Gln
290 295 300Pro Leu Pro Asn Ala Gly Thr Lys Thr Val Asp Phe Val Leu His Ile305 310 315 320Glu Pro Gly Arg Lys Ile Tyr Val Asn Glu Ile His Ile Thr Gly Asn
325 330 335Asn Lys Thr Arg Asp Glu Val Val Arg Arg Glu Leu Arg Gln Met Glu
340 345 350Ser Ala Pro Tyr Asp Thr Ser Lys Leu Gln Arg Ser Lys Glu Arg Val
355 360 365Glu Leu Leu Gly Tyr Phe Asp Asn Val Gln Phe Asp Ala Val Pro Leu
370 375 380Ala Gly Thr Pro Asp Lys Val Asp Leu Asn Met Ser Leu Thr Glu Arg385 390 395 400Ser Thr Gly Ser Leu Asp Leu Ser Ala Gly Trp Val Gln Asp Thr Gly
405 410 415Leu Val Met Ser Ala Gly Val Ser Gln Asp Asn Leu Phe Gly Thr Gly
420 425 430Lys Ser Ala Ala Leu Arg Ala Ser Arg Ser Lys Thr Thr Leu Asn Gly
435 440 445Ser Leu Ser Phe Thr Asp Pro Tyr Phe Thr Ala Asp Gly Val Ser Leu
450 455 460Gly Tyr Asp Ile Tyr Gly Lys Ala Phe Asp Pro Arg Lys Ala Ser Thr465 470 475 480Ser Val Lys Gln Tyr Lys Thr Thr Thr Ala Gly Gly Gly Val Arg Met
485 490 495Gly Ile Pro Val Thr Glu Tyr Asp Arg Val Asn Phe Gly Leu Ala Ala
500 505 510Glu His Leu Thr Val Asn Thr Tyr Asn Lys Ala Pro Lys Arg Tyr Ala
515 520 525Asp Phe Ile Arg Lys Tyr Gly Lys Thr Asp Gly Ala Asp Gly Ser Phe
530 535 540Lys Gly Leu Leu Tyr Lys Gly Thr Val Gly Trp Gly Arg Asn Lys Thr545 550 555 560Asp Ser Ala Ser Trp Pro Thr Arg Gly Tyr Leu Thr Gly Val Asn Ala
565 570 575Glu Ile Ala Leu Pro Gly Ser Lys Leu Gln Tyr Tyr Ser Ala Thr His
580 585 590Asn Gln Thr Trp Phe Phe Pro Leu Ser Lys Thr Phe Thr Leu Met Leu
595 600 605Gly Gly Glu Val Gly Ile Ala Gly Gly Tyr Gly Arg Thr Lys Glu Ile
610 615 620Pro Phe Phe Glu Asn Phe Tyr Gly Gly Gly Leu Gly Ser Val Arg Gly625 630 635 640Tyr Glu Ser Gly Thr Leu Gly Pro Lys Val Tyr Asp Glu Tyr Gly Glu
645 650 655Lys Ile Ser Tyr Gly Gly Asn Lys Lys Ala Asn Val Ser Ala Glu Leu
660 665 670Leu Phe Pro Met Pro Gly Ala Lys Asp Ala Arg Thr Val Arg Leu Ser
675 680 685Leu Phe Ala Asp Ala Gly Ser Val Trp Asp Gly Arg Thr Tyr Thr Ala
690 695 700Ala Glu Asn Gly Asn Asn Lys Ser Val Tyr Ser Glu Asn Ala His Lys705 710 715 720Ser Thr Phe Thr Asn Glu Leu Arg Tyr Ser Ala Gly Gly Ala Val Thr
725 730 735Trp Leu Ser Pro Leu Gly Pro Met Lys Phe Ser Tyr Ala Tyr Pro Leu
740 745 750Lys Lys Lys Pro Glu Asp Glu Ile Gln Arg Phe Gln Phe Gln Leu Gly
755 760 765Thr Thr Phe
770<210>10<211>2394<212>DNA<213>淋病奈瑟球菌(Neisseria gonorrhocae)<400>10atgaaactga aacagattgc ttccgcactg atggtcttgg gcatatcgcc tttggcactt 60gccgacttca ccatccaaga catccgcgtc gaaggcttgc agcgtaccga gccgagtacc 120gtattcaact acctgcccgt caaagtcggc gacacctaca acgacacaca cggcagtgcc 180atcatcaaaa gcctgtacgc caccggtttc tttgacgacg tacgcgtcga aactgcggac 240gggcagctcc tgctgaccgt tatcgaacgc cccaccatcg gctcgctcaa catcaccggc 300gcaaaaatgc tgcaaaacga cgccattaag aaaaacctcg aatcgttcgg gctggcgcag 360tcgcaatact ttaatcaggc gacactcaat caggcagtcg ccggcctgaa agaagaatac 420ctcgggcgcg gcaaactcaa tatccaaatc acgcccaaag taaccaaact cgcccgcaac 480cgcgtcgaca tcgacatcac gattgacgag ggcaaatccg ccaaaatcac cgacatcgaa 540tttgaaggca accaagtcta ttccgaccgc aaactgatgc ggcagatgtc gctgaccgaa 600ggcggcattt ggacatggct gacacgaagc aaccaattca acgagcagaa atttgcccaa 660gacatggaaa aagtaaccga cttctaccag aacaacggct acttcgattt ccgcatcctc 720gataccgaca tccaaaccaa cgaagacaaa accaagcaga ccatcaaaat caccgtccac 780gaaggcggac gtttccgttg gggcaaagtc tccatcgaag gcgacaccaa cgaagtcccc 840aaagccgaac tggaaaaact gctgaccatg aagcccggca aatggtacga acgccagcag 900atgaccgccg ttttgggtga gattcagaac cgcatgggct cggcaggcta cgcatacagc 960gaaatcagcg tacagccgct gccaaacgcc gaaaccaaaa ccgtcgattt cgtcctgcac 1020atcgaaccgg gccggaaaat ctacgtcaac gaaatccaca tcaccggcaa caacaaaacc 1080cgcgacgaag tcgtgcgccg cgaattgcgc caaatggaat ccgcgcctta cgacacctcc 1140aagctgcaac gctccaaaga gcgcgtcgag cttttgggct acttcgacaa cgtacagttt 1200gatgccgtcc cgcttgccgg cacacccgac aaagtcgatt tgaacatgag cctgaccgaa 1260cgttccaccg gctcgctcga cttgagcgcg ggctgggtac aggataccgg cctggtcatg 1320tccgcaggcg tttcccaaga caacctgttc ggtacgggca agtcggccgc cctgcgcgcc 1380tcacgaagca aaaccacgct caacggctcg ctgtcgttta ccgacccgta cttcacggca 1440gacggggtca gcctgggcta cgatgtttac ggaaaagcct tcgacccgcg caaagcatcg 1500accagcatca aacaatataa aaccaccacg gcaggcgcag gcatccgcat gagcgtgcct 1560gttaccgaat acgaccgcgt gaatttcggt ttggtggcag aacacctgac cgtcaacacc 1620tacaacaaag cgcccaaaca ctatgccgac tttatcaaga aatacggcaa aaccgacggc 1680acagacggca gcttcaaagg ctggctgtac aaaggtaccg tcggctgggg gcgcaacaaa 1740accgacagcg cgttatggcc gacgcgcggc tacctgacgg gcgtgaacgc cgaaatcgcc 1800ctgcccggca gcaaactgca atactactcc gccacccaca accaaacctg gttcttcccc 1860ttaagcaaaa ccttcacgct gatgctcggc ggcgaagtcg gcattgcggg cggctacggc 1920agaaccaaag aaatcccctt ctttgaaaac ttctacggcg gcggcctggg ttcggtgcgc 1980ggatacgaaa gcggcacgct cggtccgaaa gtgtatgacg aatacggcga aaaaatcagc 2040tacggcggca acaaaaaagc caacgtctcc gccgagctgc tcttcccgat gcccggcgcg 2100aaagacgcgc gcaccgtccg cctgagcctg tttgccgacg caggcagcgt gtgggacggc 2160aaaacctacg acgacaacag cagttccgcg accggcggca gggttcaaaa catttacggc 2220gccggcaata cccataaatc cacctttacc aacgaattgc gctattccgc cggcggcgcg 2280gttacctggc tctcgccttt aggcccgatg aaattcagct acgcctaccc gctgaagaaa 2340aaaccggaag acgaaatcca acgcttccaa ttccaactcg gcacgacgtt ctaa 2394<210>11<211>797<212>PRT<213>淋病奈瑟球菌(Neisseria gonorrhoeae)<400>11Met Lys Leu Lys Gln Ile Ala Ser Ala Leu Met Val Leu Gly Ile Ser1 5 10 15Pro Leu Ala Leu Ala Asp Phe Thr Ile Gln Asp Ile Arg Val Glu Gly
20 25 30Leu Gln Arg Thr Glu Pro Ser Thr Val Phe Asn Tyr Leu Pro Val Lys
35 40 45Val Gly Asp Thr Tyr Asn Asp Thr His Gly Ser Ala Ile Ile Lys Ser
50 55 60Leu Tyr Ala Thr Gly Phe Phe Asp Asp Val Arg Val Glu Thr Ala Asp65 70 75 80Gly Gln Leu Leu Leu Thr Val Ile Glu Arg Pro Thr Ile Gly Ser Leu
85 90 95Asn Ile Thr Gly Ala Lys Met Leu Gln Asn Asp Ala Ile Lys Lys Asn
100 105 110Leu Glu Ser Phe Gly Leu Ala Gln Ser Gln Tyr Phe Asn Gln Ala Thr
115 120 125Leu Asn Gln Ala Val Ala Gly Leu Lys Glu Glu Tyr Leu Gly Arg Gly
130 135 140Lys Leu Asn Ile Gln Ile Thr Pro Lys Val Thr Lys Leu Ala Arg Asn145 150 155 160Arg Val Asp Ile Asp Ile Thr Ile Asp Glu Gly Lys Ser Ala Lys Ile
165 170 175Thr Asp Ile Glu Phe Glu Gly Asn Gln Val Tyr Ser Asp Arg Lys Leu
180 185 190Met Arg Gln Met Ser Leu Thr Glu Gly Gly Ile Trp Thr Trp Leu Thr
195 200 205Arg Ser Asn Gln Phe Asn Glu Gln Lys Phe Ala Gln Asp Met Glu Lys
210 215 220Val Thr Asp Phe Tyr Gln Asn Asn Gly Tyr Phe Asp Phe Arg Ile Leu225 230 235 240Asp Thr Asp Ile Gln Thr Asn Glu Asp Lys Thr Lys Gln Thr Ile Lys
245 250 255Ile Thr Val His Glu Gly Gly Arg Phe Arg Trp Gly Lys Val Ser Ile
260 265 270Glu Gly Asp Thr Asn Glu Val Pro Lys Ala Glu Leu Glu Lys Leu Leu
275 280 285Thr Met Lys Pro Gly Lys Trp Tyr Glu Arg Gln Gln Met Thr Ala Val
290 295 300Leu Gly Glu Ile Gln Asn Arg Met Gly Ser Ala Gly Tyr Ala Tyr Ser305 310 315 320Glu Ile Ser Val Gln Pro Leu Pro Asn Ala Glu Thr Lys Thr Val Asp
325 330 335Phe Val Leu His Ile Glu Pro Gly Arg Lys Ile Tyr Val Asn Glu Ile
340 345 350His Ile Thr Gly Asn Asn Lys Thr Arg Asp Glu Val Val Arg Arg Glu
355 360 365Leu Arg Gln Met Glu Ser Ala Pro Tyr Asp Thr Ser Lys Leu Gln Arg
370 375 380Ser Lys Glu Arg Val Glu Leu Leu Gly Tyr Phe Asp Asn Val Gln Phe385 390 395 400Asp Ala Val Pro Leu Ala Gly Thr Pro Asp Lys Val Asp Leu Asn Met
405 410 415Ser Leu Thr Glu Arg Ser Thr Gly Ser Leu Asp Leu Ser Ala Gly Trp
420 425 430Val Gln Asp Thr Gly Leu Val Met Ser Ala Gly Val Ser Gln Asp Asn
435 440 445Leu Phe Gly Thr Gly Lys Ser Ala Ala Leu Arg Ala Ser Arg Ser Lys
450 455 460Thr Thr Leu Asn Gly Ser Leu Ser Phe Thr Asp Pro Tyr Phe Thr Ala465 470 475 480Asp Gly Val Ser Leu Gly Tyr Asp Val Tyr Gly Lys Ala Phe Asp Pro
485 490 495Arg Lys Ala Ser Thr Ser Ile Lys Gln Tyr Lys Thr Thr Thr Ala Gly
500 505 510Ala Gly Ile Arg Met Ser Val Pro Val Thr Glu Tyr Asp Arg Val Asn
515 520 525Phe Gly Leu Val Ala Glu His Leu Thr Val Asn Thr Tyr Asn Lys Ala
530 535 540Pro Lys His Tyr Ala Asp Phe Ile Lys Lys Tyr Gly Lys Thr Asp Gly545 550 555 560Thr Asp Gly Ser Phe Lys Gly Trp Leu Tyr Lys Gly Thr Val Gly Trp
565 570 575Gly Arg Asn Lys Thr Asp Ser Ala Leu Trp Pro Thr Arg Gly Tyr Leu
580 585 590Thr Gly Val Asn Ala Glu Ile Ala Leu Pro Gly Ser Lys Leu Gln Tyr
595 600 605Tyr Ser Ala Thr His Asn Gln Thr Trp Phe Phe Pro Leu Ser Lys Thr
610 615 620Phe Thr Leu Met Leu Gly Gly Glu Val Gly Ile Ala Gly Gly Tyr Gly625 630 635 640Arg Thr Lys Glu Ile Pro Phe Phe Glu Asn Phe Tyr Gly Gly Gly Leu
645 650 655Gly Ser Val Arg Gly Tyr Glu Ser Gly Thr Leu Gly Pro Lys Val Tyr
660 665 670Asp Glu Tyr Gly Glu Lys Ile Ser Tyr Gly Gly Asn Lys Lys Ala Asn
675 680 685Val Ser Ala Glu Leu Leu Phe Pro Met Pro Gly Ala Lys Asp Ala Arg
690 695 700Thr Val Arg Leu Ser Leu Phe Ala Asp Ala Gly Ser Val Trp Asp Gly705 710 715 720Lys Thr Tyr Asp Asp Asn Ser Ser Ser Ala Thr Gly Gly Arg Val Gln
725 730 735Asn Ile Tyr Gly Ala Gly Asn Thr His Lys Ser Thr Phe Thr Asn Glu
740 745 750Leu Arg Tyr Ser Ala Gly Gly Ala Val Thr Trp Leu Ser Pro Leu Gly
755 760 765Pro Met Lys Phe Ser Tyr Ala Tyr Pro Leu Lys Lys Lys Pro Glu Asp
770 775 780Glu Ile Gln Arg Phe Gln Phe Gln Leu Gly Thr Thr Phe785 790 795<210>12<211>21<212>PRT<213>淋病奈瑟球菌(Neisseria gonorrhoeae)<400>12Met Lys Leu Lys Gln Ile Ala Ser Ala Leu Met Val Leu Gly Ile Ser1 5 10 15Pro Leu Ala Leu Ala
20<210>13<211>776<212>PRT<213>淋病奈瑟球菌(Neisseria gonorrhoeae)<400>13Asp Phe Thr Ile Gln Asp Ile Arg Val Glu Gly Leu Gln Arg Thr Glu1 5 10 15Pro Ser Thr Val Phe Asn Tyr Leu Pro Val Lys Val Gly Asp Thr Tyr
20 25 30Asn Asp Thr His Gly Ser Ala Ile Ile Lys Ser Leu Tyr Ala Thr Gly
35 40 45Phe Phe Asp Asp Val Arg Val Glu Thr Ala Asp Gly Gln Leu Leu Leu
50 55 60Thr Val Ile Glu Arg Pro Thr Ile Gly Ser Leu Asn Ile Thr Gly Ala65 70 75 80Lys Met Leu Gln Asn Asp Ala Ile Lys Lys Asn Leu Glu Ser Phe Gly
85 90 95Leu Ala Gln Ser Gln Tyr Phe Asn Gln Ala Thr Leu Asn Gln Ala Val
100 105 110Ala Gly Leu Lys Glu Glu Tyr Leu Gly Arg Gly Lys Leu Asn Ile Gln
115 120 125Ile Thr Pro Lys Val Thr Lys Leu Ala Arg Asn Arg Val Asp Ile Asp
130 135 140Ile Thr Ile Asp Glu Gly Lys Ser Ala Lys Ile Thr Asp Ile Glu Phe145 150 155 160Glu Gly Asn Gln Val Tyr Ser Asp Arg Lys Leu Met Arg Gln Met Ser
165 170 175Leu Thr Glu Gly Gly Ile Trp Thr Trp Leu Thr Arg Ser Asn Gln Phe
180 185 190Asn Glu Gln Lys Phe Ala Gln Asp Met Glu Lys Val Thr Asp Phe Tyr
195 200 205Gln Asn Asn Gly Tyr Phe Asp Phe Arg Ile Leu Asp Thr Asp Ile Gln
210 215 220Thr Asn Glu Asp Lys Thr Lys Gln Thr Ile Lys Ile Thr Val His Glu225 230 235 240Gly Gly Arg Phe Arg Trp Gly Lys Val Ser Ile Glu Gly Asp Thr Asn
245 250 255Glu Val Pro Lys Ala Glu Leu Glu Lys Leu Leu Thr Met Lys Pro Gly
260 265 270Lys Trp Tyr Glu Arg Gln Gln Met Thr Ala Val Leu Gly Glu Ile Gln
275 280 285Asn Arg Met Gly Ser Ala Gly Tyr Ala Tyr Ser Glu Ile Ser Val Gln
290 295 300Pro Leu Pro Asn Ala Glu Thr Lys Thr Val Asp Phe Val Leu His Ile305 310 315 320Glu Pro Gly Arg Lys Ile Tyr Val Asn Glu Ile His Ile Thr Gly Asn
325 330 335Asn Lys Thr Arg Asp Glu Val Val Arg Arg Glu Leu Arg Gln Met Glu
340 345 350Ser Ala Pro Tyr Asp Thr Ser Lys Leu Gln Arg Ser Lys Glu Arg Val
355 360 365Glu Leu Leu Gly Tyr Phe Asp Asn Val Gln Phe Asp Ala Val Pro Leu
370 375 380Ala Gly Thr Pro Asp Lys Val Asp Leu Asn Met Ser Leu Thr Glu Arg385 390 395 400Ser Thr Gly Ser Leu Asp Leu Ser Ala Gly Trp Val Gln Asp Thr Gly
405 410 415Leu Val Met Ser Ala Gly Val Ser Gln Asp Asn Leu Phe Gly Thr Gly
420 425 430Lys Ser Ala Ala Leu Arg Ala Ser Arg Ser Lys Thr Thr Leu Asn Gly
435 440 445Ser Leu Ser Phe Thr Asp Pro Tyr Phe Thr Ala Asp Gly Val Ser Leu
450 455 460Gly Tyr Asp Val Tyr Gly Lys Ala Phe Asp Pro Arg Lys Ala Ser Thr465 470 475 480Ser Ile Lys Gln Tyr Lys Thr Thr Thr Ala Gly Ala Gly Ile Arg Met
485 490 495Ser Val Pro Val Thr Glu Tyr Asp Arg Val Asn Phe Gly Leu Val Ala
500 505 510Glu His Leu Thr Val Asn Thr Tyr Asn Lys Ala Pro Lys His Tyr Ala
515 520 525Asp Phe Ile Lys Lys Tyr Gly Lys Thr Asp Gly Thr Asp Gly Ser Phe
530 535 540Lys Gly Trp Leu Tyr Lys Gly Thr Val Gly Trp Gly Arg Asn Lys Thr545 550 555 560Asp Ser Ala Leu Trp Pro Thr Arg Gly Tyr Leu Thr Gly Val Asn Ala
565 570 575Glu Ile Ala Leu Pro Gly Ser Lys Leu Gln Tyr Tyr Ser Ala Thr His
580 585 590Asn Gln Thr Trp Phe Phe Pro Leu Ser Lys Thr Phe Thr Leu Met Leu
595 600 605Gly Gly Glu Val Gly Ile Ala Gly Gly Tyr Gly Arg Thr Lys Glu Ile
610 615 620Pro Phe Phe Glu Asn Phe Tyr Gly Gly Gly Leu Gly Ser Val Arg Gly625 630 635 640Tyr Glu Ser Gly Thr Leu Gly Pro Lys Val Tyr Asp Glu Tyr Gly Glu
645 650 655Lys Ile Ser Tyr Gly Gly Asn Lys Lys Ala Asn Val Ser Ala Glu Leu
660 665 670Leu Phe Pro Met Pro Gly Ala Lys Asp Ala Arg Thr Val Arg Leu Ser
675 680 685Leu Phe Ala Asp Ala Gly Ser Val Trp Asp Gly Lys Thr Tyr Asp Asp
690 695 700Asn Ser Ser Ser Ala Thr Gly Gly Arg Val Gln Asn Ile Tyr Gly Ala705 710 715 720Gly Ash Thr His Lys Ser Thr Phe Thr Asn Glu Leu Arg Tyr Ser Ala
725 730 735Gly Gly Ala Val Thr Trp Leu Ser Pro Leu Gly Pro Met Lys Phe Ser
740 745 750Tyr Ala Tyr Pro Leu Lys Lys Lys Pro Glu Asp Glu Ile Gln Arg Phe
755 760 765Gln Phe Gln Leu Gly Thr Thr Phe
770 775<210>14<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>14Gly Leu Gln Arg Thr1 5<210>15<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>15Lys Val Gly Asp Thr Tyr Asn Asp Thr1 5<210>16<211>6<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>16Phe Phe Asp Asp Val Arg1 5<210>17<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>17Gln Ala Val Ala Gly1 5<210>18<211>12<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>18Ala Gly Leu Asp Met Glu Lys Val Thr Asp Phe Tyr1 5 10<210>19<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>19Lys Ala Glu Leu Glu Lys Leu Leu Thr Met1 5 10<210>20<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>20Pro Gly Lys Trp Tyr1 5<210>21<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>21Ala Val Leu Gly Glu Ile Gln Asn Arg1 5<210>22<211>6<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>22Arg Glu Leu Arg Gln Met1 5<210>23<211>7<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>23Thr Ser Lys Leu Gln Arg Ser1 5<210>24<211>8<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>24Leu Gly Tyr Phe Asp Asn Val Gln1 5<210>25<211>23<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>25Thr Val Asn Thr Tyr Asn Lys Ala Pro Lys His Tyr Ala Asp Phe Ile1 5 10 15Lys Lys Tyr Gly Lys Thr Asp
20<210>26<211>6<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>26Gly Ser Phe Lys Gly Trp1 5<210>27<211>8<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>27Gly Ser Val Arg Gly Tyr Glu Ser1 5<210>28<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>28Pro Lys Val Tyr Asp Glu Tyr Gly Glu Lys1 5 10<210>29<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>29Gly Arg Val Gln Asn Ile Tyr Gly Ala Gly1 5 10<210>30<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>30His Lys Ser Thr Phe1 5<210>31<211>8<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>31Thr Trp Leu Ser Pro Leu Gly Pro1 5<210>32<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>32Lys Pro Glu Asp Glu1 5<210>33<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>33Met Lys Leu Lys Gln1 5<210>34<211>14<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>34Asp Ile Arg Val Glu Gly Leu Gln Arg Thr Glu Pro Ser Thr1 5 10<210>35<211>11<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>35Lys Val Gly Asp Thr Tyr Asn Asp Thr His Gly1 5 10<210>36<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>36Asp Asp Val Arg Val Glu Thr Ala Asp Gly1 5 10<210>37<211>6<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>37Ile Glu Arg Pro Thr Ile1 5<210>38<211>14<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>38Lys Met Leu Gln Asn Asp Ala Ile Lys Lys Asn Leu Glu Ser1 5 10<210>39<211>13<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>39Gly Leu Lys Glu Glu Tyr Leu Gly Arg Gly Lys Leu Asn1 5 10<210>40<211>12<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>40Lys Val Thr Lys Leu Ala Arg Asn Arg Val Asp Ile1 5 10<210>41<211>29<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>41Ile Thr Ile Asp Glu Gly Lys Ser Ala Lys Ile Thr Asp Ile Glu Phe1 5 10 15Glu Gly Asn Gln Val Tyr Ser Asp Arg Lys Leu Met Arg
20 25<210>42<211>19<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>42Thr Arg Ser Asn Gln Phe Asn Glu Gln Lys Phe Ala Gln Asp Met Glu1 5 10 15Lys Val Thr<210>43<211>6<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>43Tyr Gln Asn Asn Gly Tyr1 5<210>44<211>18<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>44Arg Ile Leu Asp Thr Asp Ile Gln Thr Asn Glu Asp Lys Thr Lys Gln1 5 10 15Thr Ile<210>45<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>45Val His Glu Gly Gly Arg Phe Arg Trp1 5<210>46<211>16<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>46Ser Ile Glu Gly Asp Thr Asn Glu Val Pro Lys Ala Glu Leu Glu Lys1 5 10 15<210>47<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>47Lys Pro Gly Lys Trp Tyr Glu Arg Gln Gln1 5 10<210>48<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>48Ile Gln Asn Arg Met Gly Ser Ala Gly1 5<210>49<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>49Pro Leu Pro Asn Ala Glu Thr Lys Thr1 5<210>50<211>8<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>50Ile Glu Pro Gly Arg Lys Ile Tyr1 5<210>51<211>37<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>51Ile Thr Gly Asn Asn Lys Thr Arg Asp Glu Val Val Arg Arg Glu Leu1 5 10 15Arg Gln Met Glu Ser Ala Pro Tyr Asp Thr Ser Lys Leu Gln Arg Ser
20 25 30Lys Glu Arg Val Glu
35<210>52<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>52Ala Gly Thr Pro Asp Lys Val Asp Leu1 5<210>53<211>11<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>53Met Ser Leu Thr Glu Arg Ser Thr Gly Ser Leu1 5 10<210>54<211>25<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>54Gly Val Ser Gln Asp Asn Leu Phe Gly Thr Gly Lys Ser Ala Ala Leu1 5 10 15Arg Ala Ser Arg Ser Lys Thr Thr Leu
20 25<210>55<211>22<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>55Val Tyr Gly Lys Ala Phe Asp Pro Arg Lys Ala Ser Thr Ser Ile Lys1 5 10 15Gln Tyr Lys Thr Thr Thr
20<210>56<211>8<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>56Thr Glu Tyr Asp Arg Val Asn Phe1 5<210>57<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>57Asn Thr Tyr Asn Lys Ala Pro Lys His Tyr1 5 10<210>58<211>15<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>58Phe Ile Lys Lys Tyr Gly Lys Thr Asp Gly Thr Asp Gly Ser Phe1 5 10 15<210>59<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>59Val Gly Trp Gly Arg Asn Lys Thr Asp Ser1 5 10<210>60<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>60Leu Pro Gly Ser Lys1 5<210>61<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>61Thr His Asn Gln Thr1 5<210>62<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>62Gly Gly Tyr Gly Arg Thr Lys Glu Ile Pro1 5 10<210>63<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>63Phe Tyr Gly Gly Gly1 5<210>64<211>33<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>64Gly Ser Val Arg Gly Tyr Glu Ser Gly Thr Leu Gly Pro Lys Val Tyr1 5 10 15Asp Glu Tyr Gly Glu Lys Ile Ser Tyr Gly Gly Asn Lys Lys Ala Asn
20 25 30Val<210>65<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>65Pro Gly Ala Lys Asp Ala Arg Thr Val Arg1 5 10<210>66<211>25<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>66Asp Ala Gly Ser Val Trp Asp Gly Lys Thr Tyr Asp Asp Asn Ser Ser1 5 10 15Ser Ala Thr Gly Gly Arg Val Gln Asn
20 25<210>67<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>67Gly Ala Gly Asn Thr His Lys Ser Thr Phe1 5 10<210>68<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>68Asn Glu Leu Arg Tyr Ser Ala Gly Gly1 5<210>69<211>6<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>69Ser Pro Leu Gly Pro Met1 5<210>70<211>12<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>70Tyr Pro Leu Lys Lys Lys Pro Glu Asp Glu Ile Gln1 5 10<210>71<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>71Met Lys Leu Lys Gln1 5<210>72<211>12<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>72Asp Ile Arg Val Glu Gly Leu Gln Arg Thr Glu Pro1 5 10<210>73<211>7<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>73Lys Val Gly Asp Thr Tyr Asn1 5<210>74<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>74Asp Asp Val Arg Val Glu Thr Ala Asp1 5<210>75<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>75Ile Glu Arg Pro Thr1 5<210>76<211>8<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>76Asp Ala Ile Lys Lys Asn Leu Glu1 5<210>77<211>12<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>77Gly Leu Lys Glu Glu Tyr Leu Gly Arg Gly Lys Leu1 5 10<210>78<211>12<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>78Lys Val Thr Lys Leu Ala Arg Asn Arg Val Asp Ile1 5 10<210>79<211>18<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>79Ile Thr Ile Asp Glu Gly Lys Ser Ala Lys Ile Thr Asp Ile Glu Phe1 5 10 15Glu Gly<210>80<211>8<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>80Tyr Ser Asp Arg Lys Leu Met Arg1 5<210>81<211>16<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>81Asn Gln Phe Asn Glu Gln Lys Phe Ala Gln Asp Met Glu Lys Val Thr1 5 10 15<210>82<211>18<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>82Arg Ile Leu Asp Thr Asp Ile Gln Thr Asn Glu Asp Lys Thr Lys Gln1 5 10 15Thr Ile<210>83<211>7<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>83Glu Gly Gly Arg Phe Arg Trp1 5<210>84<211>16<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>84Ser Ile Glu Gly Asp Thr Asn Glu Val Pro Lys Ala Glu Leu Glu Lys1 5 10 15<210>85<211>6<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>85Ile Gln Asn Arg Met Gly1 5<210>86<211>7<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>86Pro Asn Ala Glu Thr Lys Thr1 5<210>87<211>7<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>87Glu Pro Gly Arg Lys Ile Tyr1 5<210>88<211>18<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>88Gly Asn Asn Lys Thr Arg Asp Glu Val Val Arg Arg Glu Leu Arg Gln1 5 10 15Met Glu<210>89<211>16<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>89Ala Pro Tyr Asp Thr Ser Lys Leu Gln Arg Ser Lys Glu Arg Val Glu1 5 10 15<210>90<211>8<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>90Gly Thr Pro Asp Lys Val Asp Leu1 5<210>91<211>7<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>91Leu Thr Glu Arg Ser Thr Gly1 5<210>92<211>14<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>92Lys Ser Ala Ala Leu Arg Ala Ser Arg Ser Lys Thr Thr Leu1 5 10<210>93<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>93Ala Phe Asp Pro Arg Lys Ala Ser Thr Ser1 5 10<210>94<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>94Thr Glu Tyr Asp Arg1 5<210>95<211>7<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>95Asn Lys Ala Pro Lys His Tyr1 5<210>96<211>15<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>96Phe Ile Lys Lys Tyr Gly Lys Thr Asp Gly Thr Asp Gly Ser Phe1 5 10 15<210>97<211>7<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>97Gly Arg Asn Lys Thr Asp Ser1 5<210>98<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>98Gly Arg Thr Lys Glu1 5<210>99<211>8<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>99Lys Val Tyr Asp Glu Tyr Gly Glu1 5<210>100<211>7<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>100Gly Asn Lys Lys Ala Asn Val1 5<210>101<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>101Gly Ala Lys Asp Ala Arg Thr Val Arg1 5<210>102<211>9<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>102Lys Thr Tyr Asp Asp Asn Ser Ser Ser1 5<210>103<211>5<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>103Thr Gly Gly Arg Val1 5<210>104<211>10<212>PRT<213>脑膜炎奈瑟球菌(Neisseria meningitidis)<400>104Leu Lys Lys Lys Pro Glu Asp Glu Ile Gln1 5 10<210>105<211>33<212>DNA<213>人工序列<220><223>orf21正向引物<400>105cgcggatccc atatggactt caccatccaa gac 33<210>106<211>28<212>DNA<213>人工序列<220><223>orf21反向引物<400>106cccgctcgag ttagaacgtc gtgccgag 28
Claims (14)
1.包括一个或多个如下氨基酸序列的蛋白质:SEQ ID 1、SEQ ID 3、SEQ ID4、SEQ ID 5、SEQ ID 7、SEQ ID 8、SEQ ID 9、SEQ ID 11、SEQ ID 12、SEQ ID 13、和SEQ ID 14到104。
2.包括与如下序列相同性高于50%的序列的蛋白质:SEQ ID 1、SEQ ID 3、SEQ ID 4、SEQ ID 5、SEQ ID 7、SEQ ID 8、SEQ ID 9、SEQ ID 11、SEQ ID 12或SEQ ID 13。
3.包括选自以下序列的至少7个连续氨基酸的片段的蛋白质:SEQ ID 1、SEQID 3、SEQ ID 4、SEQ ID 5、SEQ ID 7、SEQ ID 8、SEQ ID 9、SEQ ID 11、SEQ ID12或SEQ ID 13。
4.与权利要求1-3任一所述的蛋白质结合的抗体。
5.编码权利要求1-3任一所述的蛋白质的核酸。
6.含有SEQ ID 2、SEQ ID 6或SEQ ID 10的核酸。
7.含有与SEQ ID 2、SEQ ID 6或SEQ ID 10序列相同性高于50%的序列的核酸。
8.含有选自SEQ ID 2、SEQ ID 6或SEQ ID 10的至少10个连续核苷酸的片段的核酸。
9.一种组合物,其特征在于,所述的组合物含有权利要求1-3任一所述的蛋白质,权利要求4所述的抗体,和/或权利要求5-8任一所述的核酸。
10.如权利要求9所述的组合物,其特征在于,所述的组合物还含有一种或多种选自以下的免疫原性成分:
●WO99/57280公开的蛋白质或其免疫原性片段;
●WO99/36544公开的蛋白质或其免疫原性片段;
●WO99/24578公开的蛋白质或其免疫原性片段;
●WO97/28273公开的蛋白质或其免疫原性片段;
●WO96/29412公开的蛋白质或其免疫原性片段;
●WO95/03413公开的蛋白质或其免疫原性片段;
●WO99/31132公开的蛋白质或其免疫原性片段;
●抗脑膜炎奈瑟球菌血清群A的保护性抗原;
●抗脑膜炎奈瑟球菌血清群C的保护性抗原;
●抗脑膜炎奈瑟球菌血清群Y的保护性抗原;
●抗脑膜炎奈瑟球菌血清群W的保护性抗原;
●抗流感嗜血菌的保护性抗原;
●抗肺炎球菌的保护性抗原;
●抗白喉的保护性抗原;
●抗破伤风的保护性抗原;
●抗百日咳的保护性抗原;
●抗幽门螺旋杆菌的保护性抗原;
●抗脊髓灰质炎的保护性抗原;和/或
●抗乙型肝炎病毒的保护性抗原。
11.如权利要求9或10所述的组合物,其特征在于,所述的组合物用作药物。
12.如权利要求9或10所述的组合物,其特征在于,所述的组合物用作疫苗。
13.权利要求9或10所述的组合物在制备用于治疗或预防奈瑟球菌引起的感染的药物中的用途。
14.一种治疗患者的方法,该方法包括给予患者治疗有效量的权利要求9或10所述的组合物。
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Application Number | Priority Date | Filing Date | Title |
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GBGB9928197.4A GB9928197D0 (en) | 1999-11-29 | 1999-11-29 | 85kDA antigen |
GB9928197.4 | 1999-11-29 | ||
GB0005698.6 | 2000-03-09 | ||
GB0005698A GB0005698D0 (en) | 2000-03-09 | 2000-03-09 | 85kDa Antigen |
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CN1433471A true CN1433471A (zh) | 2003-07-30 |
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CN00818571A Pending CN1433471A (zh) | 1999-11-29 | 2000-11-28 | 85kgDa奈瑟球菌的抗原 |
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US (1) | US7700119B2 (zh) |
EP (2) | EP1234039A2 (zh) |
JP (2) | JP4840956B2 (zh) |
CN (1) | CN1433471A (zh) |
AT (1) | ATE460484T1 (zh) |
AU (1) | AU1875301A (zh) |
BR (1) | BR0015961A (zh) |
CA (1) | CA2390344C (zh) |
CY (1) | CY1110540T1 (zh) |
DE (1) | DE60044005D1 (zh) |
DK (1) | DK1741784T3 (zh) |
RU (1) | RU2002117308A (zh) |
WO (1) | WO2001038350A2 (zh) |
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WO2010109324A1 (en) | 2009-03-24 | 2010-09-30 | Novartis Ag | Combinations of meningococcal factor h binding protein and pneumococcal saccharide conjugates |
WO2010109323A1 (en) | 2009-03-24 | 2010-09-30 | Novartis Ag | Adjuvanting meningococcal factor h binding protein |
CA2772103A1 (en) | 2009-08-27 | 2011-03-03 | Novartis Ag | Adjuvant comprising aluminium, oligonucleotide and polycation |
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JP6446377B2 (ja) | 2013-03-08 | 2018-12-26 | ファイザー・インク | 免疫原性融合ポリペプチド |
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ES2070312T5 (es) * | 1988-12-19 | 2003-05-16 | American Cyanamid Co | Vacuna de proteina de membrana exterior meningococica de clase 1. |
GB9313045D0 (en) | 1993-06-24 | 1993-08-11 | Source Vision Technology The L | Printing and laminating |
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IL117483A (en) | 1995-03-17 | 2008-03-20 | Bernard Brodeur | MENINGITIDIS NEISSERIA shell protein is resistant to proteinase K. |
HUP9901039A2 (hu) * | 1996-02-01 | 1999-07-28 | North American Vaccine, Inc. | Neisseria meningitidis B-csoportba tartozó külső-membrán-fehérjéjének (MB3) expressziója élesztőben, továbbá vakcinák |
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WO1999036544A2 (en) | 1998-01-14 | 1999-07-22 | Chiron S.P.A. | Neisseria meningitidis antigens |
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CA2347849C (en) * | 1998-10-22 | 2013-06-25 | The University Of Montana | Omp85 proteins of neisseria gonorrhoeae and neisseria meningitidis, compositions containing same and methods of use thereof |
US6610306B2 (en) * | 1998-10-22 | 2003-08-26 | The University Of Montana | OMP85 protein of neisseria meningitidis, compositions containing the same and methods of use thereof |
ATE279943T1 (de) * | 1999-02-26 | 2004-11-15 | Chiron Srl | Verbesserung der bakterizidaktivität von neisseria antigenen mit cg enthaltende oligonukleotiden |
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2000
- 2000-11-28 WO PCT/IB2000/001851 patent/WO2001038350A2/en not_active Application Discontinuation
- 2000-11-28 BR BR0015961-1A patent/BR0015961A/pt not_active Application Discontinuation
- 2000-11-28 JP JP2001540113A patent/JP4840956B2/ja not_active Expired - Fee Related
- 2000-11-28 RU RU2002117308/13A patent/RU2002117308A/ru unknown
- 2000-11-28 EP EP00981520A patent/EP1234039A2/en not_active Withdrawn
- 2000-11-28 AU AU18753/01A patent/AU1875301A/en not_active Abandoned
- 2000-11-28 DK DK06076814.0T patent/DK1741784T3/da active
- 2000-11-28 EP EP06076814A patent/EP1741784B1/en not_active Expired - Lifetime
- 2000-11-28 AT AT06076814T patent/ATE460484T1/de not_active IP Right Cessation
- 2000-11-28 CA CA2390344A patent/CA2390344C/en not_active Expired - Fee Related
- 2000-11-28 CN CN00818571A patent/CN1433471A/zh active Pending
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EP1234039A2 (en) | 2002-08-28 |
JP2003514575A (ja) | 2003-04-22 |
US20060233827A1 (en) | 2006-10-19 |
US7700119B2 (en) | 2010-04-20 |
CA2390344C (en) | 2014-08-26 |
JP4840956B2 (ja) | 2011-12-21 |
AU1875301A (en) | 2001-06-04 |
EP1741784B1 (en) | 2010-03-10 |
CY1110540T1 (el) | 2015-04-29 |
BR0015961A (pt) | 2003-06-10 |
DE60044005D1 (de) | 2010-04-22 |
EP1741784A1 (en) | 2007-01-10 |
WO2001038350A2 (en) | 2001-05-31 |
JP2011055838A (ja) | 2011-03-24 |
ATE460484T1 (de) | 2010-03-15 |
WO2001038350A3 (en) | 2001-11-15 |
RU2002117308A (ru) | 2004-03-10 |
CA2390344A1 (en) | 2001-05-31 |
DK1741784T3 (da) | 2010-05-25 |
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