CN112342234B - 一种调控n-乙酰神经氨酸产量提高的重组枯草芽孢杆菌 - Google Patents

一种调控n-乙酰神经氨酸产量提高的重组枯草芽孢杆菌 Download PDF

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CN112342234B
CN112342234B CN202011165109.2A CN202011165109A CN112342234B CN 112342234 B CN112342234 B CN 112342234B CN 202011165109 A CN202011165109 A CN 202011165109A CN 112342234 B CN112342234 B CN 112342234B
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刘延峰
堵国成
曹燕亭
王惠好
卢杨
刘龙
李江华
陈坚
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Abstract

本发明公开了一种调控N‑乙酰神经氨酸产量提高的重组枯草芽孢杆菌,属于枯草芽孢杆菌代谢工程和基因工程技术领域。本发明所述重组枯草芽孢杆菌(Bacillus subtilis)是以低产N‑乙酰神经氨酸的重组枯草芽孢杆菌菌株作为出发菌株,通过正向响应N‑乙酰神经氨酸的生物传感器调控必需基因表达来偶联生长与合成,构建了一种细胞亚群调控回路,从而赋予高产细胞亚群生长优势,提高其在发酵过程中所占的比例,从而得到的一株高产N‑乙酰神经氨酸的重组菌株,其产量达到2.97g/l,是不进行细胞亚群调控的对照菌株的1.55倍。这为枯草芽孢杆菌代谢工程高效生产N‑乙酰神经氨酸奠定了基础。

Description

一种调控N-乙酰神经氨酸产量提高的重组枯草芽孢杆菌
技术领域
本发明涉及一种调控N-乙酰神经氨酸产量提高的重组枯草芽孢杆菌,属于枯草芽孢杆菌代谢工程和基因工程技术领域。
背景技术
枯草芽孢杆菌(Bacillus subtilis)在工业上应用十分广泛,在生产蛋白和高附加值化合物的生产上具有非常重要的地位。同时,它是一种非致病微生物,已经被美国食品和药物管理局(FDA)认可为安全的(GRAS)食品级微生物。此外,枯草芽孢杆菌具有许多优点,包括:细胞生长速率快,发酵培养时间短,培养条件要求低,易于进行代谢工程改造,分泌蛋白质能力强等。N-乙酰神经氨酸(NeuAc)又名唾液酸,燕窝酸,是一种重要的营养添加剂和药物中间体,在促进婴儿大脑发育,维持大脑健康和增强免疫力方面发挥着关键作用。
目前虽然在代谢工程改造中已有很多策略用于改善目标产物的生物合成,比如酶活性和表达水平优化、阻断竞争途径、中心代谢流重构等,但是这些策略都没有考虑到单细胞水平上生物合成能力的差异。随着单细胞检测技术的发展,研究表明由一个单克隆细胞发展而来的群体存在异质性,即在发酵过程中存在生产亚群、非生产亚群等。生产亚群因生产负担常常表现为降低的适应能力,然而,非生产亚群消耗营养物质却不能高效合成目标产物,可能将更多的营养物质用于生长,因此更加具有生长优势。因此,在发酵过程中,生产亚群会非生产细胞亚群所占的比例会逐步增加,从而占据整个生物反应器,降低产物合成的综合效率。目前还未有利用细胞自身的异质性改善枯草芽孢杆菌生物合成的先例。因此,此株高产NeuAc枯草芽孢杆菌菌株的构建不仅为高附加值化合物NeuAc发酵法大规模生产奠定了基础,还为枯草芽孢杆菌的代谢工程改造提供新的有效方法。
发明内容
本发明所要解决的技术问题是提供一种调控重组枯草芽孢杆菌N-乙酰神经氨酸产量提高的方法。本发明利用可以正向响应N-乙酰神经氨酸的生物传感器调控必需基因表达,构建一种细胞亚群调控回路,偶联生长与合成,从而赋予高产细胞亚群生长优势,提高其在发酵过程中所占的比例而提高NeuAc的产量。
本发明的第一个目的是提供细胞亚群调控回路,含有响应N-乙酰神经氨酸的生物传感器和必需基因;
所述响应N-乙酰神经氨酸的生物传感器包括:IPTG诱导型启动子Pgrac2、转录调控蛋白nanR的编码基因、整合有转录调控蛋白nanR结合序列的组成型启动子Pveg105、必需基因;所述IPTG诱导型启动子Pgrac2调控转录调控蛋白nanR表达;所述启动子Pveg105调控必需基因表达;所述启动子Pgrac2和Pveg105转录方向相反;
所述必需基因包括但不限于二氢蝶呤醛缩酶基因folB和SEDS家族肽聚糖糖基转移酶基因ftsW。
在一种实施方式中,所述细胞亚群调控回路还含有阻遏蛋白lac I表达框;所述阻遏蛋白lac I表达框的转录方向与启动子Pgrac2的转录方向相反。
在一种实施方式中,所述细胞亚群调控回路以pHT01为载体骨架。
在一种实施方式中,所述细胞亚群调控回路以pHT01为载体骨架,含有阻遏蛋白lac I表达框、IPTG诱导型启动子Pgrac2、RBS0、转录调控蛋白nanR的编码基因、整合有转录调控蛋白nanR结合序列的组成型启动子Pveg105、RBS1和必需基因folB;所述IPTG诱导型启动子Pgrac2和RBS0调控转录调控蛋白nanR表达;所述启动子Pveg105和RBS1调控必需基因folB表达;所述lac I表达框和启动子Pgrac2转录方向相反,启动子Pgrac2和Pveg105转录方向相对;调控转录调控蛋白nanR的编码基因和必须基因folB之间具有一个双向终止子。
在一种实施方式中,所述细胞亚群调控回路以pHT01为载体骨架,含有阻遏蛋白lac I表达框、IPTG诱导型启动子Pgrac2、RBS0、转录调控蛋白nanR的编码基因、整合有转录调控蛋白nanR结合序列的组成型启动子Pveg105,RBS1和必需基因ftsW;所述IPTG诱导型启动子Pgrac2和RBS0调控转录调控蛋白nanR表达;所述启动子Pveg105和RBS1调控必需基因ftsW表达;所述lac I表达框和启动子Pgrac2转录方向相反,启动子Pgrac2和Pveg105转录方向相对;调控转录调控蛋白nanR的编码基因和必须基因ftsW之间具有一个双向终止子。
在一种实施方式中,所述细胞亚群调控回路包括pHT01载体骨架、阻遏蛋白lac I表达框、IPTG诱导型启动子Pgrac2、RBS0、转录调控蛋白nanR的编码基因、整合有转录调控蛋白nanR结合序列的组成型启动子Pveg105、N端编码序列N1和必需基因ftsW;所述IPTG诱导型启动子Pgrac2和RBS0调控转录调控蛋白nanR表达;所述启动子Pveg105和必须基因ftsW之间依次设置RBS0和N端编码序列N1,所述启动子Pveg105、RBS0和N端编码序列N1调控必需基因ftsW表达;所述lac I表达框和启动子Pgrac2转录方向相反,启动子Pgrac2和Pveg105转录方向相对;调控转录调控蛋白nanR的编码基因和必须基因ftsW之间具有一个双向终止子。
在一种实施方式中,pHT01载体骨架的碱基序列如SEQ ID NO.1所示。
在一种实施方式中,所述lac I表达框的核苷酸序列如SEQ ID NO.3所示。
在一种实施方式中,所述IPTG诱导型启动子Pgrac2的核苷酸序列如SEQ ID NO.2所示,RBS0的核苷酸序列如SEQ ID NO.4所示;编码转录调控蛋白nanR的基因序列如SEQ IDNO.5所示。
在一种实施方式中,启动子Pveg105的核苷酸序列如SEQ ID NO.7所示;RBS1的碱基序列如SEQ ID NO.8所示。
在一种实施方式中,必需基因folB的核苷酸序列如SEQ ID NO.9所示。
在一种实施方式中,必需基因ftsW的核苷酸序列如SEQ ID NO.10所示。
在一种实施方式中,必需基因folB的N端序列N1如SEQ ID NO.11所示
本发明的第二个目的是提供一种调控重组枯草芽孢杆菌提高N-乙酰神经氨酸产量的方法,是通过细胞亚群调控回路将受调控的细胞的生长和产物合成偶联,促进生产细胞亚群,抑制非生产细胞亚群。
在一种实施方式中,所述方法通过缺失所述重组枯草芽孢杆菌的必需基因folB或ftsW,再将所述细胞亚群调控回路转化至枯草芽孢杆菌细胞中。
在一种实施方式中,所述重组枯草芽孢杆菌以低产N-乙酰神经氨酸的重组菌株BgG-N abrB-30bp作为出发菌株,所述重组菌株BgG-N abrB-30bp的构建方法公开于TianR,Liu Y,Chen J,et al.Synthetic N-terminal coding sequences for fine-tuninggene expression and metabolic engineering in Bacillus subtilis.Metab Eng.中。
本发明的第三个目的是提供含有所述细胞亚群调控回路的重组枯草芽孢杆菌。
本发明还要求保护所述细胞亚群调控回路或所述重组枯草芽孢杆菌在N-乙酰神经氨酸的生产中的应用。
有益效果:本发明构建了一种细胞亚群调控回路,通过正向响应N-乙酰神经氨酸的生物传感器调控必需基因表达来偶联生长与合成,从而赋予高产细胞亚群生长优势,提高其在发酵过程中所占的比例,从而得到的一株高产N-乙酰神经氨酸的重组菌株,其产量可达到2.97g/l,是不进行细胞亚群调控的对照菌株的1.55倍。
附图说明
图1为细胞亚群调控回路结构示意图。
图2为细胞亚群调控回路生长与合成偶联的效果。
具体实施方式
重组枯草芽孢杆菌种子培养及发酵:
种子液培养基配方为:10g/L胰蛋白胨,10g/L氯化钠,5g/L酵母粉;发酵培养基配方为:40g/L葡萄糖,12g/L酵母粉,6g/L胰蛋白胨,6g/L硫酸铵,12g/L三水合磷酸氢二钾,2.5g/L磷酸二氢钾,3g/L硫酸镁,6g/L尿素;
发酵过程为:挑取单菌落至有1.5ml发酵培养基(含有合适的抗生素,实验组根据需要添加0.1mM的IPTG或者2g/l NeuAc,对照组不添加IPTG)的24孔板中,于37℃、220rpm发酵60小时。
样品检测方法:首先,将发酵液离心后取上清,加入两倍体积35mM稀硫酸去除胞外蛋白。之后,使用离心机在1400rpm离心10min后,用0.22μm滤膜过滤后,使用液相色谱column(300×7.8mm)有机酸柱,检测波长为210nm。流动相采用10mM稀硫酸,流速为0.5mL/min柱温为40摄氏度。
实施例1细胞亚群调控回路1.1质粒构建
(1)以质粒pHT01-grac2序列(如SEQ ID NO.12)作为模板,以fp-HI2G-8k-f和fp-HI2G-8k-r为引物,PCR扩增获得带有lac I表达框和IPTG诱导型启动子Pgrac2的pHT01载体骨架;
fp-HI2G-8k-r:GTGTACATTTCACCTCCTTTGGGGTTG;
fp-HI2G-8k-f:TTCACGTCACGCGTCCATGGAGATCTTTG;
(2)以响应N-乙酰神经氨酸的生物传感器质粒Bbl-veg105(如SEQ ID NO.13)作为模板,以HI2Vfol-0.4k-2f和HI2Vfol-0.4k-2r为引物,PCR扩增获得有nanR结合位点的启动子Pveg105片段;
HI2Vfol-0.4k-1f:AAACGATATACCTTTATACCTGTTATACCATTGTACAACACGAGC;
HI2Vfol-0.4k-1r:
CAAAGATCTCCATGGACGCGTGACGTGAAGTTTCGTGCCGGTGAACTACTCG;
(3)以HI2Vfol-0.4k-2f和HI2Vfol-0.4k-2r为引物,对野生型枯草芽孢杆菌168进行菌落PCR,扩增获得SEQ ID NO.9所示的必需基因folB片段;
HI2Vfol-0.4k-2f:
CCTCTGCAGGTTTTTTCTGGCTCCATCATGACTTTTTTCTCGTAATTTCAATTGCTACTGAT;
HI2Vfol-0.4k-2r:
TGGTATAACAGGTATAAAGGTATATCGTTTGGAGAGCTAGCCTATGGATAAAGTTTATGTAGAAGGTATGGAGTTTTACGGA;
(4)以响应N-乙酰神经氨酸的生物传感器质粒Bbl-veg105序列(如SEQ ID NO.11)作为模板,以HI2Vfol-1k-3f和HI2Vfol-1k-3r为引物,PCR扩增获得SEQ ID NO.5所示的编码nanR蛋白的基因片段;
HI2Vfol-1k-3f:
CAACCCCAAAGGAGGTGAAATGTACACATGGGCCTTATGAACGCATTTGATTC;
HI2Vfol-1k-3r:TGGAGCCAGAAAAAACCTGCAGAGG;
将上述4个片段纯化回收,利用Gibson Assembly Clonging Kit(New EnglandBiolabs)进行连接,构建细胞亚群调控回路1.1,待平板上长出转化子后,通过菌落PCR和测序,确认其构建成功。在构建好的细胞亚群调控回路1.1中,IPTG诱导型启动子Pgrac2和RBS0调控转录调控蛋白nanR表达;启动子Pveg105和RBS1调控必需基因folB表达;lac I表达框和启动子Pgrac2转录方向相反,启动子Pgrac2和Pveg105转录方向相对。
实施例2细胞亚群调控回路1.2质粒构建
(1)以质粒pHT01-grac2(如SEQ ID NO.12)作为模板,以fp-HI2G-8k-f和fp-HI2G-8k-r为引物,PCR扩增带有lac I表达框和IPTG诱导型启动子Pgrac2的pHT01载体骨架;
fp-HI2G-8k-r:GTGTACATTTCACCTCCTTTGGGGTTG;
fp-HI2G-8k-f:TTCACGTCACGCGTCCATGGAGATCTTTG;
(2)以响应N-乙酰神经氨酸的生物传感器质粒Bbl-veg105序列(如SEQ ID NO.13)作为模板,以HI2Vfol-0.4k-1f和HI2Vfol-0.4k-1fr为引物PCR扩增获得含有nanR结合位点的启动子veg105片段(如SEQ ID NO.7所示);
HI2Vfol-0.4k-1f:AAACGATATACCTTTATACCTGTTATACCATTGTACAACACGAGC;
HI2Vfol-0.4k-1r:
CAAAGATCTCCATGGACGCGTGACGTGAAGTTTCGTGCCGGTGAACTACTCG;
(3)以HI2VftsW-1.2-2f和HI2VftsW-1.2-2r为引物,对野生型枯草芽孢杆菌168进行菌落PCR,扩增获得SEQ ID NO.10所示的必需基因ftsW片段;
HI2VftsW-1.2-2f:
CCTCTGCAGGTTTTTTCTGGCTCCATTACAGATAAACAGTTTTTTTGAGCTGTTTCTTTTTCATTCCCT;
HI2VftsW-1.2-2r:
GGTATAACAGGTATAAAGGTATATCGTTTGGAGAGCTAGCCTATGTTAAAAAAAATGCTAAAATCTTATGATTACTCACTGATATTCGCA;
(4)以响应N-乙酰神经氨酸的生物传感器质粒Bbl-veg105序列(如SEQ ID NO.13)作为模板,以HI2Vfol-1k-3f和HI2Vfol-1k-3r为引物,PCR扩增获得SEQ ID NO.5所示的编码nanR蛋白的基因片段;
HI2Vfol-1k-3f:
CAACCCCAAAGGAGGTGAAATGTACACATGGGCCTTATGAACGCATTTGATTC;
HI2Vfol-1k-3r:TGGAGCCAGAAAAAACCTGCAGAGG;
将上述4个片段纯化回收,利用Gibson Assembly Clonging Kit(New EnglandBiolabs)进行连接,构建细胞亚群调控回路1.2,待平板上长出转化子后,通过菌落PCR和测序,确认其构建成功。在构建好的细胞亚群调控回路1.1中,IPTG诱导型启动子Pgrac2和RBS0调控转录调控蛋白nanR表达;启动子Pveg105和RBS1调控必需基因ftsW表达;lac I表达框和启动子Pgrac2转录方向相反,启动子Pgrac2和Pveg105转录方向相对。
实施例3细胞亚群调控回路1.3质粒构建
2HI2VftsW-N4-10f:
ACGAGTTCAATGACAACGCGATCACCTAATGGCTTTAACAAAGGCTAGCCTCCTAAACGATATACCTTTATACCTGTTATACCATTGTAC;
2HI2VftsW-N4-10r:
ATCGCGTTGTCATTGAACTCGTAGAATTAAAAAAAATGCTAAAATCTTATGATTACTCACTGATATTCGCA;
以实施例2获得的测序正确的质粒作为模板,以2HI2VftsW-N4-10f和2HI2VftsW-N4-10r为引物,PCR扩增细胞亚群调控回路1.3,纯化后直接转入大肠杆菌JM109,待平板上长出转化子后,通过菌落PCR和测序,确认其构建成功。
在构建好的细胞亚群调控回路1.3中,IPTG诱导型启动子Pgrac2和RBS0调控转录调控蛋白nanR表达;启动子Pveg105、RBS0和N端编码序列N1调控必需基因ftsW表达;lac I表达框和启动子Pgrac2转录方向相反,启动子Pgrac2和Pveg105转录方向相对。
实施例4构建敲除基因组上必需基因拷贝的敲除框
1、构建fol敲除框
(1)利用引物qc-folB-1.2k-1f和qc-folB-1.2k-1r对野生型枯草芽孢杆菌168进行菌落PCR,扩增获得fol1片段;
qc-folB-1.2k-1f:AGCTAGAAGCTCTCTTGACAGCT;
qc-folB-1.2k-1r:
GTTTCCTGTGTGAAATTGTTATCCGCTCTTGCTTAAATCCAGCTCAGCGGT;
(2)以质粒P7S6为模板,以3p7s6-1.3f和3p7s6-1.3r为引物,PCR扩增获得fol2片段
3p7s6-1.3f:GAGCGGATAACAATTTCACACAGGAAAC;
3p7s6-1.3r:TAACGCCAGGGTTTTCCCAGTC;
(3)以qc-folB-1.2k-3f和qc-folB-1.2k-3r为引物,对野生型枯草芽孢杆菌进行菌落PCR,扩增获得fol3片段。
qc-folB-1.2k-3f:
GACTGGGAAAACCCTGGCGTTAACCTTGAGCAAACGATCAACTATGCT;
qc-folB-1.2k-3r:CTCCCGCATCGCATTTTGTAATCT;
(4)纯化fol1、fol2和fol3片段,最后通过融合PCR的方式,将三个片段融合后扩增,构建fol敲除框。
2、构建fts敲除框
(1)以qc-FtsW-1k-1f和qc-FtsW-1k-1r为引物,对野生型枯草芽孢杆菌进行菌落PCR,扩增获得fts1片段;
qc-FtsW-1k-1f:GGAAGTGGCTGAATCTGAATACAGCACTTCAATGA;
2qc-FtsW-1k-1r:CGCTCAACATCCTCTTCCCTGCTTCTAACTTCCATTATCT;
(2)以质粒P7S6为模板,以qc-FtsW-1.3-2f和qc-FtsW-1.3-2r为引物,PCR扩增获得fts2片段;
qc-FtsW-1.3-2f:
AGTTAGAAGCAGGGAAGAGGATGTTGAGCGGATAACAATTTCACACAGGAAACAGC;
qc-FtsW-1.3-2r:
GGATGGCAATCATGCTTGAAATGTAACGCCAGGGTTTTCCCAGTCACGAC;
(3)以2qc-FtsW-1.1k-3f和2qc-FtsW-1.1k-3r为引物,对野生型枯草芽孢杆菌168进行菌落PCR,扩增获得fts3片段。
2qc-FtsW-1.1k-3f:CTGGCGTTACATTTCAAGCATGATTGCCATCCAGTCGT;
qc-FtsW-1.1k-3r:CCTCACAAATTTGGTCCCTTAATTCAGGTGACAG;
(4)纯化fts1、fts2和fts3片段,最后通过融合PCR的方式,将三个片段融合后扩增,构建fts敲除框。
实施例5细胞亚群调控回路对菌株生长与合成的偶联调控
(1)利用引物cr-nanT-1.3k-1f和cr-nanT-1.3k-1r对枯草芽孢杆菌BgG-N abrB-30b(构建方法公开于论文《Synthetic N-terminal coding sequences for fine-tuninggene expression and metabolic engineering in Bacillus subtilis》中)进行菌落PCR,扩增获得nanT1片段;
cr-nanT-1.3k-1f:gagtacttaaacacaaatcgtgacggct;
cr-nanT-1.3k-1r:tgtttcctgtgtgaaattgttatccgctcaagctgtccggcaacatcag;
(2)以质粒P7ZP43(序列如:如SEQ ID NO.14)为模板,以p7ZP43-1.5f和p7ZP43-1.5r为引物,PCR扩增获得nanT2片段;
p7ZP43-1.5f:gagcggataacaatttcacacaggaaaca;
p7ZP43-1.5r:gtgtacattcctctcttacctataatggtaccg;
(3)以cr-nanT-1.5k-3f和cr-nanT-1.5k-3r为引物,对大肠杆菌进行菌落PCR,扩增获得nanT3片段。
cr-nanT-1.5k-3f:cggtaccattataggtaagagaggaatgtacacatgagtactacaacccagaatatcccgt;
cr-nanT-1.5k-3r:
cgggatttcccggcagtctgacaagttattctgcaatagacacttttccttaacttttggttttgactaaatcgtttttggcg;
(4)以cr-nanT-1.3k-4f和cr-nanT-1.3k-4r为引物,对枯草芽孢杆菌BgG-N abrB-30bp进行菌落PCR,扩增获得nanT4片段。
cr-nanT-1.3k-4f:gaataacttgtcagactgccgggaaatcccggcagtcttttttccattgcctgcaagcttttccagct;
cr-nanT-1.3k-4r:acactcgtagccatcctagttatcact;
(5)纯化nanT1、nanT2、nanT3和nanT4片段,最后通过融合PCR的方式,将四个片段融合后扩增,构建nanT整合框,随后将其转入枯草芽孢杆菌BgG-N abrB-30bp,获得重组枯草芽孢杆菌BgG-N abrB-30bp-nanT。
将实施例1构建的细胞亚群调控回路1.1质粒转入BgG-N abrB-30bp-nanT中,然后利用fol敲除框将其基因组上的必需基因folB拷贝敲除,构建含有细胞亚群调控回路1.1的重组枯草芽孢杆菌细胞;
将细胞亚群调控回路1.2质粒和1.3质粒分别转入异源表达nanT的枯草芽孢杆菌BgG-N abrB-30bp,然后利用fts敲除框将其基因组上的必需基因ftsW拷贝敲除,构建含有细胞亚群调控回路1.2或1.3的重组枯草芽孢杆菌细胞。
挑取带有细胞亚群调控回路1.1、1.2或1.3的重组枯草芽孢杆菌的单菌落于有1.5ml发酵培养基的24孔板中,于37℃、220rpm发酵48小时,监测菌株生长,检测生长与合成偶联效果。两个实验组:一个实验组在培养基中添加0.1mM IPTG,一个实验组在培养基中添加0.1mM IPTG和2g/l NeuAc;一个对照组:不添加IPTG。因为枯草芽孢杆菌自身不能将胞外的N-乙酰神经氨酸转运进胞内,所以在验证偶联效果时异源表达了来源于大肠杆菌的转运蛋白nanT。结果如图2所示,添加IPTG后,在不添加N-乙酰神经氨酸的环境中细胞生长受到抑制,添加N-乙酰神经氨酸可以使细胞恢复生长,这表明细胞生长与N-乙酰神经氨酸的合成成功偶联,细胞亚群调控回路可以赋予生产细胞亚群生长优势。
实施例6细胞亚群调控对NeuAc合成的影响
将实施例1构建的细胞亚群调控回路1.1质粒转入枯草芽孢杆菌BgG-N abrB-30bp(构建方法公开于论文《Synthetic N-terminal coding sequences for fine-tuninggene expression and metabolic engineering in Bacillus subtilis》中),然后利用实施例5构建的fol敲除框将其基因组上的必需基因folB拷贝敲除,构建含有细胞亚群调控回路1.1的重组枯草芽孢杆菌;将细胞亚群调控回路1.2质粒和1.3质粒分别转入枯草芽孢杆菌BgG-N abrB-30bp,然后利用fts敲除框将其基因组上的必需基因ftsW拷贝敲除,构建含有细胞亚群调控回路1.2或1.3的重组枯草芽孢杆菌。随后挑取带有细胞亚群调控回路1.1、1.2和1.3的单菌落于有1.5ml发酵培养基(添加有终浓度为0.1mM的IPTG)的24孔板中,于37℃、220rpm发酵60小时。以不添加IPTG作为对照。
表1细胞亚群调控回路对NeuAc合成的影响
Figure BDA0002745537180000081
结果显示,利用生物传感器调控必需基因表达后,不进行细胞亚群调控的对照菌对应的NeuAc的产量约为1.9g/L,经过细胞亚群调控的NeuAc产量可提高至2.70~2.97g/L。
虽然本发明已以较佳实施例公开如上,但其并非用以限定本发明,任何熟悉此技术的人,在不脱离本发明的精神和范围内,都可做各种的改动与修饰,因此本发明的保护范围应该以权利要求书所界定的为准。
SEQUENCE LISTING
<110> 江南大学
<120> 一种调控N-乙酰神经氨酸产量提高的重组枯草芽孢杆菌
<130> BAA200085A
<160> 14
<170> PatentIn version 3.3
<210> 1
<211> 6315
<212> DNA
<213> 人工序列
<400> 1
tccatggaga tctttgtctg caactgaaaa gtttatacct tacctggaac aaatggttga 60
aacatacgag gctaatatcg gcttattagg aatagtccct gtactaataa aatcaggtgg 120
atcagttgat cagtatattt tggacgaagc tcggaaagaa tttggagatg acttgcttaa 180
ttccacaatt aaattaaggg aaagaataaa gcgatttgat gttcaaggaa tcacggaaga 240
agatactcat gataaagaag ctctaaaact attcaataac cttacaatgg aattgatcga 300
aagggtggaa ggttaatggt acgaaaatta ggggatctac ctagaaagcc acaaggcgat 360
aggtcaagct taaagaaccc ttacatggat cttacagatt ctgaaagtaa agaaacaaca 420
gaggttaaac aaacagaacc aaaaagaaaa aaagcattgt tgaaaacaat gaaagttgat 480
gtttcaatcc ataataagat taaatcgctg cacgaaattc tggcagcatc cgaagggaat 540
tcatattact tagaggatac tattgagaga gctattgata agatggttga gacattacct 600
gagagccaaa aaacttttta tgaatatgaa ttaaaaaaaa gaaccaacaa aggctgagac 660
agactccaaa cgagtctgtt tttttaaaaa aaatattagg agcattgaat atatattaga 720
gaattaagaa agacatggga ataaaaatat tttaaatcca gtaaaaatat gataagatta 780
tttcagaata tgaagaactc tgtttgtttt tgatgaaaaa acaaacaaaa aaaatccacc 840
taacggaatc tcaatttaac taacagcggc caaactgaga agttaaattt gagaagggga 900
aaaggcggat ttatacttgt atttaactat ctccatttta acattttatt aaaccccata 960
caagtgaaaa tcctctttta cactgttcct ttaggtgatc gcggagggac attatgagtg 1020
aagtaaacct aaaaggaaat acagatgaat tagtgtatta tcgacagcaa accactggaa 1080
ataaaatcgc caggaagaga atcaaaaaag ggaaagaaga agtttattat gttgctgaaa 1140
cggaagagaa gatatggaca gaagagcaaa taaaaaactt ttctttagac aaatttggta 1200
cgcatatacc ttacatagaa ggtcattata caatcttaaa taattacttc tttgattttt 1260
ggggctattt tttaggtgct gaaggaattg cgctctatgc tcacctaact cgttatgcat 1320
acggcagcaa agacttttgc tttcctagtc tacaaacaat cgctaaaaaa atggacaaga 1380
ctcctgttac agttagaggc tacttgaaac tgcttgaaag gtacggtttt atttggaagg 1440
taaacgtccg taataaaacc aaggataaca cagaggaatc cccgattttt aagattagac 1500
gtaaggttcc tttgctttca gaagaacttt taaatggaaa ccctaatatt gaaattccag 1560
atgacgagga agcacatgta aagaaggctt taaaaaagga aaaagagggt cttccaaagg 1620
ttttgaaaaa agagcacgat gaatttgtta aaaaaatgat ggatgagtca gaaacaatta 1680
atattccaga ggccttacaa tatgacacaa tgtatgaaga tatactcagt aaaggagaaa 1740
ttcgaaaaga aatcaaaaaa caaataccta atcctacaac atcttttgag agtatatcaa 1800
tgacaactga agaggaaaaa gtcgacagta ctttaaaaag cgaaatgcaa aatcgtgtct 1860
ctaagccttc ttttgatacc tggtttaaaa acactaagat caaaattgaa aataaaaatt 1920
gtttattact tgtaccgagt gaatttgcat ttgaatggat taagaaaaga tatttagaaa 1980
caattaaaac agtccttgaa gaagctggat atgttttcga aaaaatcgaa ctaagaaaag 2040
tgcaataaac tgctgaagta tttcagcagt tttttttatt tagaaatagt gaaaaaaata 2100
taatcaggga ggtatcaata tttaatgagt actgatttaa atttatttag actggaatta 2160
ataattaaca cgtagactaa ttaaaattta atgagggata aagaggatac aaaaatatta 2220
atttcaatcc ctattaaatt ttaacaaggg ggggattaaa atttaattag aggtttatcc 2280
acaagaaaag accctaataa aatttttact agggttataa cactgattaa tttcttaatg 2340
ggggagggat taaaatttaa tgacaaagaa aacaatcttt taagaaaagc ttttaaaaga 2400
taataataaa aagagctttg cgattaagca aaactcttta ctttttcatt gacattatca 2460
aattcatcga tttcaaattg ttgttgtatc ataaagttaa ttctgttttg cacaaccttt 2520
tcaggaatat aaaacacatc tgaggcttgt tttataaact cagggtcgct aaagtcaatg 2580
taacgtagca tatgatatgg tatagcttcc acccaagtta gcctttctgc ttcttctgaa 2640
tgtttttcat atacttccat gggtatctct aaatgatttt cctcatgtag caaggtatga 2700
gcaaaaagtt tatggaattg atagttcctc tctttttctt caactttttt atctaaaaca 2760
aacactttaa catctgagtc aatgtaagca taagatgttt ttccagtcat aatttcaatc 2820
ccaaatcttt tagacagaaa ttctggacgt aaatcttttg gtgaaagaat ttttttatgt 2880
agcaatatat ccgatacagc accttctaaa agcgttggtg aatagggcat tttacctatc 2940
tcctctcatt ttgtggaata aaaatagtca tattcgtcca tctacctatc ctattatcga 3000
acagttgaac tttttaatca aggatcagtc ctttttttca ttattcttaa actgtgctct 3060
taactttaac aactcgattt gtttttccag atctcgaggg taactagcct cgccgatccc 3120
gcaagaggcc cggcagtcag gtggcacttt tcggggaaat gtgcgcggaa cccctatttg 3180
tttatttttc taaatacatt caaatatgta tccgctcatg agacaataac cctgataaat 3240
gcttcaataa tattgaaaaa ggaagagtat gagtattcaa catttccgtg tcgcccttat 3300
tccctttttt gcggcatttt gccttcctgt ttttgctcac ccagaaacgc tggtgaaagt 3360
aaaagatgct gaagatcagt tgggtgcacg agtgggttac atcgaactgg atctcaacag 3420
cggtaagatc cttgagagtt ttcgccccga agaacgtttt ccaatgatga gcacttttaa 3480
agttctgcta tgtggcgcgg tattatcccg tattgacgcc gggcaagagc aactcggtcg 3540
ccgcatacac tattctcaga atgacttggt tgagtactca ccagtcacag aaaagcatct 3600
tacggatggc atgacagtaa gagaattatg cagtgctgcc ataaccatga gtgataacac 3660
tgcggccaac ttacttctga caacgatcgg aggaccgaag gagctaaccg cttttttgca 3720
caacatgggg gatcatgtaa ctcgccttga tcgttgggaa ccggagctga atgaagccat 3780
accaaacgac gagcgtgaca ccacgatgcc tgtagcaatg gcaacaacgt tgcgcaaact 3840
attaactggc gaactactta ctctagcttc ccggcaacaa ttaatagact ggatggaggc 3900
ggataaagtt gcaggaccac ttctgcgctc ggcccttccg gctggctggt ttattgctga 3960
taaatctgga gccggtgagc gtgggtctcg cggtatcatt gcagcactgg ggccagatgg 4020
taagccctcc cgtatcgtag ttatctacac gacggggagt caggcaacta tggatgaacg 4080
aaatagacag atcgctgaga taggtgcctc actgattaag cattggtaac tgtcagacca 4140
agtttactca tatatacttt agattgattt aaaacttcat ttttaattta aaaggatcta 4200
ggtgaagatc ctttttgata atctcatgac caaaatccct taacgtgagt tttcgttcca 4260
ctgagcgtca gaccccgtag aaaagatcaa aggatcttct tgagatcctt tttttctgcg 4320
cgtaatctgc tgcttgcaaa caaaaaaacc accgctacca gcggtggttt gtttgccgga 4380
tcaagagcta ccaactcttt ttccgaaggt aactggcttc agcagagcgc agataccaaa 4440
tactgtcctt ctagtgtagc cgtagttagg ccaccacttc aagaactctg tagcaccgcc 4500
tacatacctc gctctgctaa tcctgttacc agtggctgct gccagtggcg ataagtcgtg 4560
tcttaccggg ttggactcaa gacgatagtt accggataag gcgcagcggt cgggctgaac 4620
ggggggttcg tgcacacagc ccagcttgga gcgaacgacc tacaccgaac tgagatacct 4680
acagcgtgag ctatgagaaa gcgccacgct tcccgaaggg agaaaggcgg acaggtatcc 4740
ggtaagcggc agggtcggaa caggagagcg cacgagggag cttccagggg gaaacgcctg 4800
gtatctttat agtcctgtcg ggtttcgcca cctctgactt gagcgtcgat ttttgtgatg 4860
ctcgtcaggg gggcggagcc tatggaaaaa cgccagcaac gcggcctttt tacggttcct 4920
ggccttttgc tggccttttg ctcacatgtt ctttcctgcg ttatcccctg attctgtgga 4980
taaccgtatt accgcctttg agtgagctga taccgctcgc cgcagccgaa cgaccgagcg 5040
cagcgagtca gtgagcgagg aagcggaaga gcgcccaata cgcatgctta agttattggt 5100
atgactggtt ttaagcgcaa aaaaagttgc tttttcgtac ctattaatgt atcgttttag 5160
aaaaccgact gtaaaaagta cagtcggcat tatctcatat tataaaagcc agtcattagg 5220
cctatctgac aattcctgaa tagagttcat aaacaatcct gcatgataac catcacaaac 5280
agaatgatgt acctgtaaag atagcggtaa atatattgaa ttacctttat taatgaattt 5340
tcctgctgta ataatgggta gaaggtaatt actattatta ttgatattta agttaaaccc 5400
agtaaatgaa gtccatggaa taatagaaag agaaaaagca ttttcaggta taggtgtttt 5460
gggaaacaat ttccccgaac cattatattt ctctacatca gaaaggtata aatcataaaa 5520
ctctttgaag tcattcttta caggagtcca aataccagag aatgttttag atacaccatc 5580
aaaaattgta taaagtggct ctaacttatc ccaataacct aactctccgt cgctattgta 5640
accagttcta aaagctgtat ttgagtttat cacccttgtc actaagaaaa taaatgcagg 5700
gtaaaattta tatccttctt gttttatgtt tcggtataaa acactaatat caatttctgt 5760
ggttatacta aaagtcgttt gttggttcaa ataatgatta aatatctctt ttctcttcca 5820
attgtctaaa tcaattttat taaagttcat ttgatatgcc tcctaaattt ttatctaaag 5880
tgaatttagg aggcttactt gtctgctttc ttcattagaa tcaatccttt tttaaaagtc 5940
aatattactg taacataaat atatatttta aaaatatccc actttatcca attttcgttt 6000
gttgaactaa tgggtgcttt agttgaagaa taaaagacca cattaaaaaa tgtggtcttt 6060
tgtgtttttt taaaggattt gagcgtagcg aaaaatcctt ttctttctta tcttgataat 6120
aagggtaact attgccgatc gtccattccg acagcatcgc cagtcactat ggcgtgctgc 6180
tagcgccatt cgccattcag gctgcgcaac tgttgggaag ggcgatcggt gcgggcctct 6240
tcgctattac gccagctggc gaaaggggga tgtgctgcaa ggcgattaag ttgggtaacg 6300
ccagggtttt cccag 6315
<210> 2
<211> 154
<212> DNA
<213> 人工序列
<400> 2
gaaaagaatg atgtaagcgt gaaaaatttt ttaaaaaatc tcttgacatt ggaagggaga 60
tatgttatta taagaattgc ggaattgtga gcggataaca attcataatt gtgagcggat 120
aacaattcaa ccccaaagga ggtgaaatgt acac 154
<210> 3
<211> 1523
<212> DNA
<213> 人工序列
<400> 3
cgctcccttt tccgttagct ttttcacccc cgtaccgatt atgttacaat agctggtacc 60
aagctaattc cggtggaaac gaggtcatca tttccttccg aaaaaacggt tgcatttaaa 120
tcttacatat gtaatacttt caaagactac atttgtaaga tttgatgttt gagtcggctg 180
aaagatcgta cgtaccaatt attgtttcgt gattgttcaa gccataacac tgtagggata 240
gtggaaagag tgcttcatct ggttacgatc aatcaaatat tcaaacggag ggagacgatt 300
ttgatgaaac cagtaacgtt atacgatgtc gcagagtatg ccggtgtctc ttatcagacc 360
gtttcccgcg tggtgaacca ggccagccac gtttctgcga aaacgcggga aaaagtggaa 420
gcggcgatgg cggagctgaa ttacattccc aaccgcgtgg cacaacaact ggcgggcaaa 480
cagtcgttgc tgattggcgt tgccacctcc agtctggccc tgcacgcgcc gtcgcaaatt 540
gtcgcggcga ttaaatctcg cgccgatcaa ctgggtgcca gcgtggtggt gtcgatggta 600
gaacgaagcg gcgtcgaagc ctgtaaaacg gcggtgcaca atcttctcgc gcaacgcgtc 660
agtgggctga tcattaacta tccgctggat gaccaggatg ccattgctgt ggaagctgcc 720
tgcactaatg ttccggcgtt atttcttgat gtctctgacc agacacccat caacagtatt 780
attttctccc atgaagacgg tacgcgactg ggcgtggagc atctggtcgc attgggtcac 840
cagcaaatcg cgctgttagc gggcccatta agttctgtct cggcgcgtct gcgtctggct 900
ggctggcata aatatctcac tcgcaatcaa attcagccga tagcggaacg ggaaggcgac 960
tggagtgcca tgtccggttt tcaacaaacc atgcaaatgc tgaatgaggg catcgttccc 1020
actgcgatgc tggttgccaa cgatcagatg gcgctgggcg caatgcgcgc cattaccgag 1080
tccgggctgc gcgttggtgc ggatatctcg gtagtgggat acgacgatac cgaagacagc 1140
tcatgttata tcccgccgtt aaccaccatc aaacaggatt ttcgcctgct ggggcaaacc 1200
agcgtggacc gcttgctgca actctctcag ggccaggcgg tgaagggcaa tcagctgttg 1260
cccgtctcac tggtgaaaag aaaaaccacc ctggcgccca atacgcaaac cgcctctccc 1320
cgcgcgttgg ccgattcatt aatgcagctg gcacgacagg tttcccgact ggaaagcggg 1380
cagtgagcgc aacgcaatta atgtgagtta aggcctgagc tccgccctgc cactttagtg 1440
aagcagatcg cattataagc tttctgtatg gggtgttttt attacaaaac gcctgcgcaa 1500
taacgcaggc gttctgtgac att 1523
<210> 4
<211> 20
<212> DNA
<213> 人工序列
<400> 4
aaaggaggtg aaatgtacac 20
<210> 5
<211> 792
<212> DNA
<213> 人工序列
<400> 5
atgggcctta tgaacgcatt tgattcgcaa accgaagatt cttcacctgc aattggtcgc 60
aacttgcgta gccgcccgct ggcgcgtaaa aaactctccg aaatggtgga agaagagctg 120
gaacagatga tccgccgtcg tgaatttggc gaaggtgaac aattaccgtc tgaacgcgaa 180
ctgatggcgt tctttaacgt cgggcgtcct tcggtgcgtg aagcgctggc agcgttaaaa 240
cgcaaaggtc tggtgcaaat aaacaacggc gaacgcgctc gcgtctcgcg tccttctgcg 300
gacactatca tcggtgagct ttccggcatg gcgaaagatt tcctttctca tcccggtggg 360
attgcccatt tcgaacaatt acgtctgttc tttgaatcca gtctggtgcg ctatgcggct 420
gaacatgcca ccgatgagca aatcgatttg ctggcaaaag cactggaaat caacagtcag 480
tcgctggata acaacgcggc attcattcgt tcagacgttg atttccaccg cgtgctggcg 540
gagatccccg gtaacccaat cttcatggcg atccacgttg ccctgctcga ctggcttatt 600
gccgcacgcc caacggttac cgatcaggca ctgcacgaac ataacaacgt tagttatcaa 660
cagcatattg cgatcgttga tgcgatccgc cgtcatgatc ctgacgaagc cgatcgtgcg 720
ttgcaatcgc atctcaacag cgtctctgct acctggcacg ctttcggtca gaccaccaac 780
aaaaagaaat aa 792
<210> 6
<211> 263
<212> PRT
<213> 人工序列
<400> 6
Met Gly Leu Met Asn Ala Phe Asp Ser Gln Thr Glu Asp Ser Ser Pro
1 5 10 15
Ala Ile Gly Arg Asn Leu Arg Ser Arg Pro Leu Ala Arg Lys Lys Leu
20 25 30
Ser Glu Met Val Glu Glu Glu Leu Glu Gln Met Ile Arg Arg Arg Glu
35 40 45
Phe Gly Glu Gly Glu Gln Leu Pro Ser Glu Arg Glu Leu Met Ala Phe
50 55 60
Phe Asn Val Gly Arg Pro Ser Val Arg Glu Ala Leu Ala Ala Leu Lys
65 70 75 80
Arg Lys Gly Leu Val Gln Ile Asn Asn Gly Glu Arg Ala Arg Val Ser
85 90 95
Arg Pro Ser Ala Asp Thr Ile Ile Gly Glu Leu Ser Gly Met Ala Lys
100 105 110
Asp Phe Leu Ser His Pro Gly Gly Ile Ala His Phe Glu Gln Leu Arg
115 120 125
Leu Phe Phe Glu Ser Ser Leu Val Arg Tyr Ala Ala Glu His Ala Thr
130 135 140
Asp Glu Gln Ile Asp Leu Leu Ala Lys Ala Leu Glu Ile Asn Ser Gln
145 150 155 160
Ser Leu Asp Asn Asn Ala Ala Phe Ile Arg Ser Asp Val Asp Phe His
165 170 175
Arg Val Leu Ala Glu Ile Pro Gly Asn Pro Ile Phe Met Ala Ile His
180 185 190
Val Ala Leu Leu Asp Trp Leu Ile Ala Ala Arg Pro Thr Val Thr Asp
195 200 205
Gln Ala Leu His Glu His Asn Asn Val Ser Tyr Gln Gln His Ile Ala
210 215 220
Ile Val Asp Ala Ile Arg Arg His Asp Pro Asp Glu Ala Asp Arg Ala
225 230 235 240
Leu Gln Ser His Leu Asn Ser Val Ser Ala Thr Trp His Ala Phe Gly
245 250 255
Gln Thr Thr Asn Lys Lys Lys
260
<210> 7
<211> 319
<212> DNA
<213> 人工序列
<400> 7
tatgggaagt gctccgtaat acgctgacaa gagagaaagg gcttggaggt attgaaacaa 60
gaggagttct gagaattggt atgccttata agtccaatta acagttgaaa acctgcatag 120
gagagctatg cgggtttttt attttacata atgatacata atttaccgaa acttgcggaa 180
cataattgag gaatcataga attttgtcaa aataatttta ttgacaacgt cttattaacg 240
ttgatataat ttaaatttta tttgacaaaa atgggctcgt gttgtacaat ggtataacag 300
gtataaaggt atatcgttt 319
<210> 8
<211> 13
<212> DNA
<213> 人工序列
<400> 8
ggagagctag cct 13
<210> 9
<211> 360
<212> DNA
<213> Bacillus subtilis
<400> 9
atggataaag tttatgtaga aggtatggag ttttacggat atcacggtgt gttcacagaa 60
gaaaacaaac ttggccagcg gtttaaagtc gatttaaccg ctgagctgga tttaagcaaa 120
gctggacaga cagacgacct tgagcaaacg atcaactatg ctgagctcta tcacgtatgt 180
aaagatatcg tggaagggga gcctgtgaaa ttggtggaaa cgctggcgga acgtattgct 240
ggcactgttc tcggaaaatt tcagcctgtt cagcaatgta cggtgaaagt gattaagcca 300
gacccgccaa ttcccggaca ctataaatca gtagcaattg aaattacgag aaaaaagtca 360
<210> 10
<211> 1212
<212> DNA
<213> Bacillus subtilis
<400> 10
atgttaaaaa aaatgctaaa atcttatgat tactcactga tattcgcaat cgttttatta 60
tgcggattcg gtttagtgat ggtatacagc tcaagcatga ttacggctgt ctcccggtat 120
ggagtaagca gtaatttttt cttcatgcgg cagctgtttg ctttaattgc gggtggcgct 180
ctatttattc tcatggcgtt gtttccttat aaagcactgg cccatcaaaa gtttcagaag 240
gggatactgc ttgtatctgt tcttgcgctt atctcactgt ttgttttcgg gcatgttgcc 300
ggaaacgcgc agagctggtt taaaatcggc ggaatgagta ttcagccggg ggagtttgtg 360
aaactggtcg tgattttata ccttgcagcc gtatatgcaa aaaaacaaag ttatatcgac 420
catctgttaa cgggagtagc ccctccggta gtcatgacgc ttataatttg tgggttaatt 480
gccatgcagc cagatttcgg tacagccatg attatagggt taattgcgac gtgcatgatc 540
ttgtgctccg gcttcagcgg aaagacgctg gtgaggcttg tgatactggg cggaattgtt 600
ttcattttag tcagccctat tatctatttg aatcaggaca aaattttaac tgaaggccgt 660
ttagcgcgtt ttgagagtct tgaagaccca tttaagtatg caaattcatc aggtttgcaa 720
gtgatcaatt cttattatgc gatcagctca ggcggcattt tcggcctggg gctcggtgaa 780
agtatccaaa aatacggata tctgcctgaa tcacacactg actttattat ggctgtcatt 840
gctgaagagc tcggcatttt tggggtattg tttgtgattt tcttattggg ttttgtcgtc 900
ataaaaggtt tttatattgc cagaaaatgc gaggacccgt ttggaagtct tctggcgatc 960
ggcatttcaa gcatgattgc catccagtcg tttattaacc ttggcggtgt cagcggatta 1020
attccgatta caggggttac gctgccattt atcagttacg ggggctcttc tttggtgctg 1080
ctgctgggga gtatggggat attagcgaat atcagcatgt ttgtgaaata ttcagagaat 1140
aagaaaaaga aagagccctt ggcgccgaag ggaatgaaaa agaaacagct caaaaaaact 1200
gtttatctgt aa 1212
<210> 11
<211> 45
<212> DNA
<213> 人工序列
<400> 11
ttgttaaagc cattaggtga tcgcgttgtc attgaactcg tagaa 45
<210> 12
<211> 8857
<212> DNA
<213> 人工序列
<400> 12
tattggtatg actggtttta agcgcaaaaa aagttgcttt ttcgtaccta ttaatgtatc 60
gttttagaaa accgactgta aaaagtacag tcggcattat ctcatattat aaaagccagt 120
cattaggcct atctgacaat tcctgaatag agttcataaa caatcctgca tgataaccat 180
cacaaacaga atgatgtacc tgtaaagata gcggtaaata tattgaatta cctttattaa 240
tgaattttcc tgctgtaata atgggtagaa ggtaattact attattattg atatttaagt 300
taaacccagt aaatgaagtc catggaataa tagaaagaga aaaagcattt tcaggtatag 360
gtgttttggg aaacaatttc cccgaaccat tatatttctc tacatcagaa aggtataaat 420
cataaaactc tttgaagtca ttctttacag gagtccaaat accagagaat gttttagata 480
caccatcaaa aattgtataa agtggctcta acttatccca ataacctaac tctccgtcgc 540
tattgtaacc agttctaaaa gctgtatttg agtttatcac ccttgtcact aagaaaataa 600
atgcagggta aaatttatat ccttcttgtt ttatgtttcg gtataaaaca ctaatatcaa 660
tttctgtggt tatactaaaa gtcgtttgtt ggttcaaata atgattaaat atctcttttc 720
tcttccaatt gtctaaatca attttattaa agttcatttg atatgcctcc taaattttta 780
tctaaagtga atttaggagg cttacttgtc tgctttcttc attagaatca atcctttttt 840
aaaagtcaat attactgtaa cataaatata tattttaaaa atatcccact ttatccaatt 900
ttcgtttgtt gaactaatgg gtgctttagt tgaagaataa aagaccacat taaaaaatgt 960
ggtcttttgt gtttttttaa aggatttgag cgtagcgaaa aatccttttc tttcttatct 1020
tgataataag ggtaactatt gccgatcgtc cattccgaca gcatcgccag tcactatggc 1080
gtgctgctag cgccattcgc cattcaggct gcgcaactgt tgggaagggc gatcggtgcg 1140
ggcctcttcg ctattacgcc agctggcgaa agggggatgt gctgcaaggc gattaagttg 1200
ggtaacgcca gggttttccc agtcacgacg ttgtaaaacg acggccagtg aattcgagct 1260
caatgtcaca gaacgcctgc gttattgcgc aggcgttttg taataaaaac accccataca 1320
gaaagcttat aatgcgatct gcttcactaa agtggcaggg cggagctcag gccttaactc 1380
acattaattg cgttgcgctc actgcccgct ttccagtcgg gaaacctgtc gtgccagctg 1440
cattaatgaa tcggccaacg cgcggggaga ggcggtttgc gtattgggcg ccagggtggt 1500
ttttcttttc accagtgaga cgggcaacag ctgattgccc ttcaccgcct ggccctgaga 1560
gagttgcagc aagcggtcca cgctggtttg ccccagcagg cgaaaatcct gtttgatggt 1620
ggttaacggc gggatataac atgagctgtc ttcggtatcg tcgtatccca ctaccgagat 1680
atccgcacca acgcgcagcc cggactcggt aatggcgcgc attgcgccca gcgccatctg 1740
atcgttggca accagcatcg cagtgggaac gatgccctca ttcagcattt gcatggtttg 1800
ttgaaaaccg gacatggcac tccagtcgcc ttcccgttcc gctatcggct gaatttgatt 1860
gcgagtgaga tatttatgcc agccagccag acgcagacgc gccgagacag aacttaatgg 1920
gcccgctaac agcgcgattt gctggtgacc caatgcgacc agatgctcca cgcccagtcg 1980
cgtaccgtct tcatgggaga aaataatact gttgatgggt gtctggtcag agacatcaag 2040
aaataacgcc ggaacattag tgcaggcagc ttccacagca atggcatcct ggtcatccag 2100
cggatagtta atgatcagcc cactgacgcg ttgcgcgaga agattgtgca ccgccgtttt 2160
acaggcttcg acgccgcttc gttctaccat cgacaccacc acgctggcac ccagttgatc 2220
ggcgcgagat ttaatcgccg cgacaatttg cgacggcgcg tgcagggcca gactggaggt 2280
ggcaacgcca atcagcaacg actgtttgcc cgccagttgt tgtgccacgc ggttgggaat 2340
gtaattcagc tccgccatcg ccgcttccac tttttcccgc gttttcgcag aaacgtggct 2400
ggcctggttc accacgcggg aaacggtctg ataagagaca ccggcatact ctgcgacatc 2460
gtataacgtt actggtttca tcaaaatcgt ctccctccgt ttgaatattt gattgatcgt 2520
aaccagatga agcactcttt ccactatccc tacagtgtta tggcttgaac aatcacgaaa 2580
caataattgg tacgtacgat ctttcagccg actcaaacat caaatcttac aaatgtagtc 2640
tttgaaagta ttacatatgt aagatttaaa tgcaaccgtt ttttcggaag gaaatgatga 2700
cctcgtttcc accggaatta gcttggtacc agctattgta acataatcgg tacgggggtg 2760
aaaaagctaa cggaaaaggg agcggaaaag aatgatgtaa gcgtgaaaaa ttttttaaaa 2820
aatctcttga cattggaagg gagatatgtt attataagaa ttgcggaatt gtgagcggat 2880
aacaattcat aattgtgagc ggataacaat tcaaccccaa aggaggtgaa atgtacacat 2940
gggtaaggga gaagaacttt tcactggagt tgtcccaatt cttgttgaat tagatggtga 3000
tgttaatggg cacaaatttt ctgtcagtgg agagggtgaa ggtgatgcaa catacggaaa 3060
acttaccctt aaatttattt gcactactgg aaagcttcct gttccttggc caacacttgt 3120
cactactctt acttatggtg ttcaatgctt ttcaagatac ccagatcata tgaagcggca 3180
cgacttcttc aagagcgcca tgcctgaggg atacgtgcag gagaggacca tcttcttcaa 3240
ggacgacggg aactacaaga cacgtgctga agtcaagttt gagggagaca ccctcgtcaa 3300
cagaatcgag cttaagggaa tcgatttcaa ggaggacgga aacatcctcg gccacaagtt 3360
ggaatacaac tacaactccc acaacgtata catcatggca gacaaacaaa agaatggaat 3420
caaagttaac ttcaaaatta gacacaacat tgaagatgga agcgttcaac tagcagacca 3480
ttatcaacaa aatactccaa ttggcgatgg ccctgtcctt ttaccagaca accattacct 3540
gtccacacaa tctgcccttt cgaaagatcc caacgaaaag agagaccaca tggtccttct 3600
tgagtttgta acagctgctg ggattacaca tggcatggat gaactataca aataatggag 3660
ccagaaaaaa cctgcagagg ctgaaggaaa agtgtctatt gcagaataac ttgtcagact 3720
gccgggaaat cccggcagtc ttttttccat tttcacgtca cgcgtccatg gagatctttg 3780
tctgcaactg aaaagtttat accttacctg gaacaaatgg ttgaaacata cgaggctaat 3840
atcggcttat taggaatagt ccctgtacta ataaaatcag gtggatcagt tgatcagtat 3900
attttggacg aagctcggaa agaatttgga gatgacttgc ttaattccac aattaaatta 3960
agggaaagaa taaagcgatt tgatgttcaa ggaatcacgg aagaagatac tcatgataaa 4020
gaagctctaa aactattcaa taaccttaca atggaattga tcgaaagggt ggaaggttaa 4080
tggtacgaaa attaggggat ctacctagaa agccacaagg cgataggtca agcttaaaga 4140
acccttacat ggatcttaca gattctgaaa gtaaagaaac aacagaggtt aaacaaacag 4200
aaccaaaaag aaaaaaagca ttgttgaaaa caatgaaagt tgatgtttca atccataata 4260
agattaaatc gctgcacgaa attctggcag catccgaagg gaattcatat tacttagagg 4320
atactattga gagagctatt gataagatgg ttgagacatt acctgagagc caaaaaactt 4380
tttatgaata tgaattaaaa aaaagaacca acaaaggctg agacagactc caaacgagtc 4440
tgttttttta aaaaaaatat taggagcatt gaatatatat tagagaatta agaaagacat 4500
gggaataaaa atattttaaa tccagtaaaa atatgataag attatttcag aatatgaaga 4560
actctgtttg tttttgatga aaaaacaaac aaaaaaaatc cacctaacgg aatctcaatt 4620
taactaacag cggccaaact gagaagttaa atttgagaag gggaaaaggc ggatttatac 4680
ttgtatttaa ctatctccat tttaacattt tattaaaccc catacaagtg aaaatcctct 4740
tttacactgt tcctttaggt gatcgcggag ggacattatg agtgaagtaa acctaaaagg 4800
aaatacagat gaattagtgt attatcgaca gcaaaccact ggaaataaaa tcgccaggaa 4860
gagaatcaaa aaagggaaag aagaagttta ttatgttgct gaaacggaag agaagatatg 4920
gacagaagag caaataaaaa acttttcttt agacaaattt ggtacgcata taccttacat 4980
agaaggtcat tatacaatct taaataatta cttctttgat ttttggggct attttttagg 5040
tgctgaagga attgcgctct atgctcacct aactcgttat gcatacggca gcaaagactt 5100
ttgctttcct agtctacaaa caatcgctaa aaaaatggac aagactcctg ttacagttag 5160
aggctacttg aaactgcttg aaaggtacgg ttttatttgg aaggtaaacg tccgtaataa 5220
aaccaaggat aacacagagg aatccccgat ttttaagatt agacgtaagg ttcctttgct 5280
ttcagaagaa cttttaaatg gaaaccctaa tattgaaatt ccagatgacg aggaagcaca 5340
tgtaaagaag gctttaaaaa aggaaaaaga gggtcttcca aaggttttga aaaaagagca 5400
cgatgaattt gttaaaaaaa tgatggatga gtcagaaaca attaatattc cagaggcctt 5460
acaatatgac acaatgtatg aagatatact cagtaaagga gaaattcgaa aagaaatcaa 5520
aaaacaaata cctaatccta caacatcttt tgagagtata tcaatgacaa ctgaagagga 5580
aaaagtcgac agtactttaa aaagcgaaat gcaaaatcgt gtctctaagc cttcttttga 5640
tacctggttt aaaaacacta agatcaaaat tgaaaataaa aattgtttat tacttgtacc 5700
gagtgaattt gcatttgaat ggattaagaa aagatattta gaaacaatta aaacagtcct 5760
tgaagaagct ggatatgttt tcgaaaaaat cgaactaaga aaagtgcaat aaactgctga 5820
agtatttcag cagttttttt tatttagaaa tagtgaaaaa aatataatca gggaggtatc 5880
aatatttaat gagtactgat ttaaatttat ttagactgga attaataatt aacacgtaga 5940
ctaattaaaa tttaatgagg gataaagagg atacaaaaat attaatttca atccctatta 6000
aattttaaca agggggggat taaaatttaa ttagaggttt atccacaaga aaagacccta 6060
ataaaatttt tactagggtt ataacactga ttaatttctt aatgggggag ggattaaaat 6120
ttaatgacaa agaaaacaat cttttaagaa aagcttttaa aagataataa taaaaagagc 6180
tttgcgatta agcaaaactc tttacttttt cattgacatt atcaaattca tcgatttcaa 6240
attgttgttg tatcataaag ttaattctgt tttgcacaac cttttcagga atataaaaca 6300
catctgaggc ttgttttata aactcagggt cgctaaagtc aatgtaacgt agcatatgat 6360
atggtatagc ttccacccaa gttagccttt ctgcttcttc tgaatgtttt tcatatactt 6420
ccatgggtat ctctaaatga ttttcctcat gtagcaaggt atgagcaaaa agtttatgga 6480
attgatagtt cctctctttt tcttcaactt ttttatctaa aacaaacact ttaacatctg 6540
agtcaatgta agcataagat gtttttccag tcataatttc aatcccaaat cttttagaca 6600
gaaattctgg acgtaaatct tttggtgaaa gaattttttt atgtagcaat atatccgata 6660
cagcaccttc taaaagcgtt ggtgaatagg gcattttacc tatctcctct cattttgtgg 6720
aataaaaata gtcatattcg tccatctacc tatcctatta tcgaacagtt gaacttttta 6780
atcaaggatc agtccttttt ttcattattc ttaaactgtg ctcttaactt taacaactcg 6840
atttgttttt ccagatctcg agggtaacta gcctcgccga tcccgcaaga ggcccggcag 6900
tcaggtggca cttttcgggg aaatgtgcgc ggaaccccta tttgtttatt tttctaaata 6960
cattcaaata tgtatccgct catgagacaa taaccctgat aaatgcttca ataatattga 7020
aaaaggaaga gtatgagtat tcaacatttc cgtgtcgccc ttattccctt ttttgcggca 7080
ttttgccttc ctgtttttgc tcacccagaa acgctggtga aagtaaaaga tgctgaagat 7140
cagttgggtg cacgagtggg ttacatcgaa ctggatctca acagcggtaa gatccttgag 7200
agttttcgcc ccgaagaacg ttttccaatg atgagcactt ttaaagttct gctatgtggc 7260
gcggtattat cccgtattga cgccgggcaa gagcaactcg gtcgccgcat acactattct 7320
cagaatgact tggttgagta ctcaccagtc acagaaaagc atcttacgga tggcatgaca 7380
gtaagagaat tatgcagtgc tgccataacc atgagtgata acactgcggc caacttactt 7440
ctgacaacga tcggaggacc gaaggagcta accgcttttt tgcacaacat gggggatcat 7500
gtaactcgcc ttgatcgttg ggaaccggag ctgaatgaag ccataccaaa cgacgagcgt 7560
gacaccacga tgcctgtagc aatggcaaca acgttgcgca aactattaac tggcgaacta 7620
cttactctag cttcccggca acaattaata gactggatgg aggcggataa agttgcagga 7680
ccacttctgc gctcggccct tccggctggc tggtttattg ctgataaatc tggagccggt 7740
gagcgtgggt ctcgcggtat cattgcagca ctggggccag atggtaagcc ctcccgtatc 7800
gtagttatct acacgacggg gagtcaggca actatggatg aacgaaatag acagatcgct 7860
gagataggtg cctcactgat taagcattgg taactgtcag accaagttta ctcatatata 7920
ctttagattg atttaaaact tcatttttaa tttaaaagga tctaggtgaa gatccttttt 7980
gataatctca tgaccaaaat cccttaacgt gagttttcgt tccactgagc gtcagacccc 8040
gtagaaaaga tcaaaggatc ttcttgagat cctttttttc tgcgcgtaat ctgctgcttg 8100
caaacaaaaa aaccaccgct accagcggtg gtttgtttgc cggatcaaga gctaccaact 8160
ctttttccga aggtaactgg cttcagcaga gcgcagatac caaatactgt ccttctagtg 8220
tagccgtagt taggccacca cttcaagaac tctgtagcac cgcctacata cctcgctctg 8280
ctaatcctgt taccagtggc tgctgccagt ggcgataagt cgtgtcttac cgggttggac 8340
tcaagacgat agttaccgga taaggcgcag cggtcgggct gaacgggggg ttcgtgcaca 8400
cagcccagct tggagcgaac gacctacacc gaactgagat acctacagcg tgagctatga 8460
gaaagcgcca cgcttcccga agggagaaag gcggacaggt atccggtaag cggcagggtc 8520
ggaacaggag agcgcacgag ggagcttcca gggggaaacg cctggtatct ttatagtcct 8580
gtcgggtttc gccacctctg acttgagcgt cgatttttgt gatgctcgtc aggggggcgg 8640
agcctatgga aaaacgccag caacgcggcc tttttacggt tcctggcctt ttgctggcct 8700
tttgctcaca tgttctttcc tgcgttatcc cctgattctg tggataaccg tattaccgcc 8760
tttgagtgag ctgataccgc tcgccgcagc cgaacgaccg agcgcagcga gtcagtgagc 8820
gaggaagcgg aagagcgccc aatacgcatg cttaagt 8857
<210> 13
<211> 8769
<212> DNA
<213> 人工序列
<400> 13
tattggtatg actggtttta agcgcaaaaa aagttgcttt ttcgtaccta ttaatgtatc 60
gttttagaaa accgactgta aaaagtacag tcggcattat ctcatattat aaaagccagt 120
cattaggcct atctgacaat tcctgaatag agttcataaa caatcctgca tgataaccat 180
cacaaacaga atgatgtacc tgtaaagata gcggtaaata tattgaatta cctttattaa 240
tgaattttcc tgctgtaata atgggtagaa ggtaattact attattattg atatttaagt 300
taaacccagt aaatgaagtc catggaataa tagaaagaga aaaagcattt tcaggtatag 360
gtgttttggg aaacaatttc cccgaaccat tatatttctc tacatcagaa aggtataaat 420
cataaaactc tttgaagtca ttctttacag gagtccaaat accagagaat gttttagata 480
caccatcaaa aattgtataa agtggctcta acttatccca ataacctaac tctccgtcgc 540
tattgtaacc agttctaaaa gctgtatttg agtttatcac ccttgtcact aagaaaataa 600
atgcagggta aaatttatat ccttcttgtt ttatgtttcg gtataaaaca ctaatatcaa 660
tttctgtggt tatactaaaa gtcgtttgtt ggttcaaata atgattaaat atctcttttc 720
tcttccaatt gtctaaatca attttattaa agttcatttg atatgcctcc taaattttta 780
tctaaagtga atttaggagg cttacttgtc tgctttcttc attagaatca atcctttttt 840
aaaagtcaat attactgtaa cataaatata tattttaaaa atatcccact ttatccaatt 900
ttcgtttgtt gaactaatgg gtgctttagt tgaagaataa aagaccacat taaaaaatgt 960
ggtcttttgt gtttttttaa aggatttgag cgtagcgaaa aatccttttc tttcttatct 1020
tgataataag ggtaactatt gccgatcgtc cattccgaca gcatcgccag tcactatggc 1080
gtgctgctag cgccattcgc cattcaggct gcgcaactgt tgggaagggc gatcggtgcg 1140
ggcctcttcg ctattacgcc agctggcgaa agggggatgt gctgcaaggc gattaagttg 1200
ggtaacgcca gggttttccc agtcacgacg ttgtaaaacg acggccagtg aattcgagct 1260
caatgtcaca gaacgcctgc gttattgcgc aggcgttttg taataaaaac accccataca 1320
gaaagcttat aatgcgatct gcttcactaa agtggcatta tttctttttg ttggtggtct 1380
gaccgaaagc gtgccaggta gcagagacgc tgttgagatg cgattgcaac gcacgatcgg 1440
cttcgtcagg atcatgacgg cggatcgcat caacgatcgc aatatgctgt tgataactaa 1500
cgttgttatg ttcgtgcagt gcctgatcgg taaccgttgg gcgtgcggca ataagccagt 1560
cgagcagggc aacgtggatc gccatgaaga ttgggttacc ggggatctcc gccagcacgc 1620
ggtggaaatc aacgtctgaa cgaatgaatg ccgcgttgtt atccagcgac tgactgttga 1680
tttccagtgc ttttgccagc aaatcgattt gctcatcggt ggcatgttca gccgcatagc 1740
gcaccagact ggattcaaag aacagacgta attgttcgaa atgggcaatc ccaccgggat 1800
gagaaaggaa atctttcgcc atgccggaaa gctcaccgat gatagtgtcc gcagaaggac 1860
gcgagacgcg agcgcgttcg ccgttgttta tttgcaccag acctttgcgt tttaacgctg 1920
ccagcgcttc acgcaccgaa ggacgcccga cgttaaagaa cgccatcagt tcgcgttcag 1980
acggtaattg ttcaccttcg ccaaattcac gacggcggat catctgttcc agctcttctt 2040
ccaccatttc ggagagtttt ttacgcgcca gcgggcggct acgcaagttg cgaccaattg 2100
caggtgaaga atcttcggtt tgcgaatcaa atgcgttcat aaggcccatg tgtacatttc 2160
acctcctttc ccaaatgtta actctatata tatgtatctc tttttttaaa ttaatcttat 2220
tgatttctat tataaggata gattcccatc agaaatagtc ttgacttcat gtgacaaatt 2280
tcttaattat tcgttctaaa aaaaagtttt taagggtatt aaatatttca ttttcattgc 2340
aaaggtgaca aaaaacgagt gcttttgtca tgttttatgg gatgtttttc aacataaagg 2400
aaataaatga aaaactttcg gggtcggctc atatatcgga aaaatgagtg ataaagtata 2460
ttcgaggagg tttcgtgccg gtgaactact cggtcgtcaa ccccaagtga ttatgggaag 2520
tgctccgtaa tacgctgaca agagagaaag ggcttggagg tattgaaaca agaggagttc 2580
tgagaattgg tatgccttat aagtccaatt aacagttgaa aacctgcata ggagagctat 2640
gcgggttttt tattttacat aatgatacat aatttaccga aacttgcgga acataattga 2700
ggaatcatag aattttgtca aaataatttt attgacaacg tcttattaac gttgatataa 2760
tttaaatttt atttgacaaa aatgggctcg tgttgtacaa tggtataaca ggtataaagg 2820
tatatcgttt aaaggaggtg aaatgtacac atgggtaagg gagaagaact tttcactgga 2880
gttgtcccaa ttcttgttga attagatggt gatgttaatg ggcacaaatt ttctgtcagt 2940
ggagagggtg aaggtgatgc aacatacgga aaacttaccc ttaaatttat ttgcactact 3000
ggaaagcttc ctgttccttg gccaacactt gtcactactc ttacttatgg tgttcaatgc 3060
ttttcaagat acccagatca tatgaagcgg cacgacttct tcaagagcgc catgcctgag 3120
ggatacgtgc aggagaggac catcttcttc aaggacgacg ggaactacaa gacacgtgct 3180
gaagtcaagt ttgagggaga caccctcgtc aacagaatcg agcttaaggg aatcgatttc 3240
aaggaggacg gaaacatcct cggccacaag ttggaataca actacaactc ccacaacgta 3300
tacatcatgg cagacaaaca aaagaatgga atcaaagtta acttcaaaat tagacacaac 3360
attgaagatg gaagcgttca actagcagac cattatcaac aaaatactcc aattggcgat 3420
ggccctgtcc ttttaccaga caaccattac ctgtccacac aatctgccct ttcgaaagat 3480
cccaacgaaa agagagacca catggtcctt cttgagtttg taacagctgc tgggattaca 3540
catggcatgg atgaactata caaataatgg agccagaaaa aacctgcaga ggctgaagga 3600
aaagtgtcta ttgcagaata acttgtcaga ctgccgggaa atcccggcag tcttttttcc 3660
attttcacgt cacgcgtcca tggagatctt tgtctgcaac tgaaaagttt ataccttacc 3720
tggaacaaat ggttgaaaca tacgaggcta atatcggctt attaggaata gtccctgtac 3780
taataaaatc aggtggatca gttgatcagt atattttgga cgaagctcgg aaagaatttg 3840
gagatgactt gcttaattcc acaattaaat taagggaaag aataaagcga tttgatgttc 3900
aaggaatcac ggaagaagat actcatgata aagaagctct aaaactattc aataacctta 3960
caatggaatt gatcgaaagg gtggaaggtt aatggtacga aaattagggg atctacctag 4020
aaagccacaa ggcgataggt caagcttaaa gaacccttac atggatctta cagattctga 4080
aagtaaagaa acaacagagg ttaaacaaac agaaccaaaa agaaaaaaag cattgttgaa 4140
aacaatgaaa gttgatgttt caatccataa taagattaaa tcgctgcacg aaattctggc 4200
agcatccgaa gggaattcat attacttaga ggatactatt gagagagcta ttgataagat 4260
ggttgagaca ttacctgaga gccaaaaaac tttttatgaa tatgaattaa aaaaaagaac 4320
caacaaaggc tgagacagac tccaaacgag tctgtttttt taaaaaaaat attaggagca 4380
ttgaatatat attagagaat taagaaagac atgggaataa aaatatttta aatccagtaa 4440
aaatatgata agattatttc agaatatgaa gaactctgtt tgtttttgat gaaaaaacaa 4500
acaaaaaaaa tccacctaac ggaatctcaa tttaactaac agcggccaaa ctgagaagtt 4560
aaatttgaga aggggaaaag gcggatttat acttgtattt aactatctcc attttaacat 4620
tttattaaac cccatacaag tgaaaatcct cttttacact gttcctttag gtgatcgcgg 4680
agggacatta tgagtgaagt aaacctaaaa ggaaatacag atgaattagt gtattatcga 4740
cagcaaacca ctggaaataa aatcgccagg aagagaatca aaaaagggaa agaagaagtt 4800
tattatgttg ctgaaacgga agagaagata tggacagaag agcaaataaa aaacttttct 4860
ttagacaaat ttggtacgca tataccttac atagaaggtc attatacaat cttaaataat 4920
tacttctttg atttttgggg ctatttttta ggtgctgaag gaattgcgct ctatgctcac 4980
ctaactcgtt atgcatacgg cagcaaagac ttttgctttc ctagtctaca aacaatcgct 5040
aaaaaaatgg acaagactcc tgttacagtt agaggctact tgaaactgct tgaaaggtac 5100
ggttttattt ggaaggtaaa cgtccgtaat aaaaccaagg ataacacaga ggaatccccg 5160
atttttaaga ttagacgtaa ggttcctttg ctttcagaag aacttttaaa tggaaaccct 5220
aatattgaaa ttccagatga cgaggaagca catgtaaaga aggctttaaa aaaggaaaaa 5280
gagggtcttc caaaggtttt gaaaaaagag cacgatgaat ttgttaaaaa aatgatggat 5340
gagtcagaaa caattaatat tccagaggcc ttacaatatg acacaatgta tgaagatata 5400
ctcagtaaag gagaaattcg aaaagaaatc aaaaaacaaa tacctaatcc tacaacatct 5460
tttgagagta tatcaatgac aactgaagag gaaaaagtcg acagtacttt aaaaagcgaa 5520
atgcaaaatc gtgtctctaa gccttctttt gatacctggt ttaaaaacac taagatcaaa 5580
attgaaaata aaaattgttt attacttgta ccgagtgaat ttgcatttga atggattaag 5640
aaaagatatt tagaaacaat taaaacagtc cttgaagaag ctggatatgt tttcgaaaaa 5700
atcgaactaa gaaaagtgca ataaactgct gaagtatttc agcagttttt tttatttaga 5760
aatagtgaaa aaaatataat cagggaggta tcaatattta atgagtactg atttaaattt 5820
atttagactg gaattaataa ttaacacgta gactaattaa aatttaatga gggataaaga 5880
ggatacaaaa atattaattt caatccctat taaattttaa caaggggggg attaaaattt 5940
aattagaggt ttatccacaa gaaaagaccc taataaaatt tttactaggg ttataacact 6000
gattaatttc ttaatggggg agggattaaa atttaatgac aaagaaaaca atcttttaag 6060
aaaagctttt aaaagataat aataaaaaga gctttgcgat taagcaaaac tctttacttt 6120
ttcattgaca ttatcaaatt catcgatttc aaattgttgt tgtatcataa agttaattct 6180
gttttgcaca accttttcag gaatataaaa cacatctgag gcttgtttta taaactcagg 6240
gtcgctaaag tcaatgtaac gtagcatatg atatggtata gcttccaccc aagttagcct 6300
ttctgcttct tctgaatgtt tttcatatac ttccatgggt atctctaaat gattttcctc 6360
atgtagcaag gtatgagcaa aaagtttatg gaattgatag ttcctctctt tttcttcaac 6420
ttttttatct aaaacaaaca ctttaacatc tgagtcaatg taagcataag atgtttttcc 6480
agtcataatt tcaatcccaa atcttttaga cagaaattct ggacgtaaat cttttggtga 6540
aagaattttt ttatgtagca atatatccga tacagcacct tctaaaagcg ttggtgaata 6600
gggcatttta cctatctcct ctcattttgt ggaataaaaa tagtcatatt cgtccatcta 6660
cctatcctat tatcgaacag ttgaactttt taatcaagga tcagtccttt ttttcattat 6720
tcttaaactg tgctcttaac tttaacaact cgatttgttt ttccagatct cgagggtaac 6780
tagcctcgcc gatcccgcaa gaggcccggc agtcaggtgg cacttttcgg ggaaatgtgc 6840
gcggaacccc tatttgttta tttttctaaa tacattcaaa tatgtatccg ctcatgagac 6900
aataaccctg ataaatgctt caataatatt gaaaaaggaa gagtatgagt attcaacatt 6960
tccgtgtcgc ccttattccc ttttttgcgg cattttgcct tcctgttttt gctcacccag 7020
aaacgctggt gaaagtaaaa gatgctgaag atcagttggg tgcacgagtg ggttacatcg 7080
aactggatct caacagcggt aagatccttg agagttttcg ccccgaagaa cgttttccaa 7140
tgatgagcac ttttaaagtt ctgctatgtg gcgcggtatt atcccgtatt gacgccgggc 7200
aagagcaact cggtcgccgc atacactatt ctcagaatga cttggttgag tactcaccag 7260
tcacagaaaa gcatcttacg gatggcatga cagtaagaga attatgcagt gctgccataa 7320
ccatgagtga taacactgcg gccaacttac ttctgacaac gatcggagga ccgaaggagc 7380
taaccgcttt tttgcacaac atgggggatc atgtaactcg ccttgatcgt tgggaaccgg 7440
agctgaatga agccatacca aacgacgagc gtgacaccac gatgcctgta gcaatggcaa 7500
caacgttgcg caaactatta actggcgaac tacttactct agcttcccgg caacaattaa 7560
tagactggat ggaggcggat aaagttgcag gaccacttct gcgctcggcc cttccggctg 7620
gctggtttat tgctgataaa tctggagccg gtgagcgtgg gtctcgcggt atcattgcag 7680
cactggggcc agatggtaag ccctcccgta tcgtagttat ctacacgacg gggagtcagg 7740
caactatgga tgaacgaaat agacagatcg ctgagatagg tgcctcactg attaagcatt 7800
ggtaactgtc agaccaagtt tactcatata tactttagat tgatttaaaa cttcattttt 7860
aatttaaaag gatctaggtg aagatccttt ttgataatct catgaccaaa atcccttaac 7920
gtgagttttc gttccactga gcgtcagacc ccgtagaaaa gatcaaagga tcttcttgag 7980
atcctttttt tctgcgcgta atctgctgct tgcaaacaaa aaaaccaccg ctaccagcgg 8040
tggtttgttt gccggatcaa gagctaccaa ctctttttcc gaaggtaact ggcttcagca 8100
gagcgcagat accaaatact gtccttctag tgtagccgta gttaggccac cacttcaaga 8160
actctgtagc accgcctaca tacctcgctc tgctaatcct gttaccagtg gctgctgcca 8220
gtggcgataa gtcgtgtctt accgggttgg actcaagacg atagttaccg gataaggcgc 8280
agcggtcggg ctgaacgggg ggttcgtgca cacagcccag cttggagcga acgacctaca 8340
ccgaactgag atacctacag cgtgagctat gagaaagcgc cacgcttccc gaagggagaa 8400
aggcggacag gtatccggta agcggcaggg tcggaacagg agagcgcacg agggagcttc 8460
cagggggaaa cgcctggtat ctttatagtc ctgtcgggtt tcgccacctc tgacttgagc 8520
gtcgattttt gtgatgctcg tcaggggggc ggagcctatg gaaaaacgcc agcaacgcgg 8580
cctttttacg gttcctggcc ttttgctggc cttttgctca catgttcttt cctgcgttat 8640
cccctgattc tgtggataac cgtattaccg cctttgagtg agctgatacc gctcgccgca 8700
gccgaacgac cgagcgcagc gagtcagtga gcgaggaagc ggaagagcgc ccaatacgca 8760
tgcttaagt 8769
<210> 14
<211> 3494
<212> DNA
<213> 人工序列
<400> 14
gacgaaaggg cctcgtgata cgcctatttt tataggttaa tgtcatgata ataatggttt 60
cttagacgtc aggtggcact tttcggggaa atgtgcgcgg aacccctatt tgtttatttt 120
tctaaataca ttcaaatatg tatccgctca tgagacaata accctgataa atgcttcaat 180
aatattgaaa aaggaagagt atgagtattc aacatttccg tgtcgccctt attccctttt 240
ttgcggcatt ttgccttcct gtttttgctc acccagaaac gctggtgaaa gtaaaagatg 300
ctgaagatca gttgggtgca cgagtgggtt acatcgaact ggatctcaac agcggtaaga 360
tccttgagag ttttcgcccc gaagaacgtt ttccaatgat gagcactttt aaagttctgc 420
tatgtggcgc ggtattatcc cgtattgacg ccgggcaaga gcaactcggt cgccgcatac 480
actattctca gaatgacttg gttgagtact caccagtcac agaaaagcat cttacggatg 540
gcatgacagt aagagaatta tgcagtgctg ccataaccat gagtgataac actgcggcca 600
acttacttct gacaacgatc ggaggaccga aggagctaac cgcttttttg cacaacatgg 660
gggatcatgt aactcgcctt gatcgttggg aaccggagct gaatgaagcc ataccaaacg 720
acgagcgtga caccacgatg cctgtagcaa tggcaacaac gttgcgcaaa ctattaactg 780
gcgaactact tactctagct tcccggcaac aattaataga ctggatggag gcggataaag 840
ttgcaggacc acttctgcgc tcggcccttc cggctggctg gtttattgct gataaatctg 900
gagccggtga gcgtgggtct cgcggtatca ttgcagcact ggggccagat ggtaagccct 960
cccgtatcgt agttatctac acgacgggga gtcaggcaac tatggatgaa cgaaatagac 1020
agatcgctga gataggtgcc tcactgatta agcattggta actgtcagac caagtttact 1080
catatatact ttagattgat ttaaaacttc atttttaatt taaaaggatc taggtgaaga 1140
tcctttttga taatctcatg accaaaatcc cttaacgtga gttttcgttc cactgagcgt 1200
cagaccccgt agaaaagatc aaaggatctt cttgagatcc tttttttctg cgcgtaatct 1260
gctgcttgca aacaaaaaaa ccaccgctac cagcggtggt ttgtttgccg gatcaagagc 1320
taccaactct ttttccgaag gtaactggct tcagcagagc gcagatacca aatactgttc 1380
ttctagtgta gccgtagtta ggccaccact tcaagaactc tgtagcaccg cctacatacc 1440
tcgctctgct aatcctgtta ccagtggctg ctgccagtgg cgataagtcg tgtcttaccg 1500
ggttggactc aagacgatag ttaccggata aggcgcagcg gtcgggctga acggggggtt 1560
cgtgcacaca gcccagcttg gagcgaacga cctacaccga actgagatac ctacagcgtg 1620
agctatgaga aagcgccacg cttcccgaag ggagaaaggc ggacaggtat ccggtaagcg 1680
gcagggtcgg aacaggagag cgcacgaggg agcttccagg gggaaacgcc tggtatcttt 1740
atagtcctgt cgggtttcgc cacctctgac ttgagcgtcg atttttgtga tgctcgtcag 1800
gggggcggag cctatggaaa aacgccagca acgcggcctt tttacggttc ctggcctttt 1860
gctggccttt tgctcacatg ttctttcctg cgttatcccc tgattctgtg gataaccgta 1920
ttaccgcctt tgagtgagct gataccgctc gccgcagccg aacgaccgag cgcagcgagt 1980
cagtgagcga ggaagcggaa gagcgcccaa tacgcaaacc gcctctcccc gcgcgttggc 2040
cgattcatta atgcagctgg cacgacaggt ttcccgactg gaaagcgggc agtgagcgca 2100
acgcaattaa tgtgagttag ctcactcatt aggcacccca ggctttacac tttatgcttc 2160
cggctcgtat gttgtgtgga attgtgagcg gataacaatt tcacacagga aacagctatg 2220
accatgatta cgaattcgag ctcggtaccc ggggatcctc tagagatacc gttcgtatag 2280
catacattat acgaagttat cttgatatgg ctttttatat gtgttactct acatacagaa 2340
aggaggaact aaacatggcc aagttgacca gtgccgttcc ggtgctcacc gcgcgcgacg 2400
tcgccggagc ggtcgagttc tggaccgacc ggctcgggtt ctcccgggac ttcgtggagg 2460
acgacttcgc cggtgtggtc cgggacgacg tgaccctgtt catcagcgcg gtccaggacc 2520
aggtggtgcc ggacaacacc ctggcctggg tgtgggtgcg cggcctggac gagctgtacg 2580
ccgagtggtc ggaggtcgtg tccacgaact tccgggacgc ctccgggccg gccatgaccg 2640
agatcggcga gcagccgtgg gggcgggagt tcgccctgcg cgacccggcc ggcaactgcg 2700
tgcacttcgt ggccgaggag caggactgaa taacttcgta tagcatacat tatacgaacg 2760
gtaaatcgtc gactgatagg tggtatgttt tcgcttgaac ttttaaatac agccattgaa 2820
catacggttg atttaataac tgacaaacat caccctcttg ctaaagcggc caaggacgcc 2880
gccgccgggg ctgtttgcgt tcttgccgtg atttcgtgta ccattggttt acttattttt 2940
ttgccaaggc tgtaatggct gaaaattctt acatttattt tacattttta gaaatgggcg 3000
tgaaaaaaag cgcgcgatta tgtaaaatat aaagtgatag cggtaccatt ataggtaaga 3060
gaggaatgta cacctgcagt gcaagcatgc aagcttggca ctggccgtcg ttttacaacg 3120
tcgtgactgg gaaaaccctg gcgttaccca acttaatcgc cttgcagcac atcccccttt 3180
cgccagctgg cgtaatagcg aagaggcccg caccgatcgc ccttcccaac agttgcgcag 3240
cctgaatggc gaatggcgcc tgatgcggta ttttctcctt acgcatctgt gcggtatttc 3300
acaccgcata tggtgcactc tcagtacaat ctgctctgat gccgcatagt taagccagcc 3360
ccgacacccg ccaacacccg ctgacgcgcc ctgacgggct tgtctgctcc cggcatccgc 3420
ttacagacaa gctgtgaccg tctccgggag ctgcatgtgt cagaggtttt caccgtcatc 3480
accgaaacgc gcga 3494

Claims (5)

1.细胞亚群调控回路,其特征在于,为(a)或(b)或(c):
(a)以pHT01为载体骨架,含有阻遏蛋白lac I表达框、IPTG诱导型启动子Pgrac2、RBS0、转录调控蛋白nanR的编码基因、整合有转录调控蛋白nanR结合序列的组成型启动子Pveg105、RBS1和必需基因folB;所述IPTG诱导型启动子Pgrac2和RBS0调控转录调控蛋白nanR表达;所述启动子Pveg105和RBS1调控必需基因folB表达;所述lac I表达框和启动子Pgrac2转录方向相反,启动子Pgrac2和Pveg105转录方向相对;调控转录调控蛋白nanR的编码基因和必须基因folB之间具有一个双向终止子;
(b)以pHT01为载体骨架,含有阻遏蛋白lac I表达框、IPTG诱导型启动子Pgrac2、RBS0、转录调控蛋白nanR的编码基因、整合有转录调控蛋白nanR结合序列的组成型启动子Pveg105,RBS1和必需基因ftsW;所述IPTG诱导型启动子Pgrac2和RBS0调控转录调控蛋白nanR表达;所述启动子Pveg105和RBS1调控必需基因ftsW表达;所述lac I表达框和启动子Pgrac2转录方向相反,启动子Pgrac2和Pveg105转录方向相对;调控转录调控蛋白nanR的编码基因和必须基因ftsW之间具有一个双向终止子;
(c)以pHT01为载体骨架,含有阻遏蛋白lac I表达框、IPTG诱导型启动子Pgrac2、RBS0、转录调控蛋白nanR的编码基因、整合有转录调控蛋白nanR结合序列的组成型启动子Pveg105、N端编码序列N1和必需基因ftsW;所述IPTG诱导型启动子Pgrac2和RBS0调控转录调控蛋白nanR表达;所述启动子Pveg105和必须基因ftsW之间依次设置RBS0和N端编码序列N1,所述启动子Pveg105、RBS0和N端编码序列N1调控必需基因ftsW表达;所述lac I表达框和启动子Pgrac2转录方向相反,启动子Pgrac2和Pveg105转录方向相对;调控转录调控蛋白nanR的编码基因和必须基因ftsW之间具有一个双向终止子;
所述启动子Pveg105的核苷酸序列如SEQ IDNO.7所示;RBS0的核苷酸序列如SEQ ID NO.4所示;RBS1的核苷酸序列如SEQ ID NO.8所示;所述N端编码序列N1的序列如SEQ ID NO.11所示;所述必需基因folB的核苷酸序列如SEQ NO.9所示;必需基因ftsW的核苷酸序列如SEQNO.10所示。
2.权利要求1所述的细胞亚群调控回路在提高N-乙酰神经氨酸产量方面的应用。
3.一种提高枯草芽孢杆菌生产N-乙酰神经氨酸能力的方法,其特征在于,缺失所述枯草芽孢杆菌基因组的必需基因folBftsW,再将权利要求1所述的细胞亚群调控回路转化至枯草芽孢杆菌细胞中。
4.含有权利要求1所述细胞亚群调控回路的重组枯草芽孢杆菌。
5.权利要求1所述细胞亚群调控回路或权利要求4所述的重组枯草芽孢杆菌在N-乙酰神经氨酸的生产中的应用。
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