CN113583972B - 一株可降低抗生素耐药性的大肠杆菌噬菌体及其应用 - Google Patents
一株可降低抗生素耐药性的大肠杆菌噬菌体及其应用 Download PDFInfo
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- CN113583972B CN113583972B CN202110894036.9A CN202110894036A CN113583972B CN 113583972 B CN113583972 B CN 113583972B CN 202110894036 A CN202110894036 A CN 202110894036A CN 113583972 B CN113583972 B CN 113583972B
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Abstract
本发明公开了一株可降低抗生素耐药性的大肠杆菌噬菌体及其应用,其宿主为大肠杆菌,透过电镜观察,该噬菌体多面体立体对称,包裹着核酸,直径约61nm,无尾,保藏编号为CGMCC No.22493。大肠杆菌噬菌体RDP‑EC‑20059对禽类养殖环境中大肠杆菌具有强裂作用,具有较高的温度耐受性和较宽的酸碱耐受范围,可以高效治疗该病原菌在禽类养殖中所引起的大肠杆菌疾病,以及可以作为消毒剂,为工业化、规模化、程序化生产噬菌体及治疗大肠杆菌引起的禽类养殖细菌病提供了噬菌体来源。
Description
技术领域
本发明涉及生物技术领域,特别是涉及一株可降低抗生素耐药性的大肠杆菌噬菌体及其在禽类养殖环境中大肠杆菌感染中的应用。
背景技术
禽大肠杆菌病是由某些致病性或条件致病性大肠杆菌引起,是危害养禽业最为严重的细菌性疾病之一,在疾病预防和治疗过程中最易产生耐药性,导致抗生素用量增加和禽类产品药物残留等一系列问题。该病一年四季均可发生,但以冬春季节和气温多变时期多发,给养禽业带来严重的经济损失。禽大肠杆菌病在临床上主要通过抗生素防治,但由于抗生素的盲目添加或过量使用,导致大肠杆菌的耐药菌株不断增多、耐药谱不断扩大,进而导致治疗效果下降,养殖效益降低,同时对食品安全构成威胁。在细菌耐药性日益突出的当下,全球养殖业已经全面掀起“禁抗”的热潮,2019年7月10日,农业农村部发布公告,自2020年1月1日起,退出除中药外的所有促生长类药物饲料添加剂品种,加快了我国进入“无抗时代”的脚步。
与传统抗生素相比,噬菌体疗法具有许多优势。噬菌体是能够抵抗革兰氏阳性和革兰氏阴性细菌的天然抗菌物质。噬菌体由于其无处不在并且在环境含量丰富的性质而可以快速分离,与抗生素相比降低了开发成本,在含有某种病原体的环境中,存在特定噬菌体的可能性很高。不同于抗生素,噬菌体可以在体内增殖,同时这种增殖又受到宿主细菌的存在与否及宿主细菌数量的限制。噬菌体的作用仅限于感染部位,而对周围的细胞(如真核细胞)没有影响。最近的一项研究发现,噬菌体杀死病原性大肠杆菌的速度比β-内酰胺类抗生素快,同时噬菌体治疗释放的内毒素更少。
抗生素与噬菌体共同使用,可显著提高抗生素敏感性,降低抗生素的使用量,并且可以有效降低大肠杆菌的耐药性。大量临床实验证明,噬菌体和抗生素同时使用可以有效治疗禽类大肠杆菌病,且维持时间长,避免大肠杆菌病的反复发生,在实际生产过程中,抗生素与噬菌体同时使用,可以在保证治疗效果的前提下,降低抗生素的使用量,符合国家减抗替抗的要求,提高养殖效益,保证食品健康安全。
本发明在于响应国家全面禁抗的号令,解决细菌耐药性,抗生素滥用的问题,提供一株治疗大肠杆菌的且可降低抗生素耐药性的大肠杆菌噬菌体,扩充了噬菌体储备库为开发治疗大肠杆菌的抗生素替代品奠定了基础。
发明内容
本发明的目的在于提供一株可降低抗生素耐药性的大肠杆菌噬菌体,以替代抗生素在防治禽类养殖中的应用,并解决禽类动物发病急而治疗不及时,且因致病菌耐药性而导致用药无效等问题。
为实现上述目的,本发明采用如下技术方案:
一株可降低抗生素耐药性的大肠杆菌噬菌体RDP-EC-20059,透过电镜观察,该噬菌体头部呈多面体立体对称,包裹着核酸,直径约61nm,无尾。该噬菌体于2021年06月03日保藏于中国微生物菌种保藏管理委员会普通微生物中心,保藏地址为:北京市朝阳区北辰西路1号院3号,保藏编号CGMCC No.22493。
优选的,该大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059对养殖环境中大肠杆菌具有强裂解作用。
本发明的第二个目的在于,提供该大肠杆菌噬菌体RDP-EC-20059在制备预防和或治疗大肠杆菌引起的疾病的药物中的用途。
本发明的第三个目的在于,提供大肠杆菌噬菌体RDP-EC-20059在制备预防和或治疗大肠杆菌引起的疾病的饲料中的用途。
本发明的第四个目的在于,提供一种用于防治大肠杆菌的杀菌组合物,包括有效量的本发明大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059。
本发明的第五个目的在于,提供一种大肠杆菌噬菌体的应用,该目的是通过将大肠杆菌噬菌体RDP-EC-20059用作为由大肠杆菌引起的细菌感染提供潜在的治疗药物或保健品来实现的。
本发明的第六个目的在于提供一种预防和或治疗大肠杆菌引起的疾病的添加剂,其有效成分包括本发明的大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059。
本发明的第七个目的在于提供一种禽类养殖环境的清洁剂或消毒剂,其组成成分包括本发明的大肠杆菌噬菌体RDP-EC-20059。
本发明的第八个目的在于提供该大肠杆菌噬菌体的应用,该目的是通过将大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059用作于生物杀菌剂来实现的。
本发明的第九个目的在于提供该大肠杆菌噬菌体的应用,该目的是通过将大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059用于治疗和预防因大肠杆菌引起的细菌感染的医疗器械来实现的。
本发明的有益效果体现在:
(1)本发明发现并分离了一株致病性大肠杆菌BE-20058,并以该致病性大肠杆菌BE-20058为宿主分离得到了大肠杆菌噬菌体RDP-EC-20059,该噬菌体RDP-EC-20059对禽类养殖环境中致病性大肠杆菌BE-20058具有强裂解效用,为工业化生产噬菌体用于禽类养殖环境中致病性大肠杆菌BE-20058的防治提供了噬菌体来源;
(2)本发明所提供的大肠杆菌噬菌体RDP-EC-20059是从自然界中分离的烈性噬菌体供试噬菌体不含毒力基因或不良基因;本发明未对供试噬菌体进行任何遗传修饰;
(3)本发明提供的大肠杆菌噬菌体RDP-EC-20059,当水体中加入大肠杆菌噬菌体RDP-EC-20059后,3小时内有明显的裂解效果,具有较强的裂解活性,表现出了良好的应用前景。
(4)本发明提供的大肠杆菌噬菌体RDP-EC-20059,在pH为5-9中作用1小时,其效价较高,可在1011pfu/mL之上,适宜生长在中性偏弱酸性的环境中,效价较高,安全有效;
(5)本发明提供的大肠杆菌噬菌体RDP-EC-20059在防控禽类动物致病性大肠杆菌弧菌中具有良好的应用前景。
(6)本发明所提供的大肠杆菌噬菌体RDP-EC-20059可作为应用于环境消毒的各种产品的有效成分。
(7)本发明大肠杆菌噬菌体RDP-EC-20059可作为应用于环境消毒的各种产品的有效成分,例如包括但不限于以液体浸泡、喷洒、与含水性载体联合使用等形式对配水系统、医疗设施、养殖业设施、公共及私人设施或其他环境表面进行消毒去污,可有效控制目标细菌的生长及活性。所述液体浸泡、喷洒形式包括但不限于洗涤剂、消毒剂、去污剂等;所述含水性载体包括但不限于磷酸盐缓冲液、LB培养基、氯游离水等。
(6)本发明的大肠杆菌噬菌体RDP-EC-20059,可以有效杀灭禽类表面的大肠杆菌并防治禽类在保存过程中大肠杆菌的污染,可作为禽类食品防护的各种产品的有效成分。本发明包括但不限于以液体浸泡、喷洒、与合成组分联合使用等形式对由大肠杆菌侵染所导致的食品腐坏进行预防,尤其适用于熟食或不宜灭菌的食品。所述液体浸泡、喷洒形式包括但不限于食品除菌剂、食品消毒剂、食品防腐剂等;本发明中合成组分包括但不限于苯甲酸、苯甲酸钠、山梨酸、山梨酸钾、丙酸钙等。
(7)本发明的大肠杆菌噬菌体RDP-EC-20059,可用于制备组合物,试剂,或试剂盒;可应用于大肠杆菌的快速检测,其包括但不限于以试纸、试剂盒等形式对目标样本中的大肠杆菌进行检测,或对临床样本中的目标致病菌进行筛选,可有效确保检测的灵敏度;
(8)本发明的大肠杆菌噬菌体RDP-EC-20059可以单独或混合使用,用作为生物杀菌剂,饲料添加剂,或因大肠杆菌引起的细菌感染的治疗药物、保健品及医疗器械;大肠杆菌噬菌体RDP-EC-20059可应用于治疗或预防由大肠杆菌引起的感染性疾病;
(9)本发明的大肠杆菌噬菌体RDP-EC-20059可以应用于工业生产,可由宿主菌特异性扩增,可应用标准病毒纯化方法高度纯化,具有极好的推广前景。本领域技术人员可以根据本发明的记载及本领域常识将本发明所述大肠杆菌噬菌体RDP-EC-20059或其组合物制备成应用于医疗,检测,消毒及食品防护等方面的各种产品加以工业应用。产品形式可包括但不限于以载体携带、浓缩注射或药剂浸泡等形式施用于被防治的寄主体表、口部、直肠、胸膜内部等部位;作为实施方案之一,所述载体携带形式包括但不限于口服含水性载体、口服无水性载体、乳膏制剂等;浓缩注射形式包括但不限于疫苗注射、胸膜腔注射、经脉注射等;药剂浸泡形式包括但不限于气雾剂、漂洗剂等。
附图说明
本发明上述的以及其他的特征、性质和优势将通过下面结合附图和实施例的描述而变得更加明显:
图1为本发明噬菌体RDP-EC-20059的电镜图;
图2为本发明噬菌体RDP-EC-20059热稳定性示意图。
图3为本发明噬菌体RDP-EC-20059的酸碱稳定性示意图;
图4为本发明噬菌体RDP-EC-20059遗传稳定试验示意图;
图5为本发明噬菌体RDP-EC-20059一步生长曲线示意图;
图6为本发明噬菌体RDP-EC-20059对宿主菌BE-20058的裂解曲线图;
图7为本发明噬菌体RDP-EC-20059和头孢曲松钠的协同作用示意图;
图8为本发明噬菌体RDP-EC-20059和头孢噻胯钠的协同作用示意图;
图9为本发明噬菌体RDP-EC-20059和氨苄青霉素的协同作用示意图;
图10为本发明噬菌体RDP-EC-20059和阿莫西林的协同作用示意图;
图11为本发明噬菌体制成冻干粉后的存储稳定性试验示意图。
具体实施方式
下面结合附图和实施例对本发明做进一步说明。以下实施例将有助于本领域的技术人员进一步理解本发明,但不以任何形式限制本发明。应当指出的是,对本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进。这些都属于本发明的保护范围。
本发明使用从青岛即墨一养殖场的患病白羽肉鸡的肝脏部位分离大肠杆菌BE-20058,并通过实验确定了BE-20058的致病性和耐药性,以BE-20058为宿主,从养殖污水中分离得到一株裂解性大肠杆菌噬菌体,并通过全基因组序列确定了RDP-EC-20059的基因型。
实施例1病原菌及噬菌体的分离及鉴定
(1)致病性大肠杆菌BE-20058的分离及其鉴定
从山东青岛即墨发病养殖鸡场采样,无菌操作取病鸡肝脏,在选择性培养基(麦康凯琼脂培养基)上划线,37℃培养18-24h后,在培养基上形成圆形、扁平、边缘整齐、表面光滑湿润的红色菌落,挑取典型菌落继续划线纯化3次,然后挑取单菌落接种于5mL LB肉汤中,37℃,200rpm振荡培养8h,得到均匀浑浊的细菌悬浮液。再通过16sRNA分子鉴定确定为大肠杆菌属,进一步通过血清鉴定确定其血清型为O78,O78具有较强的致病性,并且可以通过食物链等方法传播给人类,具有较强的致病感染力。根据实验室命名规则将其命名为BE-20058,并保存于-80℃冰箱。
(2)噬菌体分离及鉴定
本发明试验用污水样品为2020年从青岛即墨养殖户周边污水中采集,作为噬菌体分离的样品。
污水处理:从山东青岛即墨养殖场采取污水,10000rpm,5min离心,取上清液过0.22μm滤器,收集过滤清液备用。
制备混合菌悬液:取0.2mL菌悬液和0.3mL过滤液加入5mL LB肉汤中,37℃,200rpm振荡培养过夜,然后10000rpm,5min离心,取上清液过0.22μm滤器,收集过滤清液备用。
噬菌体分离:采用双平板法分离噬菌体,取混合菌悬液过滤液0.2mL和大肠杆菌菌悬液0.2mL混合均匀后,37℃水浴10min,然后铺双平板,37℃培养8-12h后,观察结果。若有噬菌体,平板上会有透亮噬菌斑。挑取单个噬菌斑于1mL生理盐水中,37℃水浴30min后,10000rpm,5min离心,将上清液过0.22μm的滤器,取0.1mL过滤液和0.2mL菌悬液37℃水浴10min,铺双平板,37℃培养箱培养8-12h纯化,照此步骤纯化3-4次,至噬菌斑大小均匀为止,得到一株噬菌体,将其命名为RDP-EC-20059。RDP-EC-20059在双平板形成的噬菌斑直径在1mm-2mm。
(3)噬菌体的保藏
将噬菌体增殖液与60%的甘油按照1:1的比例混合后,于液氮中保存。
实施例2噬菌体的电镜观察
取20μL含噬菌体粗制颗粒的液体滴于铜网上,自然沉淀15min,并用滤纸从侧面吸去多余液体,加一滴2%的磷钨酸(PTA)于铜网上对噬菌体染色10min,然后用滤纸从侧面吸去染色液,待样品干燥后用电子显微镜观察噬菌体形态。
由电镜照片图1可看出,噬菌体RDP-EC-20059有一个多面体立体对称的头部,包裹着核酸,直径约61nm,无尾。
实施例3噬菌体基因组测序
通过对单株噬菌体的富集培养后,在4℃条件下8000g离心15分钟,加入10%PEG8000和0.5M NaCl静置过夜,再加入等量氯仿混匀,静置分层后5000g下离心10min,去除氯仿层和PEG层后,加入限制性核酸内切酶消化处理,并采用梯度密度氯化铯条件下悬浮噬菌体,后期采用TM缓冲液透析3次,每次30min,送华大基因生物测序公司进行全基因组测序。结果如序列表所示。
实施例4:噬菌体热稳定性的测定
将噬菌体原液分装到50毫升灭菌离心管中,分别在35℃、40℃、45℃、50℃、55℃、60℃、65℃、70℃、80℃和90℃的条件下孵育30min和60min,然后用生理盐水10倍梯度稀释后,铺双平板测定其效价。
由图2可知,随温度的升高和时间的延长,噬菌体效价逐渐下降,在55℃条件下处理30min和60min,噬菌体效价仅下降1个数量级,说明该噬菌体具有较好的耐高温性能。这在噬菌体的生产、运输和存储中有非常重要的参考价值。
实施例5噬菌体酸碱稳定性的测定
用稀盐酸和稀NaOH溶液调节生理盐水的酸碱度,配成PH值为2、3、4、5、6、7、8、9、10、11、12的缓冲液,再用配置好的缓冲溶液将噬菌体稀释成1*1012pfu/mL,将稀释液在37℃下,水浴1h,用生理盐水10倍比稀释后铺双平板测定效价。37℃倒置培养4-6h后统计结果。
由图3可知,在pH5-9的条件下,37℃培养1h后,其效价仅下降1个数量级,效价仍保持在1011pfu/mL以上,说明RDP-EC-20059有较好的耐酸碱性能。这在噬菌体治疗疾病过程中有很好的应用价值,噬菌体可以对酸碱有较好的耐受性,并且噬菌体的效价较高,这可以保证有足够数量的噬菌体通过消化道。
实施例6稳定性遗传实验
将RDP-EC-20059连续传代30次,每代培养基中加入等量的RDP-EC-20059和BE-20058,每代培养时间6h,然后铺双平板,测定其效价。
由图4可知,将RDP-EC-20059连续传30代后,测定其效价,其效价稳定在1011pfu/mL以上,说明该噬菌体具有较好的遗传稳定性,在连续传代过程中,均保持较高的活性,这说明RDP-EC-20059适合工业化生产。
实施例7噬菌体的一步生长曲线试验
取对数生长期的大肠杆菌悬液,按照最佳感染复数的比例接种大肠杆菌BE-20058和噬菌体RDP-EC-20059,在37℃的条件下,水浴10min,然后常温下12000r/min离心5min,弃上清液,除去未吸附在宿主上的游离噬菌体,如此用LB肉汤培养基洗涤两次。再将沉淀重悬于37℃的LB肉汤培养基中,迅速置于37℃200r/min的摇床中振荡培养并计时。定时取样测定其效价,以时间为横坐标,噬菌体效价对数值为纵坐标,绘制生长曲线,得出噬菌体的潜伏期、裂解期,并计算出平均裂解量。平均裂解量=暴发末期噬菌体滴度/感染初期宿主菌浓度。
由图5可知,噬菌体感染宿主菌后的30min内效价没有明显变化,表明其潜伏期约30min,感染后30-90min内噬菌体的滴度明显上升,之后趋于稳定,表明噬菌体裂解期约为60min。通过计算,噬菌体裂解量约为173PFU/感染细胞,表明噬菌体RDP-EC-20059具有潜伏期短、裂解力强和高复制的特点。
实施例8噬菌体对宿主裂解曲线
将培养6h的宿主菌悬液以2:100的比例接种到100mL LB培养基中,37℃200rpm振荡培养2h(OD约0.15,约5.0*108cfu/mL)将菌悬液分装在4个灭菌的锥形瓶中,以最佳感染复数,向其中3个加入噬菌体增殖液0.2mL(约3.6*1011pfu/mL,经0.22μm膜过滤),同时以不加噬菌体的作为对照,取其平均值。
由图6可知,大肠杆菌噬菌体RDP-EC-20059加入到宿主菌BE-20058菌悬液中,因为噬菌体对宿主有较强的裂解作用,接入噬菌体后OD600吸光度逐渐下降,随着时间延长,未被裂解是宿主菌开始开始繁殖,OD600吸光度逐渐增大,直至6小时后,两者趋于一致。在3小时内,噬菌体可以有效抑制宿主菌的生长,这在动物疾病治疗中有非常重要的应用价值。
实施例9噬菌体与抗生素的协同作用试验
接种3%的宿主BE-20058至LB肉汤培养基中,按照抗生素的最低抑菌浓度加入相应的抗生素,然后再添加1*1011pfu/mL的噬菌体RDP-EC-20059,定时测定其OD600吸光度的变化。
由图7-图10可知,随着时间的延长,OD600值逐渐增大,只加入宿主BE-20058的一组,其OD600值迅速升高,并且随着时间的延长逐渐升高,加入噬菌体RDP-EC-20059和宿主BE-20058的一组,其OD600值也是迅速升高,但是始终低于只加入宿主的一组。添加抗生素和宿主BE-20058的一组,其OD值在120小时内缓慢增加,并且吸光度始终低于1.00,添加宿主BE-20058、噬菌体RDP-EC-20059和抗生素的一组,其OD600值始终最低,说明该噬菌体与抗生素组合可以有效抑制宿主的生长,混合使用优于单独使用的效果。该噬菌体和可以提高相应抗生素的敏感性,与抗生素混合使用可降低大肠杆菌的耐药性,在生产过程中可以降低抗生素的使用量。
实施例10RTD实验
在平板上划分区域,将一滴宿主菌(约100μL)滴加到区域中心处,晾干,将不同稀释度的一滴噬菌体液滴加到宿主菌的斑点上,晾干,37℃培养16-24h。根据宿主菌生长状况,凡是不能连片生长的,称为CL浓度(CL浓度是可以完全性裂解环境中宿主菌的浓度,可以用于指导生产实践的稀释方案),结果发现,RDP-EC-20059在稀释106倍后对宿主菌仍有较好的裂解效果。
实施例11:裂解率实验
无菌条件下,分别取1mL样品和1mL宿主菌菌液(1×105CFU/mL),37℃孵育15分钟,混匀后用生理盐水稀释至10-1-10-3个梯度,每个梯度取100μL涂布于LB琼脂平板上,置于37℃,培养24小时,每个梯度重复两次。同时取1mL生理盐水和1mL宿主菌菌液(1×105CFU/mL)作为空白对照,重复以上步骤。选取30-300个菌落数的平板进行计数。该试验重复3次,取其平均值。噬菌体裂解率=(1-处理组菌落数/对照组菌落数)×100%。
结果发现,RDP-EC-20059的裂解率达99%,对宿主有较好的裂解效果,适合在养殖过程中使用。
实施例12:最佳感染复数的测定
按照感染复数为100、10、1、0.1、0.01的比例将噬菌体增殖液和宿主加入LB肉汤中,并且确保培养体系的总体积相同。于37℃200rpm振荡培养8h后,常温下12000r/min离心5min,取上清液铺双平板测定其效价。结果如表1所示。
表1最佳感染复数试验
由表1可知,当感染复数为1时,培养8h后,增殖液较为清澈,效价最高,说明RDP-EC-20059的最佳感染复数为1。
实施例13噬菌体工业化生产工艺
1、种子制备
(1)宿主种子制备:无菌环境下挑取单菌落接种于5mL的LB液体培养基,37℃,200rpm培养4-6h,将培养后的宿主菌以5%的接种量接种于100mL的LB液体培养基,37℃,200rpm培养4-6h,再以5%的接种量接种于1000mL的LB液体培养基,37℃,150rpm培养4-6h,培养好的宿主菌种子置于4℃冰箱备用。
(2)噬菌体种子制备:将保存的噬菌体种子适当稀释后,取200μL与200μL宿主菌置于上层培养基中,倒双层平板,37℃,培8-12h,选取噬菌斑呈现云雾状的平板,用5mL的LB液体培养基洗下上层培养基,然后12000rpm,10min离心,过0.22μm的滤膜,收集清液。
清液与宿主分别以2%的比例接种于5mL的LB培养基,37℃,200rpm培养4-8h(培养至增殖液变澄清或者出现絮状物为止),将培养好的噬菌体和宿主各以2%的接种量同时接种于100mL的LB液体培养基,37℃,200rpm培养4-8h,再将培养好的噬菌体和宿主各以2%的接种量同时接种于1000mL的LB液体培养基,37℃,200rpm培养4-8h,培养好的噬菌体种子置于4℃冰箱备用。
2、噬菌体增殖:
将制备好的宿主菌以3%的比例接种于种子发酵罐中,培养3-4h后,OD600值在0.7-0.9,将宿主菌通过移种管道接种于发酵罐,接种量为5%,宿主在种子罐中培养3-4h,OD在0.7-0.9时以最佳感染复数的接种量接入噬菌体,增殖2h后,以流加的方式加入增殖液体积10%的宿主菌,流加的宿主的种龄3-6h,流加时间控制是1-2h,然后再培养6-8h,待溶氧反升,pH趋于稳定,结束增值。
注:发酵罐参数:种子罐200-300rpm,37℃,通气1:0.6-0.8vvm。发酵罐:120-150pm,37℃,通气1:0.6-0.8vvm。
培养基成分:酵母浸粉3%,甘油0.3%,氯化钠0.8%,磷酸二氢钾0.2%,磷酸氢二钾0.2%,氯化镁20ppm,氯化镁20ppm。
3、噬菌体后处理工艺
(1)离心:将增殖完成的噬菌体,用碟式离心机离心,6000rpm,流速≤200L/H,去除未裂解的宿主和细菌碎片等,然后再用管式离心机离心,17000rpm,流速≤50L/H,进一步去除宿主菌菌和细胞碎片。
(2)采用600nm的陶瓷膜进一步过滤除菌。
(3)过滤除菌:浓缩后的噬菌体采用三级过滤(聚丙烯0.45μm,聚醚砜1μm,聚醚砜0.22μm)除菌。
(4)浓缩:采用200nm中空纤维膜进行浓缩,浓缩至原来体积1/2。
4、真空冷冻干燥
4.1噬菌体冻干
4.1.1样品前处理:按照10%脱脂奶粉,5%吡咯烷酮,5%海藻糖,0.5%维生素C添加至浓缩后的噬菌体液中,搅拌均匀。
4.1.2将搅拌均匀的噬菌体,平均放置在冻干机料盘中,开启冻干机,冻干程序如下表。
4.1.3冻干粉存储稳定性:将制备好的冻干粉和喷雾干燥粉分装,然后置4℃环境下存储,定期对噬菌体的效价进行测量,结果图11所示。
由图11可知,采用常规喷雾干燥制备的样品,效价由初始的10.71pfu/g降低到5.63pfu/g,在24个月内效价降低了6个数量级。冻干粉在存储24个月后,效价由最初的12.61pfu/g,降低到11.26pfu/g,存储稳定性好,说明该噬菌体可以采用该工艺生产,冻干曲线和冻干保护剂可以有效保证冻干粉在存储期间的活性。
应当指出的是,具体实施方式只是本发明比较有代表性的例子,显然本发明的技术方案不限于上述实施例,还可以有很多变形。本领域的普通技术人员,以本发明所明确公开的或根据文件的书面描述毫无异议的得到的,均应认为是本专利所要保护的范围。
序列表
<110> 瑞科盟(青岛)生物工程有限公司
<120> 一株可降低抗生素耐药性的大肠杆菌噬菌体及其应用
<160> 1
<170> SIPOSequenceListing 1.0
<210> 1
<211> 39427
<212> DNA
<213> 2 Ambystoma laterale x Ambystoma jeffersonianum
<400> 1
tgagaagaag atagctctgg ttctagatgg tgactatctg gtctactctt ctatggctgc 60
tgccgaggac gagacagact ggggcgatga catctggacc cttatctgcg accatgagaa 120
ggctcgtcgt atccttgaga acaccatcgc tgaaatcgtt aagaagcgca aggcgtggaa 180
agacgctaag attgtgatgt gctttactga cgataacaac tggcgtaagg acgttctgcc 240
tacctataag gccaaccgta aaggttctcg caagcctgta ggttacaaga agttcgtagc 300
agaagtgatg gctgacccac ggttcaacag cttccttcgt cctacgcttg agggtgatga 360
ctgtatgggt atcatcggga ccagacctca gattgtcgga tgtgaccatg cggtgctggt 420
gtcctgtgat aaggacttca agaccatccc gaactgcgag ttcttctggt taaccactgg 480
tgaaatcctg agtcatacga ctgccgaggc agactactgg cacatggagc agaccatcaa 540
gggtgacact acagatggct acggtggcat tccggggatg ggtgaggaca ccactcgtgc 600
gttccttgac gagccgtact acttcgtgca ggagagccgt gagcttaaga ctggcaagaa 660
caaaggccag attaagactg agtggaagaa gtatccgaag cgtgaagaca tgacgctgtg 720
ggactgcatg gtgactctgg ctgagaaagc tgggatgacc gaagaagaac ttctggtcca 780
agctcaggtc gctcgtattt gtcgagcctc cgactacgac cctaagtcca aggaggtcat 840
cctgtggaca ccatccatgt aatttactgg gccggacttc tggcccttta ctgcatgtac 900
aagtggttcg ggtcgaacaa ccgtcctaaa cactgagtct aaccgatagt catatcctat 960
caatccaaca gtcatccata ggtgaaacac taaactatca ctatagggac tttaggacct 1020
aagatatgac tataagatag actttagtct taacttaaag aggagattca agatggcgat 1080
taatgctatt gaaaacgttg ttaagcagtt acaggaagaa agacttgatg tcccgaacat 1140
ctcccagtct gccatccagt tcctgcacgt attgttcaac gcaagctacg ctgagaagat 1200
gggagctatc agtctcctca agcagcaggg ctacagcgat gcgttcattg ccgggtttat 1260
caagggtctc cagtattgtt ctgacactct cgactctgcg attgctatgc gtcgtgagct 1320
gaaagatacc gttcagttcg attaactgta ggagggacta tgtgtttcag tccaaagatt 1380
agcactccga agccttcggt ccaagcacct gaaccagcac ctctgagtga ggaagttgcg 1440
tcagttgaca tcggttccga atcggacgtg gacaccaacg agaccaaagg tatcaaagac 1500
ctgaaggtca agaaggagtc tgcacctaaa gataaatcgt cagtgagtcg tgctatgcga 1560
gcctctggcg taaacatggg gtaagacaat gctaccatat ctcaactcac gcgaaggtcg 1620
ccacatgtgc gcttgtcgcc tctgggaaga cgggcagtct aacttcaagt cattcgagga 1680
cttcaaggct catacttacc gtatggctga cgagtttgat ggtgaagagt acacaatcta 1740
cgatgtctca ggtcagccag tagcgtatct ctacatgctg gctaccgcat cctggcaccg 1800
acctactccc ggtcttgacc tttcaatcgt cgctattcgt cgtgactcgc agtcctcccg 1860
caaggttctt gagactgtca ggcacatcat agacgaagag tgtaagcgtt ggggtcttgg 1920
ctggtattct cgtgtcaagc atgtttctgg gtcggtagac atcgtaacaa ccaagtgcgt 1980
tagcacgaac aaggagatta accgtgggta aatcaatcag taaggctttc aagaaagtag 2040
taaaaggtgc gttagggaca gttggtctcg gtaaggacga ggcaccaaag gtagttgagg 2100
ctccgacccc agcagcagca cccgtggaag taccgaacga caaagtggaa gatgtggata 2160
ctgaagcaac cgcatctgac gagaagaaag tgaagcgttc cggtaagcgt agccttcagg 2220
tctctcgtac ctctggtggc ggtatttcta tttaaggagg tgacgaatgg ctgaacgtga 2280
agggttcgct gctgaaggcg cgaagtcagt ttatgataga ttgaagaacg gacgacagcc 2340
ttacgagacc cgcgcacaga actgcgctgc cgtgaccatc ccatcgctat ttcctaagga 2400
gtcagacaac tcgtctacgg aatacacaac tccgtggcaa gctgtaggtg ctcgctgttt 2460
gaacaacttg gctgcaaagc tgatgttggc gttattccct cagtcaccgt ggatgcgact 2520
gacagtctcc gaatatgagg ccaagacctt gagtcaggac tcagaggctg ctgctcgtgt 2580
tgacgaaggg ctggctatgg tcgagcgtgt gttgatggcc tacatggaga ccaacagttt 2640
ccgtgtccca ttgttcgaag ctctgaagca gcttatcgtc tccggtaact gtctgctcta 2700
tattccagag cctgaacagg gaacctacag tcctatgcga atgtaccgat tggtgtcata 2760
cgttgttcaa cgtgatgctt tcggtaacat cttgcagatt gtgactctcg acaaggtagc 2820
gtttagtgct ctaccggaag acgtgaagtc tcaactcaac gcagacgact atgagcctga 2880
caccgagcta gaagtgtata cgcacatcta ccgtcaggac gacgagtatc tgcgctacga 2940
ggaagttgaa ggcattgagg tagcagggac cgagggttct tacccactga ctgcatgtcc 3000
gtacatcccg gtacgaatgg ttcgactgga tggtgaagac tatggtcgtt cttactgcga 3060
ggagtatctg ggagacctga actcgctgga gacgattaca gaagctatca caaaaatggc 3120
taaggtagcc tccaaggtgg tgggcctcgt taacccgaac ggtatcacgc agcctcgtcg 3180
tctgaacaag gcggctacag gtgagttcgt ggctggtcgc gttgaggata tcaacttcct 3240
gcaactgacg aaaggtcagg actttacgat tgctaagtcg gtggctgacg ctatcgagca 3300
acgtttaggc tgggccttcc ttcttaatag tgctgttcag cgtaatgccg agcgagtcac 3360
tgctgaagag attcgttatg ttgctggcga actggaggcg accttaggtg gtgtgtactc 3420
agtacagtca caagagcttc agttacctat cgtccgtgta ctgatgaacc agcttcagtc 3480
tgctggaatg attcctgacc ttccgaaaga agcggtagag cctacggtct ccactggtct 3540
ggaagctctg ggccgtggtc aggacttgga gaagctgact caggcggtta acatgatgac 3600
cgggctacag cctctgcaac aggaccctga catcaacttg ccgaccctga agctgcgact 3660
gctgaatgcc ttaggcattg acaccgctgg tctgcttctg actcaggacg agaagatgca 3720
acgtattgct gaacaatccg ctcaaggagc tgtggtcaac ggtgcgtctg ctgctggcgc 3780
taacatgggt gctgctgtag gtcagggagc tggtgaggac atggctcaag cctaaactat 3840
cactatagga acaccgaaag taagagcgac taagccgacc atatggtagc cgttagtccc 3900
acactgcaag taggtgttta cctattaacg acttaaagga gaatgactca atgtctcaat 3960
cagtttatgc cgagttcggc gttagctcta atgcaatcac tggttccgtt gaggacctga 4020
acgaacacca gaagtctatg cttgaacagg acgtagctgt tcgtgatggc gacgacgcta 4080
ttaccttcaa gcaactggaa gccgaaaacg aagaggcgac cgaagaagac gagaacgtcg 4140
aagagactga aggtgaagaa gaccacgagt cagatgacga agagtctgat acagatggtg 4200
agcagcctga gttcatcgaa ctgggtgatg caccgaaaga gctgaccgaa agtgtcaccg 4260
ctctggatga aaacgaagct gcattcgacg acatggtgtc ttctgctgta gaagctggca 4320
aggtcactgc tgatgaaatt accgctatca aggctgaata cgccaaggac ggtaagctgt 4380
ctgacgcatc ctacgctaag ttgcaggaag caggttacac caagcgtttc gtagattcgt 4440
ttgtacgtgg tcaggaagct ctggctgaac agtatgctgc tggtgttgtt cgctacgctg 4500
gtggtgctga acagttcaat cgaatcctgt ctcaccttga atccaacgac ccgtcaactc 4560
gtgaagcact tgaagctgct atcgtccgta aggacattgc gactaccaaa gctctgctga 4620
atctggctgg caagactctt ggtaaagctg taggcgttaa acctcagcgt accatcacca 4680
atcaggctaa acctgtggtc gcacctaagg ctcctcagac cgaagcattc agctcaaaag 4740
ctgacatgat taaggctatg agtgacccgc gatacctgcg tgacgctaag tacacgatgg 4800
aagttcgcgc taaggtagct gcctcaagcc tgtaggacta aactatcact atagggagac 4860
caagagaaag actcaaggtt tccctattac ttcagtccat acggattggg catacagtaa 4920
gtaataaact ttatctttca attgaatagg agaattatca tatggcaaac gttccgggtc 4980
agaaaattgg tacagaccaa ggtaaaggta aatccagttc cgacgctctg gcgttgttcc 5040
tgaaggtctt tgctggtgaa gtcctgaccg cattcactcg ccgctctgta actgctgaca 5100
agcatattgt ccgtaccatt cagaacggta agtctgctca gttcccggtc atgggtcgca 5160
cctctggtgt gtatctggct ccgggtgagc gactgtcaga taagcgtaaa ggtatcaaac 5220
ataccgagaa agtgattacc attgatggtc tgctgactgc cgatgtgatg attttcgaca 5280
ttgaagatgc gatgaaccac tatgacgtgg ctggtgaata ttccaaccag ttgggtgaag 5340
ctctggctat cgctgccgat ggtgctgttc tggctgaaat ggctatcctg tgtaacctcc 5400
cggctgcatc caacgagaac atcgctggtc tgggtactgc gtccgtactg gaagttggta 5460
agaaagctga cctcgacacc ccggctaaac tgggtgaagc aatcatcggt caactgacca 5520
ttgctcgtgc gaagctgacc tccaactacg ttcctgctgg cgaccgttac ttctacacca 5580
cgccggacaa ctactctgca atcctcgcgg ctctgatgcc aaacgctgct aactatgctg 5640
cgctgattga cccagagact ggtaacatcc gtaacgtgat gggcttcgtt gttgttgaag 5700
ttccgcatct ggtacagggt ggtgctggtg agacccgtgg tgctgatggt atcactatcg 5760
cttccggtca gaaacacgca ttcccggcga ctgctactgg cgatgttaaa gttgctatgg 5820
acaacgttgt gggcctgttc tctcaccgtt ctgctgtggg tactgtgaag ctgcgtgact 5880
tggcgctgga acgtgaccgt gatgtcgatg ctcagggcga cctgattgtt ggtaagtacg 5940
ctatgggtca cggtggtctg cgtcctgaag cggctggtgc actggttttc agcccagcgg 6000
cgtaagcacc tttagccaac ctaacgtcgc tacagtagcg gctgagcctg aagaggagac 6060
tctaactcct caacagaaag ctgcgcgtac tcgtgctgcg aacagggccg ctaaactggc 6120
tgagtccaac aactaataga aaccccttgg gtgccttcgg gtgcttgagg ggtttttttt 6180
tgctcaaagg agaatacatg gtctacgcac taatgttctc aggactattt gttagtttct 6240
gggcgtatct cattctaacg ggaccttgta gtccttacga taaataggag actcaatgtc 6300
aatctttatc acatccaacg ctaacgagga cctgaacgct gtcaacgata tgctggctgc 6360
tattggtgaa ccagcagtcc tccaacttga cgataccaac gctgatgttc agaatgctat 6420
ccgtatcctg accagagtta atcgtcaggt ccaagccaaa gggtggaact tcaatatcaa 6480
tgaggccaag gtcttatctc ctaacctcaa ggagaacaag attccatacc taccaactta 6540
tcttcgggtc atgactacag gttctgccag ctactacacc aacatgggcg ggtttctgta 6600
cgacctcagc actcagtcca cgaccttcac cgaccctatt acagtcgaga tggtggagct 6660
gaagtcattc aacgagatgc cgacctgctt ccgtgactac atcgtgacga aggcaagccg 6720
agagttcaac gctaagttct tcggtagccc agagtctgaa ctgtatctcc gtgagcagga 6780
acaagaactg taccagcaag tcatggagta cgagatggat acgggtcgct acaacatgat 6840
gtctgacatc gggagggact aatggctatc catcccatca tctctcaaac atctagcttt 6900
cagcctatca gcgagggcat taagacctgt gacttacgtc catcctctcc taagattaag 6960
gctggtgact ggctgattat ccacgagtgg gacaacggga ttaccggacg acaggttaca 7020
cgaaaggtga ctcacgtctc tccgtgccta gagctggaca acttcgttct cttaagtttc 7080
aactgaggag gtgttatgcc actttataca caatccatta agaatctgaa gggtggcatt 7140
agccagcagc ctgacatcct caggttccaa gaccaaggtg agacacagat taacgggtgg 7200
tcatctgaga gtgatggact ccagaagcga ccaccaacag tcttcgttaa gcgcttagct 7260
aagaacaagc tgacaccaat cactgacatc tcaaagttcc acctgattaa ccgtgatgag 7320
actgagcagt attacatcgt gttcaccggg acaaccattc tggtctttga ccttgagggg 7380
aacccttaca cggtgtccgg ggcaatggac tacgttacaa cctcagcacc acgagatgac 7440
atccgtgtca ttactgtagc tgactacacg ttcattgtga acaggaagaa ggttgtcaag 7500
gaaggagcca ctaagtcaca ctctgggtat gacatgaagc accgggcgct gattaacctt 7560
cgtggtggtc agtacggtcg aacgttgaca gtctccatca acggtgggac caaggttgag 7620
cacaagacac ctcccggtaa taacgctgag actgacccac ctaaagtcga tgctcagtac 7680
ataggtgacg cgctgcgtac actactggtc gctgcttatc cggggtggac gttcaacctt 7740
gggtctggct accttgagat tgttgcccct agtgggacca gtattaactc agtggagacg 7800
acagacggtt acgccaacca gttaatcaca gcggtgattg acacagtgca gactatcagt 7860
aagctacctc tggcagcacc taatggctac atcattcgta tccaaggtga gaccaacagt 7920
agcgctgacg agtattacgt gatgtacgac tcttcgcgta agacttggcg tgagactgtg 7980
gagccgggcg tgactacagg tttcgacgcg actaccatgc ctcatgctct ggtccgtaag 8040
tccgatggga actttgagtt caagactctg gactggtcac agcgtggagc tggaaacgat 8100
gacaccaacc cgatgccttc cttcgtggac tcaaccatca atgatgtgtt cttctaccgt 8160
aaccgcttag ggttcctgtc tggagagaac gtcattatgt cccgctctgc tggatacttc 8220
gcgttcttcc ctaagagcgt ggcaaccctg agtgatgatg accctattga cgtagctgtg 8280
agtcaccctc gaatctccat cctgaagtat gccgttccgt tcgctgaaca gttgctcctg 8340
tggtctgacg aggtgcaatt cgtgatgacc agctctggtg tcctgacttc caagtctatc 8400
cagcttgaag taggctctga gttcgctgtg tctgacgagg cccgaccgtt cgctatcgga 8460
cgttcagtct tcttctcagc acctcgcggc tcgttcacca gcatcaaccg ttacttcgcg 8520
gtacaggacg tctctgacgt taaggacgct gatgatacga ctggacacgt tctgtcctac 8580
attcccaacg gagtgttcga catccaaggg tcctcgactg agaacttcat cacggtcact 8640
accactggtg ctaaggaccg tgtgtacatc tacaagttcc tgttcaaaga tggcgtacag 8700
ttgcaagcct catggtccca ctgggagttt gagactagtg acatgattat ggctactgcc 8760
tgtatcgggt ccaagatgta tatcgtccgt aagcactcat ggggtgtgga cttggagcga 8820
ctggagttca taaagcaggc tactgacatc gctggagagc cttaccgatt ccacatggat 8880
gggaagacag tcctgaccat tccgtctgat gcctacaacg tcaacacgaa caccacaacg 8940
ttcgacatga agttgggctt cgctggcgag ttaccttctc cgggtcgatt catcatggct 9000
gactccactg gtgcctacat tatgttgcct gaacaaagct gggacactac aaccaacgtt 9060
accgtcaaag gcgactgggc gggacgtaag gtcttcatcg gtcgggtcta cacgttcacc 9120
tatggtttct cacggttcct cattaagcac gaggaccaga acgggaccat cacggaggac 9180
agtgggcgct tgcagttacg cagagcttgg gtaaactacc agcagaccgg ggcgctagta 9240
atgaaggtta agaaccagta ccgagagttc ctcaacacac taaacggcta caagctggga 9300
cagcagaagg tcggagcggt gagtatcggt gatggtcagt tccgcttccc gatgaacggt 9360
gacgcaatga acacaaggtt aatccttgag tccgactatc cgaccccact gtccatcgtt 9420
gggtgcggct gggaggcttc atatgcccgt aaagccaaag ctatctaact aattgaatgg 9480
cctatagttt caccttaact atcactatag ggactatagg cccttaaggt tataaggaga 9540
ctttatgtat attcgtaagg ctacagatgt agacgtttgg tacgctgctt cacaacttac 9600
agatgacgac ttagaggagt gtaaagccaa ctacgggacc actgaaggtc tcactgaaag 9660
gctgcaagca cacctaacgt cttcatctgt ggttttgact aacgctctag gagagattta 9720
cgcctatggc ggcaaccaag gtgacaacgt ttggttccta accaccagaa tgaccgagcg 9780
tcttccacct aagggtaagc gagagttccg tgagagaatc atggagtatc gtgacaagat 9840
gctggaggaa tatccggtac tatggaacta cgtctgggag ggaaatacgt cccacatccg 9900
gtttctcaag tcaataggcg ctaagttcca cgacgataag tggaccagaa gtccagtgac 9960
tggagaggta ttcattctat tcacaatcac caaggaggaa acgtgactaa ggtctgtacc 10020
gtctgtaaaa ttgaaaagcc gctcgaggca ttctctcctc ggaaagactc taagtacctg 10080
gctataagcc agaaggggga ttagaaaatt tgcgaaccaa tttcaatcgg catgggcgta 10140
atgtctgtag ccggggccac tatgtccgca tcccaacagg ccaagactga aggagcagca 10200
attgacgctc agaaccgaca ggctcaggaa atggttaagc agatgaacta ctctgacgcc 10260
aacctgagga tgcaggagcg agacctgaag gagcagcaga tggctgaact gacagagacc 10320
acactcaacg gtattcgcaa tcagggtatg gtacgagctg cggttgctga gtcaggtctg 10380
gaaggtaact ctatggacag gattgaacgt caggtagaag gagatacagt caaggagcga 10440
gcagggatta ccgaaagtta caaccgtgac tatgcggcta tcttcgggaa ccgtatcgcc 10500
aacattgaga ataccaagtc tgctatccgt ggtcagggta aaatcatcaa gacaagccca 10560
ctggctcatg cacttaatgt tgctaacgcc gggattcagg gatacgccgt tggtaagtca 10620
ctatctggtg gttctgagtg atgctaaagg cacacctaca ggtcatagct aagaggagga 10680
ctaatggcta gtaatattga atcagctctg gctaatcgga ctatgggtcg tggcagagcg 10740
ccgggtaaaa ctatcgccgt caactatcaa gcagccagcg ttcaggctcc gactggtgac 10800
tccggtctgg ctcgtgcgtt gaccaacttc gttgagtctg ggactggatt gtacaagcag 10860
ttcaaggacg aggagaagac cagagctgac gagcggtcta acgagattat ccgtaagctg 10920
acacctcagc aaagacgaga ggctatccag aacggcacat tgctgtatca ggatgaccct 10980
tacgctatgg aagcacttcg agtcaagaca ggtcgtaacg ctgcctttgc tgtggatgac 11040
gagattaacg ttaagattca gaacggtgag ttccgtacac gtcaagacat ggaagagtat 11100
cgccaccagc gacttcagga tgccgctaag tcatacgctg aagaggcggg tattaaccct 11160
accgacgagt tcttccagcg tgggttcaat gataacatca cggaccgaaa catcgctatc 11220
tacgggtcct tcaataagta tttcagcaag cagtctgaag agacagcaat gttgaacact 11280
cgtattgagc tgaactcgtt ccttaacgat ggggacctga tgcgttcgcc cgagtctgga 11340
aagaccttca tggcctacct tcgggatgga ctgacgactg cttctatacc ttctgaccag 11400
agagcacgag aggtcatcac ccagacggtc cgtgacgcaa tccagaagtc aggaggctca 11460
aacttcctac agcaagtccg tggtgagcgt atcaccctta acggtgttga cgctaccatc 11520
gaagagattg tagggcctga cgtcttcaat gctgctatgg ttgaggccca aggtactgag 11580
tataaactgg tggctaagta tcaggaagac ttggcgttag gcgttcagtc tgcaattctt 11640
caggatgacc caaccattgg tcttgcccag attcagaaac tcaaggagca gaacaaccag 11700
cttcaacccg gtgaagaact tactcctcag cgccagatgc ttattaacgc cgaagccaca 11760
ctactggaag ctgtaaagcg taagtctgct gaacaggcga aggagaacac gaagttaatc 11820
cagacccaga acaagcaact ggtcattgac caagtttatc agcgacgtct ggctggggac 11880
aacgtgtcca ccaactatga ggaccttccg gtatctgaag ctacaggaga gtttaagcgt 11940
tcagacatga acaactatgc gtctgccaag ctacagcaga ttgaccagat ggacatccct 12000
gaggctgcta aggacgctca gaaggtggca ttgttaagag ctgacactaa caacggtccg 12060
ttccgtaatg ccttccagac tcttactcag gacgctgctg gtgagtggca agctgcggtc 12120
atccgtggac agtacgaccc agacaagatg caacgcttcg agtctcttcg tcgtgcctac 12180
actcaggacc cttcaagttt cgctgctcta tatcctgacc aagctcagtt gttcgctacg 12240
ttcgaccaga tggacaagac gggtcttgac cctcagacga tgattgaagc tgataagcaa 12300
gctgcaagtc aaagccgtga gatgcgcatg gagtcagaca aggcgtggaa ggagctgaag 12360
aacgactcca agaacaccca gttgtctcgc ctcccaacgt ctctggactc aagtgctcgt 12420
aaggtctggg actcatggta ctatcgtaca ggtaacgctg acgctgcaac tcagcagact 12480
caacgctggc tgaatgagaa taccgtaacg ttccagtctg aaggttctga cggtaagtcc 12540
atcggcatgg tttccaagca ccagcttatg gtcggggata acccagagtc atggcaggta 12600
ggtcgagaca ttatcgacac cgctcgtcag cagctcatta aggccaaccc ttgggtagtg 12660
aactctcagt tgtccgttgt tgaacagaac ggctctatct tcctccaaga cgctacaggg 12720
actattcgta ttcgctacga taaagaactt gtaggtaaac tataccgcga acaacagcag 12780
aaggcacaag atgccgcata cgctaaggca gaacgtgacg ctaacaagcg agcgcgtatc 12840
gtcgggacta aagctgctgg tgataaacgt cgagctgacc gagaggccaa catcgagaag 12900
cgcggtggaa tgtataatga cgtctcactg gagggtatcg caaacatact aatcggtaag 12960
gagtaacata atggcgactc gcggtattcg caatcacaac atcggaaaca tccgtaagtc 13020
caaagaccaa tgggaaggtt ctgtagggga tgatggagcg ttcgttatat tcgatagccc 13080
agactccggt gtcagagcat tagcaaagaa cctgatgtca tatggtcgac aaggctatga 13140
ctctatcgag aagattatca cccgctgggc acctcctaat gagaatgaca ctcaggcgta 13200
cattcagtcc gtggcttcgg ctactggcat cccggcgaca cagagtctcg acctgacgaa 13260
ccctgatgtc ctcgcctctc tgtctgaggc tatcggctac catgagactg gttcccggta 13320
tgaccctgag gtctacaagc tcggagtctc tcgcgcctta agtggtgcgg ggggtatcag 13380
cccaaagact ccaccagtaa gcgagaacgt atttgacgca ctcacggaag gactcaaggc 13440
taaacctaaa gtagctctgg gtgagaacct tccgaccgct gctggtctga acattgaggg 13500
tcaagcacct gaagctccca acgaatcgtt tggtgagatg ttctataagg ctactggaga 13560
gaccatgcag gaacgagagg accgctctac gtggttcggt ttcggtgtgg ctacagaagc 13620
tgaagtgaag aactctattg tcggcgtggc tatccgcgct ggtcagtccg aggactcact 13680
ggatgtcatt ggtgatgtgt tcaacccgac ccgctggaat aaccataagt ggactcgtga 13740
ggagctggac cagattcgta acgctggggt tctgcctcag tattacggag tcattactgg 13800
tggctcacct cagaacctga ccgagcttat taacttggct cttgagaacc agaagttgga 13860
ccaagagaaa gccaaggctg gtacaggcgc tcagttagct gctggtgtga ttggtgctgg 13920
tgtagaccct ctgacctacg ttcctatcgc tggacaggtg ggtaaaggcg gcaagctggt 13980
caacaagatg ttcaccgttg ctgctcaaac tggagcactt gctggtgtgt ccgagatggc 14040
ccgtacctca gtggctggtg gtaatgctca tgtggctgaa gctatccttg gtggtgctct 14100
cttcggtggt ggtatgactg ctatcgctga tgggttaggc agagccttag gtcgcaacac 14160
taatgagttc gccggaccag ctacacgtct tgaagctcgt gagaccgctc gtaacgttga 14220
tggtcaggac ctgtctcgtc tcccaattca ggaaggcgag cagaccttta gtcatcaagg 14280
cgttaagttc gctgacgttc cgaacgagcc gggtagtgta cgactggaag atggttcaat 14340
cctgattggt gagaaccctc tgaatcctag gacacgtcag gtctttgacg aagtgattga 14400
gcctgaacgt gctgctgctg gtgttaacct tggcgggctg accgagattg gcctgaagct 14460
gcttcggtct gagaaccctg agattcgtgg agtagctgct gacttagtgc gttcaccgac 14520
tggtatgcag tcaggtgcct caggtaaaat cgggaccact gcgtctgacg tattcgagag 14580
acttcgtgct gtggaccatc ggttctacaa cgacatcgac gatgcggtta ctgaggcgct 14640
caaggaccca tacttccaga cagcattctg gcgggataac tcagctctgc gtgaggatgt 14700
ttataagcga gtagctttgg ctattgaaga tggtagcggg aacctgaagg ctgaacttac 14760
tccgggggaa ctgaaagtct atgacctgct gaagaaccag tttgatgcaa agcgcgagat 14820
gatggagaac ccagcgatgt ttggtcgtac agacgctcag tctatctttc cgggtagtag 14880
attcaagggg acctacgttc ctgtagtcta tagctctcag atgaagcagc tttatatcaa 14940
ggagcttgga agcccagagg cattacagga ggcaatcaag aagtcatggc tgacaagcta 15000
tgcgtcaaga cctgaagtca aggcgcgagt ggacgagatg ttagcagagc agttacgggc 15060
atctcaacca gcagcaggta agactgtggg tactacacct aatcatcgtt cttctgtaga 15120
atcagcccgt gaccagatta aactggacga tgccgctaca caggcaagtg ataaggtagc 15180
ggaactaaaa gatgtcctga ccaacgctga gaagagagtt gcagaccgtg aaaagaaact 15240
tcagaactcc aaggacagac tggcttcgca cgaagctaag ctgaaggagt tggaagaaaa 15300
actagctgct aaacctaaga gcaagaccat tcctgttaag attgagagcc ggaagaagat 15360
gattgagacc cagaagtctc acgttcgtat taacaccgag cgtctcgact acatgaaggg 15420
gcaggctgat aaggtgcgag acagaatcac caaagcaaca actgaagctg aagcggctgt 15480
ggcagctgcc aaagggcaga agactgctgt agagggtcag gccactactg ctggtgaaac 15540
tacatctggt aacgcatctc aagcagcacc agaggtgact atggatatgg tagaaaagta 15600
tgctaatgat aaggcttatg gtatctccca tacagagcag ttcgaacgtt catccgtaat 15660
ggaagaaaac atcaacggtc tggttggttt ggagaacaat agcttccttg aggctcgtaa 15720
cctgttcgat aacgacatgg aaatcacctt gccaaatggt aagcagttca gcgtaaatag 15780
tctacgtgag tgggacatgg acaagattgt cccggcctac aaccgtcgag ttaatggtga 15840
cattgccatc atggctggta caggaaagac cacgaaggac atgaaggact tggttgagac 15900
catgatgaac aaggctggtg atgatggcaa gttgaaaggt gaggtatcta ccttacgtga 15960
caccttgaag attctcactg gtcgtgctcg acgtgatggt gctgacgatg cagccttctc 16020
taccgtgatg cgcacaatga cagacctatc gttcttcgct aagaatgcct acatgggtgt 16080
tcagaaccta acggagattg gtggtatgct agctcgtggt aacgttcgtg cattgctaca 16140
tggagtcccg atgttccgtg acctagcctt ccgtaacaag aaggtcgggg cctcagagat 16200
taaggacctg cacaacgtta tcttcggtaa ggaactggat gactcaatcc gtccgtcaaa 16260
acaggatgtc attgaccgtc tgcgagcgta cagtgccttg agtaaaccgt cagctacagc 16320
tctggggact gccaagtatt acactggcga acttgcagta cgctctccgt tcactaaagt 16380
cctaaacggt acgaccaact acctgttaga cgctggccgt caaggcttcc tgtctgacat 16440
cgttgagcat agtcttactg gtagtaagcg taagttcgat gaccgctggc tgaagaccgc 16500
tggtatctct gacgagcagt ggaagggtat taagtcccta atccgtgagt cagtgactcg 16560
tggtccagac gggaagtaca ccatcaagga taagaaggcg ttcagtcagg acccaagggc 16620
gatggacctg tggcgtatgg gtgacaccat agctgacgaa acgttgctac gtcctcataa 16680
gctgtccaac attgacgcca aggcttatgg tcctctcgct aagactgtcc ttcagtttaa 16740
gaacttcgtc atcaagtcca tcaatgggcg aaccatgcga accttctata acgccacgaa 16800
gaacaaccga gcgatggacg ctgccttgtc cactgtgatg tctatgggtc ttgctggcat 16860
ctattacatg gctcaggcgc acgtcaaggc ttacgctatg caggatggtc gagaccgtga 16920
ttacctcaag caagctctgg acccgacgat gattggctat gcggctctgt cccgtagttc 16980
acatctgggt ggacctcttg gggtcgctaa cattctgggt ggtatcgctg ggtatgagga 17040
cactaagatg ctccgttcgt ctatcctacc ccgctcacct acagagaagc ctgaacgtgc 17100
catcgcgtat ggtgctgcta caagtggccc tgtgatgaat gtcgtcggta acttcttgga 17160
gcaggtccca gctttcggct atgctgctaa cgttggcgct tcggcgtaca acttggctgg 17220
ctacctcaag gctgataccc gtgtcaacga gcgagactac atgaccggga tgtataacac 17280
gttccgtgag ctggtcccta acgacccgat tacccagaag ttgttgcttg gaacgtttga 17340
ggagcaaggt atccacatca gggactaaac tatcactata ggaaacggga cgctaccaca 17400
ggtcccattt taatcaataa caggaggtat catggctgaa agtacaatca tccagtatcc 17460
agcgggacag tctcaatacg acattccgtt cgactatctg gcccgtaagt tcgttaaggt 17520
gactttcgtc agctctacgg acccatctca gaaccgtgag ttgaccttcg gtgttgactt 17580
ccagttcctc tcggagcgag tcattgaact tctggttgaa cctgaaaatc aggacatcgt 17640
tcagcttcgt cgttttactg atgtagaact tctggtagac ttccgggacg gttcagttct 17700
gaccgccaac gacctgacta cctcagagct tcaggctatc cacattgccg aagaaggccg 17760
tgaccagact tatggtctag cccagcagtt cgctgaagaa gcgaaggatg cagcagagga 17820
cgctcaggag attctggacg agattatggc tcaggccaag tggggttaca cggtagtagg 17880
cagcttcgag ttaggagtcc ctacaccggg agtaacactg aagaaccatg ctgtgtcata 17940
cggctcaggt gataatctgg cgtactacat ttgggaaggt gagttaccta aggaagtacc 18000
agcagattca agcccagaga ttactggcgg tatcggaccg ggagcatggg tgtacgttgg 18060
ctacaacatc aacgtcattc agcagcagct tgcaggtggc atcccgttca agtacgaaag 18120
ctctccacgc gcagaccaag gccgaatcct gaaccgtaag gcacctgtgg ttaaaatcgc 18180
aacgtggaac gtttggggcg ctggctctgg tagcctgtat ggagacttag ggtctcgtga 18240
gcgagtccgt gacattcagg ggcgcattct acatgcacag gtagacttct gtgggcttca 18300
ggagtattac gccaactacc gattccctgc taccatgctt caaatcttcc cgctgaacac 18360
tgcgttccac ggtgtggttg agaagtataa tggagctact ggtgtaacgg cgcgtaactt 18420
cgactacggt aacgtcgcgc tatgcgtgga caccgtaatc tctaacacct cccatctcta 18480
tgctagtcca ggcaacccgt caggtgacaa ggagcgtcgt ggttacgtcc gtacagtggc 18540
aaacattcgt ggaacccgta tcgcgttcta tacaacgcac atgagctacg agcagccacg 18600
tttcacggca atgttcaatg agctgattgc tgctgttaag ttggacactg agacccacat 18660
cgctgttatg ggagacttca acaccgaaga tgaaggtctg ttcaagctgt tcattgacga 18720
aggcttcgtg tctcataaca ataaagagtt caacaccaat aacactggtg gcacttggta 18780
catcgacaac atcttcacca agggcttcgg tactgtaatc aacaagggaa cacaggacag 18840
tgacgcaaag gttgctgacc acaagctgtt cttcgtggag ctggaggtat aatgactgat 18900
acaattatgg gtgcagacgt aaacgtcctt gacgggcgtt ccctttcgct ggagctggtc 18960
cgtctccgca acgaggttgg cgctctggag cgtaacaaca ctaggtacat cttcacgtct 19020
ttggaccagt taggtctgcc aattacagcc tcaatgacgc agattgctga gagacttcct 19080
cagaactcaa ttctggctat tgacgcaact gctgggactc aaggtgctac ccttccgctg 19140
ccatacttca cgcatccgac accagcgtat atgtcggggt tccttacagc gtggcgtggt 19200
aatgacgtca agaaggctta cttcgagtgg cgtaacgagt atttagtggc gcacgcagac 19260
tacaacacgt ataacgtacc tgcgacactt ccgaccaaat ggacgttcat ggttgacagt 19320
attattaaca agaacggatt tggccccggc ccattcggaa acctaatgtc taacatctgg 19380
gttccgggaa cttattactt caactctgct cagatgccag gattcaccga cagtccgact 19440
accgctgcta gcttcctcaa ggttgataac tggcaaggtc ttcctacgtc agaccgactg 19500
tatacgctaa tcgagaacaa tgggtcaacg cgtacctata ctcgtcagaa cgctaacaac 19560
tggcgcaacg taccagtggt cttcccacag tcagtagctg atagtgagct tagggtcggg 19620
gacatgaaga ttgctggtaa cggtagactt cacatgagac taggcgctaa tctggtgggt 19680
cagcttacct acgttggtga gtcgtaacag taaataacag gaggctttat gattgagtta 19740
gacttcaaga acgaagtgct taaagcctcc cctatcgtcg gaaccgctgc ggctgatggt 19800
gccagtcggt tcttctttgg gctaacgctc aacgaatggt tctacgtcgc tgctatcgcg 19860
tataccgtgg tgcagattgg agttctggtc tacaagacga ttaagggagg tggtaagtca 19920
tgacacagat ggacttagag aagttcctct taatgctgga tactgaacgt gctcgactca 19980
tgctgcaaga cttgcggaat gactctaagc gttcacctca gctctacaac gccattgaga 20040
agctgctggc tcgtcacaac tttgtgttaa gcaaggtgtc tgtggacgag aagactctag 20100
cagatatgga ggccctgaac gcagagtacg ataaggtgct ttcagcgact gaggataatg 20160
ataccgggta tggtattcaa taagtgttag actcaaggtc attactatag gtagtggcct 20220
ttatggttaa cactaactag tggaggcgac tctacgtgaa atctgataaa ccgggagggc 20280
aactatgctc gaatttttaa agagagcggc tccgtggtta cttgcagcag tgatgtttgc 20340
tggtggctac cacaccgcta acaataagtg ggaggctaag gtcaatgcag aatacacctc 20400
gaatcttaag gcatcggaag atacaaggct tgctgtccaa gcggaagtca acaaagtgtc 20460
aaagcggttt caggacgaaa tgtcctcgct ggaaggcagc actgatagga ttattgctga 20520
ccttcagtct gacaataagc ggctgcgcat ccgagtcaaa cccacgagtg gaaccacgca 20580
aagtgacggt cgatgcgtca ttgctagtta cgccgaactt gatgaacgag atgctaaacg 20640
tcttatcgcc atcggagtga aaggagacaa gtggattaag gcacttcagg acactgtgag 20700
agccttacag caagataagg aggcgacgca ttgagtaaag acttagtggc gcgtcaggcg 20760
ctaatgactg cccgtatgaa ggcagacttc gtgttcttcc tattcgtcct gtggaaagct 20820
cttggcctac cagcgccaac cagatgccag atagatatgg cccgtaagct ctccgctggg 20880
gacaacaggc gtttcatcct tcaggcgttc cgtggtatcg ggaagtcctt cattacgtgt 20940
gccttcgtgg tctggaagct atggaataac ccagacttga agttcatgat tgtgtcggcc 21000
tcaaaggagc gagcagatgc gaactccatc ttcatcaagc gaatcatcga cctcatgcct 21060
cagcttcggg aactcaaacc taagcaggga cagagggatg cggttatcag cttcgacgtg 21120
gggccagcca agccagacca ctcaccttcg gttaagtccg ttggtatcac tggtcagttg 21180
actggtagtc gtgctgacat cctgattgcc gatgacgtgg aggttcctaa caactctgcg 21240
actcaggctg cgcgagaccg actgtcagag cttgtgaaag agttcgacgc tatcctgaag 21300
ccgggaggta caatcatcta tctgggcact cctcagaacg agatgaccct gtatcgtgag 21360
ttggaaggtc gtggctacac cactactatc tggcctgctc gttatccacg cgacaggaag 21420
gactggcagt cttacggcga ccgtctggct cctatgcttc aggcagaact ggaagaggac 21480
cctgagtcct tctactggcg tccgaccgat gaggtacgat tcgatgatac ggacctgaag 21540
gaacgtgagc tgtcctatgg taaagctggc ttcgctctac agttcatgct taacccgaac 21600
ctgagtgatg ctgagaagta ccctctgaag ctccgtgacc ttatcgtagc cgacttggac 21660
ccagcgtcca gcccaatggt ataccaatgg ttgcctaacc ctcagaacaa gcgtgaggac 21720
gttcctaacg ttggactcat gggcgactca taccacacgt atcagactgt aggttctgcc 21780
ttcagttcgt acacccagaa gattctggtc attgacccta gtggtcgtgg taaggatgaa 21840
actggttatg cggtactgta tcagctcaac ggctacatct tcgctatgga agttggtggt 21900
atgcgtggtg gttatgaaga ctctacgcta gaagccttgg ctaagattgg tcgtaagtgg 21960
aaggtcaacg aatacgtcat tgagggtaac ttcggtgatg gtatgtacct tgagctattc 22020
aagcctgtag cggcccgtat acatcctgct gctgtaactg aagtgaagag taagggccag 22080
aaagaactcc gcatctgtga cgttctggag cctatcatgg ggtctcaccg acttatcgta 22140
aacgctgctg ctatcgtcca agactaccag acagcctctg acaaggatgg tgtgcgtaac 22200
cctatctact ctctcttcta tcagatgacc cgtatctctc gtgaacgtgg agcattggca 22260
cacgatgacc gacttgatgc gctggctatc ggtgtacagt tcttcgttga gtctatggct 22320
aaggatgcca acaaaggcga acgtgaagtc actgaggagt ggctggagga acagatggag 22380
aacccacgga aaggcttcga gtccatccac actgagttct gggacaatgg ggtccgggta 22440
actcatgata cggacgacga gctgggactg ggggcatacg ttacgttcca ctagctgaat 22500
gaataactat aggcgaagac tgaattaata cgcagttagt aacctatagt tactaccagt 22560
ctaacctact gttttacaag gagtttggac ttaactatca ctataggaaa gacccccggt 22620
tacttatagt attactgtag tgaataaaca tatgcagact ttatgcaaga ccttaggagg 22680
cagactccga gttcttacct aaggcttgca ccgatggaag gagggtgata ttaatcataa 22740
tccctccaat acagatagtc accgaccata gatacaggag gtatgtagca tatggcaaag 22800
accaaagctg tacttaaagc tctggctacc aatcgagcta catacaggtt tcttgctgct 22860
gttctacttg ctgctggcgt tactgctgga agtcagtggg tcgggtgggt cgagactctc 22920
gtatgttctc tggtgtctca gtgtaattaa cgcaatcatg gtaacgattc atgagcggaa 22980
gacctaaggt cagtacgtgg ataaagactc actctactga ccttagctac tgtagtcaag 23040
gactttaggt aacaccattc aggctctcac ctctggtcta cctactgatt ggttcactgg 23100
tcgtcatccg acggtcttag acctacggtc cttgacatac agtagctgcc acctacagtc 23160
ttcgatgagt tttggaccaa aagtttgaga ccacatctca cacttcaaga acctcaagtc 23220
tccccatagg ccctctttca gtccagacca agggtggccc ctaccttcaa tctatcatag 23280
ggttagaccg gctgtcaata cctaaagtca acgattggtc atgactatcg gtggtggtgg 23340
agacgatagg ttgggactat tggtctgtct ccgagtctct atctgtataa ccataagtca 23400
caaccataag actacagtct aactaaccat aagtcaataa ccataagtca ataacctaca 23460
gtctcactaa cctacagtct caaccataag acaccaacac ctacagtcag agacctacag 23520
ttaatagaca cacagctata gacttaaggt caaagacatg ttagtcaaag actatatcat 23580
cttacaccat ggggacgacg atagcttaat caatattatt tcaagttacc tattgactat 23640
gggtctagac tgtggcttaa tagcttccgt caacacgaca cggcaacaac cggatagtga 23700
agacgccggg tcatcccggt taagtagaca gcctgataag tcatacgaaa aacaggcaga 23760
tgacagaaag tagttgacaa gatgtaccga cttaaagtag tatgtaccac atcgaaacga 23820
cagtgagtcc caacactgaa acgggatagc acggcgacga cagccaacgc gaatgctctt 23880
taacaatctg gataaactct taatgtgcgc cgatagcgat aaactagcga ctaactacag 23940
ggtctttgag tctaccgcga gacgggcttg acttgagcga ctgaaggccc tgactgatag 24000
tcactaaaca cttaactttg agaggatata actatggaac gtaacgctaa cgcatactat 24060
gagctgctgg ccgcaaccgt tgaggcattt aacgagcgta ttcagtacga ccaaatagct 24120
gaaggtgatg actacagtga tgcgctgcat gaggtcgtag acggtcaggt tccgcactat 24180
tatcacgaga ttttcacggt gatggctgct gatggtatag accacgagtt tgaggactct 24240
gggctgatgc ctgagaccaa ggacgtaacg cgtatactgc aagctcgcat ctatgaggca 24300
ttatataacg acgtgtctaa tagctcggat gtggtctggt ttgaggctga agaggactgc 24360
gagtgatggt aacttatggt ctctgccagt accacgtcac caacgcccgg attatggtca 24420
agaccgggca gttaaaccac gatgcgacta tgcgtcacct gaaagcggtc tacgagggcc 24480
gcaagcgcct aaacgacagc ttacacacgc tgaggacaag caatgataac tgagtgatag 24540
actacaggcc ctttgactgg gggcctgact gattgtcact tatttaatta acagaggata 24600
taactatgag catcaacacg aacacccgca atagctacac agtcgagttt aaaatccgag 24660
tagcaaaggc atacgacttg gtgcgccagc ctcaatatgg cacatccagg ctcaactcca 24720
tgcttgagat ggtggccagt gacttcaacg tatccagtaa gagcgtactc cgctggcact 24780
ctcagtggtc gaaaggtgag ctttccctca gcaacgccat agcagtcagt cgcaagccga 24840
ccaaagtaat aaatggcgac atttaccacc ttgctggaaa agacttcagg tccaaagacg 24900
aggcgatacg ctatgcggtt gagcttgctg gtggccttac tgtgaccaag atgacaacca 24960
tcgcggtgga agtgtaggag tgatagacga gaggtcatcg actgataggt ggcctcaaag 25020
attaccactt gaattaatag gaattaacta tgagcactgc aatcatctgg actgcatctg 25080
gattcgtagc gtggggattg ttcacgctgg tcggtaaact tccggtcctg actcaactgt 25140
tctggggtat ataactatga gtatcgcaat attgatagcc ataggctatg gacttatcgc 25200
ctacgtgctg gttagagaca tcaataaagc gcgtaaagtc tacaaattca actatgtacg 25260
tctgggtcgc tggactgtac gtcaacctaa cggacgcttt ctgcgcaacc tcgcaaacgt 25320
ctgggacatc gcaaccttag ggagtaaact gtaatgagtg aatcttatgg catcaacttg 25380
gaccatgcac ttgacgcata ccttaatctg ctgtcagcgt tagctacagg ctaccgtcac 25440
gggacctcaa gtcacaccgc acgtcaacag caggaacgtg accgtgtact acaggcacga 25500
ctccgggccg agggccataa gtccgagctg ctgcgtctgg cgtatggtgg acgaccaatc 25560
accgacggtg gtaaacttct ggtctcaggc tggaaggcga tagaccaacg gtcaaccatc 25620
aagcacacga ctcatggtga cttcagtcat cttcacgcta accctctgat atgcaagtaa 25680
ttctgactta actatcacta taggactcaa ggtataagac tccaagtgaa agaccaaaga 25740
gactataagt gaaagactaa taacaaggac tttaagtatg agcgtcatct ctattgacaa 25800
acacgacttc tctgatgtgt cgaacgccat tgagccgttt aacctgcttg ctgaccacta 25860
cgggcaggac cttgcagtaa agcagcttca gcttgagcat gaggcataca ctgaaggcga 25920
gcgacgtttc atcaagaacc ttgagcgcca gaccgagcgc ggggaactgg cagacaatca 25980
ggtcgctaaa cctctgatgc aaacgctggt tccaaccatc gctaaggctt tccgtgagtg 26040
gcatgaaggc ccggacggta agtcctcgac ctcgcgtcca agcgtagcgt ttaccatgct 26100
gagcactgac gagaaggccg ttaaggaccg ctctctacgc atatcctgcg agtctgctgc 26160
ggttatcata ctgaaggtca tcctctcaaa gctggttaag cctgaaggga taccgattac 26220
accgatggcc tcagcgatag gccgcacact tgaggatgaa atccgcttcg ggcgcatccg 26280
tgataaggag caggagcact tcaagaaggc gatagctgag aacctgaaca agcgagcagg 26340
ggcatcctac aagaaagcct acatgcaagc ggttgagaca tccatgctgg agcagggtca 26400
actggaagac gcgtggggta cttggagtcc taccgaagcg gtacacgttg gcatcaagat 26460
gcttgagatt gtcatacagt ctacacaact ggtcgagctt aagcgttatg gtgccggcaa 26520
tgcagcggct gatgttgaga tggtccacct gtcagacttc tgggtcaaga agatggcaca 26580
acgtggattc agccttgcgg gtatcgcacc agtctatcag ccttgcgtcg ttccacctaa 26640
gccgtggacg ggtgtcgtag gcggtgggta ctgggccaaa ggtcgcagac cattgccact 26700
gattcgctta gggtctaagt ctgcggtagc acgttacgaa gatgtttaca tgcctgaagt 26760
ctacgacgct gtgaacatca ttcagagtac accttggaaa gttaacaaga aggtactgaa 26820
cgtggtgaac atggtcgaga agctgaacaa cacgcctatt gacgacatac ctcagatgga 26880
accactgaag cctgaggact atgcgggtga gaccgaagat gaactaaagg catggaagaa 26940
agctgccgct ggtatctatc gccgcgagaa ggccagacag tcacgcagat tgtcactgag 27000
ctttatcgtc aaccaagcga acaagttctc gcagttcaag gccatctggt tcccatacaa 27060
catggactgg cgcggtcgcg tctacgctgt gccgatgttc aaccctcagg gtaacgacat 27120
gcagaaaggt ctcctgactc tggcagtcgg caagcctatt ggcgctgatg gtttcaaatg 27180
gctgaaggtc cacggtgcaa actgtgcggg tgtcgataaa gtcaccttcg aggagcgcat 27240
caagtgggtg gaagacaacc acgacaacat catgactgct gctaaggcac cgatggatag 27300
cattgagtgg tggggcaagt tagactctcc tttctgcttc ctagcgttct gcttcgagta 27360
tgctggcgta atgcaccacg gcctgtctta ctcctgctcg ctgccgatag cgttcgatgg 27420
gtcctgctct gggattcaac acttcagcgc gatgcttcgt gaccacatcg gtggacatgc 27480
agtaaaccta acgccatccg gtaaggttca agacatctac cgaatcgtat ccgaccgaat 27540
tgaggaggaa ctcaaagtca tgctggttaa cggtacggac aacgaggtgg tgactcacga 27600
ggacaagaag actggtgaga ttaccgaacg tctcaagctg gggacgcgag agctggcccg 27660
tcagtggctg acttacggta tgtcacgcaa ggtcactaag cgttcggtca tgactctggc 27720
ctacgggtcg aaagagtacg gcttcgcaga ccaagtttac gaagacatcg tgatgccagc 27780
gattgactca gggtctggcg ctatgttcac tgaaccaagc caagcgtctc gcttcatggc 27840
taagatgatt tgggaagctg tgagtgtgac cgtagttgct gcggttgacg cgatgaagtg 27900
gcttcaaggt gctgccaagc tgctggctgc tgaagtgaag gacaagaaga ctggagaaat 27960
cctgaagcct tgccttccgg tacactgggt aacacctgat ggtttcccgg tctggcagga 28020
ataccgcaag aaggatacca ctcgtctgaa cctgatgttc ttggggtcat tcaaccttca 28080
gcctacagtc aacaaaggca tgaagaaaga gctggacaag cacaagcagg agtcaggcat 28140
tagcccgaac ttcgtccact cacaagatgg tagccacctc cgcaagactg tagtccacac 28200
gcaccgcaag tatggcgtga tgtcattcgc agtgattcac gatagcttcg ggaccatccc 28260
ggctgacgct gagtatctgt tccgtggagt ccgtgagaca atggttgaga cctaccgcga 28320
caacgatgtg ctgcttgact tctacgagca gttcgaatac cagcttcacg agagccagcg 28380
cgacaagttg cctgagcttc cgaagaaagg taaactgaat atcgaagaca tcttgtcttc 28440
agactttgca ttcgcttaac aggagagaga gttatgaaat ttgcacacaa gcatactggc 28500
gtgcctggtg ggactcaaat cgtgaccgta acagaacaca acggcaaggg tctggtgaag 28560
accactgtca ttcctactga gatgtcaaag cagcttaacg tcccgttcaa gtggctggtt 28620
aagcaggtgg agcagacgca cgagcaagtc cttaaagagg cggcaaccaa atgacagact 28680
tacagttact ggccctgtgg ctgggagcac tagcagtatt cactttaatc caacgcagaa 28740
gaggttaacc taaactatca ctataggatt agactcaagg tcatgactca aagtcgtggc 28800
cttcatgatt aaccctaaca taacgtaaac tactggagat ttaaccacat gtatcagaac 28860
actatcaact tcgagcgcat ccgtgaacgt cagaagactg aaggttacat tccgaagggc 28920
cgcaagctga acaagaccaa gcgtggtggc ggtgtcaagg gtgctttccg taactctgaa 28980
ggtaaagact ctctggtcaa ccaagagaaa tacttcgtag gagcgtaaaa catgggcatg 29040
ttctcaagag cgcatagtgg aaacctgaac accctccgca gagctattca caactggcag 29100
tccgagaccg aatataacgc agtggtaagc acttggttcg accaaatgat gaacaggcac 29160
tgcgtccggg cggttatagt ccacagccat acgagagagg tcctcatcga gaaggacttc 29220
acggagtacc cgaatattca tgacgaagat gtgcagaccg tagcggttgc cacttggttt 29280
aacaaacagt tcaacgacta cactggtcga ttcctttaat tctggagaca ttaacgatga 29340
caactatcaa aactaacccg caccgcgctg tagattactc tgagtctggc attaagaagg 29400
cactagctgc tgccgggtct ctagaagctg aagtgaagta cgatggtgtc cggttgaacc 29460
ttctggtgct gcgagaaggt gagacatatt ggctaagccg cgagtcgaaa cctctgccag 29520
ccttggagtg gatgaactct gagttaggta atgcgtggac ccaagatgcc tggcgctggt 29580
tcctgcgtca agctggctat gaaggtatcg gcctaatgat tgatggcgag gtcatggtca 29640
aaggtgttga ctttaatacg tcatcaggtc tcattagaac caagtggctc aagcctaaca 29700
acgaggagtt cgctgaatgt tatccggggc gcggcaataa ggtcccgttc tgggtagaac 29760
ggtcacgact taaggttgtg gtttatggta tcgtcgacat gacaaccata gcagacccga 29820
aagctgaagg tcctatccat agcgtcacac gcctgaaggc cgaagctatc gtccctctcc 29880
tccagaaata cttcccggaa atcgactggg ttctgtctga gtcacacacg gtctatgacc 29940
ttgagtcgct caactccctg tacgaacaga agcgtctgga aggacacgag ggtctggtag 30000
tcaaggaccc gctgggtaag tggaagcgtg gtaagaagtc aggcatgtgg aaaatgaagc 30060
ctgaggatac cattgacggt accgtggtcg gactgaattg ggggactgaa ggtctcgcca 30120
acgaaggtaa ggtgattggg ttcgatgtac tgcttgagaa cggtatggta gttgctgcta 30180
acaatatctc tcaagctctg atggacgagt tcaccgaagc ggttgaagct gaacgtgcct 30240
atacttggaa tgactgcatg actgatattg agcgggaaga atgtggtgag gaatgtcttg 30300
aggacgtgaa cccatacaaa gggcatcaat gcgaagtctc ctacatggag atgacaccag 30360
atggttcctt acggcaccct agcttcaagt gctggcgtgg gacggaagat aacccaacag 30420
ttaagagtta actaaacgtc aacccagtgg tcttcggact gctgggtttc tttgctttgt 30480
gctagcaagc tgtcgtttgg gccacaagcc tgaccctaag ctatcactat aggacaacca 30540
taacttcgac ctaaggaggc gacatgttta agaacttaat gttcaatcgt tataccagta 30600
ccttccacct gtctcacaac ccgttcgctt gcattaaacg taacgagaag ctgggctact 30660
tcgggaaggc cgttaagctg tcacctacag tctacgctct gattactccg ggcaaagctg 30720
aagaggctcg ccagaagagt gagaccaacg tacctgtggt ctacaccaag tggcctcgct 30780
ttcgtctgtt cgttgagttc gtgaaggagg tggtcaatgc ttaaggttgg ggatacagtt 30840
gaatatgttg gaccagttaa agcctacatg ggactctcct gtggcaaggt gattatggtt 30900
agaatgggcc acatagttgt tgttaagtgg ccctgtttat ctgaaccagt aattcactcc 30960
tctagtgcct taagtattac caatcaggag caggctgagt cgccaacaat aggtcaggaa 31020
gacagcgtcc gtaagccatc gcactatcag gtctttgacg gtgtggaatc aattgagatt 31080
atcgcccggt ccatgactgt cagcgagttc cgtgggttct gcatgggtaa cgttcttaag 31140
tatcgactcc gagctggtaa gaaatcagag ctggcgacta tggagaagga cctgaataag 31200
gctgcgttct atcaggagct gttcgacctg cataaaggta agtgctatga ctccaagtag 31260
ctggtgcttt agacagtggg tatcaaccgg gaatgtggac tacctgtcca tgtaccatat 31320
gtggaaggag aaaggtttat gaaccaagac cagattaact ttgtatgtca gcttattaag 31380
gagttcgtgg acttcactga tttatccgaa gaggaacttg ttaagctaga agagattctc 31440
gacaaggaga ttttatgact gaggttgaga agaaatacat cgtggagctt gagggtcgcg 31500
ttcagtcctt cgaggttccg gtgtacgcaa agtctcttga agaggctacc ctgaagtccc 31560
aagagtatga ggacgctggt tttgtggtcg gacggattcg tcctgagacc taaactatca 31620
ctgtaggaca gacgtccagt tcgtaacttt taaattagga gatttacacc aatggctaaa 31680
gagcaactga agactttcac cactccggta gctggcatcg ttgagcctta cgcatggctg 31740
aacaaagcag acaccaagtt taacgaacgt ggtgaacaca aagtcaacct gacattcgac 31800
ctgagcgacc agaaggtccg taagatgatt gatgtcttac agaagattca tgacgatgcg 31860
tatgcgaaag cactcgcaga ccacgagaag aacccacctc aggttcagcg tggcaagaag 31920
cctattgaac cacgagaagg cgacatgccg tggattgaga atggtgacgg tactgttacc 31980
ctgaagttta aatgcttcgc gtcttacctg aaggatggta agtcagagcc tatcgtatta 32040
cggttctacg acaccgatgc taagttaatc cgtgacgtcc cgaatattgg tgctggctcc 32100
aaactgaagg tcaagtttaa agtccttccg ttcaagtgga acgctgcgac tggtgcaagc 32160
gttaagctcc agcttgagtc ctgccttctg gtagaactga aagagtggaa aggcgatggc 32220
actggtggtg atggtggctg gggcgatgat gaagaccttg gtactggcta caaagcgtca 32280
accgatggtg acttcgggtc tgatgacttt ggtgacgatg gttccgaagg tggtgatgga 32340
gatacttcag gagactacga cttctaaatg acgctgaaag agaaactgga ggcttactct 32400
aaggtttctc cttcgggatg ctgggagtgg caacgctccc ggactaaaac tggttatggt 32460
caaatagcta taggtcatca gaaacaggac tattctcacc gagtttcgta cagggagtac 32520
aaaggtccta tacctgatgg attggttgtt agacataaat gtgataaccc ttgctgctgt 32580
aaccctgagc accttgaagt tgggactcag aaggacaaca tgcaggactg cgtgaagcgg 32640
ggacgtcact cgaaaccgcc agtattcaaa ggagaagcta atcacaagac taagctgacc 32700
gaggaagacg tagcgtttat cctgaagtcc aagctgaggc ctatagaact tgctaagatg 32760
tttggcgtta ctccgcaagc tattaattgg agacgcaaga atggcaagaa cgattagccg 32820
agggcatcaa gtaggaatat ataggtctgg actagaagca aagaaccaag agtggctgga 32880
gaagaacgga gttaaggctg agtacgagat gtatagcatc aagtacacaa taccagaatc 32940
tcttcacagt tattgtccag actttgtact gcccaacgga ataattgtgg agaccaaagg 33000
aatcttcgca gtggaagacc gcaagaagca cctattgatt agagaacagc acccagagtt 33060
agacatccgg ttcgtgttct caagttcccg ctccaagtta tacaaaggtt ctccgaccac 33120
gtatggtgca tggtgcgaaa agaacggctt taagtttgcc gacaagttta tcccggttga 33180
gtggctgaga gaggcgactg tgcgtctgcc ctcaggtatc ctcatcccca agaagaaagg 33240
agctaagtaa tgactacctg taaagacctt gaagttggaa cacgttacag attctcaaag 33300
aacaccctgc tgaataaccc ccaattcact gatgctgttt tcgaaaagcg ggaagaccat 33360
agcgtaattg tggagaatgg gtggcatcct gaggattaca tcggtgagac taccagctgg 33420
aatggtcacg agacctacag tgtagaagtt gttgaacagc ctcaagtcct gccagcctca 33480
agcgtccctc ctgtcaccgt taaacgtgaa gtcctgacca tcaacaagat tggtgtaggc 33540
cagacgttca tcgtccatgg taagcctgac gaagtgtacg tgaagattag caactctcac 33600
gtcttcaacc acaagcgact ccagatgcac acgactgacg cacagcgctt ccagtcacat 33660
ctgaatctgg tcgtagtaga gctggtggtg tacaatggta agtaaggttc agttcaaccc 33720
acgctcccgt actgacgcta tcttcgttca ctgttcggct accaaaccag atatggacat 33780
cggggtagag accatccgta tgtggcacaa gcagcaaggc tggctggacg taggctacca 33840
ctttatcatc aagcgtgatg gcactgtgga agaaggtcgc ccggtaaatg tcgtagggtc 33900
acatgttaag gactggaact cccggtccgt aggagtctgc cttgtaggtg gagttgacgc 33960
taagggtcag tttgaagcta acttcactcc agcccagatg aactccctgc gcaacaagct 34020
ggctgacctg aaggtcctgt atcctcaggc agaaatcaaa gcacaccatg acgtagcacc 34080
aaaggcgtgt ccaagttttg acttgcaacg ctggctgtct accgacgaac tggtcacttc 34140
cgaccacggt taacaaacct ctaaaggaga acaactcaat gattaaactc atcgaatttc 34200
ttggtcgtct ggtggtgcgt ggctatcgtc gtgctgcggt actggaacga aaggtagaaa 34260
agaagactgc tgacggtgcg gctgatgctg ctgctctggc tgacaagctg accattgcgt 34320
cactggaagc ttgcatgaag gctcgtcagg ctgataccaa agctgaccag ttggctcagt 34380
tcttcaaagc ctaaactatc accttaggga ttggacaatg agtcctgtcc ctttgttcgc 34440
atttgtgatt aaggagtgac caatgtcata cgatgaccaa gacgacgaga gtgtctttct 34500
gtatcacacc cagtgtccag actgtgggtc ctcggatgcc aatggtgttt actcagacgg 34560
ccatcaattt tgttttgcgt gtgacccttc agtcgcatgg aagaaaggag acatggagtt 34620
gaccgaggga tacacaccct caggaggtag aaagcaagtg agcaatctgt taacgttcgg 34680
tgagaactct gggcgatatg taccactacc agcccgtagt ctaagcatgg agatatgcaa 34740
gaagtacagc tactgggtgg gtaacatggg tggtaagatg gttcaggtag ctgattatta 34800
cgacaggtcc gggaccaagg taggtcagaa agtccgagac gctgagaaga acttcacggc 34860
tattggtagc gtaaagtctg acatgttgtt cggctctcag ctctggaacg gtggtaagaa 34920
gatagtcatc accgagggtg agatagacgc tctgtctgtg gctcaggtgc aggacggtaa 34980
gtaccctgtg gtctcgcttc cgttaggctc caagtctgcg aagaaagcga tggctgcgaa 35040
ccttgagtat ctcgaccagt tcgaagagat aatcttgatg ttcgacatgg atgaaccggg 35100
tcgtcaggcc attgaggatg cagctccagt cttaccggca ggtcgggtta aggttgcgtt 35160
catcaacggg tacaaagacg caaacgctgc acttcaggca aaggacttca aggccatcac 35220
cgatgctatc tggaacgcta aacctttcgt cccggctggt gtggtatcag cggcaagtct 35280
gaaggaccgc acacgagagg caatgcttaa ggcagagact gaaggtctca tgttctcgtc 35340
ttgcacaaca ctcaacgcga tgaccctcgg tgcgcgagct ggtgagctta tcatggtgac 35400
ttcagggtca ggcatgggta agtctacatt tgttcgtcag ctcctcttag agtggggaag 35460
agggggtaag cgtgtgggta tggctatgct tgaagaggct gtagaggaaa cagttcagga 35520
ccttatgggt cttgacaata acgtccgtct acgccagagc aaggaactga agcaagccat 35580
cttagaggat ggtcggttcg acgaatggta tgacaagctg ttcggggacg ataagttcca 35640
cctgtacgat tcattcgccg agtcagagga agacaccttg ttcgctaagt tgtcctacat 35700
ggtggatggt ctcgactgtg acgtaatact gcttgaccac atctcaatcg ttgtgtctgg 35760
catggaagat aactcagatg aacgtaagac cattgaccgc atcatgactc gcctcaagaa 35820
gtttgcgaag acgaagggtg tggttgtcgt ggtgatatgc cacctgaaga acccggagaa 35880
aggtaaatcg catgaagaag gtagacctgt tagtatcact gatttgcgtg gaagtggtgc 35940
tctgcgtcag ctatctgaca ctattatcgc actggagcgc aaccagcaag gggatactcc 36000
taatattgtc cagctccgtt tgcttaagtg ccgctttact ggtgacactg gagtggcagg 36060
acacctcgaa tataacaaga cgaccgggtg gcttgaaccg attagcttca ctggcagcag 36120
cggagaagag gatagcggct cgtgggaaga taccgacttc taaggaggag tacattgcta 36180
agaaaactta aagctcgcta ccatcggttc atgtacaaat ggtggagcga tgaagcaacc 36240
tgcctgtaca acattctggg agaccagagg ttcgactcta aggcatggaa gaaagctaac 36300
cgtaagttta tgtatcactt cttacgtaca gacttatagg tctagactca aggtcattca 36360
catcgagtgg cctttatgat tagactaaac ggaggattaa ccatgtttga ccttaagagt 36420
atctggggtt ctgacatcga gacaaacggt ctccttgaca cagtgtccca gttccactgt 36480
ggggtcctga ttaacgccga gtcgaatgag acccttaagt atggggtggc tccgatggtc 36540
ggtatcgtcg gtggcttcaa agagtatgtt cataaagtgg aagagattgc tgcatcgcct 36600
gatggtatgc tggtattcca caacggtatc aactatgacg tcccggctat tgacaagctg 36660
aaacgtctgt actttgggaa acgctttaac ttcccgaaac acaagatgat tgatacctta 36720
gtgctgggcc gcttgatgta tccaaacatt aagttctcag acatgggcgc ggtgaaagct 36780
ggtcgtctgc cacctaatat gatgggacgt cagtctcttg aggcttgggg ttatcgtctc 36840
ggtgagatga agggtgagta caaacacgat tatgttgcca agtgcaaggc tgaaggtatc 36900
gaatataagg ctggggacga atggttgttc ccgtctcagg agatgctgga ctataacgtt 36960
caagacgttg tggttacact agcgttgttc aagaagttcc tgactgacaa gtattacttc 37020
cagtctgaac agttcgcttt cgaccatatt tatgcgttgc gtctggaaca tgatgctgcg 37080
tggacctgtg cgaagatgga acgtaacggc tatccgatga acaccgagat ggtcgaaggc 37140
ttatatcgtg aactcaccgt caaacgtgca gagttgctgg acaagctgcg ttcgactttc 37200
ggtagctggt atgcaccgaa gggtggcaag gagttcttca agcacccacg tacaggcaag 37260
gaccttccga agtatccgcg agtcgtgtat cctaaggtcg ggtcagtatt caagaagccg 37320
aagaacaaag ctcaacgctt aggtctggag cattgcgagt tcgactcacg agacacgatg 37380
gagggagcac cattcacgcc aatcacttac gttgagttta atccgggaag cggagaccac 37440
ttagcgaaag tcctgatgga gcgtggctgg gagcctgtgg acttcactga caccgggaaa 37500
cctgtagtcg atgacgagac gttagaacac gttaagttac cagacgcaga ggctcaggct 37560
tgcgtagagc ttgttcgtga gtatctggta gtccagaaac gcatcggtca ggcggctgaa 37620
ggtaagaacg catggttgaa acttgtaggt ccagacggac gtatgcacgg ttcaatcaac 37680
ccatgcggtg cagtaaccgg acgtgcgact cacagttcac caaacatggc tcaagtcccg 37740
gctaacggtg ctccatatgg tgagacttgc cgtggtgctt tcggtgcagc gtggaacaag 37800
actgatggta agccagaccc ttggattcaa gtgggtgtgg atgcctcagg tcttgagctt 37860
cgttgtctag ggaaccgagc ggccccgttt gatgggggag cctatgcgaa gactgtggtc 37920
gaaggtgaca tccactgggc caacgcagta aacgctgggt tagcacctaa cgtcccacgc 37980
gataagtcta accacgacca tgaggctttc cgtaacaacg ctaagacgtt catctatgcg 38040
ttcctgtatg gtgcaggggc cgctaagatt ggactgatag taggaggtgg taagaaggaa 38100
ggttcagctc tcatgaagaa attcattgat ggtacaccag ccatcaagga cctaagggaa 38160
gctgtgagta atacgttaat ctcagactct aagtgggtgg acggagagaa catcgtcaag 38220
tggaaacgcc gttggttgcg cggacttgat ggccgccgta tccacatccg gtctccacac 38280
tcagcactga acgccttact tcagggtgat ggtgcggtag tctgtaagca ctggattgtt 38340
gagactgaac gtatgctaga agaggccggg tatgtccacg gctgggaagg agactttgcg 38400
tacatggcat gggtccacga cgaattgcag attgcgtgtc gtactcagga gattgccgaa 38460
gaagtcgtca agattgctca gcttgccatg cgtaaggtgg gtgagttcta taattttaaa 38520
tgtgttcttg atacggaggg taagattgga cccacgtgga aagaatgtca ttaacggaaa 38580
ggagtaacac taatggctat gaccaaacgt gctatcgtaa gtttcaacct taaggctgta 38640
cttcctacag accaagagga aatcctcatt gacggtctgc ggaagctagc taaggacgtt 38700
cactcaggtg aaatcaagcc tgatggtaag cagcgccata tgttgaccct gtggctgaca 38760
gaaggaatgg acgcagtgat tgagttcgtt ctgcgtgaca gattccgttc gatgattaaa 38820
gaggctatac aggagtattc agactcggag ttcttcagtg tctcaccagc tactgtgagg 38880
ttcaagcaat gagtgaatac ttacgggtcc tagcggccct taagtcctgc ccgaagacct 38940
tccagtccaa ctatgtgcgc aacaacgctg cacttgtggc tgaggctgcg agtcgtggac 39000
atctaagctg cctttctatg gatgggcgta acaacggtgc gtgggagatt accgctgctg 39060
gcaccaagtt cctgaaccaa cacggaggct gtctatgaac aaccatatcg aagacatcaa 39120
gtccgagcta catgaaaacc cgtggtcata cgacctgtct gacatatggg atgtgattga 39180
agcgggtgat tggacagacg gtggtaagta tgagactaag gaagacatca tcaaacacct 39240
tccgtctggc aaattgttcg aggcttcatt ctatcgtact ggagaccact ggcaaggtta 39300
tgagacagaa ctgtcaagtg taactgaagt tgagccatac gaggcacttg tagtcctgta 39360
ccgtcctgtg aaacttcttg atgtcactgt cccggctatg agtaaagcca aggcggtgag 39420
caatgag 39427
Claims (6)
1.一株可降低抗生素耐药性的大肠杆菌噬菌体,其特征在于,该噬菌体为大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059,透过电镜观察,该大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059头部呈多面体立体对称,包裹着核酸,直径约61nm,无尾,保藏编号为CGMCC No.22493。
2.如权利要求1所述的大肠杆菌噬菌体RDP-EC-20059在制备治疗大肠杆菌引起的疾病的药物中的用途。
3.一种用于防治大肠杆菌的杀菌组合物,其特征在于,包括有效量的如权利要求1所述的大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059。
4.一种如权利要求1所述的大肠杆菌噬菌体的应用,其特征在于,大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059用作由大肠杆菌引起的细菌感染的治疗药物。
5.一种禽类养殖环境的清洁剂或消毒剂,其特征在于,包括如权利要求1所述的大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059。
6.一种如权利要求1所述的大肠杆菌噬菌体的应用,其特征在于,大肠杆菌噬菌体(Escherichia coli phage)RDP-EC-20059用作生物杀菌剂。
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