CN113604416B - 产乙偶姻的大肠杆菌工程菌及构建方法与在全细胞催化生产乙偶姻的应用 - Google Patents
产乙偶姻的大肠杆菌工程菌及构建方法与在全细胞催化生产乙偶姻的应用 Download PDFInfo
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Abstract
本发明公开了产乙偶姻的大肠杆菌工程菌及构建方法与在全细胞催化生产乙偶姻的应用,产乙偶姻的大肠杆菌工程菌,其构建方法为通过共表达α‑乙酰乳酸合成酶、α‑乙酰乳酸脱羧酶、乳酸脱氢酶和NADH氧化酶,得到产乙偶姻的大肠杆菌工程菌;构建大肠杆菌工程菌中使用的宿主菌为突变型大肠杆菌BL‑2,本发明是以乳酸为底物生产乙偶姻,产品产量高,底物成本低,且反应体系中无需额外添加NAD+,进一步降低了生产成本。本发明的方法,乙偶姻产量达到87.5mM以上,产率达到3.65mM/h以上,得率达到0.444mol/mol以上,即理论得率的88.8%以上。此方法的反应条件温和,过程简单。
Description
技术领域
本发明属于生物工程技术与应用领域,具体涉及产乙偶姻的大肠杆菌工程菌及构建方法与在全细胞催化生产乙偶姻的应用。
背景技术
乙偶姻,又名3-羟基-2-丁酮,单体为无色或淡黄色液体,二聚体为白色结晶粉末,可自燃,易溶于水,溶于乙醇、丙二醇、微溶于乙醚。乙偶姻存在于很多食品中,具有奶香气味,常用作食品添加剂来提升食物中的奶香味。乙偶姻是4-C平台化合物的一种,被美国能源部列为30种值得优先开发的平台化合物之一,广泛应用于材料、医药生产和化学合成等领域。乙偶姻也是重要化学品2,3-丁二醇,液态烃燃料和杂环化合物的前体物。
目前,乙偶姻工业化生产的主要方法是化学合成法,包括2,3-丁二醇的氧化、丁酮的氯化水解和丁二酮的部分加氢等方法。这些工艺虽然操作简便,但能耗大,得率低且对环境有一定的污染。近年来,生物法生产化学品成为热点,许多研究者将目光转向经济环保的微生物方法生产乙偶姻,微生物生产乙偶姻的报道很多,产量较高,但得率较低,微生物代谢复杂,体内合成不易调控,且目前使用微生物发酵法生产乙偶姻一直没有很大的提升。所以近几年也有许多的研究者使用基于纯化酶的体外合成生物系统生产乙偶姻,目前已实现从2,3-丁二醇、丙酮酸、甘油、乳酸、木糖等生产乙偶姻。Li等[1]利用乳酸氧化酶、过氧化氢酶和丙酮酸脱氢酶组成体外酶催化系统催化乳酸生产乙偶姻,最终21.1mM的乳酸生产了9.8mM的乙偶姻。但在体外酶催化中,酶的制备成本较高,酶的稳定性较低,目前以乳酸为底物的乙偶姻产量还较低。
相比之下,全细胞催化具有很多明显的优势:制备简单,成本低,效率高,稳定性好等,此方法已经成功应用在很多化学品的生产,包括乙偶姻。目前已实现利用全细胞催化以meso-2,3-丁二醇,双乙酰,葡萄糖和乙醛为底物合成乙偶姻,且乙偶姻的产量都较高。Zhou等[2]利用氧化葡糖杆菌全细胞催化生产乙偶姻,以2,3-丁二醇为底物,最终乙偶姻的产量达到165.9g/L。虽然乙偶姻的产量很高,但底物2,3-丁二醇价格昂贵。Zhang等[3]利用Corynebacterium crenatum全细胞催化葡萄糖生产乙偶姻,菌体经过3次重复利用,乙偶姻的产量达到76.93g/L,但得率低,为0.67mol/mol。目前全细胞催化方法中,以乙醛为底物的催化体系中,乙偶姻的产量最高,达到222g/L[4],但该催化体系对细胞密度要求高(30gCDW/L),其底物乙醛较贵,属于危险品且难以储存,不利于乙偶姻的工业化制备,因此亟待开发一种利用廉价安全的底物的全细胞催化方法。
发明内容
本发明的目的是克服现有技术的不足,提供产乙偶姻的大肠杆菌工程菌。
本发明的第二个目的是提供产乙偶姻的大肠杆菌工程菌的构建方法。
本发明的第三个目的是提供产乙偶姻的大肠杆菌工程菌在全细胞催化生产乙偶姻的应用。
本发明的技术方案概述如下:
产乙偶姻的大肠杆菌工程菌,其构建方法为通过共表达α-乙酰乳酸合成酶、α-乙酰乳酸脱羧酶、乳酸脱氢酶和NADH氧化酶,得到产乙偶姻的大肠杆菌工程菌;
构建大肠杆菌工程菌中使用的宿主菌为突变型大肠杆菌BL-2,
所述突变型大肠杆菌BL-2为将大肠杆菌Escherichia coli BL21(DE3)中乙酸生成途径的磷酸乙酰转移酶和乙酸裂解酶编码基因pta-ackA和丙酮酸氧化酶编码基因poxB敲除后得到;
所述α-乙酰乳酸合成酶的氨基酸序列如SEQ ID No.1所示;
所述α-乙酰乳酸脱羧酶的氨基酸序列如SEQ ID No.2所示。
所述乳酸脱氢酶的氨基酸序列为SEQ ID No.3;
所述NADH氧化酶的氨基酸序列为SEQ ID No.4。
所述共表达的方法为:利用重组表达载体向所述宿主菌中导入所述α-乙酰乳酸合成酶的编码基因alsS、α-乙酰乳酸脱羧酶的编码基因aldC、乳酸脱氢酶的编码基因ldh和NADH氧化酶的编码基因nox;
所述重组表达载体为pET28a-aldC-S2-alsS-ldh-nox;
所述α-乙酰乳酸合成酶的编码基因alsS的核苷酸序列如SEQ ID NO.5所示;
所述α-乙酰乳酸脱羧酶的编码基因aldC的核苷酸序列如SEQ ID NO.6所示;
所述S2的核苷酸序列如SEQ ID NO.7所示;
所述乳酸脱氢酶的编码基因ldh的核苷酸序列如SEQ ID NO.8所示;
所述NADH氧化酶的编码基因nox的核苷酸序列如SEQ ID NO.9所示;
所述重组表达载体的基本载体是pET28a。
上述产乙偶姻的大肠杆菌工程菌的构建方法,包括如下步骤:
1)以引物LDH-F为上游引物,以引物LDH-R为下游引物,以载体pET28a-ldh为模板,经PCR,制备含乳酸脱氢酶的编码基因ldh的片段ldh-1;
以引物NOX-F为上游引物,以NOX-R为下游引物,以载体pET28a-nox为模板,经PCR,制备含NADH氧化酶的编码基因nox的片段nox-1;
以引物LDH-F为上游引物,以NOX-R为下游引物,利用片段ldh-1和nox-1,经PCR,制备融合片段ldh-nox;
2)以引物aldC-F为上游引物,以aldC-R为下游引物,以枯草芽孢杆菌(Bacillussubtilis 168)基因组为模板,经PCR,制备含有α-乙酰乳酸脱羧酶的编码基因aldC和部分S2的片段aldC-1;
以引物alsS-F为上游引物,以alsS-R为下游引物,以枯草芽孢杆菌(Bacillussubtilis 168)基因组为模板,经PCR,制备含有α-乙酰乳酸合成酶的编码基因alsS和另外部分S2的片段alsS-1;
以引物aldC-F为上游引物,以alsS-R为下游引物,利用片段aldC-1和alsS-1,制备融合片段aldC-S2-alsS;
3)以引物aldC-F为上游引物,以NOX-R为下游引物,利用片段ldh-nox和aldC-S2-alsS,经PCR,制备融合片段aldC-S2-alsS-ldh-nox;
将融合片段aldC-S2-alsS-ldh-nox与pET28a通过NheI/XhoI双酶切,经连接、转化后得到质粒pET28a-aldC-S2-alsS-ldh-nox;将质粒pET28a-aldC-S2-alsS-ldh-nox导入突变型大肠杆菌BL-2中得到产乙偶姻大肠杆菌工程菌BL-3;
所述pET28a-ldh的核苷酸序列如SEQ ID NO.10所示;
所述pET28a-nox的核苷酸序列如SEQ ID NO.11所示;
所述引物LDH-F的核苷酸序列如SEQ ID NO.38所示;
所述引物LDH-R的核苷酸序列如SEQ ID NO.39所示;
所述引物NOX-F的核苷酸序列如SEQ ID NO.40所示;
所述引物NOX-R的核苷酸序列如SEQ ID NO.41所示;
所述引物aldC-F的核苷酸序列如SEQ ID NO.42所示;
所述引物aldC-R的核苷酸序列如SEQ ID NO.43所示;
所述引物alsS-F的核苷酸序列如SEQ ID NO.44所示;
所述引物alsS-R的核苷酸序列如SEQ ID NO.45所示。
产乙偶姻的大肠杆菌工程菌在全细胞催化生产乙偶姻的应用,包括如下步骤:
1)将权利要求1或2的产乙偶姻的大肠杆菌工程菌在LB培养基中进行培养,培养至OD600为0.6-0.8,加入终浓度为0.5mM的异丙基β-D-1-硫代吡喃半乳糖苷,18-25℃下诱导12-16h,离心收集菌体;
2)将步骤1)获得的菌体悬于含乳酸的转化液中,使OD600=15-30,所述乳酸的浓度为190.8-295.2mM,在37-40℃,220rpm反应,得到乙偶姻。
转化液的组成为10mM的MgCl2,余量为pH 6.0的100mM磷酸盐缓冲液。
有益效果
本发明是以乳酸为底物生产乙偶姻,产品产量高,底物成本低,且反应体系中无需额外添加NAD+,进一步降低了生产成本。本发明产乙偶姻的大肠杆菌工程菌催化乳酸生成乙偶姻,乙偶姻产量达到87.5mM以上,产率达到3.65mM/h以上,得率达到0.444mol/mol以上,即理论得率的88.8%以上。此方法的反应条件温和,过程简单。
附图说明
图1为乳酸出发合成乙偶姻的反应示意图;
图2为产乙偶姻的大肠杆菌工程菌BL-3转化乳酸生产乙偶姻的生产曲线;
图3为补料转化生产乙偶姻图。
具体实施方式
下面结合实施例对本发明做进一步说明,下述实施例是为了使本领域的技术人员能够更好的理解本发明,但对本发明不作任何限制。
LB培养基:蛋白胨10g/L,酵母粉5g/L,NaCl 10g/L,蒸馏水定容。
磷酸缓冲液(pH 6.0):100mM Na2HPO4水溶液和100mM NaH2PO4水溶液以1:7.13体积比混合。
原始质粒pET28a来源为biovector(http://www.biovector.net/);
原始质粒pTKRed和pTKS/CS来源为Addgene(https://www.addgene.org/)。
λ-Red基因重组的方法和菌株摇瓶发酵方法来源于如下文章:Lin,Z.;Xu,Z.;Li,Y.;Wang,Z.;Chen,T.;Zhao,X.,Metabolic engineering of Escherichia coli for theproduction of riboflavin.Microbial cell factories 2014,13(1),104.
枯草芽孢杆菌(Bacillus subtilis 168)来源为BGSC(Bacillus Genetic StockCenter,http://www.bgsc.org/);
E.coli BL21(DE3)感受态来源为NEB(http://www.neb-china.com/);
乙偶姻标准品从Sigma公司(http://www.sigmaaldrich.com/sigma-aldrich)购买。
所用限制性内切酶、去磷酸化酶、DNA连接酶等、分子生物学试剂从Thermo公司购买(http://www.thermoscientificbio.com/fermentas)。
所用乳酸钠,乳酸等其他生化试剂(如胰蛋白胨,酵母抽提物,NaCl,磷酸氢二钠,磷酸二氢钠、IPTG、MgCl2等)从生工生物工程(上海)股份有限公司购买(http:// www.sangon.com/)。
所述α-乙酰乳酸合成酶来源于枯草芽孢杆菌Bacillus subtilis 168
所述α-乙酰乳酸脱羧酶来源于枯草芽孢杆菌Bacillus subtilis 168
所述S2的核苷酸序列如SEQ ID NO.7所示;
所述乳酸脱氢酶来源于凝结芽孢杆菌Bacillus coagulans 2-6
所述NADH氧化酶来源于乳酸乳球菌乳酸亚种Lactococcus lactis subsp.lactisIO-1实施例1:利用λ-Red重组方法敲除大肠杆菌基因组上的基因pta-ackA和poxB
以pta-ackA-U-F(SEQ ID NO.22)和pta-ackA-U-R(SEQ ID NO.23)为引物(表1),
以大肠杆菌基因组为模板,通过PCR反应,得到pta-ackA-U(SEQ ID No.12);
以pta-ackA-tet-1(SEQ ID NO.24)和pta-ackA-tet-2(SEQ ID NO.25)为引物,
以pTKS/CS为模板,通过PCR反应,得到pta-ackA-tet-U(SEQ ID No.13);
以pta-ackA-tet-3(SEQ ID NO.26)和pta-ackA-tet-4(SEQ ID NO.27)为引物,以pTKS/CS为模板,通过PCR反应,得到pta-ackA-tet-D(SEQ ID No.14);
以pta-ackA-D-F(SEQ ID NO.28)和pta-ackA-D-R(SEQ ID NO.29)为引物,以大肠杆菌基因组为模板,通过PCR反应,得到pta-ackA-D(SEQ ID No.15)。
然后以pta-ackA-U-F和pta-ackA-D-R为引物,将上述PCR产物pta-ackA-U-F,pta-ackA-tet-U,pta-ackA-tet-D,pta-ackA-D通过融合PCR的方法,融合成一个片段pta-ackA-tet(SEQ ID No.16)。
将pTKRed质粒通过电转化导入到大肠杆菌E.coli BL21(DE3),然后制作成感受态,利用电转化的方法,将片段pta-ackA-tet导入,利用四环素筛选出阳性克隆,并进行菌落PCR验证,然后通过阿拉伯糖诱导的方法,消除掉基因重组过程中引入的四环素抗性基因,从而实现pta-ackA基因的敲除,得到大肠杆菌工程菌,命名为BL-1。
以poxB-U-F(SEQ ID NO.30)和poxB-U-R(SEQ ID NO.31)为引物(表1),以大肠杆菌基因组为模板,通过PCR反应,得到poxB-U(SEQ ID No.17);
以poxB-tet-1(SEQ ID NO.32)和poxB-tet-2(SEQ ID NO.33)为引物,以pTKS/CS为模板,通过PCR反应,得到poxB-tet-U(SEQ ID No.18);
以poxB-tet-3(SEQ ID NO.34)和poxB-tet-4(SEQ ID NO.35)为引物,以pTKS/CS为模板,通过PCR反应,得到poxB-tet-D(SEQ ID No.19);
以poxB-D-F(SEQ ID NO.36)和poxB-D-R(SEQ ID NO.37)为引物,以大肠杆菌基因组为模板,通过PCR反应,得到poxB-D(SEQ ID No.20)。
然后以poxB-U-F和poxB-D-R为引物,将上述PCR产物poxB-U-F,poxB-tet-U,poxB-tet-D,poxB-D通过融合PCR的方法,融合成一个片段poxB-tet(SEQ ID No.21)。
将pTKRed质粒通过电转化导入到大肠杆菌工程菌BL-1中,然后制作成感受态,利用电转化的方法,将片段poxB-tet导入,利用四环素筛选出阳性克隆,并进行菌落PCR验证,然后通过阿拉伯糖诱导的方法,消除掉基因重组过程中引入的四环素抗性基因,从而实现poxB基因的敲除,得到大肠杆菌工程菌,命名为BL-2(又称突变型大肠杆菌BL-2)。
表1菌株构建所用引物序列
实施例2:表达载体pET28a-aldC-S2-alsS-ldh-nox与产乙偶姻的大肠杆菌工程菌的构建
本发明所用的α-乙酰乳酸合成酶的氨基酸序列如SEQ ID No.1所示,来源于枯草芽孢杆菌Bacillus subtilis 168;所用的所述α-乙酰乳酸脱羧酶的氨基酸序列如SEQ IDNo.2所示,来源于乳酸脱氢酶枯草芽孢杆菌Bacillus subtilis 168;所用乳酸脱氢酶的氨基酸序列为SEQ ID No.3;来源于凝结芽孢杆菌Bacillus coagulans 2-6,所用NADH氧化酶的氨基酸序列为SEQ ID No.4,来源于乳酸乳球菌乳亚种Lactococcus lactissubsp.lactis IO-1。
以引物LDH-F(SEQ ID NO.38)为上游引物,以引物LDH-R(SEQ ID NO.39)为下游引物,以载体pET28a-ldh(SEQ ID NO.10)为模板,经PCR,制备含乳酸脱氢酶的编码基因ldh(SEQ ID NO.8)的片段ldh-1。以NOX-F(SEQ ID NO.40)为上游引物,以NOX-R(SEQ IDNO.41)为下游引物,以载体pET28a-nox(SEQ ID NO.11)为模板,经PCR,制备含NADH氧化酶的编码基因nox(SEQ ID NO.9)的片段nox-1。以引物LDH-F为上游引物,以NOX-R为下游引物,利用片段ldh-1和nox-1,经PCR,制备融合片段ldh-nox。
以引物aldC-F(SEQ ID NO.42)为上游引物,以aldC-R(SEQ ID NO.43)为下游引物,以枯草芽孢杆菌(Bacillus subtilis 168)基因组为模板,经PCR,制备含有α-乙酰乳酸脱羧酶的编码基因aldC(SEQ ID NO.6)和部分S2的片段aldC-1;以引物alsS-F(SEQ IDNO.44)为上游引物,以alsS-R(SEQ ID NO.45)为下游引物,以枯草芽孢杆菌(Bacillussubtilis 168)基因组为模板,经PCR,制备含有α-乙酰乳酸合成酶的编码基因alsS(SEQ IDNO.5)和另外部分S2的片段alsS-1;S2的核苷酸序列如SEQ ID NO.7所示;以引物aldC-F为上游引物,以alsS-R为下游引物,利用片段aldC-1和alsS-1,制备融合片段aldC-S2-alsS;
以引物aldC-F为上游引物,以NOX-R为下游引物,利用片段ldh-nox和aldC-S2-alsS,经PCR,制备融合片段aldC-S2-alsS-ldh-nox,将融合片段aldC-S2-alsS-ldh-nox与pET28a通过NheI/XhoI双酶切,经连接、转化后得到质粒pET28a-aldC-S2-alsS-ldh-nox;将质粒pET28a-aldC-S2-alsS-ldh-nox导入突变型大肠杆菌BL-2中得到产乙偶姻的大肠杆菌工程菌BL-3;
表2菌株构建所用引物序列
实施例3:产乙偶姻的大肠杆菌工程菌在全细胞催化生产乙偶姻的应用,包括如下步骤:
1)将实施例2中的产乙偶姻的大肠杆菌工程菌BL-3,从平板上挑取单菌落,接种到5mL LB培养基中,培养10h,以1%接种量转接至200mL LB培养基中,在37℃,220rpm条件下培养至OD600为0.6-0.8左右,加入终浓度为0.5mM的IPTG(异丙基β-D-1-硫代吡喃半乳糖苷),25℃下诱导12h,4℃,4500rpm收集菌体,利用磷酸缓冲液(pH=6.0)重悬洗涤一次菌体,再4℃,4500rpm离心菌体,最后用少量的磷酸缓冲液(pH=6.0)将菌体重悬;
2)将步骤1)获得的菌体悬于含有乳酸的转化液中,使OD600=15,乳酸的浓度为190.8mM。在37℃,220rpm反应,得到乙偶姻。
转化液的组成为:10mM MgCl2,余量为pH 6.0的100mM磷酸盐缓冲液,反应总体积为10mL。乙偶姻的生产曲线见图2,从反应结果可以看出,24h后乙偶姻的产量达到87.5mM(7.71g/L),得率达到0.459mol/mol,是理论得率的91.8%。
实施例4:产乙偶姻的大肠杆菌工程菌在全细胞催化生产乙偶姻的应用,包括如下步骤:
1)将实施例2中的产乙偶姻的大肠杆菌工程菌BL-3,从平板上挑取单菌落,接种到5mL LB培养基中,培养11h,以1%接种量转接至200mL LB培养基中,在37℃,220rpm条件下培养至OD600为0.6-0.8左右,加入终浓度为0.5mM的IPTG(异丙基β-D-1-硫代吡喃半乳糖苷),18℃下诱导16h,4℃,4500rpm收集菌体,利用磷酸缓冲液(pH=6.0)重悬洗涤一次菌体,再4℃,4500rpm离心菌体,最后用少量的磷酸缓冲液(pH=6.0)将菌体重悬。
2)将步骤1)获得的菌体以悬于含有乳酸的转化液中,使OD600=30,初始乳酸的浓度为222.2mM,在40℃,220rpm反应,得到乙偶姻。
转化液的组成为:10mM MgCl2,余量为pH 6.0的100mM磷酸盐缓冲液,反应总体积为10mL。24h后,乙偶姻的产量达到101.5mM(8.94g/L),得率达到0.457mol/mol,是理论得率的91.4%。
实施例5:产乙偶姻的大肠杆菌工程菌在全细胞催化生产乙偶姻的应用,包括如下步骤:
1)将实施例2中的产乙偶姻的大肠杆菌工程菌BL-3,从平板上挑取单菌落,接种到5mL LB培养基中,培养12h,以1%接种量转接至200mL LB培养基中,在37℃,220rpm条件下培养至OD600为0.6-0.8左右,加入终浓度为0.5mM的IPTG(异丙基β-D-1-硫代吡喃半乳糖苷),22℃下诱导14h,4℃,4500rpm收集菌体,利用磷酸缓冲液(pH=6.0)重悬洗涤一次菌体,再4℃,4500rpm离心菌体,最后用少量的磷酸缓冲液(pH=6.0)将菌体重悬。
2)将步骤1)获得的菌体以悬于含有乳酸的转化液中,使OD600=15,乳酸的浓度为295.2mM。在40℃,220rpm反应,得到乙偶姻。
转化液的组成为:10mM MgCl2,余量为pH 6.0的100mM磷酸盐缓冲液,反应总体积为10mL。24h后乳酸未全部消耗完,转化率较低,但乙偶姻的产量达到90.5mM(7.97g/L),得率达到0.499mol/mol,是理论得率的99.9%。
实施例6:补料法生产乙偶姻应用,包括如下步骤:
1)将实施例2中的产乙偶姻的大肠杆菌工程菌BL-3,从平板上挑取单菌落,接种到5mL LB培养基中,培养12h,以1%接种量转接至200mL LB培养基中,在37℃,220rpm条件下培养至OD600为0.6-0.8左右,加入终浓度为0.5mM的IPTG(异丙基β-D-1-硫代吡喃半乳糖苷),22℃下诱导14h,4℃,4500rpm收集菌体,利用磷酸缓冲液(pH=6.0)重悬洗涤一次菌体,再4℃,4500rpm离心菌体,最后用少量的磷酸缓冲液(pH=6.0)将菌体重悬。
2)将步骤1)获得的菌体以悬于含有乳酸的转化液中,使OD600=30,初始乳酸的浓度为216.6mM。在40℃,220rpm反应,得到乙偶姻。
转化液的组成为:10mM MgCl2,余量为pH 6.0的100mM磷酸盐缓冲液,反应总体积为10mL。
反应过程中,监测pH,每3h补加乳酸,整个反应周期为24h,24h后乳酸总添加为567.6mM。乙偶姻的生产曲线见图3,从反应结果可以看出,24h时,乙偶姻产量达到252.0mM(22.2g/),得率达到0.444mol/mol,是理论得率的88.8%。
参考文献:
[1]Li Z,Zhang M,Jiang T,et al.Enzymatic cascades for efficientbiotransformation of racemic lactate derived from corn steep water.ACSSustain Chem Eng,2017,5(4):3456-3464.
[2]Zhou X,Zhou X,Zhang H,et al.Improving the performance of cellbiocatalysis and the productivity of acetoin from 2,3-butanediol using acompressed oxygen supply.Process Biochem,2018,64:46-50.
[3]Zhang X,Han R,Bao T,et al.Synthetic engineering of Corynebacteriumcrenatum to selectively produce acetoin or 2,3-butanediol by one stepbioconversion method.Microb Cell Fact,2019,18(1):128.
[4]Peng K,Guo D,Lou Q,et al.Synthesis of ligustrazine fromacetaldehyde by a combined biological–chemical approach.ACS Synth Biol,2020,9(11):2902-2908.
序列表
<110> 天津大学
<120> 产乙偶姻的大肠杆菌工程菌及构建方法与在全细胞催化生产乙偶姻的应用
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gttgattgct tagtggagca aggtgtcaca catgtatttg gcattccagg tgcaaaaatt 120
gatgcggtat ttgacgcttt acaagataaa ggacctgaaa ttatcgttgc ccggcacgaa 180
caaaacgcag cattcatggc ccaagcagtc ggccgtttaa ctggaaaacc gggagtcgtg 240
ttagtcacat caggaccggg tgcctctaac ttggcaacag gcctgctgac agcgaacact 300
gaaggagacc ctgtcgttgc gcttgctgga aacgtgatcc gtgcagatcg tttaaaacgg 360
acacatcaat ctttggataa tgcggcgcta ttccagccga ttacaaaata cagtgtagaa 420
gttcaagatg taaaaaatat accggaagct gttacaaatg catttaggat agcgtcagca 480
gggcaggctg gggccgcttt tgtgagcttt ccgcaagatg ttgtgaatga agtcacaaat 540
acgaaaaacg tgcgtgctgt tgcagcgcca aaactcggtc ctgcagcaga tgatgcaatc 600
agtgcggcca tagcaaaaat ccaaacagca aaacttcctg tcgttttggt cggcatgaaa 660
ggcggaagac cggaagcaat taaagcggtt cgcaagcttt tgaaaaaggt tcagcttcca 720
tttgttgaaa catatcaagc tgccggtacc ctttctagag atttagagga tcaatatttt 780
ggccgtatcg gtttgttccg caaccagcct ggcgatttac tgctagagca ggcagatgtt 840
gttctgacga tcggctatga cccgattgaa tatgatccga aattctggaa tatcaatgga 900
gaccggacaa ttatccattt agacgagatt atcgctgaca ttgatcatgc ttaccagcct 960
gatcttgaat tgatcggtga cattccgtcc acgatcaatc atatcgaaca cgatgctgtg 1020
aaagtggaat ttgcagagcg tgagcagaaa atcctttctg atttaaaaca atatatgcat 1080
gaaggtgagc aggtgcctgc agattggaaa tcagacagag cgcaccctct tgaaatcgtt 1140
aaagagttgc gtaatgcagt cgatgatcat gttacagtaa cttgcgatat cggttcgcac 1200
gccatttgga tgtcacgtta tttccgcagc tacgagccgt taacattaat gatcagtaac 1260
ggtatgcaaa cactcggcgt tgcgcttcct tgggcaatcg gcgcttcatt ggtgaaaccg 1320
ggagaaaaag tggtttctgt ctctggtgac ggcggtttct tattctcagc aatggaatta 1380
gagacagcag ttcgactaaa agcaccaatt gtacacattg tatggaacga cagcacatat 1440
gacatggttg cattccagca attgaaaaaa tataaccgta catctgcggt cgatttcgga 1500
aatatcgata tcgtgaaata tgcggaaagc ttcggagcaa ctggcttgcg cgtagaatca 1560
ccagaccagc tggcagatgt tctgcgtcaa ggcatgaacg ctgaaggtcc tgtcatcatc 1620
gatgtcccgg ttgactacag tgataacatt aatttagcaa gtgacaagct tccgaaagaa 1680
ttcggggaac tcatgaaaac gaaagctctc 1710
<210> 6
<211> 765
<212> DNA
<213> 枯草芽孢杆菌(Bacillus subtilis 168)
<400> 6
atgaaacgag aaagcaacat tcaagtgctc agccgtggtc aaaaagatca gcctgtgagc 60
cagatttatc aagtatcaac aatgacttct ctattagacg gagtatatga cggagatttt 120
gaactgtcag agattccgaa atatggagac ttcggtatcg gaacctttaa caagcttgac 180
ggagagctga ttgggtttga cggcgaattt taccgtcttc gctcagacgg aaccgcgaca 240
ccggtccaaa atggagaccg ttcaccgttc tgttcattta cgttctttac accggacatg 300
acgcacaaaa ttgatgcgaa aatgacacgc gaagactttg aaaaagagat caacagcatg 360
ctgccaagca gaaacttatt ttatgcaatt cgcattgacg gattgtttaa aaaggtgcag 420
acaagaacag tagaacttca agaaaaacct tacgtgccaa tggttgaagc ggtcaaaaca 480
cagccgattt tcaacttcga caacgtgaga ggaacgattg taggtttctt gacaccagct 540
tatgcaaacg gaatcgccgt ttctggctat cacctgcact tcattgacga aggacgcaat 600
tcaggcggac acgtttttga ctatgtgctt gaggattgca cggttacgat ttctcaaaaa 660
atgaacatga atctcagact tccgaacaca gcggatttct ttaatgcgaa tctggataac 720
cctgattttg cgaaagatat cgaaacaact gaaggaagcc ctgaa 765
<210> 7
<211> 17
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 7
taaggatccg aaggaga 17
<210> 8
<211> 939
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 8
atgaaaaaag tgaaccgtat tgccgtggtt ggcaccggtg cagtgggcac cagctattgc 60
tacgccatga ttaaccaagg tgtggccgag gagctggtgc tgattgacat caatgaagcc 120
aaggccgagg gcgaagccat ggatctgaat catggtttac cttttgcccc gaccagcaca 180
cgcgtttgga agggcgatta cagtgattgc ggcaccgcag atctggtggt gattaccgcc 240
ggtagcccgc agaaaccggg tgaaacccgt ttagatctgg ttgcaaaaaa cgccaagatt 300
ttcaaaggta tgattaaaag tattatggat agcggcttca acggcatctt tttagtggca 360
agcaatccgg tggatatttt aacctacgtg acatggaagg agagtggttt accgaaagaa 420
cacgttattg gcagcggtac cgtgctggat agtgcccgtt tacgtaactc tttaagtgcc 480
cagtttggca ttgacccgcg caatgtgcac gcagccatca ttggcgaaca tggcgatacc 540
gaactgcccg tttggagcca taccaacatc ggctacgaca caatcgagag ctatttacag 600
aagggcatta tcgacgaaaa aactttagac gacatcttcg tgaacacccg cgatgccgca 660
taccatatca tcgaacgcaa gggcgccacc ttttatggca tcggcatgtc tttaacccgc 720
attacccgtg ccattttaaa taacgaaaac agcgtgctga ccgtgagtgc ctttctggag 780
ggccagtatg gcaacagcga cgtgtacgtt ggcgttccgg ccattatcaa ccgtcaaggt 840
atccgcgaag tggtggagat caaactgaat gaaaaagaac aagaacagtt taatcatagc 900
gtgaaagtgc tgaaagaaac catggccccc gttctgtaa 939
<210> 9
<211> 1338
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 9
atgaagattg tggtgattgg caccaaccat gcgggtattg cgactgcgaa caccctgatt 60
gatcagtatc cgggccatga aattgtgatg attgatcgca acagcaacat gagctatctg 120
ggttgcggca ccgcgatttg ggttggccgc cagattgaaa aaccggacga gctgttttat 180
gcgaaagcgg aggactttga aaaaaagggc gtgaagattc tgaccgaaac cgaagtgagc 240
gaaattgact tcaccaacaa gatgatttac gcgaaaagca aaaccggcga gaaaattacc 300
gagagctacg ataaactggt gctggcgact ggtagccgcc ctattattcc taacctgccg 360
ggcaaagatc tgaaaggcat ccatttcctg aaactgtttc aggaaggcca ggcgattgat 420
gaagaatttg cgaagaacga tgtgaaacgc attgcggtga ttggcgcggg ttatattggc 480
accgaaattg cggaagcggc gaaacgccgt ggtaaagaag tgctgctgtt tgatgcggaa 540
agcaccagcc tggcgagcta ttatgatgag gaattcgcga aaggcatgga tgaaaacctg 600
gcgcagcatg gcattgaact gcattttggc gaactggcgc aggaatttaa agcgaacgaa 660
aaaggccatg tgagccagat tgtgaccaac aaaagcacct atgatgtgga tctggtgatt 720
aactgcattg gctttaccgc gaactcagcg ttagcgggcg aacatctgga aacctttaaa 780
aacggcgcga tcaaagtgga taaacatcag cagagcagcg atccggatgt gtatgcggtt 840
ggcgatgtgg cgaccattta tagcaacgcg ctgcaggatt ttacctatat tgcgctggcg 900
agcaatgcag ttcgtagcgg tattgtggcg ggccataaca ttggcggcaa aagcattgaa 960
agcgtgggtg tgcaaggcag caacggcatt agcattttcg gctataacat gaccagcacc 1020
ggcctgtcag ttaaagcggc gaaaaaaatt agcctggagg tgagctttag cgactttgaa 1080
gacaaacaga aagcgtggtt tctgcatgaa aacaacgata gcgtgaaaat ccgcattgtg 1140
tatgaaacca acagccgccg cattattggt gcacagctgg cgagcaaaag cgaaattatt 1200
gcgggcaaca tcaacatgtt tagcctggcg attcaggaaa aaaagaccat tgatgaactg 1260
gcgctgctgg atctgttttt tctgccgcat tttaacagcc cgtacaacta tatgaccgtg 1320
gcggcgctga acgcgaaa 1338
<210> 10
<211> 6274
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 10
atccggatat agttcctcct ttcagcaaaa aacccctcaa gacccgttta gaggccccaa 60
ggggttatgc tagttattgc tcagcggtgg cagcagccaa ctcagcttcc tttcgggctt 120
tgttagcagc cggatctcag tggtggtggt ggtggtgctc gagttacaga acgggggcca 180
tggtttcttt cagcactttc acgctatgat taaactgttc ttgttctttt tcattcagtt 240
tgatctccac cacttcgcgg ataccttgac ggttgataat ggccggaacg ccaacgtaca 300
cgtcgctgtt gccatactgg ccctccagaa aggcactcac ggtcagcacg ctgttttcgt 360
tatttaaaat ggcacgggta atgcgggtta aagacatgcc gatgccataa aaggtggcgc 420
ccttgcgttc gatgatatgg tatgcggcat cgcgggtgtt cacgaagatg tcgtctaaag 480
ttttttcgtc gataatgccc ttctgtaaat agctctcgat tgtgtcgtag ccgatgttgg 540
tatggctcca aacgggcagt tcggtatcgc catgttcgcc aatgatggct gcgtgcacat 600
tgcgcgggtc aatgccaaac tgggcactta aagagttacg taaacgggca ctatccagca 660
cggtaccgct gccaataacg tgttctttcg gtaaaccact ctccttccat gtcacgtagg 720
ttaaaatatc caccggattg cttgccacta aaaagatgcc gttgaagccg ctatccataa 780
tacttttaat catacctttg aaaatcttgg cgttttttgc aaccagatct aaacgggttt 840
cacccggttt ctgcgggcta ccggcggtaa tcaccaccag atctgcggtg ccgcaatcac 900
tgtaatcgcc cttccaaacg cgtgtgctgg tcggggcaaa aggtaaacca tgattcagat 960
ccatggcttc gccctcggcc ttggcttcat tgatgtcaat cagcaccagc tcctcggcca 1020
caccttggtt aatcatggcg tagcaatagc tggtgcccac tgcaccggtg ccaaccacgg 1080
caatacggtt cacttttttc atggatccgc gacccatttg ctgtccacca gtcatgctag 1140
ccatatggct gccgcgcggc accaggccgc tgctgtgatg atgatgatga tggctgctgc 1200
ccatggtata tctccttctt aaagttaaac aaaattattt ctagagggga attgttatcc 1260
gctcacaatt cccctatagt gagtcgtatt aatttcgcgg gatcgagatc tcgatcctct 1320
acgccggacg catcgtggcc ggcatcaccg gcgccacagg tgcggttgct ggcgcctata 1380
tcgccgacat caccgatggg gaagatcggg ctcgccactt cgggctcatg agcgcttgtt 1440
tcggcgtggg tatggtggca ggccccgtgg ccgggggact gttgggcgcc atctccttgc 1500
atgcaccatt ccttgcggcg gcggtgctca acggcctcaa cctactactg ggctgcttcc 1560
taatgcagga gtcgcataag ggagagcgtc gagatcccgg acaccatcga atggcgcaaa 1620
acctttcgcg gtatggcatg atagcgcccg gaagagagtc aattcagggt ggtgaatgtg 1680
aaaccagtaa cgttatacga tgtcgcagag tatgccggtg tctcttatca gaccgtttcc 1740
cgcgtggtga accaggccag ccacgtttct gcgaaaacgc gggaaaaagt ggaagcggcg 1800
atggcggagc tgaattacat tcccaaccgc gtggcacaac aactggcggg caaacagtcg 1860
ttgctgattg gcgttgccac ctccagtctg gccctgcacg cgccgtcgca aattgtcgcg 1920
gcgattaaat ctcgcgccga tcaactgggt gccagcgtgg tggtgtcgat ggtagaacga 1980
agcggcgtcg aagcctgtaa agcggcggtg cacaatcttc tcgcgcaacg cgtcagtggg 2040
ctgatcatta actatccgct ggatgaccag gatgccattg ctgtggaagc tgcctgcact 2100
aatgttccgg cgttatttct tgatgtctct gaccagacac ccatcaacag tattattttc 2160
tcccatgaag acggtacgcg actgggcgtg gagcatctgg tcgcattggg tcaccagcaa 2220
atcgcgctgt tagcgggccc attaagttct gtctcggcgc gtctgcgtct ggctggctgg 2280
cataaatatc tcactcgcaa tcaaattcag ccgatagcgg aacgggaagg cgactggagt 2340
gccatgtccg gttttcaaca aaccatgcaa atgctgaatg agggcatcgt tcccactgcg 2400
atgctggttg ccaacgatca gatggcgctg ggcgcaatgc gcgccattac cgagtccggg 2460
ctgcgcgttg gtgcggatat ctcggtagtg ggatacgacg ataccgaaga cagctcatgt 2520
tatatcccgc cgttaaccac catcaaacag gattttcgcc tgctggggca aaccagcgtg 2580
gaccgcttgc tgcaactctc tcagggccag gcggtgaagg gcaatcagct gttgcccgtc 2640
tcactggtga aaagaaaaac caccctggcg cccaatacgc aaaccgcctc tccccgcgcg 2700
ttggccgatt cattaatgca gctggcacga caggtttccc gactggaaag cgggcagtga 2760
gcgcaacgca attaatgtaa gttagctcac tcattaggca ccgggatctc gaccgatgcc 2820
cttgagagcc ttcaacccag tcagctcctt ccggtgggcg cggggcatga ctatcgtcgc 2880
cgcacttatg actgtcttct ttatcatgca actcgtagga caggtgccgg cagcgctctg 2940
ggtcattttc ggcgaggacc gctttcgctg gagcgcgacg atgatcggcc tgtcgcttgc 3000
ggtattcgga atcttgcacg ccctcgctca agccttcgtc actggtcccg ccaccaaacg 3060
tttcggcgag aagcaggcca ttatcgccgg catggcggcc ccacgggtgc gcatgatcgt 3120
gctcctgtcg ttgaggaccc ggctaggctg gcggggttgc cttactggtt agcagaatga 3180
atcaccgata cgcgagcgaa cgtgaagcga ctgctgctgc aaaacgtctg cgacctgagc 3240
aacaacatga atggtcttcg gtttccgtgt ttcgtaaagt ctggaaacgc ggaagtcagc 3300
gccctgcacc attatgttcc ggatctgcat cgcaggatgc tgctggctac cctgtggaac 3360
acctacatct gtattaacga agcgctggca ttgaccctga gtgatttttc tctggtcccg 3420
ccgcatccat accgccagtt gtttaccctc acaacgttcc agtaaccggg catgttcatc 3480
atcagtaacc cgtatcgtga gcatcctctc tcgtttcatc ggtatcatta cccccatgaa 3540
cagaaatccc ccttacacgg aggcatcagt gaccaaacag gaaaaaaccg cccttaacat 3600
ggcccgcttt atcagaagcc agacattaac gcttctggag aaactcaacg agctggacgc 3660
ggatgaacag gcagacatct gtgaatcgct tcacgaccac gctgatgagc tttaccgcag 3720
ctgcctcgcg cgtttcggtg atgacggtga aaacctctga cacatgcagc tcccggagac 3780
ggtcacagct tgtctgtaag cggatgccgg gagcagacaa gcccgtcagg gcgcgtcagc 3840
gggtgttggc gggtgtcggg gcgcagccat gacccagtca cgtagcgata gcggagtgta 3900
tactggctta actatgcggc atcagagcag attgtactga gagtgcacca tatatgcggt 3960
gtgaaatacc gcacagatgc gtaaggagaa aataccgcat caggcgctct tccgcttcct 4020
cgctcactga ctcgctgcgc tcggtcgttc ggctgcggcg agcggtatca gctcactcaa 4080
aggcggtaat acggttatcc acagaatcag gggataacgc aggaaagaac atgtgagcaa 4140
aaggccagca aaaggccagg aaccgtaaaa aggccgcgtt gctggcgttt ttccataggc 4200
tccgcccccc tgacgagcat cacaaaaatc gacgctcaag tcagaggtgg cgaaacccga 4260
caggactata aagataccag gcgtttcccc ctggaagctc cctcgtgcgc tctcctgttc 4320
cgaccctgcc gcttaccgga tacctgtccg cctttctccc ttcgggaagc gtggcgcttt 4380
ctcatagctc acgctgtagg tatctcagtt cggtgtaggt cgttcgctcc aagctgggct 4440
gtgtgcacga accccccgtt cagcccgacc gctgcgcctt atccggtaac tatcgtcttg 4500
agtccaaccc ggtaagacac gacttatcgc cactggcagc agccactggt aacaggatta 4560
gcagagcgag gtatgtaggc ggtgctacag agttcttgaa gtggtggcct aactacggct 4620
acactagaag gacagtattt ggtatctgcg ctctgctgaa gccagttacc ttcggaaaaa 4680
gagttggtag ctcttgatcc ggcaaacaaa ccaccgctgg tagcggtggt ttttttgttt 4740
gcaagcagca gattacgcgc agaaaaaaag gatctcaaga agatcctttg atcttttcta 4800
cggggtctga cgctcagtgg aacgaaaact cacgttaagg gattttggtc atgaacaata 4860
aaactgtctg cttacataaa cagtaataca aggggtgtta tgagccatat tcaacgggaa 4920
acgtcttgct ctaggccgcg attaaattcc aacatggatg ctgatttata tgggtataaa 4980
tgggctcgcg ataatgtcgg gcaatcaggt gcgacaatct atcgattgta tgggaagccc 5040
gatgcgccag agttgtttct gaaacatggc aaaggtagcg ttgccaatga tgttacagat 5100
gagatggtca gactaaactg gctgacggaa tttatgcctc ttccgaccat caagcatttt 5160
atccgtactc ctgatgatgc atggttactc accactgcga tccccgggaa aacagcattc 5220
caggtattag aagaatatcc tgattcaggt gaaaatattg ttgatgcgct ggcagtgttc 5280
ctgcgccggt tgcattcgat tcctgtttgt aattgtcctt ttaacagcga tcgcgtattt 5340
cgtctcgctc aggcgcaatc acgaatgaat aacggtttgg ttgatgcgag tgattttgat 5400
gacgagcgta atggctggcc tgttgaacaa gtctggaaag aaatgcataa acttttgcca 5460
ttctcaccgg attcagtcgt cactcatggt gatttctcac ttgataacct tatttttgac 5520
gaggggaaat taataggttg tattgatgtt ggacgagtcg gaatcgcaga ccgataccag 5580
gatcttgcca tcctatggaa ctgcctcggt gagttttctc cttcattaca gaaacggctt 5640
tttcaaaaat atggtattga taatcctgat atgaataaat tgcagtttca tttgatgctc 5700
gatgagtttt tctaagaatt aattcatgag cggatacata tttgaatgta tttagaaaaa 5760
taaacaaata ggggttccgc gcacatttcc ccgaaaagtg ccacctgaaa ttgtaaacgt 5820
taatattttg ttaaaattcg cgttaaattt ttgttaaatc agctcatttt ttaaccaata 5880
ggccgaaatc ggcaaaatcc cttataaatc aaaagaatag accgagatag ggttgagtgt 5940
tgttccagtt tggaacaaga gtccactatt aaagaacgtg gactccaacg tcaaagggcg 6000
aaaaaccgtc tatcagggcg atggcccact acgtgaacca tcaccctaat caagtttttt 6060
ggggtcgagg tgccgtaaag cactaaatcg gaaccctaaa gggagccccc gatttagagc 6120
ttgacgggga aagccggcga acgtggcgag aaaggaaggg aagaaagcga aaggagcggg 6180
cgctagggcg ctggcaagtg tagcggtcac gctgcgcgta accaccacac ccgccgcgct 6240
taatgcgccg ctacagggcg cgtcccattc gcca 6274
<210> 11
<211> 6631
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 11
tggcgaatgg gacgcgccct gtagcggcgc attaagcgcg gcgggtgtgg tggttacgcg 60
cagcgtgacc gctacacttg ccagcgccct agcgcccgct cctttcgctt tcttcccttc 120
ctttctcgcc acgttcgccg gctttccccg tcaagctcta aatcgggggc tccctttagg 180
gttccgattt agtgctttac ggcacctcga ccccaaaaaa cttgattagg gtgatggttc 240
acgtagtggg ccatcgccct gatagacggt ttttcgccct ttgacgttgg agtccacgtt 300
ctttaatagt ggactcttgt tccaaactgg aacaacactc aaccctatct cggtctattc 360
ttttgattta taagggattt tgccgatttc ggcctattgg ttaaaaaatg agctgattta 420
acaaaaattt aacgcgaatt ttaacaaaat attaacgttt acaatttcag gtggcacttt 480
tcggggaaat gtgcgcggaa cccctatttg tttatttttc taaatacatt caaatatgta 540
tccgctcatg aattaattct tagaaaaact catcgagcat caaatgaaac tgcaatttat 600
tcatatcagg attatcaata ccatattttt gaaaaagccg tttctgtaat gaaggagaaa 660
actcaccgag gcagttccat aggatggcaa gatcctggta tcggtctgcg attccgactc 720
gtccaacatc aatacaacct attaatttcc cctcgtcaaa aataaggtta tcaagtgaga 780
aatcaccatg agtgacgact gaatccggtg agaatggcaa aagtttatgc atttctttcc 840
agacttgttc aacaggccag ccattacgct cgtcatcaaa atcactcgca tcaaccaaac 900
cgttattcat tcgtgattgc gcctgagcga gacgaaatac gcgatcgctg ttaaaaggac 960
aattacaaac aggaatcgaa tgcaaccggc gcaggaacac tgccagcgca tcaacaatat 1020
tttcacctga atcaggatat tcttctaata cctggaatgc tgttttcccg gggatcgcag 1080
tggtgagtaa ccatgcatca tcaggagtac ggataaaatg cttgatggtc ggaagaggca 1140
taaattccgt cagccagttt agtctgacca tctcatctgt aacatcattg gcaacgctac 1200
ctttgccatg tttcagaaac aactctggcg catcgggctt cccatacaat cgatagattg 1260
tcgcacctga ttgcccgaca ttatcgcgag cccatttata cccatataaa tcagcatcca 1320
tgttggaatt taatcgcggc ctagagcaag acgtttcccg ttgaatatgg ctcataacac 1380
cccttgtatt actgtttatg taagcagaca gttttattgt tcatgaccaa aatcccttaa 1440
cgtgagtttt cgttccactg agcgtcagac cccgtagaaa agatcaaagg atcttcttga 1500
gatccttttt ttctgcgcgt aatctgctgc ttgcaaacaa aaaaaccacc gctaccagcg 1560
gtggtttgtt tgccggatca agagctacca actctttttc cgaaggtaac tggcttcagc 1620
agagcgcaga taccaaatac tgtccttcta gtgtagccgt agttaggcca ccacttcaag 1680
aactctgtag caccgcctac atacctcgct ctgctaatcc tgttaccagt ggctgctgcc 1740
agtggcgata agtcgtgtct taccgggttg gactcaagac gatagttacc ggataaggcg 1800
cagcggtcgg gctgaacggg gggttcgtgc acacagccca gcttggagcg aacgacctac 1860
accgaactga gatacctaca gcgtgagcta tgagaaagcg ccacgcttcc cgaagggaga 1920
aaggcggaca ggtatccggt aagcggcagg gtcggaacag gagagcgcac gagggagctt 1980
ccagggggaa acgcctggta tctttatagt cctgtcgggt ttcgccacct ctgacttgag 2040
cgtcgatttt tgtgatgctc gtcagggggg cggagcctat ggaaaaacgc cagcaacgcg 2100
gcctttttac ggttcctggc cttttgctgg ccttttgctc acatgttctt tcctgcgtta 2160
tcccctgatt ctgtggataa ccgtattacc gcctttgagt gagctgatac cgctcgccgc 2220
agccgaacga ccgagcgcag cgagtcagtg agcgaggaag cggaagagcg cctgatgcgg 2280
tattttctcc ttacgcatct gtgcggtatt tcacaccgca tatatggtgc actctcagta 2340
caatctgctc tgatgccgca tagttaagcc agtatacact ccgctatcgc tacgtgactg 2400
ggtcatggct gcgccccgac acccgccaac acccgctgac gcgccctgac gggcttgtct 2460
gctcccggca tccgcttaca gacaagctgt gaccgtctcc gggagctgca tgtgtcagag 2520
gttttcaccg tcatcaccga aacgcgcgag gcagctgcgg taaagctcat cagcgtggtc 2580
gtgaagcgat tcacagatgt ctgcctgttc atccgcgtcc agctcgttga gtttctccag 2640
aagcgttaat gtctggcttc tgataaagcg ggccatgtta agggcggttt tttcctgttt 2700
ggtcactgat gcctccgtgt aagggggatt tctgttcatg ggggtaatga taccgatgaa 2760
acgagagagg atgctcacga tacgggttac tgatgatgaa catgcccggt tactggaacg 2820
ttgtgagggt aaacaactgg cggtatggat gcggcgggac cagagaaaaa tcactcaggg 2880
tcaatgccag cgcttcgtta atacagatgt aggtgttcca cagggtagcc agcagcatcc 2940
tgcgatgcag atccggaaca taatggtgca gggcgctgac ttccgcgttt ccagacttta 3000
cgaaacacgg aaaccgaaga ccattcatgt tgttgctcag gtcgcagacg ttttgcagca 3060
gcagtcgctt cacgttcgct cgcgtatcgg tgattcattc tgctaaccag taaggcaacc 3120
ccgccagcct agccgggtcc tcaacgacag gagcacgatc atgcgcaccc gtggggccgc 3180
catgccggcg ataatggcct gcttctcgcc gaaacgtttg gtggcgggac cagtgacgaa 3240
ggcttgagcg agggcgtgca agattccgaa taccgcaagc gacaggccga tcatcgtcgc 3300
gctccagcga aagcggtcct cgccgaaaat gacccagagc gctgccggca cctgtcctac 3360
gagttgcatg ataaagaaga cagtcataag tgcggcgacg atagtcatgc cccgcgccca 3420
ccggaaggag ctgactgggt tgaaggctct caagggcatc ggtcgagatc ccggtgccta 3480
atgagtgagc taacttacat taattgcgtt gcgctcactg cccgctttcc agtcgggaaa 3540
cctgtcgtgc cagctgcatt aatgaatcgg ccaacgcgcg gggagaggcg gtttgcgtat 3600
tgggcgccag ggtggttttt cttttcacca gtgagacggg caacagctga ttgcccttca 3660
ccgcctggcc ctgagagagt tgcagcaagc ggtccacgct ggtttgcccc agcaggcgaa 3720
aatcctgttt gatggtggtt aacggcggga tataacatga gctgtcttcg gtatcgtcgt 3780
atcccactac cgagatatcc gcaccaacgc gcagcccgga ctcggtaatg gcgcgcattg 3840
cgcccagcgc catctgatcg ttggcaacca gcatcgcagt gggaacgatg ccctcattca 3900
gcatttgcat ggtttgttga aaaccggaca tggcactcca gtcgccttcc cgttccgcta 3960
tcggctgaat ttgattgcga gtgagatatt tatgccagcc agccagacgc agacgcgccg 4020
agacagaact taatgggccc gctaacagcg cgatttgctg gtgacccaat gcgaccagat 4080
gctccacgcc cagtcgcgta ccgtcttcat gggagaaaat aatactgttg atgggtgtct 4140
ggtcagagac atcaagaaat aacgccggaa cattagtgca ggcagcttcc acagcaatgg 4200
catcctggtc atccagcgga tagttaatga tcagcccact gacgcgttgc gcgagaagat 4260
tgtgcaccgc cgctttacag gcttcgacgc cgcttcgttc taccatcgac accaccacgc 4320
tggcacccag ttgatcggcg cgagatttaa tcgccgcgac aatttgcgac ggcgcgtgca 4380
gggccagact ggaggtggca acgccaatca gcaacgactg tttgcccgcc agttgttgtg 4440
ccacgcggtt gggaatgtaa ttcagctccg ccatcgccgc ttccactttt tcccgcgttt 4500
tcgcagaaac gtggctggcc tggttcacca cgcgggaaac ggtctgataa gagacaccgg 4560
catactctgc gacatcgtat aacgttactg gtttcacatt caccaccctg aattgactct 4620
cttccgggcg ctatcatgcc ataccgcgaa aggttttgcg ccattcgatg gtgtccggga 4680
tctcgacgct ctcccttatg cgactcctgc attaggaagc agcccagtag taggttgagg 4740
ccgttgagca ccgccgccgc aaggaatggt gcatgcaagg agatggcgcc caacagtccc 4800
ccggccacgg ggcctgccac catacccacg ccgaaacaag cgctcatgag cccgaagtgg 4860
cgagcccgat cttccccatc ggtgatgtcg gcgatatagg cgccagcaac cgcacctgtg 4920
gcgccggtga tgccggccac gatgcgtccg gcgtagagga tcgagatctc gatcccgcga 4980
aattaatacg actcactata ggggaattgt gagcggataa caattcccct ctagaaataa 5040
ttttgtttaa ctttaagaag gagatatacc atgggcagca gccatcatca tcatcatcac 5100
agcagcggcc tggtgccgcg cggcagccat atgaagattg tggtgattgg caccaaccat 5160
gcgggtattg cgactgcgaa caccctgatt gatcagtatc cgggccatga aattgtgatg 5220
attgatcgca acagcaacat gagctatctg ggttgcggca ccgcgatttg ggttggccgc 5280
cagattgaaa aaccggacga gctgttttat gcgaaagcgg aggactttga aaaaaagggc 5340
gtgaagattc tgaccgaaac cgaagtgagc gaaattgact tcaccaacaa gatgatttac 5400
gcgaaaagca aaaccggcga gaaaattacc gagagctacg ataaactggt gctggcgact 5460
ggtagccgcc ctattattcc taacctgccg ggcaaagatc tgaaaggcat ccatttcctg 5520
aaactgtttc aggaaggcca ggcgattgat gaagaatttg cgaagaacga tgtgaaacgc 5580
attgcggtga ttggcgcggg ttatattggc accgaaattg cggaagcggc gaaacgccgt 5640
ggtaaagaag tgctgctgtt tgatgcggaa agcaccagcc tggcgagcta ttatgatgag 5700
gaattcgcga aaggcatgga tgaaaacctg gcgcagcatg gcattgaact gcattttggc 5760
gaactggcgc aggaatttaa agcgaacgaa aaaggccatg tgagccagat tgtgaccaac 5820
aaaagcacct atgatgtgga tctggtgatt aactgcattg gctttaccgc gaactcagcg 5880
ttagcgggcg aacatctgga aacctttaaa aacggcgcga tcaaagtgga taaacatcag 5940
cagagcagcg atccggatgt gtatgcggtt ggcgatgtgg cgaccattta tagcaacgcg 6000
ctgcaggatt ttacctatat tgcgctggcg agcaatgcag ttcgtagcgg tattgtggcg 6060
ggccataaca ttggcggcaa aagcattgaa agcgtgggtg tgcaaggcag caacggcatt 6120
agcattttcg gctataacat gaccagcacc ggcctgtcag ttaaagcggc gaaaaaaatt 6180
agcctggagg tgagctttag cgactttgaa gacaaacaga aagcgtggtt tctgcatgaa 6240
aacaacgata gcgtgaaaat ccgcattgtg tatgaaacca acagccgccg cattattggt 6300
gcacagctgg cgagcaaaag cgaaattatt gcgggcaaca tcaacatgtt tagcctggcg 6360
attcaggaaa aaaagaccat tgatgaactg gcgctgctgg atctgttttt tctgccgcat 6420
tttaacagcc cgtacaacta tatgaccgtg gcggcgctga acgcgaaact cgagcaccac 6480
caccaccacc actgagatcc ggctgctaac aaagcccgaa aggaagctga gttggctgct 6540
gccaccgctg agcaataact agcataaccc cttggggcct ctaaacgggt cttgaggggt 6600
tttttgctga aaggaggaac tatatccgga t 6631
<210> 12
<211> 528
<212> DNA
<213> 大肠杆菌(Escherichia coli BL21DE3)
<400> 12
tgccagcaga gagtaaatac ggcgatcggc ggcataaaac ggatcgcata acgcgtcatc 60
ttgataacgc gattttcgac aaagaccggg gcaaggcgtt tttccagcgg ccacgtcttt 120
gagtaatgct gtccccggcg aaacaagcta aaaaaattaa cagaacgatt atccggcgtt 180
gacatgcttc acctcaactt cacatataaa gattcaaaaa tttgtgcaaa ttcacaactc 240
agcgggacaa cgttcaaaac attttgtctt ccatacccac tatcaggtat cctttagcag 300
cctgaaggcc taagtagtac atattcattg agtcgtcaaa ttcatataca ttatgccatt 360
ggctgaaaat tacgcaaaat ggcatagact caagatattt cttccatcat gcaaaaaaaa 420
tttgcagtgc atgatgttaa tcataaatgt cggtgtcatc atgcgctacg ctctatggct 480
ccctgacgtt tttttagcca cgtatcaatt ataggtactt ccattacc 528
<210> 13
<211> 774
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 13
aggtacttcc attaccctgt tatccctact aagcacttgt ctcctgttta ctcccctgag 60
cttgaggggt caacatgaag gtcattgata gcaggataat aatacagtaa aacgctaaac 120
caataatcca aatccagcca tcccaaattg gtagtgaatg attataaata acagtaaaca 180
gtaatgggcc aataacaccg gttgcattgg taaggctcac caataatccc tgtaaagcac 240
cttgctcatg actctttgtt tggatagaca tcactccctg taatgcaggt aaagcgatcc 300
caccaccagc caataaaatt aaaacaggga aatctaacca accttcagat ataaacgcta 360
aaaaggcaaa tgcactacta tctgcaataa attcgagcag tactgccgtt ttttcgcccc 420
atttagtggc tattcttcct gccacaaagg cttggaatac tgagtgtaaa agaccaagac 480
ccgctaatga aaagccaacc atcatgctat tccatccaaa acgattttcg gtaaatagca 540
cccacaccgt tgcgggaatt tggcctatca attgcgctga aaaataaata atcaacaaaa 600
tgggcatcgt tttaaataaa gtgatgtaca ccgaatttga ttgcgtctca acccctactt 660
cggtatctgt attatcacgt gtatttttgg tttcacggaa ccaaaacata accacaagga 720
aagtgacaat atttagcaac gcagcgataa aaaagggact atgcggtgaa atct 774
<210> 14
<211> 713
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 14
ccgaatttga ttgcgtctca acccctactt cggtatctgt attatcacgt gtatttttgg 60
tttcacggaa ccaaaacata accacaagga aagtgacaat atttagcaac gcagcgataa 120
aaaagggact atgcggtgaa atctctcctg caaaaccacc aataataggc cccgctatta 180
aaccaagccc aaaacttgcc cctaaccaac cgaaccactt cacgcgttga gaagctgagg 240
tggtatcggc aatgaccgat gccgcgacag ccccagtagc tcctgtgatc cctgaaagca 300
aacggcctaa atacagcatc caaagcgcac ttgaaaaagc cagcaataag taatccagcg 360
atgcgcctat taatgacaac aacagcactg ggcgccgacc aaatcggtca gacatttttc 420
caagccaagg agcaaagata acctgcatta acgcataaag tgcaagcaat acgccaaagt 480
ggttagcgat atcttccgaa gcaataaatt cacgtaataa cgttggcaag actggcatga 540
taaggccaat ccccatggca tcgagtaacg taattaccaa tgcgatcttt gtcgaactat 600
tcatattcac caccctgaat tgactctctt ccgggcgcta tcatgccata cgcgaaaggt 660
ggtgtcaacg taaatattac cctgttatcc ctacgttttt ttagccacgt atc 713
<210> 15
<211> 462
<212> DNA
<213> 大肠杆菌(Escherichia coli BL21DE3)
<400> 15
cgttttttta gccacgtatc aattataggt acttcctctc gtcatcatcc gcagctttgc 60
gctgcggata tctgaaccgg aaataatcac tatttccggt tttttattct cttaatttgc 120
attaatcctt tctgattatc ttgcttaact gcgctgcatc aatgaattgc gccatcccac 180
tttgcatact taccactttg ttttgtgcaa gggaatattt gcgctatgtc cgcaatcact 240
gaatccaaac caacaagaag atgggcaatg cccgatacgt tggtgattat cttttttgtt 300
gctattttaa ccagccttgc cacctgggta gttccggtgg ggatgtttga cagtcaggaa 360
gtgcagtatc aggttgatgg tcaaacaaaa acacgcaaag tcgtagatcc acactcattt 420
cgcattctga ctaacgaagc aggcgaacct gagtatcacc gc 462
<210> 16
<211> 2297
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 16
tgccagcaga gagtaaatac ggcgatcggc ggcataaaac ggatcgcata acgcgtcatc 60
ttgataacgc gattttcgac aaagaccggg gcaaggcgtt tttccagcgg ccacgtcttt 120
gagtaatgct gtccccggcg aaacaagcta aaaaaattaa cagaacgatt atccggcgtt 180
gacatgcttc acctcaactt cacatataaa gattcaaaaa tttgtgcaaa ttcacaactc 240
agcgggacaa cgttcaaaac attttgtctt ccatacccac tatcaggtat cctttagcag 300
cctgaaggcc taagtagtac atattcattg agtcgtcaaa ttcatataca ttatgccatt 360
ggctgaaaat tacgcaaaat ggcatagact caagatattt cttccatcat gcaaaaaaaa 420
tttgcagtgc atgatgttaa tcataaatgt cggtgtcatc atgcgctacg ctctatggct 480
ccctgacgtt tttttagcca cgtatcaatt ataggtactt ccattaccct gttatcccta 540
ctaagcactt gtctcctgtt tactcccctg agcttgaggg gtcaacatga aggtcattga 600
tagcaggata ataatacagt aaaacgctaa accaataatc caaatccagc catcccaaat 660
tggtagtgaa tgattataaa taacagtaaa cagtaatggg ccaataacac cggttgcatt 720
ggtaaggctc accaataatc cctgtaaagc accttgctca tgactctttg tttggataga 780
catcactccc tgtaatgcag gtaaagcgat cccaccacca gccaataaaa ttaaaacagg 840
gaaatctaac caaccttcag atataaacgc taaaaaggca aatgcactac tatctgcaat 900
aaattcgagc agtactgccg ttttttcgcc ccatttagtg gctattcttc ctgccacaaa 960
ggcttggaat actgagtgta aaagaccaag acccgctaat gaaaagccaa ccatcatgct 1020
attccatcca aaacgatttt cggtaaatag cacccacacc gttgcgggaa tttggcctat 1080
caattgcgct gaaaaataaa taatcaacaa aatgggcatc gttttaaata aagtgatgta 1140
caccgaattt gattgcgtct caacccctac ttcggtatct gtattatcac gtgtattttt 1200
ggtttcacgg aaccaaaaca taaccacaag gaaagtgaca atatttagca acgcagcgat 1260
aaaaaaggga ctatgcggtg aaatctctcc tgcaaaacca ccaataatag gccccgctat 1320
taaaccaagc ccaaaacttg cccctaacca accgaaccac ttcacgcgtt gagaagctga 1380
ggtggtatcg gcaatgaccg atgccgcgac agccccagta gctcctgtga tccctgaaag 1440
caaacggcct aaatacagca tccaaagcgc acttgaaaaa gccagcaata agtaatccag 1500
cgatgcgcct attaatgaca acaacagcac tgggcgccga ccaaatcggt cagacatttt 1560
tccaagccaa ggagcaaaga taacctgcat taacgcataa agtgcaagca atacgccaaa 1620
gtggttagcg atatcttccg aagcaataaa ttcacgtaat aacgttggca agactggcat 1680
gataaggcca atccccatgg catcgagtaa cgtaattacc aatgcgatct ttgtcgaact 1740
attcatattc accaccctga attgactctc ttccgggcgc tatcatgcca tacgcgaaag 1800
gtggtgtcaa cgtaaatatt accctgttat ccctacgttt ttttagccac gtatcaatta 1860
taggtacttc ctctcgtcat catccgcagc tttgcgctgc ggatatctga accggaaata 1920
atcactattt ccggtttttt attctcttaa tttgcattaa tcctttctga ttatcttgct 1980
taactgcgct gcatcaatga attgcgccat cccactttgc atacttacca ctttgttttg 2040
tgcaagggaa tatttgcgct atgtccgcaa tcactgaatc caaaccaaca agaagatggg 2100
caatgcccga tacgttggtg attatctttt ttgttgctat tttaaccagc cttgccacct 2160
gggtagttcc ggtggggatg tttgacagtc aggaagtgca gtatcaggtt gatggtcaaa 2220
caaaaacacg caaagtcgta gatccacact catttcgcat tctgactaac gaagcaggcg 2280
aacctgagta tcaccgc 2297
<210> 17
<211> 528
<212> DNA
<213> 大肠杆菌(Escherichia coli BL21DE3)
<400> 17
ggctccgtat atggattggg tagagcagga agtgaaagcg ctcggcgtga cgcgtttctt 60
taaagagaaa ttcttcaccc cagtagcaga agcggcgacc agcggtctga aattcaccaa 120
actgcaaccg gcacgagaat tttacgcccc ggttggcacc acgctactgg aggcgctgga 180
aagcaataac gttccggttg tcgctgcctg ccgtgcgggt gtttgcggct gctgtaagac 240
aaaagtggtt tccggtgaat atacggtgag cagcacaatg acgctgaccg acgccgaaat 300
cgctgaaggt tacgtactgg cctgctcctg ccatccgcag ggggatttgg ttctcgcata 360
atcgccttat gcccgatgat attcctttca tcgggctatt taaccgttag tgcctccttt 420
ctctcccatc ccttccccct ccgtcagatg aactaaactt gttaccgtta tcacattcag 480
gagatggaga accaaagggt ggcatttccc gtcataataa ggacatgc 528
<210> 18
<211> 784
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 18
ccgtcataat aaggacatgc attaccctgt tatccctact aagcacttgt ctcctgttta 60
ctcccctgag cttgaggggt caacatgaag gtcattgata gcaggataat aatacagtaa 120
aacgctaaac caataatcca aatccagcca tcccaaattg gtagtgaatg attataaata 180
acagtaaaca gtaatgggcc aataacaccg gttgcattgg taaggctcac caataatccc 240
tgtaaagcac cttgctcatg actctttgtt tggatagaca tcactccctg taatgcaggt 300
aaagcgatcc caccaccagc caataaaatt aaaacaggga aatctaacca accttcagat 360
ataaacgcta aaaaggcaaa tgcactacta tctgcaataa attcgagcag tactgccgtt 420
ttttcgcccc atttagtggc tattcttcct gccacaaagg cttggaatac tgagtgtaaa 480
agaccaagac ccgctaatga aaagccaacc atcatgctat tccatccaaa acgattttcg 540
gtaaatagca cccacaccgt tgcgggaatt tggcctatca attgcgctga aaaataaata 600
atcaacaaaa tgggcatcgt tttaaataaa gtgatgtaca ccgaatttga ttgcgtctca 660
acccctactt cggtatctgt attatcacgt gtatttttgg tttcacggaa ccaaaacata 720
accacaagga aagtgacaat atttagcaac gcagcgataa aaaagggact atgcggtgaa 780
atct 784
<210> 19
<211> 703
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 19
ccgaatttga ttgcgtctca acccctactt cggtatctgt attatcacgt gtatttttgg 60
tttcacggaa ccaaaacata accacaagga aagtgacaat atttagcaac gcagcgataa 120
aaaagggact atgcggtgaa atctctcctg caaaaccacc aataataggc cccgctatta 180
aaccaagccc aaaacttgcc cctaaccaac cgaaccactt cacgcgttga gaagctgagg 240
tggtatcggc aatgaccgat gccgcgacag ccccagtagc tcctgtgatc cctgaaagca 300
aacggcctaa atacagcatc caaagcgcac ttgaaaaagc cagcaataag taatccagcg 360
atgcgcctat taatgacaac aacagcactg ggcgccgacc aaatcggtca gacatttttc 420
caagccaagg agcaaagata acctgcatta acgcataaag tgcaagcaat acgccaaagt 480
ggttagcgat atcttccgaa gcaataaatt cacgtaataa cgttggcaag actggcatga 540
taaggccaat ccccatggca tcgagtaacg taattaccaa tgcgatcttt gtcgaactat 600
tcatattcac caccctgaat tgactctctt ccgggcgcta tcatgccata cgcgaaaggt 660
ggtgtcaacg taaatattac cctgttatcc ctaaaagggt ggc 703
<210> 20
<211> 500
<212> DNA
<213> 大肠杆菌(Escherichia coli BL21DE3)
<400> 20
atccctaaaa gggtggcatt tcccgtcata ataaggacat gccatgattg atttacgcag 60
tgataccgtt acccgaccaa gccgcgccat gctcgaagcg atgatggccg ccccggttgg 120
ggacgacgtt tacggagacg accctaccgt taatgctctg caggactacg cagcagagct 180
ttccggtaaa gaagccgcca tttttctgcc taccggcact caggccaacc tggtcgctct 240
gctcagtcac tgcgaacgcg gcgaagagta tattgtcggt caggccgcgc ataactatct 300
gtttgaagcc ggtggcgcgg cggtgctggg cagtattcaa ccgcaaccca tagacgcggc 360
tgccgacggc acgctaccgc tggataaagt ggcgatgaaa atcaaacccg acgatatcca 420
tttcgcccgc accaaattac tcagtctgga aaacacccac aacggcaaag tgttgccgcg 480
ggaatacctg aaagaagcat 500
<210> 21
<211> 2334
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 21
ggctccgtat atggattggg tagagcagga agtgaaagcg ctcggcgtga cgcgtttctt 60
taaagagaaa ttcttcaccc cagtagcaga agcggcgacc agcggtctga aattcaccaa 120
actgcaaccg gcacgagaat tttacgcccc ggttggcacc acgctactgg aggcgctgga 180
aagcaataac gttccggttg tcgctgcctg ccgtgcgggt gtttgcggct gctgtaagac 240
aaaagtggtt tccggtgaat atacggtgag cagcacaatg acgctgaccg acgccgaaat 300
cgctgaaggt tacgtactgg cctgctcctg ccatccgcag ggggatttgg ttctcgcata 360
atcgccttat gcccgatgat attcctttca tcgggctatt taaccgttag tgcctccttt 420
ctctcccatc ccttccccct ccgtcagatg aactaaactt gttaccgtta tcacattcag 480
gagatggaga accaaagggt ggcatttccc gtcataataa ggacatgcat taccctgtta 540
tccctactaa gcacttgtct cctgtttact cccctgagct tgaggggtca acatgaaggt 600
cattgatagc aggataataa tacagtaaaa cgctaaacca ataatccaaa tccagccatc 660
ccaaattggt agtgaatgat tataaataac agtaaacagt aatgggccaa taacaccggt 720
tgcattggta aggctcacca ataatccctg taaagcacct tgctcatgac tctttgtttg 780
gatagacatc actccctgta atgcaggtaa agcgatccca ccaccagcca ataaaattaa 840
aacagggaaa tctaaccaac cttcagatat aaacgctaaa aaggcaaatg cactactatc 900
tgcaataaat tcgagcagta ctgccgtttt ttcgccccat ttagtggcta ttcttcctgc 960
cacaaaggct tggaatactg agtgtaaaag accaagaccc gctaatgaaa agccaaccat 1020
catgctattc catccaaaac gattttcggt aaatagcacc cacaccgttg cgggaatttg 1080
gcctatcaat tgcgctgaaa aataaataat caacaaaatg ggcatcgttt taaataaagt 1140
gatgtacacc gaatttgatt gcgtctcaac ccctacttcg gtatctgtat tatcacgtgt 1200
atttttggtt tcacggaacc aaaacataac cacaaggaaa gtgacaatat ttagcaacgc 1260
agcgataaaa aagggactat gcggtgaaat ctctcctgca aaaccaccaa taataggccc 1320
cgctattaaa ccaagcccaa aacttgcccc taaccaaccg aaccacttca cgcgttgaga 1380
agctgaggtg gtatcggcaa tgaccgatgc cgcgacagcc ccagtagctc ctgtgatccc 1440
tgaaagcaaa cggcctaaat acagcatcca aagcgcactt gaaaaagcca gcaataagta 1500
atccagcgat gcgcctatta atgacaacaa cagcactggg cgccgaccaa atcggtcaga 1560
catttttcca agccaaggag caaagataac ctgcattaac gcataaagtg caagcaatac 1620
gccaaagtgg ttagcgatat cttccgaagc aataaattca cgtaataacg ttggcaagac 1680
tggcatgata aggccaatcc ccatggcatc gagtaacgta attaccaatg cgatctttgt 1740
cgaactattc atattcacca ccctgaattg actctcttcc gggcgctatc atgccatacg 1800
cgaaaggtgg tgtcaacgta aatattaccc tgttatccct aaaagggtgg catttcccgt 1860
cataataagg acatgccatg attgatttac gcagtgatac cgttacccga ccaagccgcg 1920
ccatgctcga agcgatgatg gccgccccgg ttggggacga cgtttacgga gacgacccta 1980
ccgttaatgc tctgcaggac tacgcagcag agctttccgg taaagaagcc gccatttttc 2040
tgcctaccgg cactcaggcc aacctggtcg ctctgctcag tcactgcgaa cgcggcgaag 2100
agtatattgt cggtcaggcc gcgcataact atctgtttga agccggtggc gcggcggtgc 2160
tgggcagtat tcaaccgcaa cccatagacg cggctgccga cggcacgcta ccgctggata 2220
aagtggcgat gaaaatcaaa cccgacgata tccatttcgc ccgcaccaaa ttactcagtc 2280
tggaaaacac ccacaacggc aaagtgttgc cgcgggaata cctgaaagaa gcat 2334
<210> 22
<211> 20
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 22
tgccagcaga gagtaaatac 20
<210> 23
<211> 60
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 23
ggtaatggaa gtacctataa ttgatacgtg gctaaaaaaa cgtcagggag ccatagagcg 60
<210> 24
<211> 48
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 24
aggtacttcc attaccctgt tatccctact aagcacttgt ctcctgtt 48
<210> 25
<211> 19
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 25
agatttcacc gcatagtcc 19
<210> 26
<211> 19
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 26
ccgaatttga ttgcgtctc 19
<210> 27
<211> 58
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 27
gatacgtggc taaaaaaacg tagggataac agggtaatat ttacgttgac accacctt 58
<210> 28
<211> 54
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 28
cgttttttta gccacgtatc aattataggt acttcctctc gtcatcatcc gcag 54
<210> 29
<211> 18
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 29
gcggtgatac tcaggttc 18
<210> 30
<211> 19
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 30
ggctccgtat atggattgg 19
<210> 31
<211> 53
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 31
gcatgtcctt attatgacgg gaaatgccac cctttggttc tccatctcct gaa 53
<210> 32
<211> 58
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 32
ccgtcataat aaggacatgc attaccctgt tatccctact aagcacttgt ctcctgtt 58
<210> 33
<211> 19
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 33
agatttcacc gcatagtcc 19
<210> 34
<211> 19
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 34
ccgaatttga ttgcgtctc 19
<210> 35
<211> 48
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 35
gccacccttt tagggataac agggtaatat ttacgttgac accacctt 48
<210> 36
<211> 61
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 36
atccctaaaa gggtggcatt tcccgtcata ataaggacat gccatgattg atttacgcag 60
t 61
<210> 37
<211> 20
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 37
atgcttcttt caggtattcc 20
<210> 38
<211> 58
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 38
atgaaaacga aagctctcta aggatccgaa ggagatgggc aatgaaaaaa gtgaaccg 58
<210> 39
<211> 46
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 39
ccttcttctc cttcaagctt aacaaattac agaacggggg ccatgg 46
<210> 40
<211> 38
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 40
gttaagcttg aaggagaaga aggatgaaga ttgtggtg 38
<210> 41
<211> 35
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 41
acgtcctcga gtttcgcgtt cagcgccgcc acggt 35
<210> 42
<211> 36
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 42
gtacggctag catgaaacga gaaagcaaca ttcaag 36
<210> 43
<211> 48
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 43
ccaccgcccg agccaccgcc accttcaggg cttccttcag ttgtttcg 48
<210> 44
<211> 49
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 44
ggcggtggct cgggcggtgg tgggtcgatg acaaaagcaa caaaagaac 49
<210> 45
<211> 58
<212> DNA
<213> 人工序列(Artificial Sequence)
<400> 45
cggttcactt ttttcattgc ccatctcctt cggatcctta gagagctttc gttttcat 58
Claims (5)
1.产乙偶姻的大肠杆菌工程菌,其构建方法为通过共表达α-乙酰乳酸合成酶、α-乙酰乳酸脱羧酶、乳酸脱氢酶和NADH氧化酶,得到产乙偶姻的大肠杆菌工程菌;
构建大肠杆菌工程菌中使用的宿主菌为突变型大肠杆菌BL-2,
所述突变型大肠杆菌BL-2为将大肠杆菌Escherichia coli BL21(DE3)中乙酸生成途径的磷酸乙酰转移酶和乙酸裂解酶编码基因pta-ackA和丙酮酸氧化酶编码基因poxB敲除后得到;
所述α-乙酰乳酸合成酶的氨基酸序列如SEQ ID No.1所示;
所述α-乙酰乳酸脱羧酶的氨基酸序列如SEQ ID No.2所示;
所述乳酸脱氢酶的氨基酸序列为SEQ ID No.3;
所述NADH氧化酶的氨基酸序列为SEQ ID No.4。
2.根据权利要求1所述的产乙偶姻的大肠杆菌工程菌,其特征在于所述共表达的方法为:利用重组表达载体向所述宿主菌中导入所述α-乙酰乳酸合成酶的编码基因alsS、α-乙酰乳酸脱羧酶的编码基因aldC、乳酸脱氢酶的编码基因ldh和NADH氧化酶的编码基因nox;
所述重组表达载体为pET28a-aldC-S2-alsS-ldh-nox;
所述α-乙酰乳酸合成酶的编码基因alsS的核苷酸序列如SEQ ID NO.5所示;
所述α-乙酰乳酸脱羧酶的编码基因aldC的核苷酸序列如SEQ ID NO.6所示;
所述S2的核苷酸序列如SEQ ID NO.7所示;
所述乳酸脱氢酶的编码基因ldh的核苷酸序列如SEQ ID NO.8所示;
所述NADH氧化酶的编码基因nox的核苷酸序列如SEQ ID NO.9所示;
所述重组表达载体的基本载体是pET28a。
3.权利要求1或2的产乙偶姻的大肠杆菌工程菌的构建方法,其特征在于包括如下步骤:
1)以引物LDH-F为上游引物,以引物LDH-R为下游引物,以载体pET28a-ldh为模板,经PCR,制备含乳酸脱氢酶的编码基因ldh的片段ldh-1;
以引物NOX-F为上游引物,以NOX-R为下游引物,以载体pET28a-nox为模板,经PCR,制备含NADH氧化酶的编码基因nox的片段nox-1;
以引物LDH-F为上游引物,以NOX-R为下游引物,利用片段ldh-1和nox-1,经PCR,制备融合片段ldh-nox;
2)以引物aldC-F为上游引物,以aldC-R为下游引物,以枯草芽孢杆菌Bacillussubtilis 168基因组为模板,经PCR,制备含有α-乙酰乳酸脱羧酶的编码基因aldC和部分S2的片段aldC-1;
以引物alsS-F为上游引物,以alsS-R为下游引物,以枯草芽孢杆菌Bacillus subtilis168基因组为模板,经PCR,制备含有α-乙酰乳酸合成酶的编码基因alsS和另外部分S2的片段alsS-1;
以引物aldC-F为上游引物,以alsS-R为下游引物,利用片段aldC-1和alsS-1,制备融合片段aldC-S2-alsS;
3)以引物aldC-F为上游引物,以NOX-R为下游引物,利用片段ldh-nox和aldC-S2-alsS,经PCR,制备融合片段aldC-S2-alsS-ldh-nox;
将融合片段aldC-S2-alsS-ldh-nox与pET28a通过NheI/XhoI双酶切,经连接、转化后得到质粒pET28a-aldC-S2-alsS-ldh-nox;将质粒pET28a-aldC-S2-alsS-ldh-nox导入突变型大肠杆菌BL-2中得到产乙偶姻大肠杆菌工程菌BL-3;
所述pET28a-ldh的核苷酸序列如SEQ ID NO.10所示;
所述pET28a-nox的核苷酸序列如SEQ ID NO.11所示;
所述引物LDH-F的核苷酸序列如SEQ ID NO.38所示;
所述引物LDH-R的核苷酸序列如SEQ ID NO.39所示;
所述引物NOX-F的核苷酸序列如SEQ ID NO.40所示;
所述引物NOX-R的核苷酸序列如SEQ ID NO.41所示;
所述引物aldC-F的核苷酸序列如SEQ ID NO.42所示;
所述引物aldC-R的核苷酸序列如SEQ ID NO.43所示;
所述引物alsS-F的核苷酸序列如SEQ ID NO.44所示;
所述引物alsS-R的核苷酸序列如SEQ ID NO.45所示。
4.产乙偶姻的大肠杆菌工程菌在全细胞催化生产乙偶姻的应用,包括如下步骤:
1)将权利要求1或2的产乙偶姻的大肠杆菌工程菌在LB培养基中进行培养,培养至OD600为0.6-0.8,加入终浓度为0.5mM的异丙基β-D-1-硫代吡喃半乳糖苷,18-25℃下诱导12-16h,离心收集菌体;
2)将步骤1)获得的菌体悬于含乳酸的转化液中,使OD600=15-30,所述乳酸的浓度为190.8-295.2mM,在37-40℃,220rpm反应,得到乙偶姻。
5.根据权利要求4所述的应用,其特征在于转化液的组成为10mM的MgCl2,余量为pH 6.0的100mM磷酸盐缓冲液。
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