CN111979206A - 固定化融合酶及用其制备谷胱甘肽的方法 - Google Patents

固定化融合酶及用其制备谷胱甘肽的方法 Download PDF

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CN111979206A
CN111979206A CN201910440344.7A CN201910440344A CN111979206A CN 111979206 A CN111979206 A CN 111979206A CN 201910440344 A CN201910440344 A CN 201910440344A CN 111979206 A CN111979206 A CN 111979206A
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于铁妹
樊卫
谭文静
何遂平
何平
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Abstract

本发明涉及多肽合成领域,特别涉及固定化融合酶及用其制备谷胱甘肽的方法。本发明分别将谷胱甘肽合成酶基因、三磷酸腺苷再生酶基因与几丁质蛋白结构域基因连接、表达制备融合酶,利用几丁质载体能很专一、牢固的结合几丁质蛋白结构域,实现一步纯化固定化谷胱甘肽合成融合酶、三磷酸腺苷再生融合酶,该工序简单,固定化酶空间密度高。本发明制备的固定化融合酶,酶活性高可实现连续化生成谷胱甘肽,本发明采用固定化融合酶分批、连续的工艺路线,可生成高达31g/L的谷胱甘肽,目标产物浓度高,产物溶液中没有酶的残留、极大的简化了后期纯化工艺。

Description

固定化融合酶及用其制备谷胱甘肽的方法
技术领域
本发明涉及多肽合成领域,特别涉及固定化融合酶及用其制备谷胱甘肽的方法。
背景技术
谷胱甘肽(GSH)是由L-谷氨酸、L-半胱氨酸、甘氨酸连接而成的一种天然三肽化合物,其分子式为C10H17N3O6S,分子量为307.3。GSH广泛存在于动、植物中,在生物体内起着重要的抗氧化功能。由于GSH里活泼的巯基-SH易被氧化脱氢,因而可以清除体内的自由基;与此同时,GSH还能提高人体免疫力、维护健康、抗衰老、以及让老人细胞迟缓化上都有功效;再加上广谱解毒作用,因此,谷胱甘肽不仅被应用于安全的药物添加辅料,而且被广泛用做功能性食品的基料,以及在延缓衰老、增强免疫力、抗肿瘤等功能性食品中。
谷胱甘肽工业制备包含有天然产物分离法、化学合成法、微生物发酵法以及酶催化制备法。由于谷胱甘肽广泛存在于各种动植物体内,其最初的制备则主要是从大量的植物提取液里进行分离纯化,由于该方法分离程序繁琐、产率低,后来很快被更有效的化学合成法替代。化学法虽然成功的实现了谷胱甘肽的大量制备,但是其固有的两个劣势限制了其普遍应用:一是制备过程中氨基酸官能团选择性保护、脱保护程序大大的提高了其制备成本,二是由于化学合成法制备固有的不安全性严重的制约了其产品在食品、药品添加剂等领域的应用。因此,谷胱甘肽发酵法以及酶合成法成为其工业生产的主要选择。酶法的催化效率高、生产周期短、纯化方法更加节能环保、生产成本更低,因此酶法生产谷胱甘肽具有广阔发展前景。自然界中存在不少的谷胱甘肽合成酶,它通过利用三磷酸腺苷(ATP)活化进而将L-谷氨酸、L-半胱氨酸以及甘氨酸依次通过酰胺键合成谷胱甘肽。该合成酶一部分以GshA(EC 6.3.2.2)和GshB(EC 6.3.2.3)两种单功能酶形式存在,而另外一部分则以双功能酶GshAB(EC 6.3.2.2&EC 6.3.2.3)的形式存在;此外,通过多聚磷酸激酶PPK(Polyphosphate kinase,EC 2.7.4.1)、腺苷酸激酶Adk(Adenylate kinase,EC 2.7.4.3)、磷酸转移酶Pap(AMP phosphotransferase,EC 2.7.4.-)类三磷酸腺苷再生酶系利用多聚磷酸盐类实现三磷酸腺苷的循环再生。从而在合成酶 GshAB制备谷胱甘肽过程中大大减少三磷酸腺苷的使用量,进一步降低原料成本;
一方面酶法实现谷胱甘肽高效生产需要制备高纯度、高活力的酶,而规模化酶纯化工艺复杂,制备成本高;另一方面由于游离酶在水溶液中不稳定, 且只能一次性使用,难以回收。因此酶实际工业应用更倾向于采用固定化酶形式进行转化,因其具备以下几点明显的优势。(1)可以在较长时间内进行反复分批反应和装柱连续反应;(2)固定化酶极易与底物、产物分开;(3)酶经过固定化处理一般稳定性有较大提高,对热、pH等的稳定性提高;(4)对抑制剂的敏感性降低,产物溶液中没有酶的残留,简化了提纯工艺;(5)酶反应过程能够严格控制酶的使用效率,成本降低。
现有技术大多采用游离的、未纯化的谷胱甘肽合成酶、ATP再生酶生产谷胱甘肽,液体酶一次性使用,无法实现其循环利用,这大大增加了酶的生产成本;与此同时,混合酶液中杂酶导致不少副产物的发生,再加上酶液自身与产品混合,因而不利于最终产品纯化;前期混合酶液制备过程中每批次的波动将影响最终产品的品质稳定性。部分技术也涉及固定化酶,常用的酶固定化的方法大多采用酶纯化后获得游离酶,再用吸附、包埋、共价结合等方式固定,其工艺繁琐、酶活回收率低。
因此,提供一种固定化酶及其制备方法具有重要的现实意义。
发明内容
有鉴于此,本发明提供一种固定化融合酶及用其制备谷胱甘肽的方法。本发明采用固定化融合酶分批、连续的工艺路线,可生成高达31g/L的谷胱甘肽,目标产物浓度高,产物溶液中没有酶的残留、极大的简化了后期纯化工艺。
为了实现上述发明目的,本发明提供以下技术方案:
本发明提供了融合酶的组合物,包括:
(1)融合有谷胱甘肽合成酶与几丁质蛋白结合域的第一融合蛋白;和 (2)融合有包括三磷酸腺苷再生酶与几丁质蛋白结合域的第二融合蛋白。
在本发明的一些具体实施方案中,所述谷胱甘肽合成酶包括单功能合成酶GshA(EC 6.3.2.2)、GshB(EC 6.3.2.3)、双功能合成酶GshAB(EC 6.3.2.2&EC 6.3.2.3)中的一种或两者以上的酶。
在本发明的一些具体实施方案中,所述三磷酸腺苷再生酶包括多聚磷酸激酶(PPK,EC 2.7.4.1)、腺苷酸激酶(Adk,EC 2.7.4.3)、磷酸转移酶(Pap,EC 2.7.4.-)中的一种或两者以上的酶。
在本发明的一些具体实施方案中,几丁质蛋白结合域包括PF00942酶家族的成员,具体为Clostridium cellulovorans P38058,Clostridium Thermocellum 4B9F,Paenibacillus amylolyticus A0A1R1E3J9,Hungateiclostridium thermocellumEEU00265,Lachnoclostridium phytofermentans A9KJ82, Anaerocolumna jejuensisA0A1M6JI59,Lachnoclostridium phytofermentans A9KT91,Paenibacillus spA0A1H2W1K8,Paenibacillus odorifer A0A089MPB0,Paenibacillus kribbensisA0A222WU32或Hungateiclostridium saccincola A0A2S8R9S3。
在本发明的一些具体实施方案中,,所述第一融合蛋白:
(I)、具有如SEQ ID NO:1、2、3或4所示的氨基酸序列;或
(II)、如(I)所述氨基酸序列经取代、缺失或添加一个或多个氨基酸获得的氨基酸序列,且与(I)所示的氨基酸序列功能相同或相似的氨基酸序列;或
(III)、与(I)或(II)所述序列至少有80%同源性的氨基酸序列。
在本发明的一些具体实施方案中,所述第二融合蛋白:
(IV)、具有如SEQ ID NO:5、6、7或8所示的氨基酸序列;或
(V)、如(IV)所述氨基酸序列经取代、缺失或添加一个或多个氨基酸获得的氨基酸序列,且与(IV)所示的氨基酸序列功能相同或相似的氨基酸序列;或
(VI)、与(IV)或(V)所述序列至少有80%同源性的氨基酸序列。
在本发明的一些具体实施方案中,所述多个为2个、3个、4个、5个、 6个、7个、8个、9个、10个、11个、12个、13个、14个、15个或16个、17个、18个、19个、20个、21个、22个、23个、24个、25个、26个、27 个、28个、29个、30个、31个或32个。
在上述研究的基础上,本发明还提供了表达所述的组合物中所述第一融合蛋白与所述第二融合蛋白的基因。
本发明还提供了含有所述基因的载体。
此外,本发明还提供了固定化融合酶的制备方法,以几丁质载体为固定化载体,纯化、固定所述组合物中所述第一融合蛋白和/或所述第二融合蛋白,获得固定化第一融合蛋白和/或固定化第二融合蛋白,所述固定化第一融合蛋白和/或固定化第二融合蛋白为固定化融合酶;
所述几丁质载体选自:几丁质树脂、几丁质磁性珠、甲壳素高聚体或甲壳素凝胶。几丁质蛋白结构域(Chitin Binding Domain,ChBD)的分子量小、结构稳定,该结构域可通过疏水作用与几丁质结合,专一性强、稳定性好、对目标蛋白影响小、酶活性高,由于ChBD结构域与几丁质载体结合紧密,因而可以方便的实现粗酶液的一次性纯化以及固定化。
本发明还提供了所述的制备方法制得的固定化融合酶。本发明提供的固定化融合酶可以为所述第一融合蛋白和所述第二融合蛋白混合后经固定化制得也可以分别制得固定化第一融合蛋白、固定化第二融合蛋白之后,包括所述固定化第一融合蛋白、固定化第二融合蛋白或所述第一融合蛋白和所述第二融合蛋白混合后经固定化制得的融合蛋白的组合物。
在上述研究的基础上,本发明还提供了所述的固定化融合酶在制备谷胱甘肽中的应用。
此外,本发明还提供了固定化融合酶的组合物,包括所述的固定化融合酶,所述固定化第一融合蛋白与所述固定化第二融合蛋白的质量比为1: (0.05~20)。
在本发明的一些具体实施方案中,固定化融合酶的组合物中所述固定化第一融合蛋白与所述固定化第二融合蛋白的质量比为1:1、1:0.3、1:20、 20:1。
本发明还提供了谷胱甘肽的制备方法,取谷胱甘肽的合成原料经所述的固定化合成酶或所述的固定化融合酶的组合物催化,制得谷胱甘肽。
本发明采用一种新的方式一步完成酶纯化与固定化。在常用的酶纯化方式中,为了使目标蛋白易于纯化,常用的方法是融合表达亲和标签。与其它亲和标签相比,几丁质蛋白结构域(Chitin Binding Domain,ChBD)的分子量小、结构稳定,该结构域可通过疏水作用与几丁质结合,专一性强、稳定性好、对目标蛋白影响小、酶活性高,由于ChBD结构域与几丁质载体结合紧密,因而可以方便的实现粗酶液的一次性纯化以及固定化。本发明依据谷胱甘肽合成酶、三磷酸腺苷再生酶系的结构特点,将目标酶基因与几丁质结合域基因融合表达制备融合酶,通过几丁质载体一次性纯化固定,获得固定化融合酶,简化了酶纯化固定化工艺流程,极大的提高了酶的纯度,固定化单位活性密度高,催化效率高,同时固定化后对产物抑制性敏感度降低,可获得更高产物浓度的同时提高底物转化率,易于后期纯化。本发明制备的固定化融合酶,酶活性高可实现连续化生成谷胱甘肽,本发明采用固定化融合酶分批、连续的工艺路线,可生成高达31g/L的谷胱甘肽,目标产物浓度高,产物溶液中没有酶的残留、极大的简化了后期纯化工艺。本发明通过有效的整合了以上各方面的优势来生产谷胱甘肽,绿色指数高,易于规模化生产。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1示谷胱甘肽的合成路线及反应原理;
图2示实施例1中GshAB-ChBD(91.5KDa)与PPK-ChBD 52.8Kda的电泳结果;
图3示实施例1中纯化后谷胱甘肽(GSH)在600M Varian,D2O溶液核磁1H-NMR谱图;
图4示实施例1中纯化后谷胱甘肽(GSH)在600M Varian,D2O溶液核磁13C-NMR谱图;
图5示实施例1中实验组2纯化后谷胱甘肽纯品的高效液相色谱图;
图6示实施例1中对照组纯化后谷胱甘肽纯品的高效液相色谱图。
具体实施方式
本发明公开了一种固定化融合酶及用其制备谷胱甘肽的方法,本领域技术人员可以借鉴本文内容,适当改进工艺参数实现。特别需要指出的是,所有类似的替换和改动对本领域技术人员来说是显而易见的,它们都被视为包括在本发明。本发明的方法及应用已经通过较佳实施例进行了描述,相关人员明显能在不脱离本发明内容、精神和范围内对本文所述的方法和应用进行改动或适当变更与组合,来实现和应用本发明技术。
本发明包括以下步骤:
1、构建谷胱甘肽合成酶与几丁质蛋白结合域(Chitin Binding Domain,ChBD) 融合蛋白表达基因,表达融合蛋白基因制备谷胱甘肽合成融合酶。
谷胱甘肽合成酶包括单功能合成酶GshA(EC 6.3.2.2)、GshB(EC 6.3.2.3),双功能合成酶GshAB(EC 6.3.2.2&EC 6.3.2.3)中的一种或一种以上。
几丁质蛋白结合域包括(PF00942酶家族里的成员,譬如:Clostridiumcellulovorans P38058,Clostridium Thermocellum 4B9F,Paenibacillus amylolyticusA0A1R1E3J9,Hungateiclostridium thermocellum EEU00265,Lachnoclostridiumphytofermentans A9KJ82,Anaerocolumna jejuensis A0A1M6JI59, Lachnoclostridiumphytofermentans A9KT91,Paenibacillus sp A0A1H2W1K8, Paenibacillus odoriferA0A089MPB0,Paenibacillus kribbensis A0A222WU32, Hungateiclostridiumsaccincola A0A2S8R9S3等)。
2、构建三磷酸腺苷再生酶与几丁质蛋白结合域(Chitin Binding Domain, ChBD)融合蛋白表达基因,表达融合蛋白基因制备三磷酸腺苷再生融合酶。
三磷酸腺苷再生酶包括多聚磷酸激酶(PPK,EC 2.7.4.1)、腺苷酸激酶(Adk, EC2.7.4.3)、磷酸转移酶(Pap,EC 2.7.4.-)种的一种或多种。
几丁质蛋白结合域ChBD包括PF00942酶家族里的成员,例如:Clostridiumcellulovorans P38058,Clostridium Thermocellum 4B9F,Paenibacillus amylolyticusA0A1R1E3J9,Hungateiclostridium thermocellum EEU00265,Lachnoclostridiumphytofermentans A9KJ82,Anaerocolumna jejuensis A0A1M6JI59, Lachnoclostridiumphytofermentans A9KT91,Paenibacillus sp A0A1H2W1K8, Paenibacillus odoriferA0A089MPB0,Paenibacillus kribbensis A0A222WU32, Hungateiclostridiumsaccincola A0A2S8R9S3等)。
3、利用能与几丁质结合域特异结合的几丁质载体纯化及固定谷胱甘肽合成融合酶、三磷酸腺苷再生融合酶,制备固定化谷胱甘肽合成融合酶及固定化三磷酸腺苷再生融合酶。
几丁质载体包括选自:几丁质树脂、几丁质磁性珠、甲壳素高聚体、甲壳素凝胶等
4、利用固定化谷胱甘肽合成融合酶及固定化三磷酸腺苷再生融合酶生产制备谷胱甘肽,分离纯化谷胱甘肽。
固定化谷胱甘肽合成融合酶与固定化三磷酸腺苷再生融合酶之间质量比为1:0.05~1:20。
反应过程可以在反应罐中分批反应,也可以采用反应柱连续反应,连续反应可以是多根酶反应柱串联也可以是单根酶反应柱多次循环。
本发明分别将谷胱甘肽合成酶基因、三磷酸腺苷融合酶基因与几丁质蛋白结构域基因连接、表达制备融合酶,利用几丁质载体能很专一、牢固的结合几丁质蛋白结构域,实验一步纯化固定化谷胱甘肽合成融合酶、三磷酸腺苷再生融合酶,该工序简单,固定化酶空间密度高。本发明制备的固定化融合酶,酶活性高可实现连续化生成谷胱甘肽,本发明采用固定化融合酶分批、连续的工艺路线,可生成高达31g/L的谷胱甘肽,目标产物浓度高,产物溶液中没有酶的残留、极大的简化了后期纯化工艺。
表1
Figure RE-GDA0002130379840000071
Figure RE-GDA0002130379840000081
Figure RE-GDA0002130379840000091
本发明提供的固定化融合酶及用其制备谷胱甘肽的方法中所用原料及试剂均可由市场购得。
下面结合实施例,进一步阐述本发明:
实施例1
构建谷胱甘肽双功能酶(GshAB)EC 6.3.2.2与几丁质蛋白结合域(ChitinBinding Domain,Clostridium cellulovorans来源的P38058)融合蛋白表达基因 (GshAB-P38058)。GshAB-P38058蛋白序列见表1,基因合成后通过NdeI与XhoI(NEB公司)酶切亚克隆到pColdIII(日本TaKaRa公司)质粒上。
构建多聚磷酸激酶(PPK,EC 2.7.4.1)与几丁质蛋白结合域(Chitin BindingDomain,Paenibacillus amylolyticus来源的A0A1R1E3J9), PPK-A0A1R1E3J9蛋白序列见表1,基因合成后通过NdeI与XhoI(NEB公司) 酶切亚克隆到pColdIII(日本TaKaRa公司)质粒上。
构建腺苷酸激酶(Adk,EC 2.7.4.3)与几丁质蛋白结合域(Chitin BindingDomain,Paenibacillus odorifer来源的A0A089MPB0),Adk-A0A089MPB0 蛋白序列见表1,基因合成后通过NdeI与XhoI(NEB公司)酶切亚克隆到 pColdIII(日本TaKaRa公司)质粒上。
上述构建好的质粒分别转入E.coli JM109菌株(上海唯地生物),确认正确的菌落培养到含100uM氨苄青霉素的LB培养液中,LB培养基构成为:1%胰蛋白胨、0.5%酵母粉,1%NaCl,1%磷酸氢二钾、1%磷酸二氢钾以及5%的甘油;当细胞增长至对数中后期迅速降温至15°,加入0.2mM异丙基-β-D- 硫代吡喃半乳糖苷(IPTG)在15℃诱导蛋白表达20小时,离心收集湿菌体 (GshAB-P38058、PPK-A0A1R1E3J9、Adk-A0A089MPB0)。
称取100g GshAB-P38058湿细胞,用1000ml溶液(含20mM Tris pH7.5) 重悬后经高压破碎得粗酶液,粗酶液活力为120U/ml,SDS-Page电泳见图2。 (将1分钟生成1μmol产物所需要的酶量定义为1个活性单位U)。在1000ml 粗酶液中加入25g几丁质珠树脂(NEB公司)在4℃轻微搅拌2小时进行融合酶的纯化、固定,最终过滤、洗涤、4℃保存待用,即得固定化GshAB-P38058 融合酶,活力为4416U/g(酶活回收92%)。
称取100g PPK-A0A1R1E3J9湿细胞,用1000ml溶液(20mM Tris pH7.5) 重悬后经高压破碎得粗酶液,粗酶液活力为180U/ml,SDS-Page电泳见图2。 (将1分钟生成1μmol产物所需要的酶量定义为1个活性单位U)。在1000ml 粗酶液中加入30g几丁质珠树脂(NEB公司)在4℃轻微搅拌2小时进行融合酶的纯化、固定,最终过滤、洗涤、4℃保存待用,即得固定化PPK-A0A1R1E3J9融合酶,活力为5400U/g(酶活回收90%)
称取100g Adk-A0A089MPB0湿细胞,用1000ml溶液(20mM Tris pH 7.5) 重悬后经高压破碎得粗酶液,粗酶液活力为450U/ml。(将1分钟生成1μmol 产物所需要的酶量定义为1个活性单位U)。在1000ml粗酶液中加入55g几丁质珠树脂(NEB公司)在4℃轻微搅拌2小时进行融合酶的纯化、固定,最终过滤、洗涤、4℃保存待用,即得固定化Adk-A0A089MPB0融合酶,活力为6954U/g(酶活回收85%)
实验组1:在100L反应罐中配制135mM L-谷氨酸,135mM L-半胱氨酸,135mM 甘氨酸,20mM MgCl2,10mM ATP,270mM 多聚磷酸(以单磷酸计),调节pH至7.5,反应液体积为80L,加入上述固定化GshAB-P38058 融合酶200g,固定化PPK-A0A1R1E3J9融合酶150g,固定化 Adk-A0A089MPB0融合酶49.8g,37℃搅拌下反应3h,生成谷胱甘肽92mM (28g/L),氨基酸底物转化率达68%,反应液经筛网与固定化酶分离后无需除蛋白、脱色等处理,直接经阴阳离子交换吸附洗脱,浓缩后经乙醇结晶干燥获得谷胱甘肽纯品1.5kg,回收率70%,谷胱甘肽产品纯度99.3%,谷胱甘肽产品核磁谱图见图3、图4。反应后的固定化GshAB-P38058融合酶酶活为 4327U/g,固定化PPK-A0A1R1E3J9融合酶酶活为5346U/g,固定化 Adk-A0A089MPB0融合酶酶活为6884U/g。经30批次反应后,固定化 GshAB-P38058融合酶酶活为3974U/g,固定化PPK-A0A1R1E3J9融合酶酶活为4860U/g,固定化Adk-A0A089MPB0融合酶酶活为6258U/g。
实验组2:连续催化反应
将上述固定化GshAB-P38058融合酶、固定化PPK-A0A1R1E3J9融合酶、固定化Adk-A0A089MPB0融合酶按质量比4:3:1填充到玻璃柱中(柱径10 厘米,柱长100厘米),即得固定化酶柱,然后将原料预混液(135mM L-谷氨酸,135mM L-半胱氨酸,135mM 甘氨酸,20mMMgCl2,10mM ATP,270mM 多聚磷酸(以单磷酸计),调节pH至7.5)预热至37℃,以流速2L/min通入柱子,收集流出液,流出液含谷胱甘肽101mM(31g/L),底物转化率达75%,反应3h收集反应流出液360L,流出液直接经离子交换树脂吸附洗脱,浓缩后经乙醇结晶干燥获得谷胱甘肽纯品8.03kg,回收率72%,纯化后的谷胱甘肽产品经液相色谱分析纯度99.2%,如图5。固定化酶柱连续反应30天,固定化GshAB-P38058融合酶剩余80%,酶活为3532U/g,固定化PPK-A0A1R1E3J9融合酶剩余85%,酶活为4590U/g、固定化 Adk-A0A089MPB0融合酶剩余酶活88%,酶活为6119U/g。
对照组:
在100L反应罐中配制135mM L-谷氨酸,135mM L-半胱氨酸,135mM 甘氨酸,20mMMgCl2,10mM ATP,270mM多聚磷酸(以单磷酸计),调节pH至7.5,加入上述GshAB-P38058粗酶液7.36L,PPK-A0A1R1E3J9粗酶液4.5L,Adk-A0A089MPB0粗酶液0.78L,定容至80L。37℃搅拌下反应 3h,生成谷胱甘肽60mM(18.4g/L),氨基酸底物转化率44%。反应后酶液无法重复利用。反应液经调酸除蛋白、超滤、脱色过滤等处理后,经离子交换树脂吸附洗脱,浓缩后经乙醇结晶干燥获得谷胱甘肽纯品0.85kg,回收率 58%,纯化后谷胱甘肽产品经液相色谱分析如图6,纯度98.3%。
由实验组1、实验组2与对照组比较可以看出,经本发明制备的固定化酶催化反应与游离粗酶反应比较,固定化酶对产品的敏感性降低可耐受更高浓度的产物,生成的谷胱甘肽浓度显著提高(28g/L,P<0.05),底物氨基酸的转化率更高(80%,P<0.05),底物氨基酸转化率高,固定化酶易与反应液分离,纯化工艺更简单,产品纯度更高99.3%(P<0.05)。实验组2的连续酶催化反应,可实现连续化生产谷胱甘肽,生成的谷胱甘肽浓度可达31g/L(与对照组相比,P<0.05),底物氨基酸的转化率可达75%(与对照组相比, P<0.05)。
实施例2
构建谷胱甘肽双功能酶(GshAB)EC 6.3.2.2与几丁质蛋白结合域(ChitinBinding Domain,Clostridium Thermocellum来源的4B9F)融合蛋白表达基因 (GshAB-4B9F)。GshAB-4B9F蛋白序列见附表1,基因合成后通过NdeI与XhoI (NEB公司)酶切亚克隆到pColdIII(日本TaKaRa公司)质粒上。
构建多聚磷酸激酶(PPK,EC 2.7.4.1)与几丁质蛋白结合域(Chitin BindingDomain,Paenibacillus amylolyticus来源的A0A1R1E3J9), PPK-A0A1R1E3J9蛋白序列见表1,基因合成后通过NdeI与XhoI(NEB公司) 酶切亚克隆到pColdIII(日本TaKaRa公司)质粒上。
将上述质粒按实施例1的方法经诱导表达后制备GshAB-4B9F湿菌体、 PPK-A0A1R1E3J9湿菌体。
称取100g GshAB-4B9F湿细胞,用1000ml溶液(含20mM Tris pH7.5) 重悬后经高压破碎得粗酶液,粗酶液活力为110U/ml。在1000ml粗酶液中加入50g几丁质磁性珠在4℃轻微搅拌2小时进行融合酶的纯化、固定,最终过滤、洗涤、4℃保存待用,即得固定化GshAB-4B9F融合酶,活力为1804U/g (酶活回收82%)。
称取100g PPK-A0A1R1E3J9湿细胞,用1000ml溶液(20mM Tris pH 7.5) 重悬后经高压破碎得粗酶液,粗酶液活力为150U/ml。在1000ml粗酶液中加入45g几丁质磁性珠在4℃轻微搅拌2小时进行融合酶的纯化、固定,最终过滤、洗涤、4℃保存待用,即得固定化PPK-A0A1R1E3J9融合酶,活力为 2833U/g(酶活回收85%)。
将上述固定化GshAB-4B9F融合酶与固定化PPK-A0A1R1E3J9融合酶按重量1:0.5填充到玻璃柱中(柱径10厘米,柱长100厘米),即得固定化酶柱,然后将原料预混液(135mM L-谷氨酸,135mM L-半胱氨酸,135mM甘氨酸, 20mM MgCl2,10mM ATP,270mM 多聚磷酸(以单磷酸计),调节pH至 7.5)预热至37℃,以流速0.8L/min通入柱子,收集流出液,流出液含谷胱甘肽98mM(30g/L),反应8h收集反应流出液384L,反应流出液经离子交换树脂吸附洗脱,浓缩后乙醇水溶液结晶干燥获得谷胱甘肽纯品5.7kg,回收率 62%,产品纯度98.8%。固定化酶柱连续反应30天,固定化GshAB-4B9F融合酶活性剩余80%,酶活为1443U/g,固定化PPK-A0A1R1E3J9融合酶活性剩余90%,酶活为2549U/g。
实施例3
构建谷胱甘肽单功能合成酶GshA(EC 6.3.2.2)与几丁质蛋白结合域(来源的A0A173MZQ9)融合蛋白表达基因(GshA-A0A173MZQ9)。 GshA-A0A173MZQ9蛋白序列见附表1,基因合成后通过NdeI与XhoI(NEB 公司)酶切亚克隆到pColdIII(日本TaKaRa公司)质粒上。
构建谷胱甘肽单功能合成酶GshB(EC 6.3.2.3)与几丁质蛋白结合域(来源的A0A173MZQ9)融合蛋白表达基因(GshB-A0A173MZQ9)。 GshB-A0A173MZQ9蛋白序列见附表1,基因合成后通过NdeI与XhoI(NEB 公司)酶切亚克隆到pColdIII(日本TaKaRa公司)质粒上。
构建多聚磷酸激酶(PPK,EC 2.7.4.1)与几丁质蛋白结合域(Chitin BindingDomain,Clostridium Thermocellum来源的4B9F),PPK-4B9F蛋白序列见附表1,基因合成后通过NdeI与XhoI(NEB公司)酶切亚克隆到pColdIII(日本 TaKaRa公司)质粒上。
构建磷酸转移酶(Pap,EC 2.7.4.-)与几丁质蛋白结合域(Clostridiumcellulovorans来源的P38058),Pap-P38058蛋白序列见表1。基因合成后通过 NdeI与XhoI(NEB公司)酶切亚克隆到pColdIII(日本TaKaRa公司)质粒上。
将上述质粒按实施例1的方法制备GshA-A0A173MZQ9粗酶液(酶活为 80U/ml)、GshB-A0A173MZQ9粗酶液(酶活为153U/ml)、PPK-4B9F粗酶液 (酶活为130U/ml)、Pap-P38058粗酶液(酶活为125U/ml)。
在1000ml GshA-A0A173MZQ9粗酶液中加入30g几丁质珠树脂(NEB公司)在4℃轻微搅拌2小时进行融合酶的纯化、固定,最终过滤、洗涤、4℃保存待用,即得固定化GshA-A0A173MZQ9融合酶,活力为2131U/g(酶活回收80%)。
在1000ml GshB-A0A173MZQ9粗酶液中加入30g几丁质珠树脂(NEB公司)在4℃轻微搅拌2小时进行融合酶的纯化、固定,最终过滤、洗涤、4℃保存待用,即得固定化GshB-A0A173MZQ9融合酶,活力为4335U/g(酶活回收85%)。
在1000ml PPK-4B9F粗酶液中加入40g几丁质磁性珠在4℃轻微搅拌2 小时进行融合酶的纯化、固定,最终过滤、洗涤、4℃保存待用,即得固定化 PPK-4B9F融合酶,活力为2860U/g(酶活回收88%)。
在1000ml Pap-P38058粗酶液中加入30g几丁质珠树脂(NEB公司)在4℃轻微搅拌2小时进行融合酶的纯化、固定,最终过滤、洗涤、4℃保存待用,即得固定化Pap-P38058融合酶,活力为3750U/g(酶活回收90%)。
将上述固定化GshA-A0A173MZQ9融合酶、固定化PPK-4B9F融合酶、固定化Pap-P38058融合酶按重量1:0.2:0.1填充到玻璃柱中(柱径10厘米,柱长100厘米),即得固定化酶A柱。将上述固定化GshB-A0A173MZQ9融合酶、固定化PPK-4B9F融合酶、固定化Pap-P38058融合酶按重量1:0.4: 0.2填充到玻璃柱中(柱径10厘米,柱长100厘米),即得固定化酶B柱。A 柱与B柱串联,将原料预混液(135mM L-谷氨酸,135mM L-半胱氨酸,135 mM甘氨酸,20mMMgCl2,10mM ATP,270mM多聚磷酸(以单磷酸计),调节pH至7.5)预热至38℃,以流速0.5L/min依此通入A、B柱子,收集B 柱子流出液,流出液含谷胱甘肽97mM(29.8g/L),反应8h收集反应流出液 240L,反应流出液经离子交换树脂吸附洗脱,浓缩后乙醇水溶液结晶干燥获得谷胱甘肽纯品5.0kg。固定化酶柱连续反应30天,固定化 GshA-A0A173MZQ9融合酶活性剩余75%,酶活为1599U/g,固定化 GshB-A0A173MZQ9融合酶活性剩余85%,酶活为3684U/g固定化PPK-4B9F 融合酶活性剩余90%,酶活为2574U/g、固定化Pap-P38058融合酶活性剩余82%,酶活为3075U/g。
实施例4
构建谷胱甘肽双功能酶(GshAB)EC 6.3.2.2与几丁质蛋白结合域(ChitinBinding Domain,Paenibacillus amylolyticus来源的A0A1R1E3J9)融合蛋白表达基因(GshAB-A0A1R1E3J9)。GshAB-A0A1R1E3J9蛋白序列见表1,基因合成后通过NdeI与XhoI(NEB公司)酶切亚克隆到pColdIII(日本TaKaRa公司)质粒上。将构建好的质粒按实施例1的方法制备固定化 GshAB-A0A1R1E3J9融合酶,活力为5112U/g。
在100L反应罐中配制135mM L-谷氨酸,135mM L-半胱氨酸,135mM 甘氨酸,20mMMgCl2,10mM ATP,270mM多聚磷酸(以单磷酸计),调节pH至7.5,反应液体积为80L,加入上述制备的固定化GshAB-A0A1R1E3J9 融合酶20g,实施例2制备的固定化PPK-A0A1R1E3J9融合酶200g,实施例1制备的固定化Adk-A0A089MPB0融合酶200g,37℃搅拌下反应3h,生成谷胱甘肽80mM(24.5g/L),反应液经筛网与固定化酶分离后无需除蛋白、脱色等处理,直接经阴阳离子交换吸附洗脱,浓缩后经乙醇结晶干燥获得谷胱甘肽纯品1.3kg,回收率70%。
实施例5
构建谷胱甘肽双功能酶(GshAB)EC 6.3.2.2与几丁质蛋白结合域(ChitinBinding Domain,Hungateiclostridium thermocellum来源的EEU00265)融合蛋白表达基因(GshAB-EEU00265)。GshAB-EEU00265蛋白序列见表1,基因合成后通过NdeI与XhoI(NEB公司)酶切亚克隆到pColdIII(日本TaKaRa公司)质粒上。将构建好的质粒按实施例1的方法制备固定化GshAB-EEU00265 融合酶,活力为2985/g。
在100L反应罐中配制135mM L-谷氨酸,135mM L-半胱氨酸,135mM 甘氨酸,20mMMgCl2,10mM ATP,270mM多聚磷酸(以单磷酸计),调节pH至7.5,反应液体积为80L,加入上述制备的固定化GshAB-EEU00265 融合酶300g,实施例3中制备的固定化PPK-4B9F融合酶15g,37℃搅拌下反应3h,生成谷胱甘肽66mM(20.2g/L),反应液经筛网与固定化酶分离后无需除蛋白、脱色等处理,直接经阴阳离子交换吸附洗脱,浓缩后经乙醇结晶干燥获得谷胱甘肽纯品1.01kg,回收率63%。
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。
序列表
<110> 深圳瑞德林生物技术有限公司
<120> 固定化融合酶及用其制备谷胱甘肽的方法
<130> S18P2857
<160> 10
<170> SIPOSequenceListing 1.0
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<400> 1
Met Ile Ile Asp Arg Leu Leu Gln Arg Ser His Ser His Leu Pro Ile
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Leu Gln Ala Thr Phe Gly Leu Glu Arg Glu Ser Leu Arg Ile His Gln
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Pro Thr Gln Arg Val Ala Gln Thr Pro His Pro Lys Thr Leu Gly Ser
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Arg Asn Tyr His Pro Tyr Ile Gln Thr Asp Tyr Ser Glu Pro Gln Leu
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Glu Leu Ile Thr Pro Ile Ala Lys Asp Ser Gln Glu Ala Ile Arg Phe
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Leu Lys Ala Ile Ser Asp Val Ala Gly Arg Ser Ile Asn His Asp Glu
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Tyr Leu Trp Pro Leu Ser Met Pro Pro Lys Val Arg Glu Glu Asp Ile
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Gln Ile Ala Gln Leu Glu Asp Ala Phe Glu Tyr Asp Tyr Arg Lys Tyr
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Leu Glu Lys Thr Tyr Gly Lys Leu Ile Gln Ser Ile Ser Gly Ile His
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Tyr Asn Leu Gly Leu Gly Gln Glu Leu Leu Thr Ser Leu Phe Glu Leu
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Ser Gln Ala Asp Asn Ala Ile Asp Phe Gln Asn Gln Leu Tyr Met Lys
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Leu Ser Gln Asn Phe Leu Arg Tyr Arg Trp Leu Leu Thr Tyr Leu Tyr
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Gly Ala Ser Pro Val Ala Glu Glu Asp Phe Leu Asp Gln Lys Leu Asn
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Asn Pro Val Arg Ser Leu Arg Asn Ser His Leu Gly Tyr Val Asn His
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Lys Asp Ile Arg Ile Ser Tyr Thr Ser Leu Lys Asp Tyr Val Asn Asp
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Leu Glu Asn Ala Val Lys Ser Gly Gln Leu Ile Ala Glu Lys Glu Phe
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Phe Ser Pro Ile Gly Ile Thr Gln Glu Thr Val Asp Thr Val His Leu
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Phe Leu Leu Ala Leu Leu Trp Ile Asp Ser Ser Ser His Ile Asp Gln
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Ala Met Gln Ser Val Ile Gln His Phe Asn Leu Ser Pro Tyr Tyr Gln
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Val Ala Gly Gln Leu Leu Glu Met Ile Glu Gly Leu Ser Leu Glu Thr
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Glu Gln Asp Gln Phe Leu Lys Leu Trp His Asn Ser His Ile Glu Tyr
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Ser Ile Thr Pro Arg Ile Leu Ala Lys Leu Phe Pro Glu Leu Ser Ser
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Val Glu Phe Tyr Asn Ser Asn Lys Ser Ala Gln Thr Asn Ser Ile Thr
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Pro Ile Ile Lys Ile Thr Asn Thr Ser Asp Ser Asp Leu Asn Leu Asn
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Thr Phe Trp Cys Asp His Ala Gly Ala Leu Leu Gly Asn Ser Tyr Val
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Asp Asn Thr Ser Lys Val Thr Ala Asn Phe Val Lys Glu Thr Ala Ser
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Pro Thr Ser Thr Tyr Asp Thr Tyr Val Glu Phe Gly Phe Ala Ser Gly
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Arg Ala Thr Leu Lys Lys Gly Gln Phe Ile Thr Ile Gln Gly Arg Ile
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Thr Lys Ser Asp Trp Ser Asn Tyr Thr Gln Thr Asn Asp Tyr Ser Phe
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Asp Ala Ser Ser Ser Thr Pro Val Val Asn Pro Lys Val Thr Gly Tyr
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Met Ile Pro Asp Val Ser Gln Ala Leu Ala Trp Leu Glu Lys His Pro
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Gln Ala Leu Lys Gly Ile Gln Arg Gly Leu Glu Arg Glu Thr Leu Arg
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Val Asn Ala Asp Gly Thr Leu Ala Thr Thr Gly His Pro Glu Ala Leu
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Gly Ser Ala Leu Thr His Lys Trp Ile Thr Thr Asp Phe Ala Glu Ala
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Leu Leu Glu Phe Ile Thr Pro Val Asp Gly Asp Ile Glu His Met Leu
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Thr Phe Met Arg Asp Leu His Arg Tyr Thr Ala Arg Asn Met Gly Asp
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Glu Arg Met Trp Pro Leu Ser Met Pro Cys Tyr Ile Ala Glu Gly Gln
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Asp Ile Glu Leu Ala Gln Tyr Gly Thr Ser Asn Thr Gly Arg Phe Lys
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Thr Leu Tyr Arg Glu Gly Leu Lys Asn Arg Tyr Gly Ala Leu Met Gln
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Thr Ile Ser Gly Val His Tyr Asn Phe Ser Leu Pro Met Ala Phe Trp
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Gln Ala Lys Cys Gly Asp Ile Ser Gly Ala Asp Ala Lys Glu Lys Ile
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Ser Ala Gly Tyr Phe Arg Val Ile Arg Asn Tyr Tyr Arg Phe Gly Trp
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Val Ile Pro Tyr Leu Phe Gly Ala Ser Pro Ala Ile Cys Ser Ser Phe
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Tyr Glu Tyr Val Ala Gly Leu Lys Gln Ala Ile Lys Thr Pro Ser Glu
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Glu Tyr Ala Lys Ile Gly Ile Glu Lys Asp Gly Lys Arg Leu Gln Ile
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Asn Ser Asn Val Leu Gln Ile Glu Asn Glu Leu Tyr Ala Pro Ile Arg
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Pro Lys Arg Val Thr Arg Ser Gly Glu Ser Pro Ser Asp Ala Leu Leu
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Glu Leu Ala Cys Thr Arg Val Asn Trp Asn Arg Val Ile Leu Glu Gly
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Arg Lys Pro Gly Leu Thr Leu Gly Ile Gly Cys Glu Thr Ala Gln Phe
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Pro Leu Pro Gln Val Gly Lys Asp Leu Phe Arg Asp Leu Lys Arg Val
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Arg Arg Gln Gln Glu Met Glu Ala Ala Asp Thr Glu Pro Phe Ala Val
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Trp Leu Glu Lys His Ala Ser Ser Gly Leu Val Pro Arg Gly Ser His
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Met Lys Ala Ser Arg Gly Lys Ser Asn Met Lys Lys Asn Lys Lys Ser
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Val Pro Val Leu Ala Ser Ser Ser Leu Ser Ser Pro Thr Ile Gln Met
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Tyr Asn Ser Asn Lys Glu Ile Glu Thr Asn Thr Ile Ser Pro Thr Phe
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Lys Ile Ile Asn Ser Ser Tyr Ser Pro Leu Asp Leu Lys Asp Val Thr
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Val Arg Tyr Tyr Tyr Thr Ser Asp Gly Asn Gln Glu Gln Asn Phe Trp
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Cys Asp His Ala Asp Ala Leu Leu Gly Tyr Asn Tyr Val Asp Asn Thr
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Ser Lys Val Thr Gly Lys Phe Val Lys Phe Pro Asn Gly Ile Gly Asn
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Cys Asp Thr Tyr Leu Glu Ile Gly Phe Thr Asp Asp Ala Ser Ile Leu
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Glu Pro Gly Gln Ser Ile Ser Ile Gln Thr Arg Ile Thr Lys Ala Asp
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Trp Ser Asn Tyr Asn Gln Ser Asn Asp Tyr Ser Phe Asp Pro Ile Asn
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Ser Ser Pro Cys Glu Asn Leu Lys Val Ala Glu Tyr Leu Cys Gly Thr
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Leu Val Trp Gly Thr Pro Tyr
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<213> GshB- A0A173MZQ9
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Lys Lys Asp Ser Ser Phe Ala Met Leu Leu Glu Ala Gln Arg Arg Gly
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Tyr Glu Leu His Tyr Met Glu Met Gly Asp Leu Tyr Leu Ile Asn Gly
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Glu Ala Arg Ala His Thr Arg Thr Leu Asn Val Lys Gln Asn Tyr Glu
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Glu Trp Phe Ser Phe Val Gly Glu Gln Asp Leu Pro Leu Ala Asp Leu
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Asp Val Ile Leu Met Arg Lys Asp Pro Pro Phe Asp Thr Glu Phe Ile
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Tyr Ala Thr Tyr Ile Leu Glu Arg Ala Glu Glu Lys Gly Thr Leu Ile
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Val Asn Lys Pro Gln Ser Leu Arg Asp Cys Asn Glu Lys Leu Phe Thr
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Ala Trp Phe Ser Asp Leu Thr Pro Glu Thr Leu Val Thr Arg Asn Lys
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Ala Gln Leu Lys Ala Phe Trp Glu Lys His Ser Asp Ile Ile Leu Lys
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Pro Leu Asp Gly Met Gly Gly Ala Ser Ile Phe Arg Val Lys Glu Gly
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Asp Pro Asn Leu Gly Val Ile Ala Glu Thr Leu Thr Glu His Gly Thr
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Arg Tyr Cys Met Ala Gln Asn Tyr Leu Pro Ala Ile Lys Asp Gly Asp
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Lys Arg Val Leu Val Val Asp Gly Glu Pro Val Pro Tyr Cys Leu Ala
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Arg Ile Pro Gln Gly Gly Glu Thr Arg Gly Asn Leu Ala Ala Gly Gly
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Arg Gly Glu Pro Arg Pro Leu Thr Glu Ser Asp Trp Lys Ile Ala Arg
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Gln Ile Gly Pro Thr Leu Lys Glu Lys Gly Leu Ile Phe Val Gly Leu
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Asp Ile Ile Gly Asp Arg Leu Thr Glu Ile Asn Val Thr Ser Pro Thr
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Cys Ile Arg Glu Ile Glu Ala Glu Phe Pro Val Ser Ile Thr Gly Met
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Leu Met Asp Ala Ile Glu Ala Arg Leu Gln Gln Gln Ser Ser Gly Leu
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Val Pro Arg Gly Ser His Met Lys Ala Ser Arg Gly Lys Ser Asn Met
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Lys Lys Asn Lys Lys Ser Tyr Leu Ile Val Ala Leu Met Met Leu Leu
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Ser Val Ile Ile Pro Ser Val Pro Val Leu Ala Ser Ser Ser Leu Ser
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Ser Pro Thr Ile Gln Met Tyr Asn Ser Asn Lys Glu Ile Glu Thr Asn
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Thr Ile Ser Pro Thr Phe Lys Ile Ile Asn Ser Ser Tyr Ser Pro Leu
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Asp Leu Lys Asp Val Thr Val Arg Tyr Tyr Tyr Thr Ser Asp Gly Asn
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Asn Tyr Val Asp Asn Thr Ser Lys Val Thr Gly Lys Phe Val Lys Phe
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Pro Asn Gly Ile Gly Asn Cys Asp Thr Tyr Leu Glu Ile Gly Phe Thr
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Asp Asp Ala Ser Ile Leu Glu Pro Gly Gln Ser Ile Ser Ile Gln Thr
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Arg Ile Thr Lys Ala Asp Trp Ser Asn Tyr Asn Gln Ser Asn Asp Tyr
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Ser Phe Asp Pro Ile Asn Ser Ser Pro Cys Glu Asn Leu Lys Val Ala
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Glu Tyr Leu Cys Gly Thr Leu Val Trp Gly Thr Pro Tyr
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<210> 4
<211> 911
<212> PRT
<213> GshAB-4B9F
<400> 4
Met Ile Ile Asp Arg Leu Leu Gln Arg Ser His Ser His Leu Pro Ile
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Leu Gln Ala Thr Phe Gly Leu Glu Arg Glu Ser Leu Arg Ile His Gln
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Pro Thr Gln Arg Val Ala Gln Thr Pro His Pro Lys Thr Leu Gly Ser
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Arg Asn Tyr His Pro Tyr Ile Gln Thr Asp Tyr Ser Glu Pro Gln Leu
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Glu Leu Ile Thr Pro Ile Ala Lys Asp Ser Gln Glu Ala Ile Arg Phe
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Leu Lys Ala Ile Ser Asp Val Ala Gly Arg Ser Ile Asn His Asp Glu
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Tyr Leu Trp Pro Leu Ser Met Pro Pro Lys Val Arg Glu Glu Asp Ile
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Gln Ile Ala Gln Leu Glu Asp Ala Phe Glu Tyr Asp Tyr Arg Lys Tyr
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Leu Glu Lys Thr Tyr Gly Lys Leu Ile Gln Ser Ile Ser Gly Ile His
130 135 140
Tyr Asn Leu Gly Leu Gly Gln Glu Leu Leu Thr Ser Leu Phe Glu Leu
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Ser Gln Ala Asp Asn Ala Ile Asp Phe Gln Asn Gln Leu Tyr Met Lys
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Leu Ser Gln Asn Phe Leu Arg Tyr Arg Trp Leu Leu Thr Tyr Leu Tyr
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Gly Ala Ser Pro Val Ala Glu Glu Asp Phe Leu Asp Gln Lys Leu Asn
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Asn Pro Val Arg Ser Leu Arg Asn Ser His Leu Gly Tyr Val Asn His
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Lys Asp Ile Arg Ile Ser Tyr Thr Ser Leu Lys Asp Tyr Val Asn Asp
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Leu Glu Asn Ala Val Lys Ser Gly Gln Leu Ile Ala Glu Lys Glu Phe
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Tyr Ser Pro Val Arg Leu Arg Gly Ser Lys Ala Cys Arg Asn Tyr Leu
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Glu Lys Gly Ile Thr Tyr Leu Glu Phe Arg Thr Phe Asp Leu Asn Pro
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Phe Ser Pro Ile Gly Ile Thr Gln Glu Thr Val Asp Thr Val His Leu
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Phe Leu Leu Ala Leu Leu Trp Ile Asp Ser Ser Ser His Ile Asp Gln
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Asp Ile Lys Glu Ala Asn Arg Leu Asn Asp Leu Ile Ala Leu Ser His
325 330 335
Pro Leu Glu Lys Leu Pro Asn Gln Ala Pro Val Ser Asp Leu Val Asp
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Ala Met Gln Ser Val Ile Gln His Phe Asn Leu Ser Pro Tyr Tyr Gln
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Asp Leu Leu Glu Ser Val Lys Arg Gln Ile Gln Ser Pro Glu Leu Thr
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Val Ala Gly Gln Leu Leu Glu Met Ile Glu Gly Leu Ser Leu Glu Thr
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Phe Gly Gln Arg Gln Gly Gln Ile Tyr His Asp Tyr Ala Trp Glu Ala
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Pro Tyr Ala Leu Lys Gly Tyr Glu Thr Met Glu Leu Ser Thr Gln Leu
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Leu Leu Phe Asp Val Ile Gln Lys Gly Val Asn Phe Glu Val Leu Asp
435 440 445
Glu Gln Asp Gln Phe Leu Lys Leu Trp His Asn Ser His Ile Glu Tyr
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Val Lys Asn Gly Asn Met Thr Ser Lys Asp Asn Tyr Ile Val Pro Leu
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Ala Met Ala Asn Lys Val Val Thr Lys Lys Ile Leu Asp Glu Lys His
485 490 495
Phe Pro Thr Pro Phe Gly Asp Glu Phe Thr Asp Arg Lys Glu Ala Leu
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Asn Tyr Phe Ser Gln Ile Gln Asp Lys Pro Ile Val Val Lys Pro Lys
515 520 525
Ser Thr Asn Phe Gly Leu Gly Ile Ser Ile Phe Lys Thr Ser Ala Asn
530 535 540
Leu Ala Ser Tyr Glu Lys Ala Ile Asp Ile Ala Phe Thr Glu Asp Ser
545 550 555 560
Ala Ile Leu Val Glu Glu Tyr Ile Glu Gly Thr Glu Tyr Arg Phe Phe
565 570 575
Val Leu Glu Gly Asp Cys Ile Ala Val Leu Leu Arg Val Ala Ala Asn
580 585 590
Val Val Gly Asp Gly Ile His Thr Ile Ser Gln Leu Val Lys Leu Lys
595 600 605
Asn Gln Asn Pro Leu Arg Gly Tyr Asp His Arg Ser Pro Leu Glu Val
610 615 620
Ile Glu Leu Gly Glu Val Glu Gln Leu Met Leu Glu Gln Gln Gly Tyr
625 630 635 640
Thr Val Asn Ser Ile Pro Pro Glu Gly Thr Lys Ile Glu Leu Arg Arg
645 650 655
Asn Ser Asn Ile Ser Thr Gly Gly Asp Ser Ile Asp Val Thr Asn Thr
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Met Asp Pro Thr Tyr Lys Gln Leu Ala Ala Glu Met Ala Glu Ala Met
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Gly Ala Trp Val Cys Gly Val Asp Leu Ile Ile Pro Asn Ala Thr Gln
690 695 700
Ala Tyr Ser Lys Asp Lys Lys Asn Ala Thr Cys Ile Glu Leu Asn Phe
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Asn Pro Leu Met Tyr Met His Thr Tyr Cys Gln Glu Gly Pro Gly Gln
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Ser Ile Thr Pro Arg Ile Leu Ala Lys Leu Phe Pro Glu Leu Ser Ser
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Gly Leu Val Pro Arg Gly Ser His Leu Lys Val Glu Phe Tyr Asn Ser
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Asn Pro Ser Asp Thr Thr Asn Ser Ile Asn Pro Gln Phe Lys Val Thr
770 775 780
Asn Thr Gly Ser Ser Ala Ile Asp Leu Ser Lys Leu Thr Leu Arg Tyr
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Tyr Tyr Thr Val Asp Gly Gln Lys Asp Gln Thr Phe Trp Cys Asp His
805 810 815
Ala Ala Ile Ile Gly Ser Asn Gly Ser Tyr Asn Gly Ile Thr Ser Asn
820 825 830
Val Lys Gly Thr Phe Val Lys Met Ser Ser Ser Thr Asn Asn Ala Asp
835 840 845
Thr Tyr Leu Glu Ile Ser Phe Thr Gly Gly Thr Leu Glu Pro Gly Ala
850 855 860
His Val Gln Ile Gln Gly Arg Phe Ala Lys Asn Asp Trp Ser Asn Tyr
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Thr Gln Ser Asn Asp Tyr Ser Phe Lys Ser Ala Ser Gln Phe Val Glu
885 890 895
Trp Asp Gln Val Thr Ala Tyr Leu Asn Gly Val Leu Val Trp Gly
900 905 910
<210> 5
<211> 448
<212> PRT
<213> PPK-A0A1R1E3J9
<400> 5
Met Ala Leu Asp Glu Ala Pro Ala Glu Ala Arg Pro Gly Ser Arg Ala
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Val Glu Leu Glu Ile Asp Gly Arg Ser Arg Ile Phe Asp Ile Asp Asp
20 25 30
Pro Asp Leu Pro Lys Trp Ile Asp Glu Glu Ala Phe Arg Ser Asp Asp
35 40 45
Tyr Pro Tyr Lys Lys Lys Leu Asp Arg Glu Glu Tyr Glu Glu Thr Leu
50 55 60
Thr Lys Leu Gln Ile Glu Leu Val Lys Val Gln Phe Trp Met Gln Ala
65 70 75 80
Thr Gly Lys Arg Val Met Ala Val Phe Glu Gly Arg Asp Ala Ala Gly
85 90 95
Lys Gly Gly Ala Ile His Ala Thr Thr Ala Asn Met Asn Pro Arg Ser
100 105 110
Ala Arg Val Val Ala Leu Thr Lys Pro Thr Glu Thr Glu Arg Gly Gln
115 120 125
Trp Tyr Phe Gln Arg Tyr Val Ala Thr Phe Pro Thr Ala Gly Glu Phe
130 135 140
Val Leu Phe Asp Arg Ser Trp Tyr Asn Arg Ala Gly Val Glu Pro Val
145 150 155 160
Met Gly Phe Cys Thr Pro Asp Gln Tyr Glu Gln Phe Leu Lys Glu Ala
165 170 175
Pro Arg Phe Glu Glu Met Ile Ala Asn Glu Gly Ile His Leu Phe Lys
180 185 190
Phe Trp Ile Asn Ile Gly Arg Glu Met Gln Leu Lys Arg Phe His Asp
195 200 205
Arg Arg His Asp Pro Leu Lys Ile Trp Lys Leu Ser Pro Met Asp Ile
210 215 220
Ala Ala Leu Ser Lys Trp Asp Asp Tyr Thr Gly Lys Arg Asp Arg Met
225 230 235 240
Leu Lys Glu Thr His Thr Glu His Gly Pro Trp Ala Val Ile Arg Gly
245 250 255
Asn Asp Lys Arg Arg Ser Arg Ile Asn Val Ile Arg His Met Leu Thr
260 265 270
Lys Leu Asp Tyr Asp Gly Lys Asp Glu Ala Ala Ile Gly Glu Val Asp
275 280 285
Glu Lys Ile Leu Gly Ser Gly Pro Gly Phe Leu Arg Leu Thr Ile Gln
290 295 300
Ser Phe Asn Gly Asn Thr Ser Ala Ser Thr Asn Gly Val Ser Pro Lys
305 310 315 320
Phe Lys Leu Val Asn Ser Gly Asn Ser Asp Ile Pro Leu Ser Asp Val
325 330 335
Lys Leu Arg Tyr Tyr Tyr Thr Ile Asp Gly Glu Glu Ala Gln Ser Phe
340 345 350
Trp Ser Asp Trp Ala Ser Met Gly Ser Ala Asn Val Thr Ser Asn Phe
355 360 365
Val Lys Leu Ala Thr Pro Val Thr Gly Ala Asp His Tyr Leu Glu Val
370 375 380
Gly Phe Thr Ser Ala Ala Gly Ser Leu Asn Ala Gly Gln Ser Ala Glu
385 390 395 400
Ile Gln Thr Arg Phe Ser Lys Asn Asn Trp Ser Asn Tyr Thr Gln Thr
405 410 415
Asn Asp Tyr Ser Phe Lys Ala Thr Gly Ser Gln Phe Ala Asn His Asp
420 425 430
Lys Val Thr Gly Tyr Val Asn Gly Gln Leu Val Trp Gly Ile Glu Pro
435 440 445
<210> 6
<211> 304
<212> PRT
<213> PPK-4B9F
<400> 6
Gly His Met Ala Leu Asp Glu Ala Pro Ala Glu Ala Arg Pro Gly Ser
1 5 10 15
Arg Ala Val Glu Leu Glu Ile Asp Gly Arg Ser Arg Ile Phe Asp Ile
20 25 30
Asp Asp Pro Asp Leu Pro Lys Trp Ile Asp Glu Glu Ala Phe Arg Ser
35 40 45
Asp Asp Tyr Pro Tyr Lys Lys Lys Leu Asp Arg Glu Glu Tyr Glu Glu
50 55 60
Thr Leu Thr Lys Leu Gln Ile Glu Leu Val Lys Val Gln Phe Trp Met
65 70 75 80
Gln Ala Thr Gly Lys Arg Val Met Ala Val Phe Glu Gly Arg Asp Ala
85 90 95
Ala Gly Lys Gly Gly Ala Ile His Ala Thr Thr Ala Asn Met Asn Pro
100 105 110
Arg Ser Ala Arg Val Val Ala Leu Thr Lys Pro Thr Glu Thr Glu Arg
115 120 125
Gly Gln Trp Tyr Phe Gln Arg Tyr Val Ala Thr Phe Pro Thr Ala Gly
130 135 140
Glu Phe Val Leu Phe Asp Arg Ser Trp Tyr Asn Arg Ala Gly Val Glu
145 150 155 160
Pro Val Met Gly Phe Cys Thr Pro Asp Gln Tyr Glu Gln Phe Leu Lys
165 170 175
Glu Ala Pro Arg Phe Glu Glu Met Ile Ala Asn Glu Gly Ile His Leu
180 185 190
Phe Lys Phe Trp Ile Asn Ile Gly Arg Glu Met Gln Leu Lys Arg Phe
195 200 205
His Asp Arg Arg His Asp Pro Leu Lys Ile Trp Lys Leu Ser Pro Met
210 215 220
Asp Ile Ala Ala Leu Ser Lys Trp Asp Asp Tyr Thr Gly Lys Arg Asp
225 230 235 240
Arg Met Leu Lys Glu Thr His Thr Glu His Gly Pro Trp Ala Val Ile
245 250 255
Arg Gly Asn Asp Lys Arg Arg Ser Arg Ile Asn Val Ile Arg His Met
260 265 270
Leu Thr Lys Leu Asp Tyr Asp Gly Lys Asp Glu Ala Ala Ile Gly Glu
275 280 285
Val Asp Glu Lys Ile Leu Gly Ser Gly Pro Gly Phe Leu Arg Gly Ser
290 295 300
<210> 7
<211> 345
<212> PRT
<213> Adk-A0A089MPB0
<400> 7
Met Glu Ala Arg Arg Tyr Gly Pro Asn Ile Ile Val Thr Gly Thr Pro
1 5 10 15
Gly Cys Gly Lys Ser Ser Thr Cys Glu Phe Leu Lys Asn Lys Leu Lys
20 25 30
Asp Tyr Lys Tyr Tyr Asn Ile Ser Asp Phe Ala Lys Asp Asn Asp Cys
35 40 45
Phe Glu Gly Tyr Asp Glu Gly Arg Lys Ser His Ile Val Asp Glu Asp
50 55 60
Lys Leu Leu Asp Met Leu Glu Pro Leu Leu Arg Gln Gly Asn Ser Ile
65 70 75 80
Val Asp Trp His Val Asn Asp Val Phe Pro Glu Arg Leu Ile Asp Leu
85 90 95
Val Val Val Leu Arg Cys Asp Asn Ser Asn Leu Tyr Ser Arg Leu His
100 105 110
Ala Arg Gly Tyr His Asp Ser Lys Ile Glu Glu Asn Leu Asp Ala Glu
115 120 125
Ile Met Gly Val Val Lys Gln Asp Ala Val Glu Ser Tyr Glu Pro His
130 135 140
Ile Val Val Glu Leu Gln Ser Asp Thr Lys Glu Asp Met Val Ser Asn
145 150 155 160
Val Ser Arg Ile Val Ala Trp Glu Lys Met Trp Leu Glu Gln His Pro
165 170 175
Asp Gly Val Thr Asn Glu Tyr Gln Gly Pro Arg Ser Asp Asp Glu Asp
180 185 190
Asp Glu Asp Ser Glu Leu Thr Ile Gln Ser Phe Asn Gly Asn Thr Ser
195 200 205
Ala Ser Thr Asn Gly Val Ser Pro Lys Phe Lys Leu Val Asn Ser Gly
210 215 220
Asn Ser Asp Ile Pro Leu Ser Asp Val Lys Leu Arg Tyr Tyr Tyr Thr
225 230 235 240
Ile Asp Gly Glu Glu Ala Gln Ser Phe Trp Ser Asp Trp Ala Ser Met
245 250 255
Gly Ser Ala Asn Val Thr Ser Asn Phe Val Lys Leu Ala Thr Pro Val
260 265 270
Thr Gly Ala Asp His Tyr Leu Glu Val Gly Phe Thr Ser Ala Ala Gly
275 280 285
Ser Leu Asn Ala Gly Gln Ser Ala Glu Ile Gln Thr Arg Phe Ser Lys
290 295 300
Asn Asn Trp Ser Asn Tyr Thr Gln Thr Asn Asp Tyr Ser Phe Lys Ala
305 310 315 320
Thr Gly Ser Gln Phe Ala Asn His Asp Lys Val Thr Gly Tyr Val Asn
325 330 335
Gly Gln Leu Val Trp Gly Ile Glu Pro
340 345
<210> 8
<211> 659
<212> PRT
<213> Pap-P38058
<400> 8
Met Phe Glu Ser Ala Glu Val Gly His Ser Ile Asp Lys Asp Thr Tyr
1 5 10 15
Glu Lys Ala Val Ile Glu Leu Arg Glu Ala Leu Leu Glu Ala Gln Phe
20 25 30
Glu Leu Lys Gln Gln Ala Arg Phe Pro Val Ile Ile Leu Ile Asn Gly
35 40 45
Ile Glu Gly Ala Gly Lys Gly Glu Thr Val Lys Leu Leu Asn Glu Trp
50 55 60
Met Asp Pro Arg Leu Ile Glu Val Gln Ser Phe Leu Arg Pro Ser Asp
65 70 75 80
Glu Glu Leu Glu Arg Pro Pro Gln Trp Arg Phe Trp Arg Arg Leu Pro
85 90 95
Pro Lys Gly Arg Thr Gly Ile Phe Phe Gly Asn Trp Tyr Ser Gln Met
100 105 110
Leu Tyr Ala Arg Val Glu Gly His Ile Lys Glu Ala Lys Leu Asp Gln
115 120 125
Ala Ile Asp Ala Ala Glu Arg Phe Glu Arg Met Leu Cys Asp Glu Gly
130 135 140
Ala Leu Leu Phe Lys Phe Trp Phe His Leu Ser Lys Lys Gln Leu Lys
145 150 155 160
Glu Arg Leu Lys Ala Leu Glu Lys Asp Pro Gln His Ser Trp Lys Leu
165 170 175
Ser Pro Leu Asp Trp Lys Gln Ser Glu Val Tyr Asp Arg Phe Val His
180 185 190
Tyr Gly Glu Arg Val Leu Arg Arg Thr Ser Arg Asp Tyr Ala Pro Trp
195 200 205
Tyr Val Val Glu Gly Ala Asp Glu Arg Tyr Arg Ala Leu Thr Val Gly
210 215 220
Arg Ile Leu Leu Glu Gly Leu Gln Ala Ala Leu Ala Thr Lys Glu Arg
225 230 235 240
Ala Lys Arg Gln Pro His Ala Ala Pro Leu Val Ser Ser Leu Asp Asn
245 250 255
Arg Gly Leu Leu Asp Ser Leu Asp Leu Gly Gln Tyr Leu Asp Lys Asp
260 265 270
Ala Tyr Lys Glu Gln Leu Ala Ala Glu Gln Ala Arg Leu Ala Gly Leu
275 280 285
Ile Arg Asp Lys Arg Phe Arg Gln His Ser Leu Val Ala Val Phe Glu
290 295 300
Gly Asn Asp Ala Ala Gly Lys Gly Gly Ala Ile Arg Arg Val Thr Asp
305 310 315 320
Ala Leu Asp Pro Arg Gln Tyr His Ile Val Pro Ile Ala Ala Pro Thr
325 330 335
Glu Glu Glu Arg Ala Gln Pro Tyr Leu Trp Arg Phe Trp Arg His Ile
340 345 350
Pro Ala Arg Arg Gln Phe Thr Ile Phe Asp Arg Ser Trp Tyr Gly Arg
355 360 365
Val Leu Val Glu Arg Ile Glu Gly Phe Cys Ala Pro Ala Asp Trp Leu
370 375 380
Arg Ala Tyr Gly Glu Ile Asn Asp Phe Glu Glu Gln Leu Ser Glu Tyr
385 390 395 400
Gly Ile Ile Val Val Lys Phe Trp Leu Ala Ile Asp Lys Gln Thr Gln
405 410 415
Met Glu Arg Phe Lys Glu Arg Glu Lys Thr Pro Tyr Lys Arg Tyr Lys
420 425 430
Ile Thr Glu Glu Asp Trp Arg Asn Arg Asp Lys Trp Asp Gln Tyr Val
435 440 445
Asp Ala Val Gly Asp Met Val Asp Arg Thr Ser Thr Glu Ile Ala Pro
450 455 460
Trp Thr Leu Val Glu Ala Asn Asp Lys Arg Phe Ala Arg Val Lys Val
465 470 475 480
Leu Arg Thr Ile Asn Asp Ala Ile Glu Ala Ala Tyr Lys Lys Asp Lys
485 490 495
Leu Ala Ala Thr Ser Ser Met Ser Val Glu Phe Tyr Asn Ser Asn Lys
500 505 510
Ser Ala Gln Thr Asn Ser Ile Thr Pro Ile Ile Lys Ile Thr Asn Thr
515 520 525
Ser Asp Ser Asp Leu Asn Leu Asn Asp Val Lys Val Arg Tyr Tyr Tyr
530 535 540
Thr Ser Asp Gly Thr Gln Gly Gln Thr Phe Trp Cys Asp His Ala Gly
545 550 555 560
Ala Leu Leu Gly Asn Ser Tyr Val Asp Asn Thr Ser Lys Val Thr Ala
565 570 575
Asn Phe Val Lys Glu Thr Ala Ser Pro Thr Ser Thr Tyr Asp Thr Tyr
580 585 590
Val Glu Phe Gly Phe Ala Ser Gly Arg Ala Thr Leu Lys Lys Gly Gln
595 600 605
Phe Ile Thr Ile Gln Gly Arg Ile Thr Lys Ser Asp Trp Ser Asn Tyr
610 615 620
Thr Gln Thr Asn Asp Tyr Ser Phe Asp Ala Ser Ser Ser Thr Pro Val
625 630 635 640
Val Asn Pro Lys Val Thr Gly Tyr Ile Gly Gly Ala Lys Val Leu Gly
645 650 655
Thr Ala Pro
<210> 9
<211> 908
<212> PRT
<213> GshAB- A0A1R1E3J9
<400> 9
Met Ile Ile Asp Arg Leu Leu Gln Arg Ser His Ser His Leu Pro Ile
1 5 10 15
Leu Gln Ala Thr Phe Gly Leu Glu Arg Glu Ser Leu Arg Ile His Gln
20 25 30
Pro Thr Gln Arg Val Ala Gln Thr Pro His Pro Lys Thr Leu Gly Ser
35 40 45
Arg Asn Tyr His Pro Tyr Ile Gln Thr Asp Tyr Ser Glu Pro Gln Leu
50 55 60
Glu Leu Ile Thr Pro Ile Ala Lys Asp Ser Gln Glu Ala Ile Arg Phe
65 70 75 80
Leu Lys Ala Ile Ser Asp Val Ala Gly Arg Ser Ile Asn His Asp Glu
85 90 95
Tyr Leu Trp Pro Leu Ser Met Pro Pro Lys Val Arg Glu Glu Asp Ile
100 105 110
Gln Ile Ala Gln Leu Glu Asp Ala Phe Glu Tyr Asp Tyr Arg Lys Tyr
115 120 125
Leu Glu Lys Thr Tyr Gly Lys Leu Ile Gln Ser Ile Ser Gly Ile His
130 135 140
Tyr Asn Leu Gly Leu Gly Gln Glu Leu Leu Thr Ser Leu Phe Glu Leu
145 150 155 160
Ser Gln Ala Asp Asn Ala Ile Asp Phe Gln Asn Gln Leu Tyr Met Lys
165 170 175
Leu Ser Gln Asn Phe Leu Arg Tyr Arg Trp Leu Leu Thr Tyr Leu Tyr
180 185 190
Gly Ala Ser Pro Val Ala Glu Glu Asp Phe Leu Asp Gln Lys Leu Asn
195 200 205
Asn Pro Val Arg Ser Leu Arg Asn Ser His Leu Gly Tyr Val Asn His
210 215 220
Lys Asp Ile Arg Ile Ser Tyr Thr Ser Leu Lys Asp Tyr Val Asn Asp
225 230 235 240
Leu Glu Asn Ala Val Lys Ser Gly Gln Leu Ile Ala Glu Lys Glu Phe
245 250 255
Tyr Ser Pro Val Arg Leu Arg Gly Ser Lys Ala Cys Arg Asn Tyr Leu
260 265 270
Glu Lys Gly Ile Thr Tyr Leu Glu Phe Arg Thr Phe Asp Leu Asn Pro
275 280 285
Phe Ser Pro Ile Gly Ile Thr Gln Glu Thr Val Asp Thr Val His Leu
290 295 300
Phe Leu Leu Ala Leu Leu Trp Ile Asp Ser Ser Ser His Ile Asp Gln
305 310 315 320
Asp Ile Lys Glu Ala Asn Arg Leu Asn Asp Leu Ile Ala Leu Ser His
325 330 335
Pro Leu Glu Lys Leu Pro Asn Gln Ala Pro Val Ser Asp Leu Val Asp
340 345 350
Ala Met Gln Ser Val Ile Gln His Phe Asn Leu Ser Pro Tyr Tyr Gln
355 360 365
Asp Leu Leu Glu Ser Val Lys Arg Gln Ile Gln Ser Pro Glu Leu Thr
370 375 380
Val Ala Gly Gln Leu Leu Glu Met Ile Glu Gly Leu Ser Leu Glu Thr
385 390 395 400
Phe Gly Gln Arg Gln Gly Gln Ile Tyr His Asp Tyr Ala Trp Glu Ala
405 410 415
Pro Tyr Ala Leu Lys Gly Tyr Glu Thr Met Glu Leu Ser Thr Gln Leu
420 425 430
Leu Leu Phe Asp Val Ile Gln Lys Gly Val Asn Phe Glu Val Leu Asp
435 440 445
Glu Gln Asp Gln Phe Leu Lys Leu Trp His Asn Ser His Ile Glu Tyr
450 455 460
Val Lys Asn Gly Asn Met Thr Ser Lys Asp Asn Tyr Ile Val Pro Leu
465 470 475 480
Ala Met Ala Asn Lys Val Val Thr Lys Lys Ile Leu Asp Glu Lys His
485 490 495
Phe Pro Thr Pro Phe Gly Asp Glu Phe Thr Asp Arg Lys Glu Ala Leu
500 505 510
Asn Tyr Phe Ser Gln Ile Gln Asp Lys Pro Ile Val Val Lys Pro Lys
515 520 525
Ser Thr Asn Phe Gly Leu Gly Ile Ser Ile Phe Lys Thr Ser Ala Asn
530 535 540
Leu Ala Ser Tyr Glu Lys Ala Ile Asp Ile Ala Phe Thr Glu Asp Ser
545 550 555 560
Ala Ile Leu Val Glu Glu Tyr Ile Glu Gly Thr Glu Tyr Arg Phe Phe
565 570 575
Val Leu Glu Gly Asp Cys Ile Ala Val Leu Leu Arg Val Ala Ala Asn
580 585 590
Val Val Gly Asp Gly Ile His Thr Ile Ser Gln Leu Val Lys Leu Lys
595 600 605
Asn Gln Asn Pro Leu Arg Gly Tyr Asp His Arg Ser Pro Leu Glu Val
610 615 620
Ile Glu Leu Gly Glu Val Glu Gln Leu Met Leu Glu Gln Gln Gly Tyr
625 630 635 640
Thr Val Asn Ser Ile Pro Pro Glu Gly Thr Lys Ile Glu Leu Arg Arg
645 650 655
Asn Ser Asn Ile Ser Thr Gly Gly Asp Ser Ile Asp Val Thr Asn Thr
660 665 670
Met Asp Pro Thr Tyr Lys Gln Leu Ala Ala Glu Met Ala Glu Ala Met
675 680 685
Gly Ala Trp Val Cys Gly Val Asp Leu Ile Ile Pro Asn Ala Thr Gln
690 695 700
Ala Tyr Ser Lys Asp Lys Lys Asn Ala Thr Cys Ile Glu Leu Asn Phe
705 710 715 720
Asn Pro Leu Met Tyr Met His Thr Tyr Cys Gln Glu Gly Pro Gly Gln
725 730 735
Ser Ile Thr Pro Arg Ile Leu Ala Lys Leu Phe Pro Glu Leu Ser Ser
740 745 750
Gly Leu Val Pro Arg Gly Ser His Leu Thr Ile Gln Ser Phe Asn Gly
755 760 765
Asn Thr Ser Ala Ser Thr Asn Gly Val Ser Pro Lys Phe Lys Leu Val
770 775 780
Asn Ser Gly Asn Ser Asp Ile Pro Leu Ser Asp Val Lys Leu Arg Tyr
785 790 795 800
Tyr Tyr Thr Ile Asp Gly Glu Glu Ala Gln Ser Phe Trp Ser Asp Trp
805 810 815
Ala Ser Met Gly Ser Ala Asn Val Thr Ser Asn Phe Val Lys Leu Ala
820 825 830
Thr Pro Val Thr Gly Ala Asp His Tyr Leu Glu Val Gly Phe Thr Ser
835 840 845
Ala Ala Gly Ser Leu Asn Ala Gly Gln Ser Ala Glu Ile Gln Thr Arg
850 855 860
Phe Ser Lys Asn Asn Trp Ser Asn Tyr Thr Gln Thr Asn Asp Tyr Ser
865 870 875 880
Phe Lys Ala Thr Gly Ser Gln Phe Ala Asn His Asp Lys Val Thr Gly
885 890 895
Tyr Val Asn Gly Gln Leu Val Trp Gly Ile Glu Pro
900 905
<210> 10
<211> 914
<212> PRT
<213> GshAB- EEU00265
<400> 10
Met Ile Ile Asp Arg Leu Leu Gln Arg Ser His Ser His Leu Pro Ile
1 5 10 15
Leu Gln Ala Thr Phe Gly Leu Glu Arg Glu Ser Leu Arg Ile His Gln
20 25 30
Pro Thr Gln Arg Val Ala Gln Thr Pro His Pro Lys Thr Leu Gly Ser
35 40 45
Arg Asn Tyr His Pro Tyr Ile Gln Thr Asp Tyr Ser Glu Pro Gln Leu
50 55 60
Glu Leu Ile Thr Pro Ile Ala Lys Asp Ser Gln Glu Ala Ile Arg Phe
65 70 75 80
Leu Lys Ala Ile Ser Asp Val Ala Gly Arg Ser Ile Asn His Asp Glu
85 90 95
Tyr Leu Trp Pro Leu Ser Met Pro Pro Lys Val Arg Glu Glu Asp Ile
100 105 110
Gln Ile Ala Gln Leu Glu Asp Ala Phe Glu Tyr Asp Tyr Arg Lys Tyr
115 120 125
Leu Glu Lys Thr Tyr Gly Lys Leu Ile Gln Ser Ile Ser Gly Ile His
130 135 140
Tyr Asn Leu Gly Leu Gly Gln Glu Leu Leu Thr Ser Leu Phe Glu Leu
145 150 155 160
Ser Gln Ala Asp Asn Ala Ile Asp Phe Gln Asn Gln Leu Tyr Met Lys
165 170 175
Leu Ser Gln Asn Phe Leu Arg Tyr Arg Trp Leu Leu Thr Tyr Leu Tyr
180 185 190
Gly Ala Ser Pro Val Ala Glu Glu Asp Phe Leu Asp Gln Lys Leu Asn
195 200 205
Asn Pro Val Arg Ser Leu Arg Asn Ser His Leu Gly Tyr Val Asn His
210 215 220
Lys Asp Ile Arg Ile Ser Tyr Thr Ser Leu Lys Asp Tyr Val Asn Asp
225 230 235 240
Leu Glu Asn Ala Val Lys Ser Gly Gln Leu Ile Ala Glu Lys Glu Phe
245 250 255
Tyr Ser Pro Val Arg Leu Arg Gly Ser Lys Ala Cys Arg Asn Tyr Leu
260 265 270
Glu Lys Gly Ile Thr Tyr Leu Glu Phe Arg Thr Phe Asp Leu Asn Pro
275 280 285
Phe Ser Pro Ile Gly Ile Thr Gln Glu Thr Val Asp Thr Val His Leu
290 295 300
Phe Leu Leu Ala Leu Leu Trp Ile Asp Ser Ser Ser His Ile Asp Gln
305 310 315 320
Asp Ile Lys Glu Ala Asn Arg Leu Asn Asp Leu Ile Ala Leu Ser His
325 330 335
Pro Leu Glu Lys Leu Pro Asn Gln Ala Pro Val Ser Asp Leu Val Asp
340 345 350
Ala Met Gln Ser Val Ile Gln His Phe Asn Leu Ser Pro Tyr Tyr Gln
355 360 365
Asp Leu Leu Glu Ser Val Lys Arg Gln Ile Gln Ser Pro Glu Leu Thr
370 375 380
Val Ala Gly Gln Leu Leu Glu Met Ile Glu Gly Leu Ser Leu Glu Thr
385 390 395 400
Phe Gly Gln Arg Gln Gly Gln Ile Tyr His Asp Tyr Ala Trp Glu Ala
405 410 415
Pro Tyr Ala Leu Lys Gly Tyr Glu Thr Met Glu Leu Ser Thr Gln Leu
420 425 430
Leu Leu Phe Asp Val Ile Gln Lys Gly Val Asn Phe Glu Val Leu Asp
435 440 445
Glu Gln Asp Gln Phe Leu Lys Leu Trp His Asn Ser His Ile Glu Tyr
450 455 460
Val Lys Asn Gly Asn Met Thr Ser Lys Asp Asn Tyr Ile Val Pro Leu
465 470 475 480
Ala Met Ala Asn Lys Val Val Thr Lys Lys Ile Leu Asp Glu Lys His
485 490 495
Phe Pro Thr Pro Phe Gly Asp Glu Phe Thr Asp Arg Lys Glu Ala Leu
500 505 510
Asn Tyr Phe Ser Gln Ile Gln Asp Lys Pro Ile Val Val Lys Pro Lys
515 520 525
Ser Thr Asn Phe Gly Leu Gly Ile Ser Ile Phe Lys Thr Ser Ala Asn
530 535 540
Leu Ala Ser Tyr Glu Lys Ala Ile Asp Ile Ala Phe Thr Glu Asp Ser
545 550 555 560
Ala Ile Leu Val Glu Glu Tyr Ile Glu Gly Thr Glu Tyr Arg Phe Phe
565 570 575
Val Leu Glu Gly Asp Cys Ile Ala Val Leu Leu Arg Val Ala Ala Asn
580 585 590
Val Val Gly Asp Gly Ile His Thr Ile Ser Gln Leu Val Lys Leu Lys
595 600 605
Asn Gln Asn Pro Leu Arg Gly Tyr Asp His Arg Ser Pro Leu Glu Val
610 615 620
Ile Glu Leu Gly Glu Val Glu Gln Leu Met Leu Glu Gln Gln Gly Tyr
625 630 635 640
Thr Val Asn Ser Ile Pro Pro Glu Gly Thr Lys Ile Glu Leu Arg Arg
645 650 655
Asn Ser Asn Ile Ser Thr Gly Gly Asp Ser Ile Asp Val Thr Asn Thr
660 665 670
Met Asp Pro Thr Tyr Lys Gln Leu Ala Ala Glu Met Ala Glu Ala Met
675 680 685
Gly Ala Trp Val Cys Gly Val Asp Leu Ile Ile Pro Asn Ala Thr Gln
690 695 700
Ala Tyr Ser Lys Asp Lys Lys Asn Ala Thr Cys Ile Glu Leu Asn Phe
705 710 715 720
Asn Pro Leu Met Tyr Met His Thr Tyr Cys Gln Glu Gly Pro Gly Gln
725 730 735
Ser Ile Thr Pro Arg Ile Leu Ala Lys Leu Phe Pro Glu Leu Ser Ser
740 745 750
Gly Leu Val Pro Arg Gly Ser His Leu Lys Val Glu Phe Tyr Asn Ser
755 760 765
Asn Pro Ser Asp Thr Thr Asn Ser Ile Asn Pro Gln Phe Lys Val Thr
770 775 780
Asn Thr Gly Ser Ser Ala Ile Asp Leu Ser Lys Leu Thr Leu Arg Tyr
785 790 795 800
Tyr Tyr Thr Val Asp Gly Gln Lys Asp Gln Thr Phe Trp Cys Asp His
805 810 815
Ala Ala Ile Ile Gly Ser Asn Gly Ser Tyr Asn Gly Ile Thr Ser Asn
820 825 830
Val Lys Gly Thr Phe Val Lys Met Ser Ser Ser Thr Asn Asn Ala Asp
835 840 845
Thr Tyr Leu Glu Ile Ser Phe Thr Gly Gly Thr Leu Glu Pro Gly Ala
850 855 860
His Val Gln Ile Gln Gly Arg Phe Ala Lys Asn Asp Trp Ser Asn Tyr
865 870 875 880
Thr Gln Ser Asn Asp Tyr Ser Phe Lys Ser Ala Ser Gln Phe Val Glu
885 890 895
Trp Asp Gln Val Thr Ala Tyr Leu Asn Gly Val Leu Val Trp Gly Lys
900 905 910
Glu Pro

Claims (10)

1.融合酶的组合物,其特征在于,包括:
(1)融合有谷胱甘肽合成酶与几丁质蛋白结合域的第一融合蛋白;和
(2)融合有包括三磷酸腺苷再生酶与几丁质蛋白结合域的第二融合蛋白。
2.如权利要求1所述的组合物,其特征在于,所述谷胱甘肽合成酶包括单功能合成酶GshA、GshB、双功能合成酶GshAB中的一种或两者以上的酶;
所述三磷酸腺苷再生酶包括多聚磷酸激酶、腺苷酸激酶、磷酸转移酶中的一种或两者以上的酶;
几丁质蛋白结合域包括Clostridium cellulovorans P38058,ClostridiumThermocellum 4B9F,Paenibacillus amylolyticus A0A1R1E3J9,Hungateiclostridiumthermocellum EEU00265,Lachnoclostridium phytofermentans A9KJ82,Anaerocolumnajejuensis A0A1M6JI59,Lachnoclostridium phytofermentans A9KT91,Paenibacillussp A0A1H2W1K8,Paenibacillus odorifer A0A089MPB0,Paenibacillus kribbensisA0A222WU32或Hungateiclostridium saccincola A0A2S8R9S3。
3.如权利要求1或2所述的组合物,其特征在于,所述第一融合蛋白:
(I)、具有如SEQ ID NO:1、2、3或4所示的氨基酸序列;或
(II)、如(I)所述氨基酸序列经取代、缺失或添加一个或多个氨基酸获得的氨基酸序列,且与(I)所示的氨基酸序列功能相同或相似的氨基酸序列;或
(III)、与(I)或(II)所述序列至少有80%同源性的
氨基酸序列;
所述第二融合蛋白:
(IV)、具有如SEQ ID NO:5、6、7或8所示的氨基酸序列;或
(V)、如(IV)所述氨基酸序列经取代、缺失或添加一个或多个氨基酸获得的氨基酸序列,且与(IV)所示的氨基酸序列功能相同或相似的氨基酸序列;或
(VI)、与(IV)或(V)所述序列至少有80%同源性的氨基酸序列。
4.表达如权利要求1至3任一项所述的组合物中所述第一融合蛋白与所述第二融合蛋白的基因。
5.含有如权利要求4所述的基因的载体。
6.固定化融合酶的制备方法,其特征在于,以几丁质载体为固定化载体,纯化、固定如权利要求1至3任一项所述的组合物中所述第一融合蛋白和/或所述第二融合蛋白,获得固定化第一融合蛋白和/或固定化第二融合蛋白,所述固定化第一融合蛋白和/或固定化第二融合蛋白为固定化融合酶;
所述几丁质载体选自:几丁质树脂、几丁质磁性珠、甲壳素高聚体或甲壳素凝胶。
7.如权利要求6所述的制备方法制得的固定化融合酶。
8.如权利要求7所述的固定化融合酶在制备谷胱甘肽中的应用。
9.固定化融合酶的组合物,其特征在于,包括如权利要求7所述的固定化融合酶,所述固定化第一融合蛋白与所述固定化第二融合蛋白的质量比为1:(0.05~20)。
10.谷胱甘肽的制备方法,其特征在于,取谷胱甘肽的合成原料经如权利要求7所述的固定化合成酶或如权利要求9所述的固定化融合酶的组合物催化,制得谷胱甘肽。
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