姜卫红
个人简介
1991-06--1995-07美国普度大学生物系 博士后
1982-09--1988-02 南京农业大学 博士
1978-09--1982-07 南京大学 学士
1995-08~1999-03 中国科学院上海生命科学研究院,副研究员
1999-03~现在 中国科学院上海生命科学研究院,研究员
国家杰出青年基金获得者,上海市微生物学会副理事长
研究工作
课题组致力于开展重要工业微生物的代谢调控和代谢工程研究,聚焦产溶剂梭菌和产抗生素链霉菌。在建立和完善分子遗传操作平台的基础上,发掘和鉴定与重要表型相关的关键功能基因和代谢途径,解析其分子机制;并进行重要功能元件(结构元件、调控元件和信号响应元件)的作用适配和功能优化,从而为相关工业菌株高效合成化学品或天然产物提供分子改造的元件和策略。
主要成果
1. 产溶剂梭菌的代谢调控与基因编辑技术研究
(1) 揭示梭菌新型双组分调控复合体感受木糖的分子机制
木糖是秸秆等木质纤维原料中除葡萄糖外最主要的糖组分,是自然界中储量最丰富的五碳糖。如何使之为微生物高效利用并合成有用的化学品,是人们一直关注的问题。产溶剂梭菌是一类重要的工业微生物,它可以通过发酵产生丁醇、乙醇和丙酮等大宗化学品及生物燃料。尽管该菌可以利用一定量的木糖,但效率低下。在之前的研究中,课题组发现在梭菌细胞内膜上存在一类保守的双组分蛋白复合体XylFII-LytS,用于感受环境中的木糖并调控其利用(Molecular Microbiology,2014)。这是木糖代谢过程中的一个重要环节,但其分子机制却知之甚少。
为此,课题组和张鹏研究员课题组合作解析了拜氏梭菌中的木糖信号感应复合体XylFII-LytS周质空间结构域(XylFII-LytSN)在结合与不结合木糖状态下的三维结构。通过对这些结构的比较与分析发现,木糖分子可以特异性地结合在XylFII蛋白上,并诱导其N端和C端结构域由开启状态转变为闭合状态。这种构象改变进而诱导两个XylFII-LytSN二聚体形成异源四聚体,成为有利于信号传导的分子构架。因此推断,结合两分子木糖的XylFII-LytS异源四聚体是其活性形式,木糖信号经由这一四聚体中的两分子组氨酸激酶LytS传导到膜内,通过激活应答调控蛋白启动木糖ABC转运蛋白XylFGH的表达来改善木糖的利用。进一步,研究团队利用生理生化及遗传学方法,通过定点突变目的蛋白的关键氨基酸残基,并结合梭菌体内实验和表型分析,证实了上述推断。该研究揭示了细菌感受重要五碳糖—木糖并调控其吸收利用的分子机制,为这一重要五碳糖的利用和工业菌株的分子改造提供了新的思路和依据。相关研究工作发表在PNAS上,并被国家基金委推荐为亮点工作。
1.Yang Y.,L Zhang,H Huang,C Yang,S Yang,Y Gu*,W Jiang*. A flexible binding site architecture provides new insights into CcpA global regulation in Gram-positive bacteria. (2017) mBio 24:8(1).
2.Li J.,C Wang,G Yang,Z Sun.,H Guo,K Shao,Y Gu,W Jiang*,P Zhang*. Molecular mechanism of environmental D-xylose perception by a XylFII-LytS complex in bacteria. (2017) PNAS,114(31):8235-8241.
3.Li L.,W Jiang*,Y Lu*. A novel two-component system,GluR-K,involved in glutamate sensing and uptake in Streptomyces coelicolor. (2017) J Bacteriol 199(18) e00097-17.
4.Li L.,W Jiang*,Y Lu*. New strategies and approaches for engineering biosynthetic gene clusters of microbial natural products. (2017) Biotechnol Adv 35:936-949.
5.Li L.,G Zheng,J Chen,M Ge,W Jiang*,Y Lu*. Multiplexed site-specific genome engineering for overproducing bioactive secondary metabolites in actinomycetes. (2017) Metab Eng 40: 80-92.
6.Meng J.,R Feng,G Zheng,M Ge,Mast Y,Wohlleben W*,J Gao,W Jiang* and Y Lu*. Improvement of pristinamycin I (PI) production in Streptomyces pristinaespiralis by metabolic engineering approaches. (2017) Synth Syst Biotechnol 2:130-136.
7.He J.,H Zhu,G Zheng,P Liu,J Wang,G Zhao,G Zhu*,W Jiang*,Y Lu*,Direct invovlement of the master nitrogen metabolism regulator in antibiotic Biosynthesis in Streptomyces. (2016) J Biol Chem. 291 (51) :26443.
8.Yang Y.,N Lang,G Yang,S Yang,W Jiang*,Y Gu*,Improving the performance of solventogenic clostridia by reinforcing the biotin synthetic pathway. (2016) Metab Eng 35: 121-128.
9.Xue Q.,Y Yang,J Chen,L Chen,S Yang,W Jiang*,Y Gu*,Roles of three AbrBs in regulating two-phase Clostridium acetobutylicum fermention.(2016)Appl Microbiol Biotechnol 100(21):9081-9089.
10.Ren C.,Z Wen,Y Xu,W Jiang*,Y Gu*,Clostridia: a flexible microbial platform for the production of alcohols. (2016) Curr Opin Chem Biol 35:65-72.
11.Dun J.,L Ruan,H Zhu,W Wang,G Zheng,M Ge,W Jiang* and Y Lu*,Identification of an atypical response regulator PapR6,a pathway-specific activator of pristinamycin II biosynthesis in Streptomyces pristinaespiralis. (2015) Journal of Bacteriology 197(3):441-450.
12.Wu Y.,Y Yang,C Ren,C Yang,S Yang,Y Gu*,W Jiang*,Molecular modulation of pleiotropic regulator CcpA for glucose and xylose coutilization by solvent-producing Clostridium acetobutylicum. (2015) Metab Eng 28:169-179.
13.Sun Z.,Y Chen,C Yang,S Yang,Y Gu*,W Jiang*,A novel three-component system-based regulatory model for d-xylose sensing and transport in Clostridium beijerinckii. (2015) Mol Microbiol 295(4):576–589.
14.Li L.,Y Zhao,L Ruan,S Yang,M Ge,W Jiang* and Y Lu*,A stepwise increase in pristinamycin II biosynthesis by Streptomyces pristinaespiralis through combinatorial metabolic engineering. (2015) Metab Eng 29:12-25.
15.Li N.,J Yang,C Chai,S Yang,W Jiang*,Y Gu*,Complete genome sequence of Clostridium carboxidivorans P7T,asyngas-fermenting bacterium capable of producing long-chain alcohols. (2015) Journal of Biotechnology 211:44–45.
16.Jin L.,H Zhang,L Chen,S Yang,W Jiang*,Y Gu*,Identification and combinatorial overexpression of phosphate pentose pathway genes in Clostridium acetobutylicum for enhancing D-xylose utilization . (2014) Journal of Biotechnology 173:7-9.
17.Gu Y*.,Y Jiang,S Yang and W Jiang*,Utilization of economical substrate-derived carbohydrates by solventogenic clostridia: pathway dissection,regulation and engineering. (2014) Current Opinion in Biotechnology 29:124-131.
18.Yu Z.,H Zhu,G Zheng,W Jiang*,Y Lu*,A genome-wide transcriptomic analysis reveals diverse roles of the two-component system DraR-K in the physiological and morphological differentiation of Streptomyces coelicolor. (2014) Appl Microbiol Biotechnol 98:9351-9363.
19.Wang R.,Yvonne Mast,J Wang,W Zhang,G Zhao,Wolfgang Wohlleben,Y Lu* and W Jiang*,Identification of two-component system AfsQ1/Q2 regulon and its cross-regulation with GlnR in Streptomyces coelicolor.(2013)Molecular Microbiology 87(1):30-48.
20.Yu Z.,H Zhu,F Dang,W Zhang,Z Qin,S Yang,H Tan,Y Lu*,W Jiang*,Differential regulation of antibiotic biosynthesis by DraR-K,a novel two-component system in Streptomyces coelicolor. (2012) Molecular Microbiology 85(3):535-5562.
21.Ren C.,Y Gu,Y Wu,W Zhang,C Yang,S Yang and W Jiang*,Pleiotropic Functions of Catabolite Control Protein CcpA in Butanol-producing Clostridium acetobutylicum. (2012) BMC Genomics 13:349-368.
22.Hu S.,H Zheng,Y Gu,J Zhao,W Zhang,Y Yang,S Wang,G Zhao,S Yang*,W Jiang*,Comparative genomic and transcriptomic analysis revealed genetic characteristics related to solvent formation and xylose utilization in Clostridium acetobutylicum EA 2018. (2011) BMC Genomics,12: 93.
23.Lu Y.,J He,H Zhu,Z Yu,R Wang,Y Chen,W Zhang,S Yang,W Jiang*,An orphan histidine kinase,OhkA,regulates both secondary metabolism and morphological differentiation in Streptomyces coelicolor. (2011) J. Bacteriol,193: 3020-3032.
24.Gu Y.,Y Jiang,H Wu,X Liu,Z Li,J Li,H Xiao,Z Shen,H Dong,Y Yang,Y Li,W Jiang* and S.Yang*,Economical challenges to microbial producers of butanol: Feedstock,butanol ratio and titer. (2011) Biotechnol. J 6: 1348–1357.
25.Xiao H.,Y Gu,Y Ning,Y Yang,W.J.Mitchell,W Jiang*,S Yang*,Confirmation and Elimination of Xylose Metabolism Bottlenecks in Glucose Phosphoenolpyruvate-Dependent Phosphotransferase System-Deficient Clostridium acetobutylicum for Simultaneous Utilization of Glucose,Xylose,and Arabinose. ( 2011) Appl Environ Microbiol 77:7886-7895.
26.Ren C.,Y Gu,S Hu,Y Wu,P Wang,Y Yang,C Yang,S Yang*,W Jiang*,Identification and inactivation of pleiotropic regulator CcpA to eliminate glucose repression of xylose utilization in Clostridium acetobutylicum. (2010) Metabolic Engineering,12: 446-454.
27.Gu Y.,Y Ding,C Ren,Z Sun,D. Rodionov,W Zhang,S Yang,C Yang,W. Jiang*,Reconstruction of xylose utilization pathway and regulons in Firmicutes. (2010) BMC Genomics,11: 255.