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Yajuan Z, Yajuan D, Lingli Z, Zhoukun L, Zhongli C, Yan H. Characterization of a novel aldo-keto reductase with anti-Prelog stereospecificity from Corallococcus sp. EGB. Int J Biol Macromol 2020; 146:36-44. [DOI: 10.1016/j.ijbiomac.2019.12.214] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 12/03/2019] [Accepted: 12/24/2019] [Indexed: 11/26/2022]
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2
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Jin Q, Wu Z, Dou Y, Yang Y, Xia J, Jin Z. A novel carbonyl reductase with anti-Prelog stereospecificity for the production of t-butyl 6-cyano-(3 R, 5 R)-dihydroxyhexanoate. 3 Biotech 2019; 9:194. [PMID: 31065494 DOI: 10.1007/s13205-019-1722-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Accepted: 04/17/2019] [Indexed: 11/24/2022] Open
Abstract
A novel gene (crc1) from Candida boidinii was cloned and then overexpressed in a recombinant strain BL21(DE3)/pET30a-crc1 of Escherichia coli. The resulting carbonyl reductase was prepared through fermentations using the recombinant strain. The purified enzyme showed an NADPH-dependent activity and specific activity was 4.65 U/mg using t-butyl 6-cyano-(5R)-hydroxy-3-oxohexanoate (ATS-6) as substrate. The enzyme was optimally active at 35 °C and pH 7, respectively. The apparent K m and V max of the enzyme for ATS-6 are 1.5 mM and 21.1 μmol/min mg, respectively, indicating excellent anti-Prelog stereospecificity. Under the optimum condition, t-butyl 6-cyano-(3R,5R)-dihydroxyhexanoate (ATS-7) was prepared with the enzyme with high d.e. value (99.9%) and good conversion (94%) in 4 h, indicating high stereoselectivity and conversion efficiency in biotransformation of ATS-6 to ATS-7.
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Affiliation(s)
- Qingchao Jin
- 1School of Biological and Chemical Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100 China
| | - Zhige Wu
- 1School of Biological and Chemical Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100 China
| | - Yanping Dou
- Agriculture, Food & Life, SGS-CSTC Standards Technical Services Co., Ltd, Ningbo Branch, Ningbo, 315040 China
| | - Yu Yang
- 1School of Biological and Chemical Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100 China
| | - Jingjing Xia
- 1School of Biological and Chemical Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100 China
| | - Zhihua Jin
- 1School of Biological and Chemical Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, 315100 China
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3
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Yamane T. Kinetics of batch-wise enzymatic cycling system for mass production of chiral compound. BIOCATAL BIOTRANSFOR 2017. [DOI: 10.1080/10242422.2017.1342639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Tsuneo Yamane
- Graduate School of Biological and Agricultural Sciences, Nagoya University, Nagoya, Japan
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Li K, Zhang R, Xu Y, Wu Z, Li J, Zhou X, Jiang J, Liu H, Xiao R. Sortase A-mediated crosslinked short-chain dehydrogenases/reductases as novel biocatalysts with improved thermostability and catalytic efficiency. Sci Rep 2017; 7:3081. [PMID: 28596548 PMCID: PMC5465079 DOI: 10.1038/s41598-017-03168-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 04/25/2017] [Indexed: 02/01/2023] Open
Abstract
(S)-carbonyl reductase II (SCRII) from Candida parapsilosis is a short-chain alcohol dehydrogenase/reductase. It catalyses the conversion of 2-hydroxyacetophenone to (S)-1-phenyl-1,2-ethanediol with low efficiency. Sortase was reported as a molecular “stapler” for site-specific protein conjugation to strengthen or add protein functionality. Here, we describe Staphylococcus aureus sortase A-mediated crosslinking of SCRII to produce stable catalysts for efficient biotransformation. Via a native N-terminal glycine and an added GGGGSLPETGG peptide at C-terminus of SCRII, SCRII subunits were conjugated by sortase A to form crosslinked SCRII, mainly dimers and trimers. The crosslinked SCRII showed over 6-fold and 4-fold increases, respectively, in activity and kcat/Km values toward 2-hydroxyacetophenone compared with wild-type SCRII. Moreover, crosslinked SCRII was much more thermostable with its denaturation temperature (Tm) increased to 60 °C. Biotransformation result showed that crosslinked SCRII gave a product optical purity of 100% and a yield of >99.9% within 3 h, a 16-fold decrease in transformation duration with respect to Escherichia coli/pET-SCRII. Sortase A-catalysed ligation also obviously improved Tms and product yields of eight other short-chain alcohol dehydrogenases/reductases. This work demonstrates a generic technology to improve enzyme function and thermostability through sortase A-mediated crosslinking of oxidoreductases.
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Affiliation(s)
- Kunpeng Li
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Rongzhen Zhang
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China. .,National Key Laboratory for Food Science, Jiangnan University, Wuxi, 214122, P. R. China.
| | - Yan Xu
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China. .,National Key Laboratory for Food Science, Jiangnan University, Wuxi, 214122, P. R. China.
| | - Zhimeng Wu
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Jing Li
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Xiaotian Zhou
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Jiawei Jiang
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Haiyan Liu
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, P. R. China
| | - Rong Xiao
- Center for Advanced Biotechnology and Medicine, Rutgers University, Piscataway, NJ, 08854, USA.,School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, P. R. China
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Sun T, Li B, Nie Y, Wang D, Xu Y. Enhancement of asymmetric bioreduction of N,N-dimethyl-3-keto-3-(2-thienyl)-1-propanamine to corresponding (S)-enantiomer by fusion of carbonyl reductase and glucose dehydrogenase. BIORESOUR BIOPROCESS 2017. [DOI: 10.1186/s40643-017-0151-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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6
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Candida parapsilosis: A versatile biocatalyst for organic oxidation-reduction reactions. Bioorg Chem 2016; 68:187-213. [DOI: 10.1016/j.bioorg.2016.08.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 08/08/2016] [Accepted: 08/10/2016] [Indexed: 11/22/2022]
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7
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Li B, Nie Y, Mu XQ, Xu Y. De novo construction of multi-enzyme system for one-pot deracemization of (R,S)-1-phenyl-1,2-ethanediol by stereoinversion of (S)-enantiomer to the corresponding counterpart. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.04.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Chen R, Deng J, Lin J, Yin X, Xie T, Yang S, Wei D. Assessing the stereoselectivity of carbonyl reductases toward the reduction of OPBE and docking analysis. Biotechnol Appl Biochem 2015; 63:465-70. [DOI: 10.1002/bab.1397] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 05/14/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Rong Chen
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
- Center for Biomedicine and Health; Division of Basical Medicine; Hangzhou Normal University; Hangzhou People's Republic of China
| | - Jian Deng
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
| | - Jinping Lin
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
| | - Xiaopu Yin
- Center for Biomedicine and Health; Division of Basical Medicine; Hangzhou Normal University; Hangzhou People's Republic of China
| | - Tian Xie
- Center for Biomedicine and Health; Division of Basical Medicine; Hangzhou Normal University; Hangzhou People's Republic of China
| | - Shengli Yang
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
| | - Dongzhi Wei
- State Key Laboratory of Bioreactor Engineering; New World Institute of Biotechnology; East China University of Science and Technology; Shanghai People's Republic of China
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Cai P, An M, Xu S, Yan M, Hao N, Li Y, Xu L. Asymmetric synthesis of (S)-4-chloro-3-hydroxybutanoate by sorbose reductase from Candida albicans with two co-existing recombinant Escherichia coli strains. Biosci Biotechnol Biochem 2015; 79:1090-3. [PMID: 25765951 DOI: 10.1080/09168451.2015.1012145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
An NADPH-dependent sorbose reductase from Candida albicans was identified to catalyze the asymmetric reduction of ethyl 4-chloro-3-oxobutanoate (COBE). The activity of the recombinant enzyme toward COBE was 6.2 U/mg. The asymmetric reduction of COBE was performed with two coexisting recombinant Escherichia coli strains, in which the recombinant E. coli expressing glucose dehydrogenase was used as an NADPH regenerator. An optical purity of 99% (e.e.) and a maximum yield of 1240 mM (S)-4-chloro-3-hydroxybutanoate were obtained under an optimal biomass ratio of 1:2. A highest turnover number of 53,900 was achieved without adding extra NADP(+)/NADPH compared with those known COBE-catalytic systems.
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Affiliation(s)
- Ping Cai
- a State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering , Nanjing Tech University , Nanjing , P.R. China
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You ZY, Liu ZQ, Zheng YG. Characterization of a newly synthesized carbonyl reductase and construction of a biocatalytic process for the synthesis of ethyl (S)-4-chloro-3-hydroxybutanoate with high space-time yield. Appl Microbiol Biotechnol 2013; 98:1671-80. [PMID: 23793261 DOI: 10.1007/s00253-013-5042-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 05/27/2013] [Accepted: 06/07/2013] [Indexed: 11/28/2022]
Abstract
A carbonyl reductase (SCR2) gene was synthesized and expressed in Escherichia coli after codon optimization to investigate its biochemical properties and application in biosynthesis of ethyl (S)-4-chloro-3-hydroxybutanoate ((S)-CHBE), which is an important chiral synthon for the side chain of cholesterol-lowering drug. The recombinant SCR2 was purified and characterized using ethyl 4-chloro-3-oxobutanoate (COBE) as substrate. The specific activity of purified enzyme was 11.9 U mg(-1). The optimum temperature and pH for enzyme activity were 45 °C and pH 6.0, respectively. The half-lives of recombinant SCR2 were 16.5, 7.7, 2.2, 0.41, and 0.05 h at 30 °C, 35 °C, 40 °C, 45 °C, and 50 °C, respectively, and it was highly stable in acidic environment. This SCR2 displayed a relatively narrow substrate specificity. The apparent K m and V max values of purified enzyme for COBE are 6.4 mM and 63.3 μmol min(-1) mg(-1), respectively. The biocatalytic process for the synthesis of (S)-CHBE was constructed by this SCR2 in an aqueous-organic solvent system with a substrate fed-batch strategy. At the final COBE concentration of 1 M, (S)-CHBE with yield of 95.3% and e.e. of 99% was obtained after 6-h reaction. In this process, the space-time yield per gram of biomass (dry cell weight, DCW) and turnover number of NADP(+) to (S)-CHBE were 26.5 mmol L(-1) h(-1) g(-1) DCW and 40,000 mol/mol, respectively, which were the highest values as compared with other works.
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Affiliation(s)
- Zhong-Yu You
- Institute of Bioengineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, People's Republic of China
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11
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Wang Q, Shen L, Ye T, Cao D, Chen R, Pei X, Xie T, Li Y, Gong W, Yin X. Overexpression and characterization of a novel (S)-specific extended short-chain dehydrogenase/reductase from Candida parapsilosis. BIORESOURCE TECHNOLOGY 2012; 123:690-694. [PMID: 22939596 DOI: 10.1016/j.biortech.2012.07.060] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 07/13/2012] [Accepted: 07/16/2012] [Indexed: 06/01/2023]
Abstract
The gene encoding a putative protein from Candida parapsilosis CDC317 (CPE) was cloned and overexpressed in Escherichia coli. The protein was amenable to overexpression in E. coli and constituted 35% of the total cell protein content. The optimal activity was determined at pH 5.5 and 40°C with the substrate 4-chloro-3-oxobutanoate ethyl ester (COBE). The optical purity of the product was over 99% enantiomeric excess for the (S)-isomer, and the molar conversion yield of the product was 91.1%. The apparent k(m) value for COBE was 0.19±0.01mM, which is an order of magnitude lower than that of other enzymes in the literature.
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Affiliation(s)
- Qiuyan Wang
- Research Center for Biomedicine and Health, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310012, China
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12
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A novel reductase from Candida albicans for the production of ethyl (S)-4-chloro-3-hydroxybutanoate. Biosci Biotechnol Biochem 2012; 76:1210-2. [PMID: 22790948 DOI: 10.1271/bbb.120048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A novel NADPH-dependent reductase (CaCR) from Candida albicans was cloned for the first time. It catalyzed asymmetric reduction to produce ethyl (S)-4-chloro-3-hydroxybutanoate ((S)-CHBE). It contained an open reading frame of 843 bp encoding 281 amino acids. When co-expressed with a glucose dehydrogenase in Escherichia coli, recombinant CaCR exhibited an activity of 5.7 U/mg with ethyl 4-chloro-3-oxobutanoate (COBE) as substrate. In the biocatalysis of COBE to (S)-CHBE, 1320 mM (S)-CHBE was obtained without extra NADP+/NADPH in a water/butyl acetate system, and the optical purity of the (S)-isomer was higher than 99% enantiomeric excess.
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13
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Nie Y, Xiao R, Xu Y, Montelione GT. Novel anti-Prelog stereospecific carbonyl reductases from Candida parapsilosis for asymmetric reduction of prochiral ketones. Org Biomol Chem 2011; 9:4070-8. [PMID: 21505708 DOI: 10.1039/c0ob00938e] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The application of biocatalysis to the synthesis of chiral molecules is one of the greenest technologies for the replacement of chemical routes due to its environmentally benign reaction conditions and unparalleled chemo-, regio- and stereoselectivities. We have been interested in searching for carbonyl reductase enzymes and assessing their substrate specificity and stereoselectivity. We now report a gene cluster identified in Candida parapsilosis that consists of four open reading frames including three putative stereospecific carbonyl reductases (scr1, scr2, and scr3) and an alcohol dehydrogenase (cpadh). These newly identified three stereospecific carbonyl reductases (SCRs) showed high catalytic activities for producing (S)-1-phenyl-1,2-ethanediol from 2-hydroxyacetophenone with NADPH as the coenzyme. Together with CPADH, all four enzymes from this cluster are carbonyl reductases with novel anti-Prelog stereoselectivity. SCR1 and SCR3 exhibited distinct specificities to acetophenone derivatives and chloro-substituted 2-hydroxyacetophenones, and especially very high activities towards ethyl 4-chloro-3-oxobutyrate, a β-ketoester with important pharmaceutical potential. Our study also showed that genomic mining is a powerful tool for the discovery of new enzymes.
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Affiliation(s)
- Yao Nie
- Center for Advanced Biotechnology and Medicine, Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, New Jersey 08854, USA
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Richter N, Hummel W. Biochemical characterisation of a NADPH-dependent carbonyl reductase from Neurospora crassa reducing α- and β-keto esters. Enzyme Microb Technol 2011; 48:472-9. [PMID: 22113019 DOI: 10.1016/j.enzmictec.2011.02.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 02/06/2011] [Accepted: 02/07/2011] [Indexed: 10/18/2022]
Abstract
A gene encoding an NADPH-dependent carbonyl reductase from Neurospora crassa (nccr) was cloned and heterologously expressed in Escherichia coli. The enzyme (NcCR) was purified and biochemically characterised. NcCR exhibited a restricted substrate spectrum towards various ketones, and the highest activity (468U/mg) was observed with dihydroxyacetone. However, NcCR proved to be very selective in the reduction of different α- and β-keto esters. Several compounds were converted to the corresponding hydroxy ester in high enantiomeric excess (ee) at high conversion rates. The enantioselectivity of NcCR for the reduction of ethyl 4-chloro-3-oxobutanoate showed a strong dependence on temperature. This effect was studied in detail, revealing that the ee could be substantially increased by decreasing the temperature from 40 °C (78.8%) to -3 °C (98.0%). When the experimental conditions were optimised to improve the optical purity of the product, (S)-4-chloro-3-hydroxybutanoate (ee 98.0%) was successfully produced on a 300 mg (1.8 mmol) scale using NcCR at -3 °C.
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Affiliation(s)
- Nina Richter
- evocatal GmbH, Merowingerplatz 1a, 40225 Düsseldorf, Germany
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Ye Q, Ouyang P, Ying H. A review—biosynthesis of optically pure ethyl (S)-4-chloro-3-hydroxybutanoate ester: recent advances and future perspectives. Appl Microbiol Biotechnol 2010; 89:513-22. [DOI: 10.1007/s00253-010-2942-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2010] [Revised: 10/08/2010] [Accepted: 10/09/2010] [Indexed: 12/11/2022]
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16
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Liu ZL, Moon J. A novel NADPH-dependent aldehyde reductase gene from Saccharomyces cerevisiae NRRL Y-12632 involved in the detoxification of aldehyde inhibitors derived from lignocellulosic biomass conversion. Gene 2009; 446:1-10. [PMID: 19577617 DOI: 10.1016/j.gene.2009.06.018] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2009] [Revised: 06/16/2009] [Accepted: 06/19/2009] [Indexed: 10/20/2022]
Abstract
Aldehyde inhibitors such as furfural, 5-hydroxymethylfurfural, anisaldehyde, benzaldehyde, cinnamaldehyde, and phenylaldehyde are commonly generated during lignocellulosic biomass conversion process for low-cost cellulosic ethanol production that interferes with subsequent microbial growth and fermentation. In situ detoxification of the aldehyde inhibitors is possible by the tolerant ethanologenic yeast that involves multiple genes including numerous functional reductases. In this study, we report a novel aldehyde reductase gene clone Y63 from ethanologenic yeast Saccharomyces cerevisiae NRRL Y12632, representing the uncharacterized ORF YGL157W, which demonstrated NADPH-dependent reduction activities toward at least 14 aldehyde substrates. The identity of gene clone Y63 is the same with YGL157W of SGD since a variation of only 35 nucleotides in genomic sequence and three amino acid residues were observed between the two that share the same length of 347 residues in size. As one among the highly induced genes, YGL157W of Y-12632 showed significantly high levels of transcript abundance in response to furfural and HMF challenges. Based on the deduced amino acid sequence and the most conserved functional motif analyses including closely related reductases from five other yeast species to this date, YGL157W was identified as a member of the subclass 'intermediate' of the SDR (short-chain dehydrogenase/reductase) superfamily with the following typical characteristics: the most conserved catalytic site to lie at Tyr(169)-X-X-X-Lys(173); an indispensable reduction catalytic triad at Ser(131), Tyr(169), and Lys(173), and an approved cofactor-binding motif at Gly(11)-X-X-Gly(14)-X-X-Ala(17) near the N-terminus. YGL039W, YDR541C, and YOL151W (GRE2) appeared to be the similar type of enzymes falling into the same category of the intermediate subfamily.
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Affiliation(s)
- Z Lewis Liu
- U.S. Department of Agriculture, Agricultural Research Service, National Center for Agricultural Utilization Research, 1815 N University St., Peoria, IL 61604, USA.
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Nie Y, Xu Y, Mu XQ, Wang HY, Yang M, Xiao R. Purification, characterization, gene cloning, and expression of a novel alcohol dehydrogenase with anti-prelog stereospecificity from Candida parapsilosis. Appl Environ Microbiol 2007; 73:3759-64. [PMID: 17435004 PMCID: PMC1932682 DOI: 10.1128/aem.02185-06] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2006] [Accepted: 03/31/2007] [Indexed: 11/20/2022] Open
Abstract
An alcohol dehydrogenase from Candida parapsilosis CCTCC M203011 was characterized along with its biochemical activity and structural gene. The amino acid sequence shows similarity to those of the short-chain dehydrogenase/reductases but no overall identity to known proteins. This enzyme with unusual stereospecificity catalyzes an anti-Prelog reduction of 2-hydroxyacetophenone to (S)-1-phenyl-1,2-ethanediol.
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Affiliation(s)
- Yao Nie
- Key Laboratory of Industrial Biotechnology of Ministry of Education, School of Biotechnology, Southern Yangtze University, Wuxi 214122, People's Republic of China
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Current awareness on yeast. Yeast 2006. [DOI: 10.1002/yea.1321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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