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Dong S, Xuan J, Feng Y, Cui Q. Deciphering the stereo-specific catalytic mechanisms of cis-epoxysuccinate hydrolases producing L(+)-tartaric acid. J Biol Chem 2024; 300:105635. [PMID: 38199576 PMCID: PMC10869282 DOI: 10.1016/j.jbc.2024.105635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/01/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024] Open
Abstract
Microbial epoxide hydrolases, cis-epoxysuccinate hydrolases (CESHs), have been utilized for commercial production of enantiomerically pure L(+)- and D(-)-tartaric acids for decades. However, the stereo-catalytic mechanism of CESH producing L(+)-tartaric acid (CESH[L]) remains unclear. Herein, the crystal structures of two CESH[L]s in ligand-free, product-complexed, and catalytic intermediate forms were determined. These structures revealed the unique specific binding mode for the mirror-symmetric substrate, an active catalytic triad consisting of Asp-His-Glu, and an arginine providing a proton to the oxirane oxygen to facilitate the epoxide ring-opening reaction, which has been pursued for decades. These results provide the structural basis for the rational engineering of these industrial biocatalysts.
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Affiliation(s)
- Sheng Dong
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China; Shandong Energy Institute, Qingdao, China; Qingdao New Energy Shandong Laboratory, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China
| | - Jinsong Xuan
- Department of Bioscience and Bioengineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, China
| | - Yingang Feng
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China; Shandong Energy Institute, Qingdao, China; Qingdao New Energy Shandong Laboratory, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Qiu Cui
- CAS Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China; Shandong Energy Institute, Qingdao, China; Qingdao New Energy Shandong Laboratory, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China.
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2
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Shi QQ, Gao Y, Lu J, Zhou L, Qiu MH. Two new triterpenoid-chromone hybrids from the rhizomes of Actaea cimicifuga L. (syn. Cimicifuga foetida L.) and their cytotoxic activities. Nat Prod Res 2020; 36:193-199. [PMID: 32498562 DOI: 10.1080/14786419.2020.1775228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Two new triterpenoid-chromone hybrids, cimitriteromones H (1) and I (2), along with two known analogues (3, 4) were isolated from the phytochemical research on the n-butyl alcohol extracts of Actaea cimicifuga rhizomes. The new compounds were elucidated by spectroscopic experiments and chemical method. The cytotoxic activities of the isolated compounds were tested on A-549/Taxol cell line. Cimitriteromone I (2) showed cytotoxicity with IC50 value of 27.14 ± 1.38 μM comparable to positive control group cisplatin (IC50 value of 25.80 ± 1.15 μM).
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Affiliation(s)
- Qiang-Qiang Shi
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, China.,University of the Chinese Academy of Sciences, Beijing, China.,Yunnan Key Laboratory of Natural Medicinal Chemistry Chinese Academy of Sciences, Yunnan, China
| | - Ya Gao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, China.,University of the Chinese Academy of Sciences, Beijing, China.,Yunnan Key Laboratory of Natural Medicinal Chemistry Chinese Academy of Sciences, Yunnan, China
| | - Jing Lu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, China.,University of the Chinese Academy of Sciences, Beijing, China.,Yunnan Key Laboratory of Natural Medicinal Chemistry Chinese Academy of Sciences, Yunnan, China
| | - Lin Zhou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, China.,University of the Chinese Academy of Sciences, Beijing, China
| | - Ming-Hua Qiu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Yunnan, China.,University of the Chinese Academy of Sciences, Beijing, China.,Yunnan Key Laboratory of Natural Medicinal Chemistry Chinese Academy of Sciences, Yunnan, China
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3
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Christmann M, Hu J, Kitamura M, Stoltz B. Tetrahedron reports on organic chemistry. Tetrahedron 2015. [DOI: 10.1016/s0040-4020(15)00744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Fibinger MPC, Davids T, Böttcher D, Bornscheuer UT. A selection assay for haloalkane dehalogenase activity based on toxic substrates. Appl Microbiol Biotechnol 2015; 99:8955-62. [DOI: 10.1007/s00253-015-6686-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Revised: 05/06/2015] [Accepted: 05/08/2015] [Indexed: 12/30/2022]
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5
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Pitts CR, Lectka T. Chemical Synthesis of β-Lactams: Asymmetric Catalysis and Other Recent Advances. Chem Rev 2014; 114:7930-53. [DOI: 10.1021/cr4005549] [Citation(s) in RCA: 217] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cody Ross Pitts
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Thomas Lectka
- Department of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
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6
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Tischler D, Kaschabek SR. Microbial Styrene Degradation: From Basics to Biotechnology. ENVIRONMENTAL SCIENCE AND ENGINEERING 2012. [DOI: 10.1007/978-3-642-23789-8_3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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8
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Swain A, Turton J, Scudamore C, Maguire D, Pereira I, Freitas S, Smyth R, Munday M, Stamp C, Gandhi M, Sondh S, Ashall H, Francis I, Woodfine J, Bowles J, York M. Nephrotoxicity of hexachloro-1:3-butadiene in the male Hanover Wistar rat; correlation of minimal histopathological changes with biomarkers of renal injury. J Appl Toxicol 2011; 32:417-28. [DOI: 10.1002/jat.1727] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 07/22/2011] [Accepted: 07/22/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Aubrey Swain
- Clinical Pathology; GlaxoSmithKline Research and Development; Park Road, Ware, Hertfordshire; SG12 0DP; UK
| | - John Turton
- Prostate Cancer Research Centre, Division of Surgery and Interventional Science; University College London; 3rd Floor Research Laboratories, 67 Riding House Street; London; W1W 7EJ; UK
| | - Cheryl Scudamore
- Department of Pathology and Infectious Diseases; Royal Veterinary College; Hawkshead Lane, North Mymms, Hatfield, Hertfordshire; AL9 7TA; UK
| | - David Maguire
- Department of Pathology and Infectious Diseases; Royal Veterinary College; Hawkshead Lane, North Mymms, Hatfield, Hertfordshire; AL9 7TA; UK
| | - Ines Pereira
- Department of Pharmaceutical and Biological Chemistry, The School of Pharmacy; University of London; 29/39 Brunswick Square; London; WC1N 1AX; UK
| | - Sofia Freitas
- Department of Pharmaceutical and Biological Chemistry, The School of Pharmacy; University of London; 29/39 Brunswick Square; London; WC1N 1AX; UK
| | - Rosemary Smyth
- Department of Pharmaceutical and Biological Chemistry, The School of Pharmacy; University of London; 29/39 Brunswick Square; London; WC1N 1AX; UK
| | - Michael Munday
- Department of Pharmaceutical and Biological Chemistry, The School of Pharmacy; University of London; 29/39 Brunswick Square; London; WC1N 1AX; UK
| | - Clare Stamp
- Clinical Pathology; GlaxoSmithKline Research and Development; Park Road, Ware, Hertfordshire; SG12 0DP; UK
| | - Mitul Gandhi
- Clinical Pathology; GlaxoSmithKline Research and Development; Park Road, Ware, Hertfordshire; SG12 0DP; UK
| | - Surjit Sondh
- Clinical Pathology; GlaxoSmithKline Research and Development; Park Road, Ware, Hertfordshire; SG12 0DP; UK
| | - Holly Ashall
- Clinical Pathology; GlaxoSmithKline Research and Development; Park Road, Ware, Hertfordshire; SG12 0DP; UK
| | - Ian Francis
- Histotechnology; GlaxoSmithKline Research and Development; Park Road, Ware, Hertfordshire; SG12 0DP; UK
| | - Jennifer Woodfine
- Histotechnology; GlaxoSmithKline Research and Development; Park Road, Ware, Hertfordshire; SG12 0DP; UK
| | - John Bowles
- Histotechnology; GlaxoSmithKline Research and Development; Park Road, Ware, Hertfordshire; SG12 0DP; UK
| | - Malcolm York
- Clinical Pathology; GlaxoSmithKline Research and Development; Park Road, Ware, Hertfordshire; SG12 0DP; UK
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9
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Montersino S, Tischler D, Gassner GT, van Berkel WJH. Catalytic and Structural Features of Flavoprotein Hydroxylases and Epoxidases. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100384] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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SENTHILNATHAN DHURAIRAJAN, TAMILMANI VENKATACHALAM, VENUVANALINGAM PONNAMBALAM. Biocatalysis of azidolysis of epoxides: Computational evidences on the role of halohydrin dehalogenase (HheC). J CHEM SCI 2011. [DOI: 10.1007/s12039-011-0082-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2011. [DOI: 10.1016/s0040-4020(11)00770-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Grulich M, Maršálek J, Kyslík P, Štěpánek V, Kotik M. Production, enrichment and immobilization of a metagenome-derived epoxide hydrolase. Process Biochem 2011. [DOI: 10.1016/j.procbio.2010.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2010. [DOI: 10.1016/s0040-4020(10)01735-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Bala N, Chimni SS. Recent developments in the asymmetric hydrolytic ring opening of epoxides catalysed by microbial epoxide hydrolase. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.11.013] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Enantioselective Hydrolysis of Glycidyl Methylphenyl Ethers by Botryosphaeria Dothidea ZJUZQ007: Effect of Substitution Pattern on Enantioselectivity. Appl Biochem Biotechnol 2010; 164:125-32. [DOI: 10.1007/s12010-010-9120-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Accepted: 10/21/2010] [Indexed: 11/27/2022]
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16
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Kotik M, Štěpánek V, Grulich M, Kyslík P, Archelas A. Access to enantiopure aromatic epoxides and diols using epoxide hydrolases derived from total biofilter DNA. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2010.01.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Chang D, Zhang J, Witholt B, Li Z. Chemical and Enzymatic Synthetic Methods for Asymmetric Oxidation of the C–C Double Bond. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.1080/10242420410001710065] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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Kotik M, Štěpánek V, Marešová H, Kyslík P, Archelas A. Environmental DNA as a source of a novel epoxide hydrolase reacting with aliphatic terminal epoxides. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2008.05.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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XU H, MENG QH, ZHANG ZG. Asymmetric Hydrogenation ofα-Hydroxy Ketones: A Reaction Sensitive toward Electronic Effect of Substrates. CHINESE J CHEM 2008. [DOI: 10.1002/cjoc.200890299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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21
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Tetrahedron reports on organic chemistry. Tetrahedron 2008. [DOI: 10.1016/s0040-4020(08)00897-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Jia X, Wang Z, Li Z. Preparation of (S)-2-, 3-, and 4-chlorostyrene oxides with the epoxide hydrolase from Sphingomonas sp. HXN-200. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2007.12.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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Tetrahedron reports on organic chemistry. Tetrahedron 2007. [DOI: 10.1016/s0040-4020(07)01371-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Ivarsson Y, Norrgård MA, Hellman U, Mannervik B. Engineering the enantioselectivity of glutathione transferase by combined active-site mutations and chemical modifications. Biochim Biophys Acta Gen Subj 2007; 1770:1374-81. [PMID: 17689871 DOI: 10.1016/j.bbagen.2007.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2007] [Revised: 06/03/2007] [Accepted: 06/05/2007] [Indexed: 11/22/2022]
Abstract
Based on the crystal structure of human glutathione transferase M1-1, cysteine residues were introduced in the substrate-binding site of a Cys-free mutant of the enzyme, which were subsequently alkylated with 1-iodoalkanes. By different combinations of site-specific mutations and chemical modifications of the enzyme the enantioselectivity in the conjugation of glutathione with the epoxide-containing substrates 1-phenylpropylene oxide and styrene-7,8-oxide were enhanced up to 9- and 10-fold. The results also demonstrate that the enantioselectivity can be diminished, or even reversed, by suitable modifications, which can be valuable under some conditions. The redesign of the active-site structure for enhanced or diminished enantioselectivities have divergent requirements for different epoxides, calling for a combinatorial approach involving alternative mutations and chemical modifications to optimize the enantioselectivity for a targeted substrate. This approach outlines a general method of great potential for fine-tuning substrate specificity and tailoring stereoselectivity of recombinant enzymes.
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Affiliation(s)
- Ylva Ivarsson
- Department of Biochemistry and Organic Chemistry, Uppsala University, Biomedical Center, Box 576, SE-751 23 Uppsala, Sweden
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25
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Kotik M, Stepánek V, Kyslík P, Maresová H. Cloning of an epoxide hydrolase-encoding gene from Aspergillus niger M200, overexpression in E. coli, and modification of activity and enantioselectivity of the enzyme by protein engineering. J Biotechnol 2007; 132:8-15. [PMID: 17875334 DOI: 10.1016/j.jbiotec.2007.08.014] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2007] [Revised: 07/18/2007] [Accepted: 08/01/2007] [Indexed: 11/19/2022]
Abstract
The gene encoding an epoxide hydrolase from Aspergillus niger M200 has been cloned and its sequence determined. The gene is interrupted by seven introns, one exon being only nine nucleotides long. The non-coding 5'- and 3'-regions of the mRNA are composed of 47 and 76 nucleotides, respectively. Overexpression of the fungal epoxide hydrolase in E. coli TOP10 has led to a 15-fold increase in specific activity (compared to the wild-type strain). Saturation mutagenesis at codon 217 resulted in the discovery of nine enzyme variants showing in several cases profound differences in activity and enantioselectivity towards various epoxides when compared to the data of the wild-type enzyme. The site 217 is located at the entrance of the tunnel that provides the substrate with access to the active site. The exchange of Ala at this position for Cys has led to a doubled enantioselectivity (E-value of 5.0) towards benzyl glycidyl ether. The same substitution resulted in a threefold-enhanced activity of the enzyme towards allyl glycidyl ether and styrene oxide without affecting enantioselectivity. The variant A217L showed an enhanced enantioselectivity towards tert-butyl glycidyl ether reaching an E-value of 100 (from 60 for the wild-type enzyme). Replacement of A217 by Val has led to higher activity towards allyl glycidyl ether by a factor of six. The substitutions Ala-->Glu and Ala-->Gln increased the enantioselectivity towards allyl glycidyl ether and styrene oxide by over 50% to E-values of 10 and 16, respectively. The study underlines that single amino acid exchanges in the substrate tunnel region can lead to significant improvements in enantioselectivity and activity of the epoxide hydrolase from A. niger M200.
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Affiliation(s)
- Michael Kotik
- Laboratory of Enzyme Technology, Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídenská 1083, 142 20 Prague 4, Czech Republic.
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26
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Tetrahedron reports on organic chemistry. Tetrahedron 2007. [DOI: 10.1016/s0040-4020(07)00834-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Tetrahedron reports on organic chemistry. Tetrahedron 2007. [DOI: 10.1016/s0040-4020(07)00205-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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28
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Chiappe C, Leandri E, Hammock BD, Morisseau C. Effect of ionic liquids on epoxide hydrolase-catalyzed synthesis of chiral 1,2-diols. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2007; 2007:162-168. [PMID: 18160974 PMCID: PMC2153531 DOI: 10.1039/b612106c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Ionic liquids (ILs) offer new possibilities for epoxide hydrolase (EH) catalyzed resolution of epoxides and for synthesis of chiral 1,2-diols. Soluble EHs from cress and mouse (csEH and msEH) and microsomal EH from rat (rmEH) were tested in several ILs. For all the enzymes tested, higher enantioselectivities were obtained in [bmim][N(Tf)(2)] and [bmim][PF(6)]. The optimized amount of water for EH activity in these ILs was established. Classical problems arising from low solubility of epoxides in water or from the high tendency of the oxirane ring to undergo chemical hydrolysis were avoided using these new media.
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Affiliation(s)
- Cinzia Chiappe
- Dipartimento di Chimica Bioorganica e Biofarmacia, via Bonanno 33, 56126, Pisa, Italy. E-mail: ; Fax: +39 50 2219660; Tel: +39 50 2219669
| | - Elsa Leandri
- Dipartimento di Chimica Bioorganica e Biofarmacia, via Bonanno 33, 56126, Pisa, Italy. E-mail: ; Fax: +39 50 2219660; Tel: +39 50 2219669
| | - Bruce D. Hammock
- Department of Entomology & Cancer Research Center, University of California, Davis, CA, 95616, USA. E-mail:
| | - Christophe Morisseau
- Department of Entomology & Cancer Research Center, University of California, Davis, CA, 95616, USA. E-mail:
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Lectka T, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2006. [DOI: 10.1016/s0040-4020(06)01801-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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30
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Lectka T, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2006. [DOI: 10.1016/s0040-4020(06)00771-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Xu W, Xu JH, Pan J, Gu Q, Wu XY. Enantioconvergent Hydrolysis of Styrene Epoxides by Newly Discovered Epoxide Hydrolases in Mung Bean. Org Lett 2006; 8:1737-40. [PMID: 16597154 DOI: 10.1021/ol060407u] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] Two novel epoxide hydrolases were discovered in mung bean (Phaseolus radiatus L.) for the first time, either of which can catalyze enantioconvergent hydrolysis of styrene epoxides. Their regioselectivity coefficients are more than 90% for the p-nitrostyrene oxide. Furthermore, the crude mung bean powder was also shown to be a cheap and practical biocatalyst, allowing a one-step asymmetric synthesis of chiral (R)-diols from racemic epoxides, in up to >99% ee and 68.7% overall yield (after recrystallization).
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Affiliation(s)
- Wei Xu
- Laboratory of Biocatalysis and Bioprocessing, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
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Kas’yan LI, Kas’yan AO, Okovityi SI. Reactions of alicyclic epoxy compounds with oxygen-centered nucleophiles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2006. [DOI: 10.1134/s1070428006030018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Liu Z, Michel J, Wang Z, Witholt B, Li Z. Enantioselective hydrolysis of styrene oxide with the epoxide hydrolase of Sphingomonas sp. HXN-200. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.tetasy.2005.11.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Liu Y, Sha Q, Wu S, Wang J, Yang L, Sun W. Enzymatic resolution of racemic phenyloxirane by a novel epoxide hydrolase from Aspergillus niger SQ-6 and its fed-batch fermentation. J Ind Microbiol Biotechnol 2005; 33:274-82. [PMID: 16320035 DOI: 10.1007/s10295-005-0062-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2005] [Accepted: 10/27/2005] [Indexed: 10/25/2022]
Abstract
A microorganism with the ability to catalyze the resolution of racemic phenyloxirane was isolated and identified as Aspergillus niger SQ-6. Chiral capillary electrophoresis was successfully applied to separate both phenyloxirane and phenylethanediol. The epoxide hydrolase (EH) involved in this resolution process was (R)-stereospecific and constitutively expressed. When whole cells were used during the biotransformation process, the optimum temperature and pH for stereospecific vicinal diol production were 35 degrees C and 7.0, respectively. After a 24-h conversion, the enantiomer excess of (R)-phenylethanediol produced was found to be >99%, with a conversion rate of 56%. In fed-batch fermentations at 30 degrees C for 44 h, glycerol (20 g L(-1)) and corn steep liquor (CSL) (30 g L(-1)) were chosen as the best initial carbon and nitrogen sources, and EH production was markedly improved by pulsed feeding of sucrose (2 g L(-1) h(-1)) and continuous feeding of CSL (1 g L(-1) h(-1)) at a fermentation time of 28 h. After optimization, the maximum dry cell weight achieved was 24.5+/-0.8 g L(-1); maximum EH production was 351.2+/-13.1 U L(-1) with a specific activity of 14.3+/-0.5 U g(-1). Partially purified EH exhibited a temperature optimum at 37 degrees C and pH optimum at 7.5 in 0.1 M phosphate buffer. This study presents the first evidence for the existence of a predicted epoxide racemase, which might be important in the synthesis of epoxide intermediates.
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Affiliation(s)
- Yanbin Liu
- State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beiyitiao 13, Zhongguancun, Haidian, Beijing, 100080, People's Republic of China
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Choudhary MI, Gondal HY, Abbaskhan A. Microbial Transformations of Gelomulide G: A Member of the Rare Class of Diterpene Lactones. Chem Biodivers 2005; 2:1401-8. [PMID: 17191941 DOI: 10.1002/cbdv.200590112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Microbial transformation of gelomulide G (3beta,6beta-diacetoxy-8beta,14beta-epoxyabiet-13(15)-en-16,12-olide, 1) was carried out. Incubation of 1 with Aspergillus niger afforded two new metabolites, 3beta,6beta-diacetoxy-8beta,14beta-dihydroxyabiet-13(15)-en-16,12-olide (2) and 3beta,6beta-diacetoxy-14beta-hydroxyabieta-8(9),13(15)-dien-16,12-olide (3). While Cunninghamella elegans afforded the 14-epimer of 2, i.e., 3beta,6beta-diacetoxy-8beta,14alpha-dihydroxyabiet-13(15)-en-16,12-olide (4), along with 3beta-acetoxy-6beta-hydroxy-8beta,14beta-epoxyabiet-13(15)-en-16,12-olide (5). The structures of the transformed products 2-5 were deduced to be new on the basis of MS and NMR data.
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Affiliation(s)
- M Iqbal Choudhary
- H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan.
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Rui L, Cao L, Chen W, Reardon KF, Wood TK. Protein engineering of epoxide hydrolase from Agrobacterium radiobacter AD1 for enhanced activity and enantioselective production of (R)-1-phenylethane-1,2-diol. Appl Environ Microbiol 2005; 71:3995-4003. [PMID: 16000814 PMCID: PMC1169048 DOI: 10.1128/aem.71.7.3995-4003.2005] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
DNA shuffling and saturation mutagenesis of positions F108, L190, I219, D235, and C248 were used to generate variants of the epoxide hydrolase of Agrobacterium radiobacter AD1 (EchA) with enhanced enantioselectivity and activity for styrene oxide and enhanced activity for 1,2-epoxyhexane and epoxypropane. EchA variant I219F has more than fivefold-enhanced enantioselectivity toward racemic styrene oxide, with the enantiomeric ratio value (E value) for the production of (R)-1-phenylethane-1,2-diol increased from 17 for the wild-type enzyme to 91, as well as twofold-improved activity for the production of (R)-1-phenylethane-1,2-diol (1.96 +/- 0.09 versus 1.04 +/- 0.07 micromol/min/mg for wild-type EchA). Computer modeling indicated that this mutation significantly alters (R)-styrene oxide binding in the active site. Another three variants from EchA active-site engineering, F108L/C248I, I219L/C248I, and F108L/I219L/C248I, also exhibited improved enantioselectivity toward racemic styrene oxide in favor of production of the corresponding diol in the (R) configuration (twofold enhancement in their E values). Variant F108L/I219L/C248I also demonstrated 10-fold- and 2-fold-increased activity on 5 mM epoxypropane (24 +/- 2 versus 2.4 +/- 0.3 micromol/min/mg for the wild-type enzyme) and 5 mM 1,2-epoxyhexane (5.2 +/- 0.5 versus 2.6 +/- 0.0 micromol/min/mg for the wild-type enzyme). Both variants L190F (isolated from a DNA shuffling library) and L190Y (created from subsequent saturation mutagenesis) showed significantly enhanced activity for racemic styrene oxide hydrolysis, with 4.8-fold (8.6 +/- 0.3 versus 1.8 +/- 0.2 micromol/min/mg for the wild-type enzyme) and 2.7-fold (4.8 +/- 0.8 versus 1.8 +/- 0.2 micromol/min/mg for the wild-type enzyme) improvements, respectively. L190Y also hydrolyzed 1,2-epoxyhexane 2.5 times faster than the wild-type enzyme.
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Affiliation(s)
- Lingyun Rui
- Department of Chemical Engineering and Molecular and Cell Biology, University of Connecticut, Storrs, CT 06269-3222, USA
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Reetz MT, Torre C, Eipper A, Lohmer R, Hermes M, Brunner B, Maichele A, Bocola M, Arand M, Cronin A, Genzel Y, Archelas A, Furstoss R. Enhancing the enantioselectivity of an epoxide hydrolase by directed evolution. Org Lett 2005; 6:177-80. [PMID: 14723522 DOI: 10.1021/ol035898m] [Citation(s) in RCA: 131] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] The epoxide hydrolase (EH) from Aspergillus niger, which shows a selectivity factor of only E = 4.6 in the hydrolytic kinetic resolution of glycidyl phenyl ether, has been subjected to directed evolution for the purpose of enhancing enantioselectivity. After only one round of error-prone polymerase chain reaction (epPCR), enantioselectivity was more than doubled (E = 10.8). The improved mutant enzyme contains three amino acid exchanges, two of which are spatially far from the catalytically active center.
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Affiliation(s)
- Manfred T Reetz
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim/Ruhr, Germany, Institut für Pharmakologie und Toxikologie, Universität Würzburg, Versbacher Strasse 9, 97078 Würzburg, Germany.
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Posner PG, Motherwell PW. Tetrahedron reports on organic chemistry. Tetrahedron 2004. [DOI: 10.1016/s0040-4020(04)01396-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tetrahedron reports on organic chemistry. Tetrahedron 2004. [DOI: 10.1016/s0040-4020(04)00315-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Biocatalysis in ionic liquids: the stereoconvergent hydrolysis of trans-β-methylstyrene oxide catalyzed by soluble epoxide hydrolase. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcatb.2003.12.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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41
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Posner PG, Motherwell PW. Tetrahedron reports on organic chemistry. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01884-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Posner PG, Motherwell PW. Tetrahedron reports on organic chemistry. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01130-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pan J, Xu JH. Marked enhancement of epoxide hydrolase production from Trichosporon loubierii ECU1040 by substrate induction and fed-batch fermentation. Enzyme Microb Technol 2003. [DOI: 10.1016/s0141-0229(03)00159-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Facile Synthesis of Enantiopure 1,2-Diols and Terminal Epoxides from Chiral β-Hydroxy Sulfides. B KOREAN CHEM SOC 2003. [DOI: 10.5012/bkcs.2003.24.7.1023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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45
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Posner PG, Motherwell PW. Tetrahedron reports on organic chemistry. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00841-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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46
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Tetrahedron reports on organic chemistry. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00323-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Schiøtt B, Bruice TC. Reaction mechanism of soluble epoxide hydrolase: insights from molecular dynamics simulations. J Am Chem Soc 2002; 124:14558-70. [PMID: 12465965 DOI: 10.1021/ja021021r] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular dynamics simulations have been performed to gain insights into the catalytic mechanism of the hydrolysis of epoxides to vicinal diols by soluble epoxide hydrolase (sEH). The binding of a substrate, 1S,2S-trans-methylstyrene oxide, was studied in two conformations in the active site of the enzyme. It was found that only one is likely to be found in the active enzyme. In the preferred conformation the phenyl group of the substrate is pi-sandwiched between two aromatic residues, Tyr381 and His523, whereas the other conformation is pi-stacked with only one aromatic residue, Trp334. Two simulations were carried out to 1 ns for each conformation to evaluate the protonation state of active site residue His523. It was found that a protonated histidine is essential for keeping the active site from being disrupted. Long time scale, 4 ns, molecular dynamics simulation was done for the structure with the most likely combination of binding conformation and protonation state of His523. Near Attack Conformers (NACs) are present 5.3% of the time and nucleophilic attack on either epoxide carbon atom, approximately 75% on C(1) and approximately 25% on C(2), is found. A maximum of one hydrogen bond between the epoxide oxygen and either of the active site tyrosines, Tyr465 and Tyr381, is present, in agreement with experimental mutagenesis results that reveal a slight loss in activity if one tyrosine is mutated and essential loss of all activity upon double mutation of the two tyrosines in question. It was found that a hydrogen bond from Tyr465 to the substrate oxygen is essential for controlling the regioselectivity of the reaction. Furthermore, a relationship between the presence of this hydrogen bond and the separation of reactants was found. Two groups of amino acid segments were identified each as moving collectively. Furthermore, an overall anti-correlation was found between the movements of these two individually collectively moving groups, made up by parts of the cap-region, including the two tyrosines, and the site of the catalytic triad, respectively. This overall anti-correlated collective domain motion is, perhaps, involved in the conversion of E.NAC to E.TS.
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Affiliation(s)
- Birgit Schiøtt
- Department of Chemistry, Aarhus University, 8000 Aarhus, Denmark.
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Posner G, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)01503-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lutje Spelberg JH, Tang L, van Gelder M, Kellogg RM, Janssen DB. Exploration of the biocatalytic potential of a halohydrin dehalogenase using chromogenic substrates. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0957-4166(02)00222-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
Epoxide hydrolases from microbial sources are highly versatile biocatalysts for the asymmetric hydrolysis of epoxides on a preparative scale. Besides kinetic resolution, which furnishes the corresponding vicinal diol and remaining non-hydrolysed epoxide in nonracemic form, enantioconvergent processes are possible: these are highly attractive as they lead to the formation of a single enantiomeric diol from a racemic oxirane. The data accumulated over recent years reveal a common picture of the substrate structure selectivity pattern of microbial epoxide hydrolases and indicate that substrates of various structural types can be selectively hydrolysed with enzymes from certain microbial sources.
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Affiliation(s)
- A Steinreiber
- Department of Chemistry, Organic and Bio-organic Chemistry, University of Graz, Heinrichstrasse 28, A-8010 Graz, Austria
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