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Li A, Wang T, Tian Q, Yang X, Yin D, Qin Y, Zhang L. Single-Point Mutant Inverts the Stereoselectivity of a Carbonyl Reductase toward β-Ketoesters with Enhanced Activity. Chemistry 2021; 27:6283-6294. [PMID: 33475219 DOI: 10.1002/chem.202005195] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/29/2020] [Indexed: 01/06/2023]
Abstract
Enzyme stereoselectivity control is still a major challenge. To gain insight into the molecular basis of enzyme stereo-recognition and expand the source of antiPrelog carbonyl reductase toward β-ketoesters, rational enzyme design aiming at stereoselectivity inversion was performed. The designed variant Q139G switched the enzyme stereoselectivity toward β-ketoesters from Prelog to antiPrelog, providing corresponding alcohols in high enantiomeric purity (89.1-99.1 % ee). More importantly, the well-known trade-off between stereoselectivity and activity was not found. Q139G exhibited higher catalytic activity than the wildtype enzyme, the enhancement of the catalytic efficiency (kcat /Km ) varied from 1.1- to 27.1-fold. Interestingly, the mutant Q139G did not lead to reversed stereoselectivity toward aromatic ketones. Analysis of enzyme-substrate complexes showed that the structural flexibility of β-ketoesters and a newly formed cave together facilitated the formation of the antiPrelog-preferred conformation. In contrast, the relatively large and rigid structure of the aromatic ketones prevents them from forming the antiPrelog-preferred conformation.
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Affiliation(s)
- Aipeng Li
- School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, China.,Research & Development Institute in Shenzhen, Northwestern Polytechnical University, 518057, Shenzhen, China
| | - Ting Wang
- School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, China.,Research & Development Institute in Shenzhen, Northwestern Polytechnical University, 518057, Shenzhen, China
| | - Qing Tian
- School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, China.,Research & Development Institute in Shenzhen, Northwestern Polytechnical University, 518057, Shenzhen, China
| | - Xiaohong Yang
- Department of Chemistry, University of California, One Shields Avenue, Davis, California, 95616, United States
| | - Dongming Yin
- School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, China.,Research & Development Institute in Shenzhen, Northwestern Polytechnical University, 518057, Shenzhen, China
| | - Yong Qin
- School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, China
| | - Lianbing Zhang
- School of Life Sciences, Northwestern Polytechnical University, 710072, Xi'an, China.,Research & Development Institute in Shenzhen, Northwestern Polytechnical University, 518057, Shenzhen, China
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2
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Rekis T. Crystallization of chiral molecular compounds: what can be learned from the Cambridge Structural Database? ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS 2020; 76:307-315. [DOI: 10.1107/s2052520620003601] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/10/2020] [Indexed: 11/11/2022]
Abstract
A detailed study on chiral compound structures found in the Cambridge Structural Database (CSD) is presented. Solvates, salts and co-crystals have intentionally been excluded, in order to focus on the most basic structures of single enantiomers, scalemates and racemates. Similarity between the latter and structures of achiral monomolecular compounds has been established and utilized to arrive at important conclusions about crystallization of chiral compounds. For example, the fundamental phenomenon of conglomerate formation and, in particular, their frequency of occurrence is addressed. In addition, rarely occurring kryptoracemates and scalemic compounds (anomalous racemates) are discussed. Finally, an extended search of enantiomer solid solutions in the CSD is performed to show that there are up to 1800 instances most probably hiding among the deposited crystal structures, while only a couple of dozen have been previously known and studied.
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3
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Clevers S, Coquerel G. Kryptoracemic compound hunting and frequency in the Cambridge Structural Database. CrystEngComm 2020. [DOI: 10.1039/d0ce00303d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Determination of kryptoracemic compound frequency in the Cambridge Structural Database using CCDC Python API script.
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Affiliation(s)
- Simon Clevers
- Normandie Université
- Laboratoire SMS-EA3233
- Université de Rouen Normandie
- Mont Saint Aignan
- France
| | - Gérard Coquerel
- Normandie Université
- Laboratoire SMS-EA3233
- Université de Rouen Normandie
- Mont Saint Aignan
- France
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4
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Barbas R, Bofill L, de Sande D, Font-Bardia M, Prohens R. Crystal engineering of nutraceutical phytosterols: new cocrystal solid solutions. CrystEngComm 2020. [DOI: 10.1039/d0ce00704h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A cocrystal screening of solid solutions of three phytosterols (β-sitosterol, campesterol, stigmasterol) reveals that cocrystal solid solutions are enriched with β-sitosterol with respect to stigmasterol, a natural product with cytotoxicity concerns.
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Affiliation(s)
- Rafael Barbas
- Unitat de Polimorfisme i Calorimetria
- Centres Científics i Tecnològics
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Lídia Bofill
- Center for Intelligent Research in Crystal Engineering S.L
- Palma de Mallorca
- Spain
| | - Dafne de Sande
- Unitat de Polimorfisme i Calorimetria
- Centres Científics i Tecnològics
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Mercè Font-Bardia
- Unitat de Difracció de Raigs X
- Centres Científics i Tecnològics
- Universitat de Barcelona
- Spain
| | - Rafel Prohens
- Unitat de Polimorfisme i Calorimetria
- Centres Científics i Tecnològics
- Universitat de Barcelona
- 08028 Barcelona
- Spain
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5
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Thomas SP, Grosjean A, Flematti GR, Karton A, Sobolev AN, Edwards AJ, Piltz RO, Iversen BB, Koutsantonis GA, Spackman MA. Investigation of an Unusual Crystal Habit of Hydrochlorothiazide Reveals Large Polar Enantiopure Domains and a Possible Crystal Nucleation Mechanism. Angew Chem Int Ed Engl 2019; 58:10255-10259. [PMID: 31136063 DOI: 10.1002/anie.201905085] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Indexed: 11/09/2022]
Abstract
The observation of an unusual crystal habit in the common diuretic drug hydrochlorothiazide (HCT), and identification of its subtle conformational chirality, has stimulated a detailed investigation of its crystalline forms. Enantiomeric conformers of HCT resolve into an unusual structure of conjoined enantiomorphic twin crystals comprising enantiopure domains of opposite chirality. The purity of the domains and the chiral molecular conformation are confirmed by spatially revolved synchrotron micro-XRD experiments and neutron diffraction, respectively. Macroscopic inversion twin symmetry observed between the crystal wings suggests a pseudoracemic structure that is not a solid solution or a layered crystal structure, but an unusual structural variant of conglomerates and racemic twins. Computed interaction energies for molecular pairs in the racemic and enantiopure polymorphs of HCT, and the observation of large opposing unit-cell dipole moments for the enantiopure domains in these twin crystals, suggest a plausible crystal nucleation mechanism for this unusual crystal habit.
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Affiliation(s)
- Sajesh P Thomas
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia.,Department of Chemistry and iNano, Aarhus University, 8000, Aarhus C, Denmark
| | - Arnaud Grosjean
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
| | - Gavin R Flematti
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
| | - Amir Karton
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
| | - Alexandre N Sobolev
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia, Perth, WA, 6009, Australia
| | - Alison J Edwards
- Australian Centre for Neutron Scattering, ANSTO, Lucas Heights, NSW, 2234, Australia
| | - Ross O Piltz
- Australian Centre for Neutron Scattering, ANSTO, Lucas Heights, NSW, 2234, Australia
| | - Bo B Iversen
- Center for Materials Crystallography, Department of Chemistry, Aarhus University, 8000, Aarhus C, Denmark
| | - George A Koutsantonis
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
| | - Mark A Spackman
- School of Molecular Sciences, University of Western Australia, Perth, WA, 6009, Australia
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6
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Thomas SP, Grosjean A, Flematti GR, Karton A, Sobolev AN, Edwards AJ, Piltz RO, Iversen BB, Koutsantonis GA, Spackman MA. Investigation of an Unusual Crystal Habit of Hydrochlorothiazide Reveals Large Polar Enantiopure Domains and a Possible Crystal Nucleation Mechanism. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sajesh P. Thomas
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
- Department of Chemistry and iNano Aarhus University 8000 Aarhus C Denmark
| | - Arnaud Grosjean
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
| | - Gavin R. Flematti
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
| | - Amir Karton
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
| | - Alexandre N. Sobolev
- Centre for Microscopy, Characterisation and Analysis University of Western Australia Perth WA 6009 Australia
| | - Alison J. Edwards
- Australian Centre for Neutron Scattering ANSTO Lucas Heights NSW 2234 Australia
| | - Ross O. Piltz
- Australian Centre for Neutron Scattering ANSTO Lucas Heights NSW 2234 Australia
| | - Bo B. Iversen
- Center for Materials Crystallography Department of Chemistry Aarhus University 8000 Aarhus C Denmark
| | | | - Mark A. Spackman
- School of Molecular Sciences University of Western Australia Perth WA 6009 Australia
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7
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Pinter EN, Cantrell LS, Day GM, Wheeler KA. Pasteur's tartaramide/malamide quasiracemates: new entries and departures from near inversion symmetry. CrystEngComm 2018. [DOI: 10.1039/c8ce00791h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reinvestigating Pasteur's 1853 quasiracemates has led to unexpected departures from centrosymmetric crystal packing and new insight into the role of molecular shape to molecular assembly.
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Affiliation(s)
| | | | - Graeme M. Day
- School of Chemistry
- University of Southampton
- Southampton
- UK
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8
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Cui Z, Zhou L, Qin B, Zhou B, Zhang X, Li W, Zhang J. Selective chiral symmetry breaking and luminescence sensing of a Zn(ii) metal–organic framework. Dalton Trans 2018; 47:7934-7940. [DOI: 10.1039/c8dt00939b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The non-random handedness excess is observed in a chiral metal–organic framework [(CH3)2NH2]5[Zn1.5(Zn3O)(TATAT)2]·9DMF·17H2O (1, 1P ≫ 1M) without any chiral sources.
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Affiliation(s)
- Zheng Cui
- Advanced Energy Materials Research Center
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Lei Zhou
- Advanced Energy Materials Research Center
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Bowen Qin
- Advanced Energy Materials Research Center
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Baolei Zhou
- Advanced Energy Materials Research Center
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Xiaoying Zhang
- Advanced Energy Materials Research Center
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Wenliang Li
- Advanced Energy Materials Research Center
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Jingping Zhang
- Advanced Energy Materials Research Center
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
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9
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Zhang YY, Yu JT, Li B, Li DJ, Gu ZG, Sun XF, Cai HL, Kostakis GE, Peng G. Chiral and kryptoracemic Dy(iii) complexes with field-induced single molecule magnet behavior. CrystEngComm 2018. [DOI: 10.1039/c8ce01052h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Crystalline mode modulation and magnetic relaxation manipulation can be realized by the introduction of different anions into mononuclear Dy(iii) single molecule magnets (SMMs).
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Affiliation(s)
- Ying-Ying Zhang
- Herbert Gleiter Institute of Nanoscience
- School of Materials Science and Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Jing-Tao Yu
- Herbert Gleiter Institute of Nanoscience
- School of Materials Science and Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
| | - Bo Li
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang 473061
- P. R. China
| | - De-Jing Li
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences
- 350002 Fuzhou
- P. R. China
| | - Zhi-Gang Gu
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences
- 350002 Fuzhou
- P. R. China
| | - Xiao-Fan Sun
- Collaborative Innovation Center of Advanced Microstructures
- Lab of Solid State Microstructures
- School of Physics
- Nanjing University
- Nanjing 210093
| | - Hong-Ling Cai
- Collaborative Innovation Center of Advanced Microstructures
- Lab of Solid State Microstructures
- School of Physics
- Nanjing University
- Nanjing 210093
| | - George E. Kostakis
- Department of Chemistry
- School of Life Sciences
- University of Sussex
- Brighton
- UK
| | - Guo Peng
- Herbert Gleiter Institute of Nanoscience
- School of Materials Science and Engineering
- Nanjing University of Science and Technology
- 210094 Nanjing
- P. R. China
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10
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O’ Donoghue R, Peeters D, Rogalla D, Becker HW, Rechmann J, Henke S, Winter M, Devi A. Systematic molecular engineering of Zn-ketoiminates for application as precursors in atomic layer depositions of zinc oxide. Dalton Trans 2016; 45:19012-19023. [DOI: 10.1039/c6dt03571j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Molecular engineering of zinc ketoiminates leads to the optimisation of precursor properties in terms of volatiltiy, reactivity and thermal stability, highly relevant for water assisted ALD of ZnO.
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Affiliation(s)
| | - Daniel Peeters
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- Germany
| | | | | | - Julian Rechmann
- Max-Planck-Institut für Eisenforschung GmbH
- D-40237 Düsseldorf
- Germany
| | | | - Manuela Winter
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- Germany
| | - Anjana Devi
- Inorganic Materials Chemistry
- Ruhr-University Bochum
- Germany
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11
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Rao Khandavilli UB, Lusi M, Bhogala BR, Maguire AR, Stein M, Lawrence SE. Diversity in a simple co-crystal: racemic and kryptoracemic behaviour. Chem Commun (Camb) 2016; 52:8309-12. [DOI: 10.1039/c6cc04148e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first kryptoracemate co-crystal displays structural diversity and a reversible single-crystal to single-crystal transition between two kryptoracemate forms.
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Affiliation(s)
- U. B. Rao Khandavilli
- Department of Chemistry
- Analytical and Biological Chemistry Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Ireland
| | - Matteo Lusi
- Department of Chemical & Environmental Sciences
- University of Limerick
- Limerick
- Ireland
| | - Balakrishna R. Bhogala
- Department of Chemistry
- Analytical and Biological Chemistry Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Ireland
| | - Anita R. Maguire
- Department of Chemistry and School of Pharmacy
- Analytical and Biological Chemistry Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Cork
| | - Matthias Stein
- Molecular Simulations and Design Group
- Max Planck Institute for Dynamics of Complex Technical Systems
- Magdeburg
- Germany
| | - Simon E. Lawrence
- Department of Chemistry
- Analytical and Biological Chemistry Research Facility
- Synthesis and Solid State Pharmaceutical Centre
- University College Cork
- Ireland
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