1
|
Zhang Y, Xie S, Yan M, Ramström O. Enzyme- and ruthenium-catalyzed dynamic kinetic resolution involving cascade alkoxycarbonylations for asymmetric synthesis of 5-Substituted N-Aryloxazolidinones. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
2
|
Kumar R, Kumar V, Mathur D, Kumar R, Kumar A, Prasad AK. Biocatalyst CAL-B catalyzed synthesis of modified nucleosides: An overview. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2018.1554745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Rajesh Kumar
- Department of Chemistry, R.D.S. College, B.R.A. Bihar University, Muzaffarpur, India
| | - Vijay Kumar
- Department of Chemistry, L.S. College, B.R.A. Bihar University, Muzaffarpur, India
| | - Divya Mathur
- Department of Chemistry, University of Delhi, Delhi, India
| | - Ram Kumar
- Department of Chemistry, R.D.S. College, B.R.A. Bihar University, Muzaffarpur, India
| | - Arbind Kumar
- Department of Chemistry, L.S. College, B.R.A. Bihar University, Muzaffarpur, India
| | | |
Collapse
|
3
|
Zhang Y, Gao X, Wang C, Zheng Z, Wang L, Liu J. One-pot stereoselective synthesis of chiral 1, 3-oxathiolane by Trichosporon laibachii lipase: Optimization by response surface methodology integrated a desirability function approach. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.07.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
4
|
Kasrayan A, Bocola M, Sandström AG, Lavén G, Bäckvall JE. Prediction of the Candida antarctica lipase A protein structure by comparative modeling and site-directed mutagenesis. Chembiochem 2016; 8:1409-15. [PMID: 17631665 DOI: 10.1002/cbic.200700179] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A number of model structures of the CalA suggested by comparative modeling were tested by site-directed mutagenesis. Enzyme variants were created where amino acids predicted to play key roles for the lipase activity in the different models were replaced by an inert amino acid (alanine). The results from activity measurements of the overproduced and purified mutant enzymes indicate a structure where the active site consists of amino acid residues Ser184, His366, and Asp334 and in which there is no lid. This model can be used for future targeted modifications of the enzyme to obtain new substrate acceptance, better thermostability, and higher enantioselectivity.
Collapse
Affiliation(s)
- Alex Kasrayan
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm, Sweden
| | | | | | | | | |
Collapse
|
5
|
Akehi M, Kawamoto M, Mandai T. Chiral 1-(1,3-dithian-2-yl) prop-2-en-1-ols: new scaffolds for enantiopure α-hydroxyaldehydes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.05.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
6
|
Begliomini S, Sernissi L, Scarpi D, Occhiato EG. A Short, Chemo-Enzymatic Synthesis of Both Enantiomers oftrans-3-Hydroxypipecolic Acid. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402258] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
7
|
Liu ZQ, Xiang ZW, Shen Z, Wu Q, Lin XF. Enzymatic enantioselective aldol reactions of isatin derivatives with cyclic ketones under solvent-free conditions. Biochimie 2014; 101:156-60. [DOI: 10.1016/j.biochi.2014.01.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 01/07/2014] [Indexed: 10/25/2022]
|
8
|
Fu JP, Gao N, Yang Y, Guan Z, He YH. Ficin-catalyzed asymmetric aldol reactions of heterocyclic ketones with aldehydes. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.06.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
9
|
Gallou F, Seeger-Weibel M, Chassagne P. Development of a Robust and Sustainable Process for Nucleoside Formation. Org Process Res Dev 2013. [DOI: 10.1021/op300335d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fabrice Gallou
- Novartis Pharma AG, Chemical
and Analytical Development, CH-4002 Basel, Switzerland
| | | | - Pierre Chassagne
- Novartis Pharma AG, Chemical
and Analytical Development, CH-4002 Basel, Switzerland
| |
Collapse
|
10
|
Protease-catalysed direct asymmetric Mannich reaction in organic solvent. Sci Rep 2012; 2:761. [PMID: 23094136 PMCID: PMC3478581 DOI: 10.1038/srep00761] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Accepted: 10/02/2012] [Indexed: 11/10/2022] Open
Abstract
We reported the first enzyme-catalysed, direct, three-component asymmetric Mannich reaction using protease type XIV from Streptomyces griseus (SGP) in acetonitrile. Yields of up to 92% with enantioselectivities of up to 88% e.e. and diastereoselectivities of up to 92:8 (syn:anti) were achieved under the optimised conditions. This enzyme's catalytic promiscuity expands the application of this biocatalyst and provides a potential alternative method for asymmetric Mannich reactions.
Collapse
|
11
|
|
12
|
Occhiato EG, Casini A, Guarna A, Scarpi D. Diastereodivergent Synthesis of 4-Hydroxy-2,3-methanopipecolic Acid Derivatives as Conformationally Constrained Homoserine Analogues. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100962] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
13
|
Xu KL, Guan Z, He YH. Acidic proteinase from Aspergillus usamii catalyzed Michael addition of ketones to nitroolefins. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2011.04.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
14
|
Bartali L, Casini A, Guarna A, Occhiato EG, Scarpi D. Enantiodivergent Chemoenzymatic Synthesis of 4-Hydroxypiperidine Alkaloids. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000837] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
15
|
Li N, Zong MH, Wang JF, Liu C, Wu H. Enzymatic enantioselective synthesis of (R)-2-trimethylsilyl-2-hydroxyl-propionitrile by defatted apple seed meal. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20030211025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
16
|
Paravidino M, Sorgedrager MJ, Orru RVA, Hanefeld U. Activity and enantioselectivity of the hydroxynitrile lyase MeHNL in dry organic solvents. Chemistry 2010; 16:7596-604. [PMID: 20486110 PMCID: PMC2970910 DOI: 10.1002/chem.201000487] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Indexed: 11/23/2022]
Abstract
Water concentration affects both the enantioselectivity and activity of enzymes in dry organic media. Its influence has been investigated using the hydrocyanation of benzaldehyde catalyzed by hydroxynitrile lyase cross-linked enzyme aggregate (MeHNL-CLEA) as a model reaction. The enzyme displayed higher enantioselectivity at higher water concentration, thus suggesting a positive effect of enzyme flexibility on selectivity. The activity increased on reducing the solvent water content, but drastic dehydration of the enzyme resulted in a reversible loss of activity.
Collapse
Affiliation(s)
- Monica Paravidino
- Gebouw voor Scheikunde, Afdeling Biotechnologie, Technische Universiteit Delft, Julianalaan 136, 2628 BL Delft, The Netherlands
| | | | | | | |
Collapse
|
17
|
Widmann M, Juhl PB, Pleiss J. Structural classification by the Lipase Engineering Database: a case study of Candida antarctica lipase A. BMC Genomics 2010; 11:123. [PMID: 20170513 PMCID: PMC2841678 DOI: 10.1186/1471-2164-11-123] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2009] [Accepted: 02/19/2010] [Indexed: 11/16/2022] Open
Abstract
Background The Lipase Engineering Database (LED) integrates information on sequence, structure and function of lipases, esterases and related proteins with the α/β hydrolase fold. A new superfamily for Candida antarctica lipase A (CALA) was introduced including the recently published crystal structure of CALA. Since CALA has a highly divergent sequence in comparison to other α/β hydrolases, the Lipase Engineering Database was used to classify CALA in the frame of the already established classification system. This involved the comparison of CALA to similar structures as well as sequence-based comparisons against the content of the LED. Results The new release 3.0 (December 2009) of the Lipase Engineering Database contains 24783 sequence entries for 18585 proteins as well as 656 experimentally determined protein structures, including the structure of CALA. In comparison to the previous release [1] with 4322 protein and 167 structure entries this update represents a significant increase in data volume. By comparing CALA to representative structures from all superfamilies, a structure from the deacetylase superfamily was found to be most similar to the structure of CALA. While the α/β hydrolase fold is conserved in both proteins, the major difference is found in the cap region. Sequence alignments between both proteins show a sequence similarity of only 15%. A multisequence alignment of both protein families was used to create hidden Markov models for the cap region of CALA and showed that the cap region of CALA is unique among all other proteins of the α/β hydrolase fold. By specifically comparing the substrate binding pocket of CALA to other binding pockets of α/β hydrolases, the binding pocket of Candida rugosa lipase was identified as being highly similar. This similarity also applied to the lid of Candida rugosa lipase in comparison to the potential lid of CALA. Conclusion The LED serves as a valuable tool for the systematic analysis of single proteins or protein families. The updated release 3.0 was used for the evaluation of α/β hydrolases. The HTML version of the database with new features is available at http://www.led.uni-stuttgart.de and provides sequences, structures and a set of analysis tools including phylogenetic trees and HMM profiles
Collapse
Affiliation(s)
- Michael Widmann
- Institute of Technical Biochemistry, University of Stuttgart, Allmandring 31, 70569 Stuttgart, Germany
| | | | | |
Collapse
|
18
|
Anderson EM, Larsson KM, Kirk O. One Biocatalyst–Many Applications: The Use of Candida Antarctica B-Lipase in Organic Synthesis. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242429809003198] [Citation(s) in RCA: 554] [Impact Index Per Article: 36.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
19
|
Litjens MJJ, Le KQ, Straathof AJJ, Jongejan JA, Heijnen JJ. Diffusion Limitation Causes Decreased Enantioselectivity of Esterification of 2-Butanol by Immobilized Candida Antarctica Lipase B. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242420109103513] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
20
|
Royter M, Schmidt M, Elend C, Höbenreich H, Schäfer T, Bornscheuer UT, Antranikian G. Thermostable lipases from the extreme thermophilic anaerobic bacteria Thermoanaerobacter thermohydrosulfuricus SOL1 and Caldanaerobacter subterraneus subsp. tengcongensis. Extremophiles 2009; 13:769-83. [PMID: 19579003 PMCID: PMC2757599 DOI: 10.1007/s00792-009-0265-z] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2009] [Accepted: 06/18/2009] [Indexed: 12/02/2022]
Abstract
Two novel genes encoding for heat and solvent stable lipases from strictly anaerobic extreme thermophilic bacteria Thermoanaerobacter thermohydrosulfuricus (LipTth) and Caldanaerobacter subterraneus subsp. tengcongensis (LipCst) were successfully cloned and expressed in E. coli. Recombinant proteins were purified to homogeneity by heat precipitation, hydrophobic interaction, and gel filtration chromatography. Unlike the enzymes from mesophile counterparts, enzymatic activity was measured at a broad temperature and pH range, between 40 and 90°C and between pH 6.5 and 10; the half-life of the enzymes at 75°C and pH 8.0 was 48 h. Inhibition was observed with 4-(2-aminoethyl)-benzenesulfonyl fluoride hydrochloride and phenylmethylsulfonylfluorid indicating that serine and thiol groups play a role in the active site of the enzymes. Gene sequence comparisons indicated very low identity to already described lipases from mesophilic and psychrophilic microorganisms. By optimal cultivation of E. coli Tuner (DE3) cells in 2-l bioreactors, a massive production of the recombinant lipases was achieved (53–2200 U/l) Unlike known lipases, the purified robust proteins are resistant against a large number of organic solvents (up to 99%) and detergents, and show activity toward a broad range of substrates, including triacylglycerols, monoacylglycerols, esters of secondary alcohols, and p-nitrophenyl esters. Furthermore, the enzyme from T. thermohydrosulfuricus is suitable for the production of optically pure compounds since it is highly S-stereoselective toward esters of secondary alcohols. The observed E values for but-3-yn-2-ol butyrate and but-3-yn-2-ol acetate of 21 and 16, respectively, make these enzymes ideal candidates for kinetic resolution of synthetically useful compounds.
Collapse
Affiliation(s)
- Marina Royter
- Institute of Technical Microbiology, Hamburg University of Technology (TUHH), Kasernenstrasse 12, 21073, Hamburg, Germany.
| | | | | | | | | | | | | |
Collapse
|
21
|
Sabbani S, Hedenström E. Control of water activity in lipase catalysed esterification of chiral alkanoic acids. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2008.10.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
22
|
Xia X, Wang C, Yang B, Wang YH, Wang X. Water Activity Dependence of Lipases in Non-aqueous Biocatalysis. Appl Biochem Biotechnol 2009; 159:759-67. [PMID: 19455434 DOI: 10.1007/s12010-009-8618-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2008] [Accepted: 03/16/2009] [Indexed: 12/01/2022]
|
23
|
Regla I, Luviano-Jardón A, Demare P, Hong E, Torres-Gavilán A, López-Munguía A, Castillo E. Chemoenzymatic synthesis of the potential antihypertensive agent (2R,2′S)-β-hydroxyhomometoprolol. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2008.11.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
24
|
Kazlauskas RJ, Bornscheuer UT. Biotransformations with Lipases. BIOTECHNOLOGY 2008:36-191. [PMID: 0 DOI: 10.1002/9783527620906.ch3] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
|
25
|
Ericsson DJ, Kasrayan A, Johansson P, Bergfors T, Sandström AG, Bäckvall JE, Mowbray SL. X-ray Structure of Candida antarctica Lipase A Shows a Novel Lid Structure and a Likely Mode of Interfacial Activation. J Mol Biol 2008; 376:109-19. [DOI: 10.1016/j.jmb.2007.10.079] [Citation(s) in RCA: 141] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2007] [Revised: 10/28/2007] [Accepted: 10/30/2007] [Indexed: 10/22/2022]
|
26
|
Léonard V, Fransson L, Lamare S, Hult K, Graber M. A Water Molecule in the Stereospecificity Pocket ofCandida Antarctica Lipase B Enhances Enantioselectivity towards Pentan-2-ol. Chembiochem 2007; 8:662-7. [PMID: 17328021 DOI: 10.1002/cbic.200600479] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The effect of water activity on enzyme-catalyzed enantioselective transesterification was studied by using a solid/gas reactor. The experimental results were compared with predictions from molecular modelling. The system studied was the esterification of pentan-2-ol with methylpropanoate as acyl donor and lipase B from Candida antarctica as catalyst. The data showed a pronounced water-activity effect on both reaction rate and enantioselectivity. The enantioselectivity increased from 100, at water activity close to zero, to a maximum of 320, at a water activity of 0.2. Molecular modelling revealed how a water molecule could bind in the active site and obstruct the binding of the slowly reacting enantiomer. Measurements of enantioselectivity at different water-activity values and temperatures showed that the water molecule had a high affinity for the stereospecificity pocket of the active site with a binding energy of 9 kJ mol-1, and that it lost all its degrees of rotation, corresponding to an entropic energy of 37 J mol-1 K-1.
Collapse
Affiliation(s)
- Valérie Léonard
- Laboratoire de Biotechnologies et Chimie Bio-Organique, Pôle Sciences et Technologies, FRE CNRS 2766, Bâtiment Marie Curie, Université de la Rochelle, Avenue Michel Crépeau, 17042 La Rochelle, Cedex 1, France
| | | | | | | | | |
Collapse
|
27
|
Broering JM, Hill EM, Hallett JP, Liotta CL, Eckert CA, Bommarius AS. Biocatalytic Reaction And Recycling by Using CO2-Induced Organic–Aqueous Tunable Solvents. Angew Chem Int Ed Engl 2006; 45:4670-3. [PMID: 16789050 DOI: 10.1002/anie.200600862] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- James M Broering
- School of Chemical and Biomolecular Engineering, Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, 315 Ferst Drive, Atlanta, GA 30332-0363, USA
| | | | | | | | | | | |
Collapse
|
28
|
Biocatalytic Reaction And Recycling by Using CO2-Induced Organic–Aqueous Tunable Solvents. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
29
|
Perrone MG, Santandrea E, Giorgio E, Bleve L, Scilimati A, Tortorella P. A chemoenzymatic scalable route to optically active (R)-1-(pyridin-3-yl)-2-aminoethanol, valuable moiety of β3-adrenergic receptor agonists. Bioorg Med Chem 2006; 14:1207-14. [PMID: 16216512 DOI: 10.1016/j.bmc.2005.09.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2005] [Revised: 09/13/2005] [Accepted: 09/20/2005] [Indexed: 10/25/2022]
Abstract
Enantiomerically pure (R)-2-chloro-1-(pyridin-3-yl)ethanol has been prepared by kinetic resolution performed in the presence of Candida antarctica SP435-L lipase immobilized on a macroporous polyacrylate resin (Novozym 435). It was converted into (R)-1-(pyridin-3-yl)-2-aminoethanol, left-hand side of beta(3)-adrenergic receptor ligands.
Collapse
|
30
|
|
31
|
Lindström M, Hedenström E, Bouilly S, Velonia K, Smonou I. Synthesis of diastereo- and enantiomerically pure anti-3-methyl-1,4-pentanediol via lipase catalysed acylation. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2005.01.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
32
|
Leonard V, Lamare S, Legoy MD, Graber M. Enantioselective acylation of R-2-pentanol in a solid/gas reactor catalysed by lipase B from Candida antarctica. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcatb.2004.09.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
33
|
McCabe R, Taylor A. An investigation of the acyl-binding site of Candida antarctica lipase B. Enzyme Microb Technol 2004. [DOI: 10.1016/j.enzmictec.2004.04.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
34
|
Xu R, Zong MH, Liu YY, He J, Zhang YY, Lou WY. Enzymatic enantioselective transcyanation of silicon-containing aliphatic ketone with (S)-hydroxynitrile lyase from Manihot esculenta. Appl Microbiol Biotechnol 2004; 66:27-33. [PMID: 15309340 DOI: 10.1007/s00253-004-1708-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2004] [Revised: 06/21/2004] [Accepted: 07/02/2004] [Indexed: 10/26/2022]
Abstract
(S)-Hydroxynitrile lyase from Manihot esculenta (MeHNL) was shown for the first time to be able to catalyze the enantioselective transcyanation of acetyltrimethylsilane (ATMS) with acetone cyanohydrin to form (S)-2-trimethylsilyl-2-hydroxyl-propionitrile in an aqueous/organic biphasic system. To better understand the reaction, various influential variables were examined. The most suitable organic phase, optimal buffer pH, aqueous phase content, shaking rate, temperature, concentration of ATMS, acetone cyanohydrin and crude enzyme were diisopropyl ether (DIPE), 5.4, 13% (v/v), 190 rpm, 40 degrees C, 10 mM, 20 mM, and 35 U/ml, respectively, under which the initial reaction rate, substrate conversion and product enantiomeric excess (e.e.) were 19.5 mM/h, 99.0% and 93.5%, respectively. A comparative study demonstrated that silicon atoms in the substrate had a great effect on the reaction, and that ATMS was a much better substrate for MeHNL than its carbon analogue 3,3-dimethyl-2-butanone (DMBO) with respect to the initial reaction rate, substrate conversion and product e.e. MeHNL has greater affinity towards ATMS than its carbon analogue as indicated by the much lower K(m). The activation energy of MeHNL-catalyzed transcyanation of ATMS was also markedly lower than that of DMBO. The silicon effect on the reaction was rationalized on the basis of the special characteristics of silicon atoms and the catalytic mechanism of MeHNL.
Collapse
Affiliation(s)
- Ruo Xu
- Department of Biotechnology, South China University of Technology, 510640 Guangzhou, People's Republic of China
| | | | | | | | | | | |
Collapse
|
35
|
Li N, Zong MH, Peng HS, Wu HC, Liu C. (R)-Oxynitrilase-catalyzed synthesis of (R)-2-trimethylsilyl-2-hydroxyl-ethylcyanide. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s1381-1177(02)00283-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
36
|
Brunet C, Zarevucka M, Wimmer Z, Legoy MD. Total enzymatic resolution of racemic 2-(4-methoxybenzyl)-1-cyclohexanols and 2-(4-methoxybenzyl)-1-cyclopentanols. Enzyme Microb Technol 2002. [DOI: 10.1016/s0141-0229(02)00144-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
37
|
Jacobsen EE, Anthonsen T. Water content influences the selectivity of CALB-catalyzed kinetic resolution of phenoxymethyl-substituted secondary alcohols. CAN J CHEM 2002. [DOI: 10.1139/v02-068] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Derivatives of 1-phenoxy-2-alkanols were kinetically resolved by esterification with irreversible and reversible acyl donors using lipase B from Candida antarctica (Novozyme 435) as a catalyst. To optimize the relative rate of reaction (the E-value), esterifications in eight different solvents with different water activities were performed. For 3-bromo-1-phenoxy-2-propanol (1), the E-values in all the solvents were higher when the water activity was increased, while the E-values for 1-phenoxy-2-pentanol (2) and 3-chloro-1-phenoxy-2-propanol (3) decreased by increasing water activity. The water content of the various reaction media with the same water activity was determined. Solvents such as 1,4-dioxane, acetonitrile, and tetrahydrofuran contained much more water than hexane, carbon tetrachloride, cyclohexane, toluene, and benzene. At high-water activity, the high-water content of the former group of solvents resulted in termination of the reaction at low conversion. The reason seemed to be that the acyl donor and possibly also the produced esters were hydrolyzed. This was not the case when the esterification was performed in water-immiscible solvents with the same water activity.Key words: kinetic resolution, E-value, solvents, water activity, water content.
Collapse
|
38
|
Ottosson J, Fransson L, King JW, Hult K. Size as a parameter for solvent effects on Candida antarctica lipase B enantioselectivity. BIOCHIMICA ET BIOPHYSICA ACTA 2002; 1594:325-34. [PMID: 11904228 DOI: 10.1016/s0167-4838(01)00324-7] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Changes in solvent type were shown to yield significant improvement of enzyme enantioselectivity. The resolution of 3-methyl-2-butanol catalyzed by Candida antarctica lipase B, CALB, was studied in eight liquid organic solvents and supercritical carbon dioxide, SCCO(2). Studies of the temperature dependence of the enantiomeric ratio allowed determination of the enthalpic (Delta(R-S)Delta H(++)) as well as the entropic (Delta(R-S)Delta S(++)) contribution to the overall enantioselectivity (Delta(R-S)Delta G(++)= -RTlnE). A correlation of the enantiomeric ratio, E, to the van der Waals volume of the solvent molecules was observed and suggested as one of the parameters that govern solvent effects on enzyme catalysis. An enthalpy-entropy compensation relationship was indicated between the studied liquid solvents. The enzymatic mechanism must be of a somewhat different nature in SCCO(2), as this reaction in this medium did not follow the enthalpy-entropy compensation relation.
Collapse
Affiliation(s)
- Jenny Ottosson
- Department of Biotechnology, Royal Institute of Technology, Stockholm Center for Physics Astronomy and Biotechnology, Sweden
| | | | | | | |
Collapse
|
39
|
Kobata K, Kawaguchi M, Watanabe T. Enzymatic synthesis of a capsinoid by the acylation of vanillyl alcohol with fatty acid derivatives catalyzed by lipases. Biosci Biotechnol Biochem 2002; 66:319-27. [PMID: 11999404 DOI: 10.1271/bbb.66.319] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Capsinoids are a novel group of compounds produced by the Capsicum plant. We synthesized a capsinoid by the lipase-catalyzed esterification of vanillyl alcohol with fatty acid derivatives in an organic solvent. The use of seven out of 17 commercially available lipases, especially Novozym 435, was applicable to the synthesis of vanillyl nonanoate, a model compound of capsinoids. The yield of vanillyl nonanoate under the optimum conditions of 50 mM vanillyl alcohol and 50 mM methyl nonanoate in 500 microl of dioxane, using 20 mg of Novozym 435 and 50 mg of 4 A molecular sieves at 25 degrees C, was 86% in 20 h. Several capsinoid homologues having various acyl chain lengths (C6-C18) were synthesized at 64-86% yields from the corresponding fatty acid methyl ester. The natural capsinoids, capsiate and dihydrocapsiate, were obtained by a 400-fold-scale reaction at these optimum conditions in 60% and 59% isolated yields, respectively.
Collapse
Affiliation(s)
- Kenji Kobata
- School of Food and Nutritional Sciences, University of Shizuoka, Japan
| | | | | |
Collapse
|
40
|
Abstract
Lipases are used frequently as chiral catalysts in the synthesis of various fine chemicals and intermediates. The increasing need of compounds with high stereochemical purity requires catalysts with an improved and controlled performance. This overview emphasizes some important aspects for the control of lipase enantioselectivity and some examples where the enantioselectivity has been altered or reversed are highlighted. However, in several of these cases the complete explanation for the altered or reversed enantioselectivity remains unclear and needs to be solved. Three different strategies (engineering of the reaction medium, the substrate molecule, and the enzyme) for exploring lipase enantioselectivity at a molecular level are discussed and summarized. These three different approaches represent powerful tools for understanding the molecular basis for lipase enantioselective catalysis and can guide the rational improvement and tailoring of catalyst performance. By combining approaches from chemistry and biology much is learnt about the most important parameters controlling lipase enantioselectivity for organic synthesis.
Collapse
Affiliation(s)
- P Berglund
- Department of Biotechnology, Royal Institute of Technology (KTH), SE-100 44 Stockholm, Sweden.
| |
Collapse
|
41
|
Screening and catalytic activity in organic synthesis of novel fungal and yeast lipases. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1381-1177(00)00244-7] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
42
|
Overbeeke PL, Jongejan JA, Heijnen JJ. Solvent effect on lipase enantioselectivity. Evidence for the presence of two thermodynamic states. Biotechnol Bioeng 2000; 70:278-90. [PMID: 10992232 DOI: 10.1002/1097-0290(20001105)70:3<278::aid-bit5>3.0.co;2-i] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The enantioselectivity of lipase-catalyzed kinetic resolutions has been measured at various temperatures in binary mixtures of solvents. Varying the solvent composition and temperature had a profound effect on the enantiomeric ratio. The values for delta delta H(R-S)(#) and delta delta S(R-S)(#), calculated from the E values measured at various temperatures, were estimated as a function of the solvent composition. By plotting delta delta H(R-S)(#) versus delta delta S(R-S)(#) as a function of the solvent composition, an extreme was observed. The resulting "hairpin-type" enthalpy-entropy compensation plots can be described by assuming the presence of two thermodynamically distinct physical states, displaying different enantioselectivities, that are in equilibrium with one another. Changing the solvent composition results in a change in the equilibrium constant K(eq) for the two states. The intriguing bell-shaped curves of the enantioselectivity versus solvent composition observed for lipase-catalyzed kinetic resolutions can be described assuming a linear correlation for the logarithm of K(eq) and the solvent composition. Thus, a simulation of the two-state model adequately describes the solvent effects found for lipase-catalyzed kinetic resolutions in binary mixtures of solvents and possibly in series of homologous organic solvents.
Collapse
Affiliation(s)
- P L Overbeeke
- Kluyver Laboratory for Biotechnology, Delft University of Technology, Julianalaan 67, 2628 BC, Delft, The Netherlands
| | | | | |
Collapse
|
43
|
Rotticci D, Norin T, Hult K. Mass transport limitations reduce the effective stereospecificity in enzyme-catalyzed kinetic resolution. Org Lett 2000; 2:1373-6. [PMID: 10814450 DOI: 10.1021/ol005639m] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction-see text] The kinetic resolution of seudenol catalyzed by Candida antarctica lipase B in hexane was investigated. Large differences in reaction rate and stereospecificity were observed when different enzyme preparations were used. These differences were ascribed to mass transport limitations which reduced both reaction rate and stereospecificity. Lyophilized enzyme preparations were more apt to give this problem than immobilized preparations. Further, low substrate concentrations enhanced the effect. Thus, high alcohol concentrations and enzyme immobilization can be recommended.
Collapse
Affiliation(s)
- D Rotticci
- Department of Chemistry, Organic Chemistry, and Department of Biotechnology, Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | | | | |
Collapse
|
44
|
Manco G, Giosuè E, D'Auria S, Herman P, Carrea G, Rossi M. Cloning, overexpression, and properties of a new thermophilic and thermostable esterase with sequence similarity to hormone-sensitive lipase subfamily from the archaeon Archaeoglobus fulgidus. Arch Biochem Biophys 2000; 373:182-92. [PMID: 10620337 DOI: 10.1006/abbi.1999.1497] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new esterase gene from the hyperthermophilic archaeon Archaeoglobus fulgidus, reported to show homology with the mammalian hormone-sensitive lipase (HSL)-like group of the esterase/lipase family, was cloned by means of the polymerase chain reaction from the A. fulgidus genome. In order to compare the biochemical properties of this putative hyperthermophilic enzyme with those of the homologous, thermophilic member of HSL group, namely Alicyclobacillus (formerly Bacillus) acidocaldarius esterase 2 (EST2), an overexpression system in Escherichia coli was established. The recombinant protein, expressed in soluble and active form at 20 mg/liter of E. coli culture, was purified to homogeneity and characterized. The enzyme, a 35.5-kDa monomeric protein, was demonstrated to be a B"-type carboxylesterase (EC 3.1.1.1) on the basis of substrate specificity and the action of inhibitors. Among the p-nitrophenyl (PNP) esters tested the best substrate was PNP-hexanoate with K(m) and k(cat) values of 11 +/- 3 microM (mean +/- SD, n = 3) and 1014 +/- 38 s(-1) (mean +/- SD, n = 3), respectively, at 70 degrees C and pH 7.1. Inactivation by diethylpyrocarbonate, phenylmethylsulfonylfluoride, diisopropylfosfofluoridate (DFP), and physostigmine, as well as labeling with [(3)H]DFP, supported our previous suggestion of a catalytic triad made up of Ser(160)-His(285)-Asp(255). The sequence identity with the thermostable A. acidocaldarius EST2 was 42.5%. The enzyme proved to be much more stable than its Alicyclobacillus counterpart. The conformational dynamics of the two proteins were investigated by frequency-domain fluorometry and anisotropy decay and the activity/stability/temperature relationship was discussed.
Collapse
Affiliation(s)
- G Manco
- Istituto di Biochimica delle Proteine ed Enzimologia, CNR, Via Marconi 10, Naples, 80125, Italy.
| | | | | | | | | | | |
Collapse
|
45
|
Costes D, Wehtje E, Adlercreutz P. Hydroxynitrile lyase-catalyzed synthesis of cyanohydrins in organic solvents. Enzyme Microb Technol 1999. [DOI: 10.1016/s0141-0229(99)00055-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
46
|
Wehtje E, Adlercreutz P, Mattiasson B. Thermodynamic and kinetic aspects on water vs. organic solvent as reaction media in the enzyme-catalysed reduction of ketones. BIOCHIMICA ET BIOPHYSICA ACTA 1999; 1430:313-22. [PMID: 10082959 DOI: 10.1016/s0167-4838(99)00012-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The stereoselective reduction of ketones catalysed by alcohol dehydrogenase from Thermoanaerobium brockii was studied in different reaction media, hexane at controlled water activities, hexane with 2. 5% water (biphasic) and pure water. The reactions were studied in the temperature range from -1 to 50 degrees C. Increasing the water activity from 0.53 to 0.97 increased the reaction rate 16-fold. The rate was further enhanced in hexane when exceeding the water solubility and in pure water the rates were even higher. This was general for all ketones studied. At controlled water activity the entropy of activation (DeltaSdouble dagger) was the dominating factor. Large negative DeltaSdouble dagger values caused low reaction rates at low aw. When increasing the carbon chain length of the substrate, for reactions in hexane, the decrease of reaction rate was mainly due to a decrease in DeltaSdouble dagger. In the comparison between hexane and pure water, DeltaGdouble dagger values were higher in hexane due to higher DeltaHdouble dagger (activation enthalpy) values. The enantioselectivity (E value) increased from 2.6 at water activity 0. 53 to 4.6 at water activity 0.97. Changing media from hexane (2.5%, v/v water) to pure water was not affecting the enantioselectivity or the specificity for different ketones.
Collapse
|
47
|
Persson BA, Larsson ALE, Le Ray M, Bäckvall JE. Ruthenium- and Enzyme-Catalyzed Dynamic Kinetic Resolution of Secondary Alcohols. J Am Chem Soc 1999. [DOI: 10.1021/ja983819+] [Citation(s) in RCA: 319] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
48
|
Jönsson Å, van Breukelen W, Wehtje E, Adlercreutz P, Mattiasson B. The influence of water activity on the enantioselectivity in the enzyme-catalyzed reduction of 2-pentanone. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s1381-1177(98)00048-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
49
|
Banfi L, Guanti G, Mugnoli A, Riva R. Lipase catalyzed asymmetrization of quinolyl substituted 1,3-propanediols. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0957-4166(98)00247-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
50
|
Arvidsson PI, Hansson M, Khan AZQ, Ahlberg P. Solvent-induced stereospecific isomerization of an allylic alcohol to a homoallylic alcohol catalyzed by a chiral lithium amide. CAN J CHEM 1998. [DOI: 10.1139/v98-052] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Deprotonation of cyclohexene oxide, 1, by lithium (S)-2-(1-pyrrolidinylmethyl)pyrrolidide, 2-Li, on changing the solvent from tetrahydrofuran (THF) to, for example, 2,5-dimethyltetrahydrofuran (DMTHF) or diethyl ether (DEE) has been shown to yield, besides the lithium alkoxide of 2-cyclohexene-1-ol, 3-Li, the lithium alkoxide of the homoallylic alcohol 3-cyclohexene-1-ol, 4-Li. It was shown that compound 4-Li is formed from 3-Li. No such rearrangement has been observed in THF. We have now shown that the solvent-induced isomerization of the lithium alkoxide of (S)-3-methyl-2-cyclohexene-1-ol, (S)-5-Li, catalyzed by 2-Li to the lithium alkoxide of (S)-3-methyl-3-cyclohexene-1-ol, (S)-6-Li, is 100% stereospecific. Furthermore, deuterium-labeling experiments suggest that the rearrangement of the proton is close to 100% intramolecular.Key words: 1,3-proton transfer, chiral lithium amide, intramolecular, solvent-induced isomerization, stereospecific.
Collapse
|