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Heinsman NW, Orrenius SC, Marcelis CLM, De Sousa Teixeira A, Franssen MCR, Vander Padt A, Jongejan JA, De Groot A. Lipase Mediated Resolution of γ-Branched Chain Fatty Acid Methyl Esters. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242429809003618] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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2
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Formaggio F, Crisma M, Toniolo C, Broxterman QB, Kaptein B, Corbier C, Saviano M, Palladino P, Benedetti E. Cα-Methyl, Cα-n-Propylglycine Homo-oligomers. Macromolecules 2003. [DOI: 10.1021/ma030327v] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | - Catherine Corbier
- Laboratory of Crystallography, ESA 7036, Université Henry Poincaré−Nancy I, 54506 Vandoeuvre-lès-Nancy, France
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3
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Badorrey R, Cativiela C, Dı́az-de-Villegas MD, Gálvez JA. Efficient resolution of rac-2-cyano-2-methyl-3-phenylpropanoic acid. An appropriate starting material for the enantioconvergent synthesis of (S)-α-methylphenylalanine on a large laboratory scale. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0957-4166(03)00450-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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4
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Kaptein B, Broxterman QB, Schoemaker HE, Rutjes FP, Veerman JJ, Kamphuis J, Peggion C, Formaggio F, Toniolo C. Enantiopure Cα-tetrasubstituted α-amino acids. Chemo-enzymatic synthesis and application to turn-forming peptides. Tetrahedron 2001. [DOI: 10.1016/s0040-4020(01)00548-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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5
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Peggion C, Formaggio F, Crisma M, Toniolo C, Kamphuis J, Kaptein B, Broxterman QB, Vitale RM, Iacovino R, Saviano M, Benedetti E. Cα-Methyl,Cα-allylglycine (Mag) Homooligomers. Macromolecules 2001. [DOI: 10.1021/ma0019353] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | - Johan Kamphuis
- DSM Food Specialties, Nutritional Ingredients, P.O. Box 1, 2600 MA Delft, The Netherlands
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6
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Moretto A, Peggion C, Formaggio F, Crisma M, Toniolo C, Piazza C, Kaptein B, Broxterman QB, Ruiz I, Díaz-de-Villegas MD, Galvez JA, Cativiela C. (alphaMe)Nva: stereoselective syntheses and preferred conformations of selected model peptides. THE JOURNAL OF PEPTIDE RESEARCH : OFFICIAL JOURNAL OF THE AMERICAN PEPTIDE SOCIETY 2000; 56:283-97. [PMID: 11095182 DOI: 10.1034/j.1399-3011.2000.00768.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Using different stereoselective chemical and chemoenzymatic approaches we synthesized the chiral, Calpha-methylated alpha-amino acid L-(alphaMe)Nva with a short, linear side-chain. A set of terminally protected model peptides to the pentamer level containing either (alphaMe)Nva or Nva in combination with Ala and/or Aib was prepared using solution methods and characterized fully. Two (alphaMe)Nva peptides were also synthesized using side-chain hydrogenation of the corresponding Calpha-methyl, Calpha-allylglycine (Mag) peptides. A detailed solution and crystal-state conformational analysis based on FT-IR absorption, 1H NMR and X-ray diffraction techniques allowed us to define that: (i) (alphaMe)Nva is an effective beta-turn and 3(10)-helix former; and (ii) the relationship between (alphaMe)Nva chirality and the screw sense of the turn/helix formed is that typical of protein amino acids, i.e. L-(alphaMe)Nva induces the preferential formation of right-handed folded structures. In more general terms, this study reinforced previous conclusions that peptides based on alpha-amino acids with a Calpha-methyl substituent and a Calpha-linear alkyl substituent are characterized by a strong tendency to fold into turn and helical structures.
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Affiliation(s)
- A Moretto
- Biopolymer Research Center, CNR, Department of Organic Chemistry, University of Padova, Italy
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7
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Peggion C, Flammengo R, Mossel E, Broxterman QB, Kaptein B, Kamphuis J, Formaggio F, Crisma M, Toniolo C. Mag: a Cα-Methylated, Side-chain Unsaturated α-Amino Acid. Introduction into Model Peptides and Conformational Preference. Tetrahedron 2000. [DOI: 10.1016/s0040-4020(00)00274-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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8
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Michielsen MJ, Frielink C, Wijffels RH, Tramper J, Beeftink HH. D-malate production by permeabilized Pseudomonas pseudoalcaligenes; optimization of conversion and biocatalyst productivity. J Biotechnol 2000; 79:13-26. [PMID: 10817338 DOI: 10.1016/s0168-1656(00)00220-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
For the development of a continuous process for the production of solid D-malate from a Ca-maleate suspension by permeabilized Pseudomonas pseudoalcaligenes, it is important to understand the effect of appropriate process parameters on the stability and activity of the biocatalyst. Previously, we quantified the effect of product (D-malate2 -) concentration on both the first-order biocatalyst inactivation rate and on the biocatalytic conversion rate. The effects of the remaining process parameters (ionic strength, and substrate and Ca2 + concentration) on biocatalyst activity are reported here. At (common) ionic strengths below 2 M, biocatalyst activity was unaffected. At high substrate concentrations, inhibition occurred. Ca2+ concentration did not affect biocatalyst activity. The kinetic parameters (both for conversion and inactivation) were determined as a function of temperature by fitting the complete kinetic model, featuring substrate inhibition, competitive product inhibition and first-order irreversible biocatalyst inactivation, at different temperatures simultaneously through three extended data sets of substrate concentration versus time. Temperature affected both the conversion and inactivation parameters. The final model was used to calculate the substrate and biocatalyst costs per mmol of product in a continuous system with biocatalyst replenishment and biocatalyst recycling. Despite the effect of temperature on each kinetic parameter separately, the overall effect of temperature on the costs was found to be negligible (between 293 and 308 K). Within pertinent ranges, the sum of the substrate and biocatalyst costs per mmol of product was calculated to decrease with the influent substrate concentration and the residence time. The sum of the costs showed a minimum as a function of the influent biocatalyst concentration.
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Affiliation(s)
- M J Michielsen
- Department of Food Technology and Nutritional Sciences, Wageningen Agricultural University, The Netherlands
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9
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Peggion C, Mossel E, Formaggio F, Crisma M, Kaptein B, Broxterman QB, Kamphuis J, Toniolo C. (alphaMe)Aun: a highly lipophilic, chiral, Calpha-tetrasubstituted alpha-amino acid. Incorporation into model peptides and preferred conformation. THE JOURNAL OF PEPTIDE RESEARCH : OFFICIAL JOURNAL OF THE AMERICAN PEPTIDE SOCIETY 2000; 55:262-9. [PMID: 10727109 DOI: 10.1034/j.1399-3011.2000.00171.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Using a chemo-enzymatic approach we prepared the highly lipophilic, chiral, Calpha-methylated alpha-amino acid (alphaMe)Aun. Two series of terminally protected model peptides containing either D-(alphaMe)Aun in combination with Aib or L-(alphaMe)Aun in combination with Gly were synthesized using solution methods and fully characterized. A detailed solution conformational analysis, based on FT-IR absorption, 1H NMR and CD techniques, allowed us to determine the preferred conformation of this amino acid and the relationship between chirality at its alpha-carbon atom and screw sense of the helix that is formed. The results obtained strongly support the view that D-(alphaMe)Aun favors the formation of the left-handed 3(10)-helical conformation.
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Affiliation(s)
- C Peggion
- Department of Organic Chemistry, University of Padova, Italy
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10
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Peggion C, Piazza C, Formaggio F, Crisma M, Toniolo C, Kaptein B, Broxterman QB, Kamphuis J. Synthesis, conformation, and membrane modifying properties of the trikoningin KB lipopeptaibols: Effect of hydrophobicity and chirality in position 1. Int J Pept Res Ther 2000. [DOI: 10.1007/bf02443556] [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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11
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Peggion C, Formaggio F, Crisma M, Toniolo C, Kaptein B, Broxterman QB, Kamphuis J. Preferred solution conformation of peptides rich in the lipophilic, chiral, C(alpha)-methylated alpha-amino acid (alpha Me)Aoc. J Pept Sci 1999; 5:547-54. [PMID: 10628654 DOI: 10.1002/(sici)1099-1387(199912)5:12<547::aid-psc221>3.0.co;2-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The lipophilic, chiral, C(alpha)-methylated alpha-amino acid L-(alphaMe)Aoc (2-methyl-2-amino-octanoic acid) was prepared using a chemo-enzymatic approach. Two series of terminally protected model peptides, from dimer through to hexamer, containing L-(alphaMe)Aoc in combination with either Gly or Aib, were synthesized by solution methods and were fully characterized. A solution conformational analysis, based on FT-IR absorption, 1H-NMR and circular dichroism (CD) techniques, was performed with the aim at determining the preferred conformation of this novel amino acid and the relationship between chirality at its alpha-carbon atom and screw sense of the helix that is formed. The results obtained strongly support the view that L-(alphaMe)Aoc favours the formation of the right-handed 3(10)-helical conformation.
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Affiliation(s)
- C Peggion
- Biopolymer Research Centre, CNR, Department of Organic Chemistry, University of Padova, Italy
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12
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Wegman M, Hacking M, Rops J, Pereira P, van Rantwijk F, Sheldon R. Dynamic kinetic resolution of phenylglycine esters via lipase-catalysed ammonolysis. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0957-4166(99)00143-3] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Rutjes FPJT, Veerman JJN, Meester WJN, Hiemstra H, Schoemaker HE. Synthesis of Enantiopure Functionalized Pipecolic Acids via Amino Acid DerivedN-Acyliminium Ions. European J Org Chem 1999. [DOI: 10.1002/(sici)1099-0690(199905)1999:5<1127::aid-ejoc1127>3.0.co;2-a] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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14
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Enzymatic alcoholysis of alkoxymethyl alkanoates: a possible approach for the kinetic resolution of tertiary alcohols. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)01840-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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16
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Cα-methyl phenylglycine-based semi-synthetic ampicillin and cephalexin analogues. Int J Pept Res Ther 1998. [DOI: 10.1007/bf02443539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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18
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Franssen MC, Jongejan H, Kooijman H, Spek AL, Camacho Mondril NL, Boavida dos Santos PM, de Groot A. Resolution of a tetrahydrofuran ester by Candida rugosa lipase (CRL) and an examination of CRL's stereochemical preference in organic media. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/0957-4166(96)00033-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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van der Werf MJ, van den Tweel WJ, Hartmans S. Thermodynamics of the maleate and citraconate hydration reactions catalysed by malease from Pseudomonas pseudoalcaligenes. EUROPEAN JOURNAL OF BIOCHEMISTRY 1993; 217:1011-7. [PMID: 8223624 DOI: 10.1111/j.1432-1033.1993.tb18332.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Malease from Pseudomonas pseudoalcaligenes catalyses the hydration of both maleate and citraconate to D-malate and D-citramalate, respectively. The Kapp for these hydration reactions were 2050 and 104, respectively, under standard biochemical conditions (25 degrees C, pH 7.0, I = 0.1). The influence of the pH (6.0-8.5) on Kapp was determined. The Gibbs-free-energy changes under standard biochemical conditions for the hydration of the dianionic acids were calculated to be -19.28 kJ.mol-1 and -11.65 kJ.mol-1, respectively. From the obtained data together with data from the literature, the Gibbs free energy of formation of maleate2- and citraconate2- were calculated to be -588.91 kJ.mol-1 and -600.56 kJ.mol-1, respectively. The influence of the temperature (10-40 degrees C) on Kapp was determined for both hydration reactions. The enthalpy change (delta H degrees') and entropy change (delta S degrees') under standard biochemical conditions for the maleate2- (delta H degrees' = 18.07 kJ.mol-1, delta S degrees' = 2.94 J.mol-1 x K-1) and citraconate2- (delta H degrees' = -22.55 kJ.mol-1, delta S degrees' = -35.92 kJ.mol-1 x K-1) hydration reactions were calculated. The reaction rate of malease from Ps. pseudoalcaligenes was studied for both hydration reactions as a function of temperature. From these studies, the Gibbs free energies of activation for the maleate and citraconate hydration reactions catalysed by malease from Ps. pseudoalcaligenes were calculated to be 62.21 kJ.mol-1 and 63.43 kJ.mol-1, respectively.
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Affiliation(s)
- M J van der Werf
- Department of Food Science, Wageningen Agricultural University, The Netherlands
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20
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Faber K, Franssen MC. Prospects for the increased application of biocatalysts in organic transformations. Trends Biotechnol 1993; 11:461-70. [PMID: 7764400 DOI: 10.1016/0167-7799(93)90079-o] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Predicting the future use of biocatalysts for the transformation of organic compounds--both natural substrates and other compounds--needs to take many factors into account. To date, relatively few biotransformations have been developed to the industrial scale, primarily because there has been little economic incentive to replace existing successful processes with biocatalysts, with their inherent problems of instability, lack of selectivity and narrow operational range. However, advances that improve biocatalyst performance, coupled with the increasing emphasis on 'chirotechnology', are driving the development of biocatalysis as a complementary, if not a rival technology to existing chemical approaches.
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Affiliation(s)
- K Faber
- Institute of Organic Chemistry, Graz University of Technology, Austria
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21
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Junker BH, Bhupathy M, Buckland BC. Development of a recovery and recycle process for a pseudomonas lipase used for large-scale enzymatic synthesis. Biotechnol Bioeng 1993; 42:487-93. [DOI: 10.1002/bit.260420412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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van der Werf MJ, van den Tweel WJ, Hartmans S. Screening for microorganisms producing D-malate from maleate. Appl Environ Microbiol 1992; 58:2854-60. [PMID: 1444397 PMCID: PMC183018 DOI: 10.1128/aem.58.9.2854-2860.1992] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
More than 300 microorganisms were screened for their ability to convert maleate into D-malate as a result of the action of maleate hydratase. Accumulation of fumarate during incubation of permeabilized cells with maleate was shown to be indicative of one of the two enzymes known to transform maleate. The ratio in which fumarate and malate accumulated could be used to estimate the enantiomeric composition of the malate formed. Many strains (n = 128) were found to be capable of converting maleate to D-malate with an enantiomeric purity of more than 97%. Pseudomonas pseudoalcaligenes NCIMB 9867 was selected for more detailed studies. Although this strain was not able to grow on maleate, permeabilized cells were able to degrade maleate to undetectable levels, with a concomitant formation of D-malate. The D-malate was formed with an enantiomeric purity of more than 99.97%.
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Affiliation(s)
- M J van der Werf
- Department of Food Science, Wageningen Agricultural University, The Netherlands
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