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| Content Provider | Springer Nature Link |
|---|---|
| Author | Engel, U. Syldatk, C. Rudat, J. |
| Copyright Year | 2011 |
| Abstract | In this study, we investigated the possibility of using a modified hydantoinase process for the production of optically pure β-amino acids. Two aryl-substituted dihydropyrimidines d,l-6-phenyl-5,6-dihydrouracil (PheDU) and para-chloro-d,l-6-phenyl-5,6-dihydrouracil (pClPheDU) were synthesized. Hydrolysis of these novel substrates to the corresponding N-carbamoyl-β-amino acids by three recombinant d-hydantoinases and several bacterial strains was tested. All applied recombinant d-hydantoinases and eight bacterial isolates catalyzed the conversion of PheDU to N-carbamoyl-β-phenylalanine (NCβPhe). Some of these biocatalysts showed an enantioselectivity for either the d- or the l-PheDU enantiomer. The second dihydropyrimidinase substrate pClPheDU was hydrolyzed by all three recombinant d-hydantoinases and six of the wild-type strains. To our knowledge, this is the first dihydropyrimidinase activity reported with this aryl-substituted dihydropyrimidine. For selected biocatalysts, hydantoinase activity towards aryl-substituted hydantoins was demonstrated as well. However, none of the bacterial strains tested so far exhibited any carbamoylase activity towards NCβPhe. |
| Starting Page | 1221 |
| Ending Page | 1231 |
| Page Count | 11 |
| File Format | |
| ISSN | 01757598 |
| Journal | Applied Microbiology and Biotechnology |
| Volume Number | 94 |
| Issue Number | 5 |
| e-ISSN | 14320614 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2011-11-27 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | Subscribed |
| Subject Keyword | Beta-amino acid Hydantoinase Dihydropyrimidinase Carbamoylase Microbiology Biotechnology Microbial Genetics and Genomics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Applied Microbiology and Biotechnology Biotechnology |
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