Carving the Active Site of CYP153A7 Monooxygenase for Improving Terminal Hydroxylation of Medium-Chain Fatty Acids.
Chembiochem
; 23(9): e202200063, 2022 05 04.
Article
em En
| MEDLINE
| ID: mdl-35257464
ABSTRACT
The P450-mediated terminal hydroxylation of non-activated C-H bonds is a chemically challenging reaction. CYP153A7 monooxygenase, discovered in Sphingomonas sp. HXN200, belongs to the CYP153A subfamily and shows a pronounced terminal selectivity. Herein, we report the significantly improved terminal hydroxylation activity of CYP153A7 by redesign of the substrate binding pocket based on molecular docking of CYP153A7-C80 and sequence alignments. Some of the resultant single mutants were advantageous over the wild-type enzyme with higher reaction rates, achieving a complete conversion of n-octanoic acid (C80, 1â
mM) in a shorter time period. Especially, a single-mutation variant, D258E, showed 3.8-fold higher catalytic efficiency than the wild type toward the terminal hydroxylation of medium-chain fatty acid C80 to the high value-added product 8-hydroxyoctanoic acid.
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Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Sistema Enzimático do Citocromo P-450
/
Ácidos Graxos
Idioma:
En
Revista:
Chembiochem
Assunto da revista:
BIOQUIMICA
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
China