Chromogenic nitrophenolate-based substrates for light-driven hybrid P450 BM3 enzyme assay
摘要:
The incorporation of a p-nitrophenoxy moiety in substrates has enabled the development of colorimetric assays to rapidly screen for O-demethylation activity of P450 enzymes. For the light-driven hybrid P450 BM3 enzymes, where a Ru(II) photosensitizer powers the enzyme upon visible light irradiation, we have investigated a family of p-nitrophenoxy derivatives as useful chromogenic substrates compatible with the light-driven approach. The validation of this assay and its adaptability to a 96-well plate format will enable the screening of the next generation of hybrid P450 BM3 enzymes towards C-I-I bond functionalization of non-natural substrates. (c) 2015 Elsevier Inc. All rights reserved.
Haem substitution is an effective approach to tweak the function of haemoproteins. Herein, we report a facile haem substitution method for self-sufficient cytochromeP450BM3 (CYP102A1) from Bacillus megaterium utilising the transpeptidase Sortase A from Staphylococcus aureus. We successfully constructed Mn-substituted BM3 and investigated its catalytic activity.
Immobilisation of P450 BM-3 and an NADP+ Cofactor Recycling System: Towards a Technical Application of Heme-Containing Monooxygenases in Fine Chemical Synthesis
作者:Steffen C. Maurer、Holger Schulze、Rolf D. Schmid、Vlada Urlacher
DOI:10.1002/adsc.200303021
日期:2003.6
supply of NAD(P)H, making the process an expensive one. To render these catalysts more suitable for industrial biocatalysis, the immobilisation of P450BM-3 (CYP 102A1) from Bacillus megaterium in a sol-gel matrix was combined with a cofactorrecyclingsystem based on NADP+-dependent formate dehydrogenase (EC 1.2.1.2) from Pseudomonas sp. 101 and tested for practical applicability. This approach was
Method for producing a hydroxylation catalyst and the use thereof
申请人:Hauer Bernhard
公开号:US20060216802A1
公开(公告)日:2006-09-28
A process for preparing a hydroxylation catalyst by i) embedding a cystochrome P450 monooxygenase in a sol-gel matrix, ii) embedding an enzymatic NADPH-regenerating system in a sol-gel matrix, and combining the two components i) and ii) unless they were already mixed together before the embedding.