Immobilisation of P450BM-3 and an NADP+ cofactor recycling system:: Towards a technical application of heme-containing monooxygenases in fine chemical synthesis

被引:103
作者
Maurer, SC [1 ]
Schulze, H [1 ]
Schmid, RD [1 ]
Urlacher, V [1 ]
机构
[1] Univ Stuttgart, Inst Tech Biochem, D-70569 Stuttgart, Germany
关键词
biotransformation; cofactor-recycling; cytochrome P450BM-3; hydroxylation; immobilisation; sol-gel;
D O I
10.1002/adsc.200303021
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Cytochrome P450 monooxygenases are potentially a very useful class of hydroxylation catalysts; they are able to introduce oxygen at activated and non-activated carbon-hydrogen bonds and thus lead to regio- and/or stereochemically pure compounds. However, this potential is lowered by their intrinsic low activity and inherent instability. P450-catalysed biotransformations require a constant supply of NAD(P)H, making the process an expensive one. To render these catalysts more suitable for industrial biocatalysis, the immobilisation of P450 BM-3 (CYP 102A1) from Bacillus megaterium in a sol-gel matrix was combined with a cofactor recycling system based on NADP(+)-dependent formate dehydrogenase (EC1.2.1.2) from Pseudomonas sp. 101 and tested for practical applicability. This approach was used for the conversion of beta-ionone, octane and naphthalene to the respective hydroxy compounds with DMSO as cosolvent using sol-gel immobilised P450 BM-3 mutants.
引用
收藏
页码:802 / 810
页数:9
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