期刊
BIOTECHNOLOGY AND BIOENGINEERING
卷 88, 期 4, 页码 528-535出版社
WILEY
DOI: 10.1002/bit.20285
关键词
P450; microfluidics; hydroxylation; polyketide
The incorporation of a multicomponent, cofactor-dependant P450 into a microfluidic biochip is demonstrated. The PikC hydroxylase Streptomyces venezuelae was incorporated into a PDMS-based microfluidic channel. The enzyme was immobilized to Ni-NTA agarose beads via in situ attachment following the addition of the beads to the microchannel. The enzyme loading was similar to6 mug per mg of beads resulting in a microchannel loading of 10.7 mg/mL. This high enzyme loading enabled the rapid hydroxylation of the macrolide YC-17 to methymycin and neomethymycin in about equal amounts with a conversion of >90% at a flow rate of 70 nL/min. This high reactivity allowed rapid hydroxylation reactions to be performed with short residence times, which is critical for complex enzymes with limited inherent stability. (C) 2004 Wiley Periodicals, Inc.
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