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KMID : 0545120180280040561
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Journal of Microbiology and Biotechnology
2018 Volume.28 No. 4 p.561 ~ p.565
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Hydroxylation of Resveratrol with DoxA In Vitro: An Enzyme with the Potential for the Bioconversion of a Bioactive Stilbene
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Rimal Hemraj
Yu Sang-Cheol
Lee Joo-Ho
Yamaguchi Tokutaro
Oh Tae-Jin
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Abstract
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The late-stage doxorubicin biosynthesis pathway acting enzyme (DoxA) from Streptomyces peucetius CYP129A2 exhibited substrate promiscuity towards the stilbene group of compounds such as resveratrol. DoxA along with two accessory enzymes ferrdoxin reductase and ferredoxin from spinach hydroxylated resveratrol at the 3’-position in vitro to produce piceatannol. The product was identified by HPLC-PDA and high-resolution HR-qTOF-ESI/ MS analyses in positive mode. The ESI/MS fragments resembled the hydroxylated product of resveratrol.
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KEYWORD
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DoxA, hydroxylation, monooxygenase, resveratrol, substrate flexibility
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