EC Number |
General Information |
Reference |
---|
1.1.1.252 | evolution |
the enzyme is a member of the short-chain dehydrogenase/reductase (SDR) family of enzymes |
723949 |
1.1.1.252 | metabolism |
the enzyme catalyzes a step in 1,8-dihydroxynaphthalene-melanin biosynthesis, overview |
723949 |
1.1.1.252 | more |
structure-activity relationship of T4HNR and dynamics of its catalytic cycle, substrate docking study, the carboxylate of Ile274 might have an impact on substrate orientation, overview. Two orientations of tetralones in the active site of T4HNR revealed by docking studies: 1. si-face orientation (representing the preferential hydrophobic interaction of the methoxy group of substrate 5-methoxy-2-tetralone) and 2. the re-face orientation |
723949 |
1.1.1.252 | physiological function |
enzyme-deficient mutants produce orange-brown or green-brown spore suspensions compared with the black spore suspension of the wild-type strain |
740381 |
1.1.1.252 | physiological function |
expression of genes CHS1, BdsA, and BdsB is necessary and sufficient for the production of 1,8-dihydroxynaphthalene in a heterologous host. Polyketide synthase CHS1 catalyzes the synthesis of 1,3,6,8-tetrahydroxynaphthalene (T4HN) in vitro. T4HN is converted to 1,8-dihydroxynaphthalene by successive steps of reduction and dehydration, which are catalyzed by BdsA and BdsB. BdsA catalyzes the reduction of T4HN and 1,3,8-trihydroxynaphthalene (T3HN) to scytalone and vermelone, respectively. T4HN reduction by BdsA occurs on the si-face to give (R)-scytalone with more than 99% optical purity |
762638 |