Regiospecific oxidoreductions catalyzed by a new Pseudomonas paucimobilis hydroxysteroid dehydrogenase
作者:Ercolina Bianchini、Nicola Chinaglia、Mariangela Dean、Pier Paolo Giovannini、Alessandro Medici、Paola Pedrini、Silvia Poli
DOI:10.1016/s0040-4020(98)01111-9
日期:1999.1
The preparative-scaleregio- and stereo-specific oxidation of hydroxy groups and reduction of keto functions at C(3) of several C21 bile acids, catalyzed by a new 3α-hydroxysteroid dehydrogenase (3α-HSDH), is reported. The crude enzyme, isolated from the cells of Pseudomonas paucimobilis, revealed the presence of a further enzymatic fraction containing a secondary alcohol dehydrogenase (SADH), that