摘要:
The invention provides 12α-hydroxysteroid dehydrogenases, nucleic acid sequences coding for the same, expression cassettes and vectors, recombinant microorganisms containing the corresponding coding nucleic acid sequences, methods for producing said 12α-hydroxysteroid dehydrogenases, methods for enzymatic oxidation of 12α-hydroxysteroids using said enzyme, methods for enzymatic reduction of 12-ketosteroids using said enzyme, methods for qualitative or quantitative determination of 12-ketosteroids and/or 12α-hydroxysteroids using said 12α-hydroxysteroid dehydrogenases and methods for production of ursodesoxycholic acid, comprising the enzyme-catalysed cholic acid oxidation using said 12α-hydroxysteroid dehydrogenases.
摘要:
The invention relates to 12 α-hydroxysteroid dehydrogenases, nucleic acid sequences coding for the same, expression cassettes and vectors, recombinant microorganisms containing the corresponding coding nucleic acid sequences, a method for producing said 12 α-hydroxysteroid dehydrogenases, a method for enzymatic oxidation of 12 α-hydroxysteroids using said enzyme, a method for enzymatic reduction of 12-ketosteroids using said enzyme, a method for qualitative or quantitative determination of 12-ketosteroids and/or 12α-hydroxysteroids using said 12α-hydroxysteroid dehydrogenases and a method for production of ursodesoxycholic acid, comprising the enzyme-catalysed cholic acid oxidation using said 12 α-hydroxysteroid dehydrogenases.