Despreaux CW, Rittweger KR, Palleroni NJ. Microbial 7alpha-hydroxylation of 3-ketobisnorcholenol.
Appl Environ Microbiol 1986;
51:946-9. [PMID:
16347069 PMCID:
PMC238992 DOI:
10.1128/aem.51.5.946-949.1986]
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Abstract
The transformation of 22-hydroxy-23,24-bisnorchol-4-en-3-one to 7alpha-22-dihydroxy-23,24-bisnorchol-4-en-3-one by Botryodiploida theobromae, Lasiodiplodia theobromae, and various Botryosphaeria strains is described. Factors affecting the reaction were incubation temperature, sonication of the substrate, and addition of 2,2'-dipyridyl, extra carbohydrate, and Amberlite XAD-7. The enzyme responsible for the reaction appeared to be very specific and was not characteristic of all members of the genera listed above.
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