Steroids p. 723 - 730 (1980)
Update date:2022-08-04
Topics:
Knight, John C.
Wovcha, Merle G.
A mutant of the potent sterol degrader Mycobacterium fortuitum (ATCC 6842) has been isolated which is defective in its ability to degrade both the steroid nucleus and sterol side-chains that are branched at the 24-position.Bioconversions of phytosterol mixtures by this mutant resulted in the accumulation of the novel 24-oxo intermediates 9-hydroxy-27-nor-4-cholestene-3,24-dione (II) and 9-hydroxy-26,27-dinor-4-cholestene-3,24-dione (III).Under the same conditions, cholesterol is degraded mainly to 9-hydroxy-4-androstene-3,17-dione (I) by this organism.
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