Aragozzini F, Canzi E, Ferrari A, Maconi E, Sidjimov A. A study on the mechanism of the epimerization at C-3 of chenodeoxycholic acid by Clostridium perfringens.
Biochem J 1985;
230:451-5. [PMID:
2864922 PMCID:
PMC1152636 DOI:
10.1042/bj2300451]
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Abstract
The mechanism of 3-hydroxy epimerization of chenodeoxycholic acid by Clostridium perfringens was investigated in 3 alpha, 7 alpha-dihydroxy-[2,2,4,4-2H4]-, 3 alpha, 7 alpha-dihydroxy-[3 beta-2H]- and 3 beta, 7 alpha-dihydroxy-[3 alpha-2H]-5 beta-cholanoic acid transformations. Our findings rule out a dehydration-rehydration pathway and agree with a redox mechanism involving 3-oxochenodeoxycholic acid as intermediate.
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