title: Delta8(14)-steroids in the bacterium Methylococcus capsulatus.
abstract: The 4,4-dimethyl and 4alpha-methyl sterols of the bacterium Methylococcus capsulatus were identified as 4,4-dimethyl- and 4alpha-methyl-5alpha-cholest-8(14)-en-3beta-ol and 4,4-dimethyl- and 4alpha-methyl-5alpha-cholesta-8(14),24-dien-3beta-ol. Sterol biosynthesis is blocked at the level of 4alpha-methyl delta8(14)-sterols.
mesh_terms: D002775:Cholestadienols / Q000032:analysis* / Q000302:isolation & purification; D006088:Gram-Negative Aerobic Bacteria / Q000032:analysis*; D013261:Sterols / Q000032:analysis*
chemical_list: D002775:Cholestadienols; D013261:Sterols