1887

Abstract

The structures of the mycolic acids from the cell wall skeleton of AN-115 were established. Field desorption mass spectrometry of underivatized mycolic acids showed that the molecular species of the mycolic acids were distributed from C to C and the major components were C, C and C mono- and dienoic ?-hydroxy fatty acids. Pyrolysis gas chromatography-mass spectrometry confirmed that the mycolic acids consisted of a saturated straight C and C ?-chain and an unsaturated ?-chain, having mainly C and C carbons with one or two double bonds. The double bonds in the ?-chain were established as the isomers by nuclear magnetic resonance. The absolute configurations of the ?- and ?-asymmetric carbons were both established as R using molecular rotation data.

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/content/journal/micro/10.1099/00221287-132-6-1547
1986-06-01
2021-10-28
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