Isoprenoid quinones of Campylobacter cryaerophila, C. cinaedi, C. fennelliae, C. hyointestinalis, C. pylori, and "C. upsaliensis" - PubMed (original) (raw)

Comparative Study

Isoprenoid quinones of Campylobacter cryaerophila, C. cinaedi, C. fennelliae, C. hyointestinalis, C. pylori, and "C. upsaliensis"

C W Moss et al. J Clin Microbiol. 1990 Feb.

Abstract

The isoprenoid quinone contents of Campylobacter cryaerophila, C. cinaedi, C. fennelliae, C. hyointestinalis, C. pylori, and "C. upsaliensis" were determined by reverse-phase thin-layer and high-performance liquid chromatography. All six of these recently named Campylobacter species contained menaquinone-6 (MK-6), but only C. hyointestinalis and "C. upsaliensis" contained 2,[5 or 8]-dimethyl-3-farnesyl-farnesyl-1,4-naphthoquinone (*MK-6), a previously described novel menaquinone of the Campylobacter genus. C. cryaerophila, C. cinaedi, C. fennelliae, and C. pylori contained an unidentified quinone (Un-MK-6) with a molecular weight of 580 and a base peak ion of m/e = 225 by mass spectrometry but with chromatographic properties different from those of MK-6. *MK-6 and Un-MK-6 are important chemotaxonomic markers of Campylobacter and Campylobacter-like organisms.

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