Isoprenoid quinone content and cellular fatty acid composition of Campylobacter species.
A total of 36 strains of Campylobacter species were examined for isoprenoid quinones and cellular fatty acids. The isoprenoid quinone content was determined by reverse-phase high-pressure liquid chromatography, and the fatty acids were determined by capillary gas-liquid chromatography. All Campylobacter species contained menaquinone-6 (2-methyl-3-farnesyl-farnesyl-1,4-naphthoquinone) and a methyl-substituted menaquinone-6 (2,[5 or 8]-dimethyl-3-farnesyl-farnesyl-1,4-napthoquinone) as the major isoprenoid quinones. The latter menaquinone has not been reported in other bacteria and may prove to be a useful chemical marker of Campylobacter species. Campylobacter jejuni and most Campylobacter coli were distinguished from other campylobacteria by the presence of a C19 cyclopropane acid, and Campylobacter sputorum subsp. mucosalis differed from other species by the presence of lauric acid.
D002167:Campylobacter / Q000032:analysis* / Q000145:classification; D002168:Campylobacter fetus / Q000032:analysis* / Q000145:classification; D003521:Cyclopropanes / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis*; D007850:Lauric Acids / Q000032:analysis; D011809:Quinones / Q000032:analysis*; D013045:Species Specificity; D014812:Vitamin K / Q000031:analogs & derivatives / Q000032:analysis; D024482:Vitamin K 2 / Q000031:analogs & derivatives*
D003521:Cyclopropanes; D005227:Fatty Acids; D007850:Lauric Acids; D011809:Quinones; C028775:cyclopropane fatty acids; D024482:Vitamin K 2; D014812:Vitamin K; C042455:menaquinone 6