title: Trihexosyldiacylglycerol and acyltrihexosyldiacylglycerol as lipid anchors of the lipoteichoic acid of Lactobacillus casei DSM 20021.
abstract: The lipoteichoic acid of Lactobacillus casei DSM 20021 was isolated. It consists of glycolipid and a poly(glycerophosphate), 37-44 units in length. The lipid portions can be released by treatment with hydrofluoric acid or acetic acid. They were determined to be 1,2-di-O-acyl-3-O-[O-beta-D-glucopyranosyl-(1 leads to 6)-O-alpha-D-galacto-pyranosyl-(1 leads to 2)-alpha-D-glucopyranosyl]glycerol and 1,2-di-O-acyl-3-O-[O-beta-D-glucopyranosyl-(1 leads to 6)-O-alpha-D-galactopyranosyl-(1 leads to 2)-(6-O-acyl-alpha-D-glucopyranosyl)]glycerol. Lipoteichoic acid with a third carbohydrate-linked fatty acid in the glycolipid portion represents a novel subclass.
mesh_terms: D002848:Chromatography, DEAE-Cellulose; D002849:Chromatography, Gas; D002850:Chromatography, Gel; D002855:Chromatography, Thin Layer; D004075:Diglycerides / Q000302:isolation & purification*; D005989:Glycerides / Q000302:isolation & purification*; D006017:Glycolipids; D006868:Hydrolysis; D007780:Lacticaseibacillus casei / Q000032:analysis*; D008055:Lipids / Q000302:isolation & purification*; D013058:Mass Spectrometry; D013682:Teichoic Acids / Q000302:isolation & purification*
chemical_list: D004075:Diglycerides; D005989:Glycerides; D006017:Glycolipids; D008055:Lipids; D013682:Teichoic Acids