title: The glycerol teichoic acid from the cell wall of Bacillus stearothermophilus B65.
abstract: 1. A glycerol teichoic acid has been extracted from cell walls of Bacillus stearothermophilus B65 and its structure examined. 2. Trichloroacetic acid-extractable teichoic acid accounted for 68% of the total cell-wall phosphorus and residual material could be hydrolysed to a mixture of products including those characteristic of glycerol teichoic acids. 3. The extracted polymer is composed of glycerol, phosphoric acid, d-glucose and d-alanine. 4. Hydrolysis of the polymer with alkali gave glycerol, 1-O-alpha-d-glucopyranosylglycerol and its monophosphates, glycerol mono- and di-phosphate, as well as traces of a glucosyldiglycerol triphosphate and a glucosylglycerol diphosphate. 5. The teichoic acid is a polymer of 18 or 19 glycerol phosphate units having alpha-d-glucopyranosyl residues attached to position 1 of 14 or 15 of the glycerol residues. 6. The glycerol residues are joined by phosphodiester linkages involving positions 2 and 3 in each glycerol. 7. d-Alanine is in ester linkage to the hydroxyl group at position 6 of approximately half of the glucose residues. 8. One in every 13 or 12 polymer molecules bears a phosphomonoester group on position 3 of a glucose residue, the possible significance of which in linkage of the polymer to other wall constituents is discussed.
mesh_terms: D000143:Acids / Q000032:analysis*; D000641:Ammonia; D001407:Bacillus / Q000032:analysis*; D002473:Cell Wall / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D002854:Chromatography, Paper; D005990:Glycerol; D010504:Periodic Acid; D010710:Phosphates / Q000032:analysis
chemical_list: D000143:Acids; D010710:Phosphates; D010504:Periodic Acid; D000641:Ammonia; D005990:Glycerol