title: Chemical composition of Eubacterium nodatum cell wall peptidoglycan.
abstract: The structure of Eubacterium nodatum cell wall peptidoglycan was investigated. The peptide subunit of E. nodatum peptidoglycan has the following structure: L-Ala-D-Glu (Gly)-L-Orn-D-Ala. The carboxyl group of alanine occupying position 4 is attached to the delta-amino group of ornithine of an other subunit by the cross-linking bridge L-Ala-L-Ala-L-Orn. All glycine molecules are connected with the alpha-carboxyl group of glutamic acid with the ratio being 0.5-1. The hydrolysis of E. nodatum peptidoglycan by the S. albus G enzyme proceeds primarily due to the activity of alanyl-alanine endopeptidase, ornithyl-ornithine endopeptidase, ornithyl-alanine endopeptidase, N-acetyl-muramyl-alanine amidase, N-acetylmuramidase and N-acetylglucosaminidase.
authors.affiliation: Department of Microbiology, Okayama University Dental School, Japan.
authors.forename: A I
authors.initials: AI
authors.lastname: Severin
authors.forename: S
authors.initials: S
authors.lastname: Kokeguchi
authors.forename: K
authors.initials: K
authors.lastname: Kato
mesh_terms: D000596:Amino Acids / Q000032:analysis; D002473:Cell Wall / Q000032:analysis; D002850:Chromatography, Gel; D004590:Electrophoresis, Paper; D005051:Eubacterium / Q000032:analysis* / Q000648:ultrastructure; D010457:Peptidoglycan / Q000032:analysis*; D013302:Streptomyces / Q000201:enzymology
chemical_list: D000596:Amino Acids; D010457:Peptidoglycan