On the structure of the peptidoglycan of cell walls from Myxobacter AL-1 (Myxobacterales) |
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Authors: | Ebba Harcke Friedrich v. Massow Hans Kühlwein |
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Affiliation: | 1. Botanisches Institut (Lehrstuhl 1) der Universität (TH) Karlsruhe, Karlsruhe, Germany
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Abstract: | Basically the peptidoglycan of Myxobater AL-1 consists of alternating β-1,4-linked N-acetylglucosamic-N-acetylmuramic acid chains. After splitting the aminosugar backbone with a specific algal enzyme three subunits arise: a monomer, a dimer and a trimer. Investigation of the monomer with specific enzymes and comparison of the degradation products to standards derived from other bacterial peptidoglycans suggest the following structure of the monomer peptide: l-alanyl-d-glutamic-l-meso-diaminopimelic-d-alanine. A d-alanyl-d-meso-diaminopimelic acid bond is the bridgebond between the peptides of the subunits. |
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