Article (Scientific journals)
Structure des parois de Bacillus megaterium KM II. étude des complexes mucopeptidique et phosphomucopolysaccharidique
Ghuysen, Jean-Marie; Leyh-Bouille, Mélina; Dierickx, L.
1962In Biochimica et Biophysica Acta, 63, p. 297-307
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Keywords :
bacillus megaterium; glycosaminoglycans; mucoproteins
Abstract :
[en] Bacillus megaterium KM cell walls are composed of two distinct heteropolymers. The first, referred as to X-teichoic acid, presents a molecular weight of about 11000. It consists of about 10 subunits containing P, glucose and GlcNHAc in the molar ratio 1/2/1.3 as well as a polyol compound. It does not play any role in maintaining the rigidity of the wall. The second can be visualized as a three-dimensional network of structural subunits consisting of four mucopeptide residues with an average composition GlcNHAc1- (N-acetylmuramic acid)1-Ala2.20-Glu1- ([alpha],[epsilon]-diaminopimelic acid)1. They also contain glucose. This mucopeptide is the basal structure of the wall. The two heteropolymers are present in equimolar proportions. They are covalently bound through glucosido-muraminyl bridges branched on some of the alanine residues of the basal mucopeptide thanks to amidic linkages.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Ghuysen, Jean-Marie ;  Université de Liège - ULiège > Service de Bactériologie
Leyh-Bouille, Mélina;  Université de Liège - ULiège > Service de bactériologie
Dierickx, L.;  Université de Liège - ULiège > Centre National de Production et d'Etude des Substances d'origine microbienne
Language :
French
Title :
Structure des parois de Bacillus megaterium KM II. étude des complexes mucopeptidique et phosphomucopolysaccharidique
Alternative titles :
[en] Structure of the walls of Bacillus megaterium KM. II Study of the mucopeptide and phosphomuco-polysaccharide complexes
Publication date :
24 September 1962
Journal title :
Biochimica et Biophysica Acta
ISSN :
0006-3002
eISSN :
1878-2434
Publisher :
Elsevier, Amsterdam, Netherlands
Volume :
63
Pages :
297-307
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 July 2011

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