Volume 26, Issue 8 pp. 1391-1406
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Conformational behavior of the polysaccharide backbone of murein

B. Leps

B. Leps

Institute of Crystallography, Free University of Berlin, D-1000 Berlin 33, Takustrasse 6

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H. Labischinski

Corresponding Author

H. Labischinski

Robert Koch-Institute of the Federal Health Office, Berlin, D-1000 Berlin 65, Nordufer 20

Robert Koch-Institute of the Federal Health Office, Berlin, D-1000 Berlin 65, Nordufer 20, F.R.G.Search for more papers by this author
H. Bradaczek

H. Bradaczek

Institute of Crystallography, Free University of Berlin, D-1000 Berlin 33, Takustrasse 6, F.R.G.

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First published: August 1987
Citations: 7

Abstract

The energetically possible conformations for the alternating heteropolysaccharide backbone of murein, consisting of N-acetylglucosamine and N-acetylmuramic acid, were calculated using an empirical approach. The calculations were carried out for regular as well as for random-chain polymers, resulting in a model for the saccharide strands featuring extended chains with a length increment of 0.98–1.02 nm per disaccharide unit and peptide attachment sites at every second saccharide residuum pointing into all directions with propagation angles of 80–100° between consecutive sites.

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