Peptidoglycan

One repeating unit of the polymer

The overall shape of peptidoglycan

Peptidoglycan or murein is a polymer that makes up the cell walls of bacteria. It is made of many sugars (or monosaccharides), and amino acids.

Peptidoglycan is made of chains of sugars. Each chain has N-acetylglucosamine and N-acetylmuramic acid, one after the other. The chains are linked to each other by 4-5 amino acids, and other sugar molecules, such as glycine.^[1]

Peptidoglycan Media

Peptidoglycan, consists of alternating residues of β-(1,4) linked N-Acetylmuramic acid and N-Acetylglucosamine
Gram-positive cell wall
Penicillin binding protein forming cross-links in newly formed bacterial cell wall.

References

↑ Voet, Donald; Voet, Judith G. (2011). Biochemistry (4th ed.). John Wiley & Sons, Inc. pp. 376. ISBN 9780470570951.

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[Voet-1] Voet, Donald; Voet, Judith G. (2011). Biochemistry (4th ed.). John Wiley & Sons, Inc. pp. 376. ISBN 9780470570951.

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