A complex of enzymes that synthesize the peptidoglycan cell wall structure.

Bacterial proteins that share the property of binding irreversibly to PENICILLINS and other ANTIBACTERIAL AGENTS derived from LACTAMS. The penicillin-binding proteins are primarily enzymes involved in CELL WALL biosynthesis including MURAMOYLPENTAPEPTIDE CARBOXYPEPTIDASE; PEPTIDE SYNTHASES; TRANSPEPTIDASES; and HEXOSYLTRANSFERASES.

Synonyms: Penicillin Binding Protein 1, Penicillin Binding Protein 2, Penicillin Binding Protein 3, Penicillin Binding Protein 4, Protein 1A, Penicillin-Binding, Penicillin-Binding Protein 1b, Peptidoglycan Synthetase, Penicillin Binding Protein 5, Penicillin Binding Protein 6, Penicillin Binding Protein 7, Penicillin-Binding Protein 6, Penicillin-Binding Proteins, Penicillin-Binding Protein 7, Penicillin-Binding Protein 2, Penicillin Binding Protein 2a, Penicillin Binding Protein 1A, Penicillin Binding Protein 2b, Penicillin-Binding Protein 3, Penicillin-Binding Protein, Penicillin-Binding Protein 4, Penicillin-Binding Protein 5, Penicillin-Binding Protein-2a, Penicillin-Binding Protein 1, Penicillin Binding Protein, Penicillin-Binding Protein 2b, Penicillin-Binding Protein 1A, Penicillin-Binding Protein 2a, Synthetase, Peptidoglycan, 0, Penicillin Binding Protein 1b, Proteins, Penicillin-Binding, Protein 1b, Penicillin-Binding, Penicillin Binding Proteins, 9042-06-2