CATH Classification

Domain Context

CATH Clusters

Superfamily Biosynthetic peptidoglycan transglycosylase-like
Functional Family Penicillin-binding protein 1a

Enzyme Information

3.4.16.4
Serine-type D-Ala-D-Ala carboxypeptidase.
based on mapping to UniProt O66874
Preferential cleavage: (Ac)(2)-L-Lys-D-Ala-|-D-Ala. Also transpeptidation of peptidyl-alanyl moieties that are N-acyl substituents of D-alanine.
-!- A group of bacterial enzymes, membrane-bound. -!- Inhibited by beta-lactam antibiotics, which acylate the active site serine in the enzyme. -!- Distinct from EC 3.4.17.14. -!- Belongs to peptidase families S11, S12 and S13.
2.4.1.129
Peptidoglycan glycosyltransferase.
based on mapping to UniProt O66874
(GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys-D-Ala-D-Ala))(n)- diphosphoundecaprenol + GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala-gamma-D-Glu-L-Lys- D-Ala-D-Ala)-diphosphoundecaprenol = (GlcNAc-(1->4)-Mur2Ac(oyl-L-Ala- gamma-D-Glu-L-Lys-D-Ala-D-Ala))(n+1)-diphosphoundecaprenol + undecaprenyl diphosphate.
-!- The enzyme also works when the lysine residue is replaced by meso- 2,6-diaminoheptanedioate (meso-2,6-diaminopimelate, A2pm) combined with adjacent residues through its L-center, as it is in Gram- negative and some Gram-positive organisms. -!- The undecaprenol involved is ditrans,octacis-undecaprenol. -!- Involved in the synthesis of cell-wall peptidoglycan.

UniProtKB Entries (1)

O66874
PBPA_AQUAE
Aquifex aeolicus VF5
Penicillin-binding protein 1A

PDB Structure

PDB 3D3H
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural analysis of the contacts anchoring moenomycin to peptidoglycan glycosyltransferases and implications for antibiotic design.
Yuan, Y., Fuse, S., Ostash, B., Sliz, P., Kahne, D., Walker, S.
Acs Chem.Biol.
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