Known Activities	murein polymerase (EC 2.4.1.129).
Mechanism	Inverting
3D Structure Status	lysozyme-type
Catalytic Nucleophile/Base	Glu
Note	There are two categories of enzymes in this family : monofunctional (just the GT51 module) or bifunctional (GT51 module attached to a penicillin-binding transpeptidase module). These enzymes utilise Und-PP-MurAc-(GlcNAc)-pentapeptide as the sugar donor.
External resources	InterPro; PFAM;
Statistics	GenBank accession (4135); Uniprot accession (1932); PDB accession (12); 3D entries (5); cryst (0)