3LK7

The Crystal Structure of UDP-N-acetylmuramoylalanine-D-glutamate (MurD) ligase from Streptococcus agalactiae to 1.5A


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APyr_redoxe3lk7A4 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: MurCD/PglD N-terminal domain-likeF: Pyr_redoxECOD (1.6)
AMur_ligase_Me3lk7A2 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: Mur_ligase_MECOD (1.6)
AMur_ligase_Ce3lk7A3 A: a/b three-layered sandwichesX: MurD-like peptide ligases, peptide-binding domain (From Topology)H: MurD-like peptide ligases, peptide-binding domain (From Topology)T: MurD-like peptide ligases, peptide-binding domainF: Mur_ligase_CECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF08245Mur ligase middle domain (Mur_ligase_M)Mur ligase middle domain- Domain
PF02875Mur ligase family, glutamate ligase domain (Mur_ligase_C)Mur ligase family, glutamate ligase domainThis family contains a number of related ligase enzymes which have EC numbers 6.3.2.*. This family includes: MurC (Swiss:P17952), MurD (Swiss:P14900), MurE (Swiss:P22188), MurF (Swiss:P11880), Mpl (Swiss:P37773) and FolC (Swiss:P08192). MurC, MurD, ...This family contains a number of related ligase enzymes which have EC numbers 6.3.2.*. This family includes: MurC (Swiss:P17952), MurD (Swiss:P14900), MurE (Swiss:P22188), MurF (Swiss:P11880), Mpl (Swiss:P37773) and FolC (Swiss:P08192). MurC, MurD, Mure and MurF catalyse consecutive steps in the synthesis of peptidoglycan. Peptidoglycan consists of a sheet of two sugar derivatives, with one of these N-acetylmuramic acid attaching to a small pentapeptide. The pentapeptide is is made of L-alanine, D-glutamic acid, Meso-diaminopimelic acid and D-alanyl alanine. The peptide moiety is synthesised by successively adding these amino acids to UDP-N-acetylmuramic acid. MurC transfers the L-alanine, MurD transfers the D-glutamate, MurE transfers the diaminopimelic acid, and MurF transfers the D-alanyl alanine. This family also includes Folylpolyglutamate synthase that transfers glutamate to folylpolyglutamate.
Domain
PF21799Mur ligase MurD-like, N-terminal domain (MurD-like_N)Mur ligase MurD-like, N-terminal domainThis domain is found at the N-terminal end of Mur ligases predominantly from proteobacteria, including UDP-N -acetylmuramoylalanine--D-glutamate ligase from Escherichia coli (MurD). Proteins in this family play a crucial role in the intracellular ste ...This domain is found at the N-terminal end of Mur ligases predominantly from proteobacteria, including UDP-N -acetylmuramoylalanine--D-glutamate ligase from Escherichia coli (MurD). Proteins in this family play a crucial role in the intracellular steps leading to the synthesis of bacterial peptidoglycan. MurD shows a three-domain topology, with the N-terminal (this entry) responsible for binding the UDP-precursor. This domain shows a Rossmann fold [1-6].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
UDP-N-acetylmuramoylalanine--D-glutamate ligase