Reaction: ATP + UDP-N-acetyl-α-D-muramoyl-L-alanyl-D-glutamate + meso-2,6-diaminoheptanedioate = ADP + phosphate + UDP-N-acetyl-α-D-muramoyl-L-alanyl-γ-D-glutamyl-meso-2,6-diaminoheptanedioate
For diagram of reaction, (click here.
Other name(s): MurE synthetase [ambiguous]; UDP-N-acetylmuramoyl-L-alanyl-D-glutamate:meso-2,6-diamino-heptanedioate ligase (ADP-forming); UDP-N-acetylmuramoyl-L-alanyl-D-glutamyl-meso-2,6-diaminopimelate synthetase; UDP-N-acetylmuramoylalanyl-D-glutamate2,6-diaminopimelate ligase
Systematic name: UDP-N-acetylmuramoyl-L-alanyl-D-glutamate:meso-2,6-diaminoheptanedioate γ-ligase (ADP-forming)
Comments: Involved in the synthesis of a cell-wall peptide in bacteria. This enzyme adds diaminopimelate in Gram-negative organisms and in some Gram-positive organisms; in others EC 18.104.22.168 (UDP-N-acetylmuramoyl-L-alanyl-D-glutamate—L-lysine ligase) adds lysine instead. It is the amino group of the L-centre of the diaminopimelate that is acylated.
Comments: Involved with EC 22.214.171.124 (D-alanineD-alanine ligase), EC 126.96.36.199 (UDP-N-acetylmuramateL-alanine ligase), EC 188.8.131.52 (UDP-N-acetylmuramoyl-L-alanineD-glutamate ligase) and EC 184.108.40.206 (UDP-N-acetylmuramoyl-tripeptideD-alanyl-D-alanine ligase) in the synthesis of a cell-wall peptide (click here for diagram). This enzyme adds diaminopimelate in Gram-negative organisms and in some Gram-positive organisms; in others EC 220.127.116.11 (UDP-N-acetylmuramoyl-L-alanyl-D-glutamateL-lysine ligase) adds lysine instead. It is the amino group of the L-centre of the diaminopimelate that is acylated.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number: 9075-09-6
1. Mizuno, Y. and Ito, E. Purification and properties of uridine diphosphate N-acetylmuramyl-L-alanyl-D-glutamate:meso-2,6-diaminopimelate ligase. J. Biol. Chem. 243 (1968) 2665-2672. [PMID: 4967958]
2. van Heijenoort, J. Recent advances in the formation of the bacterial peptidoglycan monomer unit. Nat. Prod. Rep. 18 (2001) 503-519. [PMID: 11699883]