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| UDP-N-acetylmuramoyl-L-alanine—D-glutamate ligase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 6.3.2.9 | ||||||||
| CAS no. | 9023-59-0 | ||||||||
| Databases | |||||||||
| BRENDA | enzyme data | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | enzyme entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| Rhea | reactions | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
In enzymology, a UDP-N-acetylmuramoyl-L-alanine—D-glutamate ligase (EC 6.3.2.9) is an enzyme that catalyzes the chemical reaction
- ATP + UDP-N-acetylmuramoyl-L-alanine + D-glutamate ADP + phosphate + UDP-N-acetylmuramoyl-L-alanyl-D-glutamate
The 3 substrates of this enzyme are ATP, UDP-N-acetylmuramoyl-L-alanine, and D-glutamate, whereas its 3 products are ADP, phosphate, and UDP-N-acetylmuramoyl-L-alanyl-D-glutamate.
This enzyme belongs to the family of ligases, specifically those forming carbon-nitrogen bonds as acid-D-amino-acid ligases (peptide synthases). The systematic name of this enzyme class is UDP-N-acetylmuramoyl-L-alanine:D-glutamate ligase (ADP-forming). Other names in common use include MurD synthetase, UDP-N-acetylmuramoyl-L-alanyl-D-glutamate synthetase, uridine diphospho-N-acetylmuramoylalanyl-D-glutamate synthetase, D-glutamate-adding enzyme, D-glutamate ligase, UDP-Mur-NAC-L-Ala:D-Glu ligase, UDP-N-acetylmuramoyl-L-alanine:glutamate ligase (ADP-forming), and UDP-N-acetylmuramoylalanine-D-glutamate ligase. This enzyme participates in d-glutamine and d-glutamate metabolism and peptidoglycan biosynthesis.
Structural studies
[edit]As of late 2007, 9 structures have been solved for this class of enzymes, with PDB accession codes PDB: 1E0D, PDB: 1EEH, PDB: 1UAG, PDB: 2JFF, PDB: 2JFG, PDB: 2JFH, PDB: 2UAG, PDB: 3UAG, and PDB: 4UAG.
See also
[edit]References
[edit]- Ito, E; Strominger JL (1962). "Enzymatic synthesis of the peptide in bacterial uridine nucleotides I. Enzymatic addition of L-alanine, D-glutamic acid, and L-lysine". J. Biol. Chem. 237: 2689–2695. doi:10.1016/S0021-9258(19)73808-3.
- van Heijenoort J (October 2001). "Recent advances in the formation of the bacterial peptidoglycan monomer unit". Natural Product Reports. 18 (5): 503–19. doi:10.1039/a804532a. PMID 11699883.
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