D-alanine-D-alanine ligase
You don't need to be Editor-In-Chief to add or edit content to WikiDoc. You can begin to add to or edit text on this WikiDoc page by clicking on the edit button at the top of this page. Next enter or edit the information that you would like to appear here. Once you are done editing, scroll down and click the Save page button at the bottom of the page.
In enzymology, a D-alanine-D-alanine ligase (EC 6.3.2.4) is an enzyme that catalyzes the chemical reaction
- ATP + 2 D-alanine
ADP + phosphate + D-alanyl-D-alanine
Thus, the two substrates of this enzyme are ATP and D-alanine, whereas its 3 products are ADP, phosphate, and D-alanyl-D-alanine.
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 D-alanine:D-alanine ligase (ADP-forming). Other names in common use include MurE synthetase [ambiguous], alanine:alanine ligase (ADP-forming), and alanylalanine synthetase. This enzyme participates in d-alanine metabolism and peptidoglycan biosynthesis. At least one compound, Phosphinate is known to inhibit this enzyme.
Structural studies
As of late 2007, 8 structures have been solved for this class of enzymes, with PDB accession codes 1EHI, 1IOV, 1IOW, 2DLN, 2FB9, 2I80, 2I87, and 2I8C.
References
- IUBMB entry for 6.3.2.4
- BRENDA references for 6.3.2.4 (Recommended.)
- PubMed references for 6.3.2.4
- PubMed Central references for 6.3.2.4
- Google Scholar references for 6.3.2.4
- Ito, E and Strominger JL (1962). "Enzymatic synthesis of the peptide in bacterial uridine nucleotides II. Enzymatic synthesis and addition of D-alanyl-D-alanine". J. Biol. Chem. 237: 2696–2703.
- Neuhaus FC (1962). "Kinetic studies on D-Ala-D-Ala synthetase". Fed. Proc. 21: 229.
- van Heijenoort J (2001). "Recent advances in the formation of the bacterial peptidoglycan monomer unit". Nat. Prod. Rep. 18: 503–19. PMID 11699883.
External links
- The CAS registry number for this enzyme class is 9023-63-6.
Gene Ontology (GO) codes
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
