Biology:Lipoate–protein ligase

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Lipoate–protein ligase
Identifiers
EC number2.7.7.63
CAS number144114-18-1
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

Lipoate–protein ligase (EC 2.7.7.63, LplA, lipoate protein ligase, lipoate–protein ligase A, LPL, LPL-B) is an enzyme with systematic name ATP:lipoate adenylyltransferase.[1][2][3][4][5][6][7] This enzyme catalyses the following chemical reaction

(1) ATP + lipoate [math]\displaystyle{ \rightleftharpoons }[/math] diphosphate + lipoyl-AMP
(2) lipoyl-AMP + apoprotein [math]\displaystyle{ \rightleftharpoons }[/math] protein N6-(lipoyl)lysine + AMP

This enzyme requires Mg2+ as a cofactor.

References

  1. "Identification of the gene encoding lipoate-protein ligase A of Escherichia coli. Molecular cloning and characterization of the lplA gene and gene product". The Journal of Biological Chemistry 269 (23): 16091–100. June 1994. PMID 8206909. 
  2. "Purification and properties of the lipoate protein ligase of Escherichia coli". The Biochemical Journal 309 (3): 853–62. August 1995. doi:10.1042/bj3090853. PMID 7639702. 
  3. "Assembly of the covalent linkage between lipoic acid and its cognate enzymes". Chemistry & Biology 10 (12): 1293–302. December 2003. doi:10.1016/j.chembiol.2003.11.016. PMID 14700636. 
  4. "Crystal structure of lipoate-protein ligase A bound with the activated intermediate: insights into interaction with lipoyl domains". The Journal of Biological Chemistry 280 (45): 38081–9. November 2005. doi:10.1074/jbc.M507284200. PMID 16141198. 
  5. "Crystal structure of lipoate-protein ligase A from Escherichia coli. Determination of the lipoic acid-binding site". The Journal of Biological Chemistry 280 (39): 33645–51. September 2005. doi:10.1074/jbc.M505010200. PMID 16043486. 
  6. "A new metabolic link. The acyl carrier protein of lipid synthesis donates lipoic acid to the pyruvate dehydrogenase complex in Escherichia coli and mitochondria". The Journal of Biological Chemistry 272 (29): 17903–6. July 1997. doi:10.1074/jbc.272.29.17903. PMID 9218413. 
  7. "Swinging arms and swinging domains in multifunctional enzymes: catalytic machines for multistep reactions". Annual Review of Biochemistry 69: 961–1004. 2000. doi:10.1146/annurev.biochem.69.1.961. PMID 10966480. 

External links