Lipoyl(octanoyl) transferase

Lipoyl(octanoyl) transferase
Identifiers
EC no.	2.3.1.181
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

In enzymology, a lipoyl(octanoyl) transferase (EC 2.3.1.181) is an enzyme that catalyzes the chemical reaction

octanoyl-[acyl-carrier-protein] + protein ${\displaystyle \rightleftharpoons }$ protein N⁶-(octanoyl)lysine + acyl carrier protein

Thus, the two substrates of this enzyme are octanoyl-[acyl-carrier-protein] and protein, whereas its two products are protein N6-(octanoyl)lysine and acyl carrier protein.

This enzyme belongs to the family of transferases, specifically those acyltransferases transferring groups other than aminoacyl groups. The systematic name of this enzyme class is octanoyl-[acyl-carrier-protein]:protein N-octanoyltransferase. Other names in common use include LipB, lipoyl (octanoyl)-[acyl-carrier-protein]-protein, N-lipoyltransferase, lipoyl (octanoyl)-acyl carrier protein:protein transferase, lipoate/octanoate transferase, lipoyltransferase, octanoyl-[acyl carrier protein]-protein N-octanoyltransferase, and lipoyl(octanoyl)transferase. This enzyme participates in lipoic acid metabolism.

References

• Broadwater JA, Haas JA, Fox BG, Booker SJ (2005). "Expression, purification, and physical characterization of Escherichia coli lipoyl(octanoyl)transferase". Protein Expr. Purif. 39 (2): 269–82. doi:10.1016/j.pep.2004.10.021. PMID   15642479.
• Vanden Boom TJ, Reed KE, Cronan JE (1991). "Lipoic acid metabolism in Escherichia coli: isolation of null mutants defective in lipoic acid biosynthesis, molecular cloning and characterization of the E. coli lip locus, and identification of the lipoylated protein of the glycine cleavage system". J. Bacteriol. 173 (20): 6411–20. doi:10.1128/jb.173.20.6411-6420.1991. PMC   208974 . PMID   1655709.
• Jordan SW, Cronan JE (1997). "A new metabolic link. The acyl carrier protein of lipid synthesis donates lipoic acid to the pyruvate dehydrogenase complex in Escherichia coli and mitochondria". J. Biol. Chem. 272 (29): 17903–6. doi: 10.1074/jbc.272.29.17903 . PMID   9218413.
• Zhao X, Miller JR, Jiang Y, Marletta MA, Cronan JE (2003). "Assembly of the covalent linkage between lipoic acid and its cognate enzymes". Chem. Biol. 10 (12): 1293–302. doi: 10.1016/j.chembiol.2003.11.016 . PMID   14700636.
• Wada M, Yasuno R, Jordan SW, Cronan JE, Wada H (2001). "Lipoic acid metabolism in Arabidopsis thaliana: cloning and characterization of a cDNA encoding lipoyltransferase". Plant Cell Physiol. 42 (6): 650–6. doi: 10.1093/pcp/pce081 . PMID   11427685.
• Perham RN (2000). "Swinging arms and swinging domains in multifunctional enzymes: catalytic machines for multistep reactions". Annu. Rev. Biochem. 69: 961–1004. doi:10.1146/annurev.biochem.69.1.961. PMID   10966480.