LCLAT1
Domain
The HXXXXD motif is essential for acyltransferase activity and may constitute the binding site for the phosphate moiety of the glycerol-3-phosphate.
Function
Exhibits acyl-CoA:lysocardiolipin acyltransferase (ALCAT) activity; catalyzes the reacylation of lyso-cardiolipin to cardiolipin (CL), a key step in CL remodeling (By similarity). Recognizes both monolysocardiolipin and dilysocardiolipin as substrates with a preference for linoleoyl-CoA and oleoyl-CoA as acyl donors (By similarity). Also exhibits 1-acyl-sn-glycerol-3-phosphate acyltransferase activity (AGPAT) activity; converts 1-acyl-sn-glycerol-3- phosphate (lysophosphatidic acid or LPA) into 1,2-diacyl-sn-glycerol-3- phosphate (phosphatidic acid or PA) by incorporating an acyl moiety at the sn-2 position of the glycerol backbone (PubMed:16620771). Possesses both lysophosphatidylinositol acyltransferase (LPIAT) and lysophosphatidylglycerol acyltransferase (LPGAT) activities (PubMed:19075029). Required for establishment of the hematopoietic and endothelial lineages (By similarity).
Pathway
Phospholipid metabolism; CDP-diacylglycerol biosynthesis; CDP-diacylglycerol from sn-glycerol 3-phosphate: step 2/3.
Sequence Similarities
Belongs to the 1-acyl-sn-glycerol-3-phosphate acyltransferase family.
Tissue Specificity
Expressed at higher level in heart, kidney and pancreas than in brain, spleen, liver, lung, small intestine and placenta.
Cellular localization
- Endoplasmic reticulum membrane
- Multi-pass membrane protein
Alternative names
AGPAT8, ALCAT1, LYCAT, UNQ1849/PRO3579, LCLAT1, Lysocardiolipin acyltransferase 1, 1-acylglycerol-3-phosphate O-acyltransferase 8, Acyl-CoA:lysocardiolipin acyltransferase 1, 1-AGP acyltransferase 8, 1-AGPAT 8