Glycerol-3-phosphate acyltransferase ATS12, chloroplastic

UniProtKB accession:  P10349

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UniProtKB description:  Esterifies the acyl-group from acyl-acyl carrier proteins (acyl-ACPs) to the sn-1 position of glycerol-3-phosphate (Ref.3). The physiological acyl donors in chloroplasts are acyl-ACPs, but acyl-CoAs are used as artificial donor for in vitro reactions (Probable). The enzyme from chilling-resistant plants discriminates against non-fluid palmitic acid and selects oleic acid whereas the enzyme from sensitive plants accepts both fatty acids (Ref.3). Squash is chilling-sensitive (Probable). Does not seem to discriminate between the acyl-ACP thioesters 18:1-ACP, 18:0-ACP and 16:0-ACP (Ref.3). Exhibits higher selectivity for 16:0-CoA than 18:1-CoA in vitro (PubMed:9016814, PubMed:14684887).