NCBI Accession #
NP_171897.2
NCBI GenBank Nucleotide #
NM_100282.4
NCBI Official Full Name
phospholipid sterol acyl transferase 1
NCBI Official Symbol
PSAT1
NCBI Official Synonym Symbols
ATPSAT1; enhanced response to Phytophthora 1; ERP1; F21M11.5; F21M11_5; phospholipid sterol acyl transferase 1
NCBI Protein Information
phospholipid sterol acyl transferase 1
UniProt Synonym Gene Names
LCAT2; PSAT1
UniProt Protein Name
Phospholipid--sterol O-acyltransferase
UniProt Synonym Protein Names
Lecithin-cholesterol acyltransferase-like 2
UniProt Primary Accession #
Q4VCM1
UniProt Secondary Accession #
Q9ZWC1
UniProt Related Accession #
Q4VCM1
UniProt Comments
Involved in lipid catabolism. Essential for sterol esters biosynthesis in leaves and seeds, but not in flowers. Plays a role in controlling the free sterol content of leaves. Catalyzes the transacylation of acyl groups from phospholipids to a variety of different sterols. Prefers phosphatidylethanolamine over phosphatidylcholine as an acyl donor. Not active toward neutral lipids. Highly specific for position sn-2, which in plant lipids is essentially devoid of saturated acyl groups. Broad sterol specificity (cholesterol > campesterol > sitosterol > stigmasterol), but no activity with lupeol or beta-amyrin.