This family contains acyltransferases involved in phospholipid biosynthesis and other proteins of unknown function [1]. This family also includes tafazzin Swiss:Q16635, the Barth syndrome gene [2].

1: Barth syndrome may be due to an acyltransferase deficiency. Neuwald AF; Curr Biol 1997;7:465-466. PMID:9259571

2: A novel X-linked gene, G4.5. is responsible for Barth syndrome. Bione S, D'Adamo P, Maestrini E, Gedeon AK, Bolhuis PA, Toniolo D; Nat Genet 1996;12:385-389. PMID:8630491