This entry represents a conserved region found in Phosphatidate phosphatase APP1 from yeast, which contains the catalytic motif DXDX(T/V) [1,2], present in other Mg+2-dependent phosphatases. This domain has a weak sequence similarity to the haloacid dehalogenase-like domain [1]. APP1 catalyses the dephosphorylation of phosphatidate to yield diacylglycerol and may play a role in vesicular trafficking through its phosphatidate phosphatase activity at cortical actin patches [1,2].

1: The Saccharomyces cerevisiae actin patch protein App1p is a phosphatidate phosphatase enzyme. Chae M, Han GS, Carman GM; J Biol Chem. 2012;287:40186-40196. PMID:23071111

2: Characterization of the yeast actin patch protein App1p phosphatidate phosphatase. Chae M, Carman GM; J Biol Chem. 2013;288:6427-6437. PMID:23335564