In molecular biology the PLAT domain is a protein domain that is found in a variety of membrane or lipid associated proteins. It is called the PLAT (Polycystin-1, Lipoxygenase, Alpha-Toxin) domain<ref name="PUB00018111"> or LH2 (Lipoxygenase homology) domain. The known structure of pancreatic lipase shows this domain binds to procolipase, which mediates membrane association. This domain forms a beta-sandwich composed of two β-sheets of four β-strands each.

Human proteins containing this domain

ALOX12; ALOX12B; ALOX12P2; ALOX15; ALOX15B; ALOX5; ALOXE3; LIPC; LIPG; LOXHD1; LPL; PKD1; PKD1L1; PKD1L2; PKD1L3; PKDREJ; PNLIP; PNLIPRP1; PNLIPRP2; PNLIPRP3; RAB6IP1;