Bovine fatty acid binding proteins. Isolation and characterisation of two cardiac fatty acid binding proteins that are distinct from corresponding hepatic proteins.

When a 100,000 X g supernatant from bovine heart was incubated with [1-14C]oleic acid and subjected to isoelectric focusing, two fatty acid binding proteins (FABPs) with isoelectric points at 4.9 and 5.1 were detected.

Fatty-acid-binding proteins. Occurrence of two fatty-acid-binding proteins in bovine liver cytosol and their binding of fatty acids, cholesterol, and other lipophilic ligands.

Fatty-acid-binding proteins (FABPs) are known as cytosolic binding sites for fatty acids and their CoA esters. Radioactively labeled and fluorescent fatty acids were used to locate and identify these proteins in bovine liver cytosol. The occurrence of two species of FABPs was demonstrated and these were designated pI6.