FABP1 （Fatty acid binding protein1） encodes the fatty acid binding protein found in liver. FABP1 is composed of ten antiparallel beta strands that form a barrel with a bigger binding pocket than the other FABPs allowing it to accommodate two fatty acid. This protein binds free fatty acids and their coenzyme A derivatives， bilirubin， and some other small molecules in the cytoplasm； it may be involved in intracellular lipid transport and metabolism.
