Smooth muscle fatty acid binding protein: a regulator of smooth muscle contraction?

A fatty acid binding protein has been isolated from chicken gizzard smooth muscle. The partial amino acid sequence (EMBL P80565) of this protein shows high sequence similarities with other members of the fatty acid binding protein family. This is the first fatty acid binding protein isolated from smooth muscle. It may be involved in the regulation of smooth muscle contraction by transporting polyunsaturated fatty acids (e.g. arachidonic acid).