Function
Binds free fatty acids and their coenzyme A derivatives, bilirubin, and some other small molecules in the cytoplasm. May be involved in intracellular lipid transport. Binds one trans-parinaric acid molecule or two cis-parinaric acid molecules. Affinity for mono- and polyunsaturated fatty acids is higher than that for saturated ones. Affinity for fatty acid coenzyme A derivatives, lysophosphatidic acid, lysophospholipds, retinoids, bilirubin and bile salts is similar to or higher than that for fatty acids. Affinity for prostaglandins, peroxisomal proliferators, bezafibrate and clofibrate is moderate to low.