Selective removal of retinoids and palmitic acid from microsomes by fatty acid binding protein and cellular retinol binding protein.

Studies were conducted to explore the effect of mouse liver cytosolic proteins enriched in fatty acid binding protein or cellular retinol binding protein on the removal of palmitic acid and retinoids from microsomal membranes. When the soluble proteins were incubated with mouse liver microsomes containing (14C)palmitic acid or (3H)retinoids, it was observed that fatty acid binding protein removed selectively the fatty acid and retinyl ester, whereas the retinol was mainly removed by cellular retinol binding protein.