Fatty acid transport proteins are a family of trans-membrane transport proteins, which allow and enhance the uptake of long chain fatty acids into cells. This subfamily is part of the solute carrier protein family. Within humans this family contains six very homologous proteins, which are expressed in all tissues of the body which use fatty acids:SLC27A1 (FATP1) Long-chain fatty acid transport protein 1 SLC27A2 (FATP2) Very long-chain acyl-CoA synthetase SLC27A3 (FATP3) Solute carrier family 27 member 3 SLC27A4 (FATP4) Long-chain fatty acid transport protein 4 SLC27A5 (FATP5) Bile acyl-CoA synthetase SLC27A6 (FATP6) Long-chain fatty acid transport protein 6