FABP2 and metabolic dysfunction-associated steatotic liver disease: The fatty acid-binding protein 2 and fatty acid transport protein 5, encoded by FABP2 and SLC27A5, respectively, are involved in transport and processing of long chain fatty acids.9 Auinger et al91 explored the rs56225452 variant of FATP5 (SLC27A5) on a cohort of 103 male patients with NAFLD.