Fatty Acid-Binding Protein 2 (I-FABP) is a protein encoded by the FABP2 gene that binds saturated long-chain fatty acids. I-FABP is specifically and abundantly present in epithelial cells of the small intestine, higher I-FABP concentrations indicate mucosal damage of the small intestine. This gene has a polymorphism that is associated with increased fat oxidation and insulin resistance.
Swiss-Prot Accession Number: P12104
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