There are a number of ELISA Kits available for the measurement of I-BALB, another term for the human protein, fatty acid binding protein 6. Other synonyms may include: gastrotropin, fatty acid binding protein 6 ileal, ileal bile acid binding protein, ileal lipid-binding protein, intestinal 15 kDa protein, I-15P, and I-BABP. It is encoded by the FABP6 gene to yield a protein 128 amino acids in length and 14.4 kDa in size. However, there are up to 2 reported isoforms. The protein is categorized into the Calycin superfamily, Fatty-acid binding protein (FABP) family. Versions of I-BALB are present in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.