Anti-Intestinal FABP/FABP2 Antibody Picoband®

FABP 2, Fatty acid-binding protein 2, is a protein that in humans is encoded by the FABP2 gene. Using a human cDNA probe, the gene is assigned to chromosome 4 in somatic cell hybrids. FABP 2 gene contains four exons and is an abundant cytosolic protein in small intestine epithelial cells. The FABPs belong to a multigene family with nearly twenty identified members. And FABPs are divided into at least three distinct types, namely the hepatic-, intestinal- and cardiac-type. They form 14-15 kDa proteins and are thought to participate in the uptake, intracellular metabolism and/or transport of long-chain fatty acids. Also, they may be responsible in the modulation of cell growth and proliferation.

A synthetic peptide corresponding to a sequence at the N-terminus of human FABP2/I-FABP, different from the related mouse sequence by seven amino acids, and from the related rat sequence by six amino acids.

FABP are thought to play a role in the intracellular transport of long-chain fatty acids and their acyl-CoA esters. FABP2 is probably involved in triglyceride-rich lipoprotein synthesis. Binds saturated long-chain fatty acids with a high affinity, but binds with a lower affinity to unsaturated long- chain fatty acids. FABP2 may also help maintain energy homeostasis by functioning as a lipid sensor.

1. Baier, L. J., Sacchettini, J. C., Knowler, W. C., Eads, J., Paolisso, G., Tataranni, P. A., Mochizuki, H., Bennett, P. H., Bogardus, C., Prochazka, M.An amino acid substitution in the human intestinal fatty acid binding protein is associated with increased fatty acid binding, increased fat oxidation, and insulin resistance.J. Clin. Invest. 95: 1281-1287, 1995. 2. Georgopoulos, A., Aras, O., Tsai, M. Y.Codon-54 polymorphism of the fatty acid-binding protein 2 gene is associated with elevation of fasting and postprandial triglyceride in type 2 diabetes.J. Clin. Endocr. Metab. 85: 3155-3160, 2000. 3. Sparkes, R. S., Mohandas, T., Heinzmann, C., Gordon, J. I., Klisak, I., Zollman, S., Sweetser, D. A., Ragunathan, L., Winokur, S., Lusis, A. J.Human fatty acid binding protein assignments intestinal to 4q28-4q31 and liver to 2p11. (Abstract) Cytogenet. Cell Genet. 46: 697 only, 1987.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.