Anti-CEP250 Antibody Picoband®

Centrosome-associated protein CEP250 is a protein that in humans is encoded by the CEP250 gene. This gene encodes a core centrosomal protein required for centriole-centriole cohesion during interphase of the cell cycle. The encoded protein dissociates from the centrosomes when parental centrioles separate at the beginning of mitosis. The protein associates with and is phosphorylated by NIMA-related kinase 2, which is also associated with the centrosome. Alternative splicing results in multiple transcript variants encoding different isoforms.

Gastrotropin; GT; Fatty acid-binding protein 6; Ileal lipid-binding protein; ILBP; Intestinal 15 kDa protein; I-15P; Intestinal bile acid-binding protein; I-BABP; FABP6; ILBP; ILLBP

Isoform 1 is expressed in the jejunum, ileum, cecum and ascending colon intestine. Isoform 2 is xpressed in the gallbladder, duodenum, jejunum, ileum, cecum, ascending, transverse and descending colon, sigmoid colon and rectum. Isoform 2 is expressed in colorectal adenocarcinomas and their adjacent normal mucosa.

Angiogenesis, Cancer, Cardiovascular, Cell Biology, ECM Enzymes, Extracellular Matrix, Invasion/Microenvironment, Protease Inhibitors, Proteolysis/Ubiquitin

Binds to bile acids and is involved in enterohepatic bile acid metabolism. Required for efficient apical to basolateral transport of conjugated bile acids in ileal enterocytes. In vitro binds to bile acids in the order: deoxycholic acid > cholic acid > chenodeoxycholic acid and respective BA conjugation modifies affinities in the order taurine-conjugated > glycine-conjugated > unconjugated bile acids. Stimulates gastric acid and pepsinogen secretion. Essential for the survival of colon cancer cells to bile acid-induced apoptosis.

1. Bahe, S., Stierhof, Y.-D., Wilkinson, C. J., Leiss, F., Nigg, E. A. Rootletin forms centriole-associated filaments and functions in centrosome cohesion. J. Cell Biol. 171: 27-33, 2005. 2. de Castro-Miro, M., Tonda, R., Escudero-Ferruz, P., Andres, R., Mayor-Lorenzo, A., Castro, J., Ciccioli, M., Hidalgo, D. A., Rodriguez-Ezcurra, J. J., Farrando, J., Perez-Santonja, J. J., Cormand, B., Marfany, G., Gonzalez-Duarte, R. Novel candidate genes and a wide spectrum of structural and point mutations responsible for inherited retinal dystrophies revealed by exome sequencing. PLoS One 11: e0168966, 2016. Note: Electronic Article. 3. Fry, A. M., Mayor, T., Meraldi, P., Stierhof, Y.-D., Tanaka, K., Nigg, E. A. C-Nap1, a novel centrosomal coiled-coil protein and candidate substrate of the cell cycle-regulated protein kinase Nek2. J. Cell Biol. 141: 1563-1574, 1998.

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 freezing and thawing.