CRABP1 is a member of special carrier proteins for members of the vitamin A family. It is believed that CRABP1 has an essential role in retinoic acid-mediated differentiation and proliferation processes. Though， CRABP1 is structurally similar to the cellular retinol-binding proteins， it binds only retinoic acid at specific sites within the nucleus， which may contribute to vitamin A-directed differentiation in epithelial tissue. CRABP1 is constitutively expressed and is thought to have different functions in the cell than the related CRABP2. CRABP1 forms a beta-barrel structure which accommodates hydrophobic ligands in its interior. Loss of CRABP1 function as a result of hypermethylation of its promoter leads to pathogenesis of papillary thyroid carcinoma. Furthermore， frequent methylation-associated silencing of CRABP1 is linked to esophageal squamous-cell carcinoma.
应用类型
ELISA， Western blot
免疫原
Anti-human CRABP1 mAb is derived from hybridization of mouse F0 myeloma cells with spleen cells from BALB/c mice immunized with recombinant human CRABP1 amino acids 1-137 purified from E. coli.
