This antibody recognizes an epitope between domains 2 and 5 of CD222 (IGF2 receptor), a ubiquitously expressed 250 kDa multifunctional type I transmembrane protein. The majority of CD222 is found in the late endosomal/prelysosomal compartment, 5-10% in the plasma membrane and the truncated (220 kDa) form of CD222 is present in human and bovine serum.
CD222 (CIMPR, cation-independent mannose 6-phosphate receptor; IGF2 receptor) is a ubiquitously expressed 250 kDa transmembrane protein. No more than 10% of CD222 is present on the cell surface where it serves as a multifunctional receptor. Intracellular (major) fraction of CD222 is involved in transport of newly synthesized lysosomal enzymes modified by mannose 6-phosphate from Golgi apparatus to lysosomes. The cell surface CD222 binds and internalizes exogeneous mannose 6-phosphate-containing ligands. Importantly, CD222 is crutial for internalization and degradation of insulin-like growth factor 2, thus controling cell growth. CD222 also complexes CD87 (urokinase-type plasminogen-activator receptor), plasminogen and latent TGF-beta, last but not least CD222 serves as a receptor for heparanase and even for Listeria.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: 300 kDa mannose 6-phosphate receptor; Cation-independent mannose-6-phosphate receptor; CD222; CI Man-6-P receptor; CI-MPR; CIMPR; IGF-II receptor; IGF2R; Insulin-like growth factor 2 receptor; Insulin-like growth factor II receptor; M6P-R; M6P/IGF2 receptor; M6P/IGF2R; MPR 300; MPR1; MPRI
Gene Aliases: CD222; CI-M6PR; CIMPR; IGF2R; M6P-R; M6P/IGF2R; MPR 300; MPR1; MPR300; MPRI
UniProt ID: (Human) P11717
Entrez Gene ID: (Human) 3482
Molecular Function: receptor