Fc gamma RIIB/CD32b Protein, Human (HEK293, His-Avi)

Fc gamma RIIB/CD32b Protein, a low-affinity receptor for immunoglobulins gamma, plays a pivotal role in immune responses. It mediates phagocytosis of immune complexes and modulates antibody production by B-cells. Upon binding, it down-modulates cell activation triggered through BCR, TCR, or other Fc receptors. Isoform IIB1 lacks endocytosis or phagocytosis capacity, while IIB2 doesn't induce phagocytosis. Interactions with INPP5D/SHIP1, FGR, and LYN are observed. Fc gamma RIIB/CD32b Protein, Human (HEK293, His-Avi) is the recombinant human-derived Fc gamma RIIB/CD32b protein, expressed by HEK293, with C-Avi, C-His labeled tag. The total length of Fc gamma RIIB/CD32b Protein, Human (HEK293, His-Avi) is 172 a.a., with molecular weight of 32-37 kDa.

Fc gamma RIIB/CD32b Protein serves as a receptor for the Fc region of complexed or aggregated immunoglobulins gamma, displaying low affinity. It plays a pivotal role in various effector and regulatory functions, including the phagocytosis of immune complexes and the modulation of antibody production by B-cells. Upon binding to this receptor, there is a down-modulation of the preceding state of cell activation triggered through antigen receptors on B-cells (BCR), T-cells (TCR), or another Fc receptor. Notably, isoform IIB1 is unable to mediate endocytosis or phagocytosis, while isoform IIB2 does not induce phagocytosis. Fc gamma RIIB/CD32b interacts with INPP5D/SHIP1, FGR, and LYN.

Human

HEK293

C-Avi;C-His

P31994 (A46-P217)

2213  [NCBI]

32-37 kDa

Greater than 95% as determined by Tris-Bis PAGE.

<1 EU/μg, determined by LAL method.