Fc-gamma RIIB/CD32b human
SIGMA/SRP6396 - recombinant, expressed in HEK 293 cells, ≥95% (SDS-PAGE)
Synonym: CD32; CDw32; FCG2; FCGR2B; IGFR2
Product Type: Chemical
assay | ≥95% (SDS-PAGE) |
biological source | human |
form | lyophilized |
impurities | <1 EU/μg endotoxin (LAL test) |
mol wt | calculated mol wt 20.2 kDa |
observed mol wt 23-33 kDa (DTT-reduced. Protein migrates due to different glycosylation. Ala 46 is the predicted N-terminus.) | |
packaging | pkg of 10 and 50 μg |
recombinant | expressed in HEK 293 cells |
shipped in | wet ice |
storage temp. | −20°C |
tag | 6-His tagged (C-terminus) |
UniProt accession no. | P31994 ![]() ![]() |
General description: | Receptors for the Fc region of IgG (Fc γ R) are members of the Ig superfamily that function in the activation or inhibition of immune responses. Three classes of human Fc γ Rs: RI (CD64), RII (CD32), and RIII (CD16), which generate multiple isoforms, are recognized. There are three genes for human Fcγ RII /CD32 (A, B, and C) and one for mouse Fcγ RII B (CD32B). CD32 is a low affinity receptor for IgG. Low affinity immunoglobulin gamma Fc region receptor II-b (FCGR2B) also known as CD32b, FCG2, IGFR2. CD32B is expressed on B cells and myeloid dendritic cells. Ligation of CD32B on B cells down regulates antibody production and may, in some circumstances, promote apoptosis. Co-ligation of CD32B on dendritic cells inhibits maturation and blocks cell activation. CD32B may also be a target for monoclonal antibody therapy for malignancies. |
Physical form: | Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization. |
Reconstitution: | Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 μg/mL. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C. |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 3 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Purity | ≥95% (SDS-PAGE) |
Storage Temp. | −20°C |
UNSPSC | 12352200 |