重组人FcγRIIB/CD32b(His-Avi标签)|Recombinant Human Fc gamma RIIB/CD32b
产品说明书
FAQ
COA
已发表文献
Receptors for the Fc region of IgG (Fc gamma Rs) are members of the Ig superfamily that function in the activation or inhibition of immune responses such as degranulation, phagocytosis, ADCC (antibody-dependent cellular toxicity), cytokine release, and B cell proliferation. The Fc gamma Rs have been divided into three classes based on close relationships in their extracellular domains; these groups are designated Fc gamma RI (also known as CD64), Fc gamma RII (CD32), and Fc gamma RIII (CD16). Each group may be encoded by multiple genes and exist in different isoforms depending on species and cell type. The CD64 proteins are high affinity receptors (~10-8-10-9 M) capable of binding monomeric IgG, whereas the CD16 and CD32 proteins bind IgG with lower affinities (~10-6-10-7 M) only recognizing IgG aggregates surrounding multivalent antigens. Fc gamma Rs that deliver an activating signal either have an intrinsic immunoreceptor tyrosine-based activation motif (ITAM) within their cytoplasmic domains or associate with one of the ITAM-bearing adapter subunits, FcR gamma or zeta. The only inhibitory member in human and mouse, Fc gamma RIIB, has an intrinsic cytoplasmic immunoreceptor tyrosine-based inhibitory motif (ITIM). The coordinated functioning of activating and inhibitory receptors is necessary for successful initiation, amplification, and termination of immune responses.
产品性质
|
别名（Synonyms） |
Fc gamma RII; Fc gamma RIIB; CD32; CD32b; CDw32; FCG2; IGFR2; CD32A; FCG2 ; FcGR; FCGR2; FCGR21; FCGR2A |
|
Uniprot No. |
P31994-1 |
|
表达区间及表达系统（Source） |
Recombinant Human Fc gamma RIIB/CD32b Protein is expressed from HEK293 Cells with His tag and Avi tag at the C-terminal. It contains Ala46-Pro217. |
|
分子量(Molecular Weight) |
The protein has a predicted MW of 22.5 kDa. Due to glycosylation, the protein migrates to 32-37 kDa based on Tris-Bis PAGE result. |
|
外观(Physical Appearance） |
Sterile Filtered White lyophilized (freeze-dried) powder. |
|
纯度（Purity） |
> 95% as determined by SDS-PAGE and HPLC |
|
活性（Activity） |
SPR Data：Human Fc gamma RIIB, His Tag captured on CM5 Chip via anti-His antibody can bind Rituximab, hFc Tag with an affinity constant of 9.4μM as determined in SPR assay. |
|
内毒素（Endotoxin） |
< 1.0 EU per 1μg of the protein by the LAL method. |
|
制剂（Formulation） |
Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization. |
|
复溶（Reconstitution） |
Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/mL is recommended (usually we use 1 mg/mL solution for lyophilization). Dissolve the lyophilized protein in distilled water. |
运输与保存方法
冰袋运输。-20℃至-80℃保存，一年有效期。
复溶后，–20 至 -80°C，在未开封状态下保存 3-6 个月。复溶后，2-8°C 保存 2-7 天。
建议第一次使用时分装冻存，避免反复冻融。
注意事项
1.避免反复冻融。
2.为了您的安全和健康，请穿实验服并戴一次性手套操作。
3.本产品仅作科研用途！
产品数据
HB220624
Receptors for the Fc region of IgG (Fc gamma Rs) are members of the Ig superfamily that function in the activation or inhibition of immune responses such as degranulation, phagocytosis, ADCC (antibody-dependent cellular toxicity), cytokine release, and B cell proliferation. The Fc gamma Rs have been divided into three classes based on close relationships in their extracellular domains; these groups are designated Fc gamma RI (also known as CD64), Fc gamma RII (CD32), and Fc gamma RIII (CD16). Each group may be encoded by multiple genes and exist in different isoforms depending on species and cell type. The CD64 proteins are high affinity receptors (~10-8-10-9 M) capable of binding monomeric IgG, whereas the CD16 and CD32 proteins bind IgG with lower affinities (~10-6-10-7 M) only recognizing IgG aggregates surrounding multivalent antigens. Fc gamma Rs that deliver an activating signal either have an intrinsic immunoreceptor tyrosine-based activation motif (ITAM) within their cytoplasmic domains or associate with one of the ITAM-bearing adapter subunits, FcR gamma or zeta. The only inhibitory member in human and mouse, Fc gamma RIIB, has an intrinsic cytoplasmic immunoreceptor tyrosine-based inhibitory motif (ITIM). The coordinated functioning of activating and inhibitory receptors is necessary for successful initiation, amplification, and termination of immune responses.
产品性质
|
别名（Synonyms） |
Fc gamma RII; Fc gamma RIIB; CD32; CD32b; CDw32; FCG2; IGFR2; CD32A; FCG2 ; FcGR; FCGR2; FCGR21; FCGR2A |
|
Uniprot No. |
P31994-1 |
|
表达区间及表达系统（Source） |
Recombinant Human Fc gamma RIIB/CD32b Protein is expressed from HEK293 Cells with His tag and Avi tag at the C-terminal. It contains Ala46-Pro217. |
|
分子量(Molecular Weight) |
The protein has a predicted MW of 22.5 kDa. Due to glycosylation, the protein migrates to 32-37 kDa based on Tris-Bis PAGE result. |
|
外观(Physical Appearance） |
Sterile Filtered White lyophilized (freeze-dried) powder. |
|
纯度（Purity） |
> 95% as determined by SDS-PAGE and HPLC |
|
活性（Activity） |
SPR Data：Human Fc gamma RIIB, His Tag captured on CM5 Chip via anti-His antibody can bind Rituximab, hFc Tag with an affinity constant of 9.4μM as determined in SPR assay. |
|
内毒素（Endotoxin） |
< 1.0 EU per 1μg of the protein by the LAL method. |
|
制剂（Formulation） |
Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization. |
|
复溶（Reconstitution） |
Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/mL is recommended (usually we use 1 mg/mL solution for lyophilization). Dissolve the lyophilized protein in distilled water. |
运输与保存方法
冰袋运输。-20℃至-80℃保存，一年有效期。
复溶后，–20 至 -80°C，在未开封状态下保存 3-6 个月。复溶后，2-8°C 保存 2-7 天。
建议第一次使用时分装冻存，避免反复冻融。
注意事项
1.避免反复冻融。
2.为了您的安全和健康，请穿实验服并戴一次性手套操作。
3.本产品仅作科研用途！
产品数据
HB220624
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