Cynomolgus Siglec-3 / CD33 Protein, His Tag
分子別名(Synonym)
CD33,SIGLEC3,gp67
表達區(qū)間及表達系統(tǒng)(Source)
Cynomolgus Siglec-3, His Tag (CD3-C52H4) is expressed from human 293 cells (HEK293). It contains AA Met 16 - Leu 228 (Accession # XP_045235686.1).
Predicted N-terminus: Met 16
蛋白結(jié)構(gòu)(Molecular Characterization)
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 25.7 kDa. The protein migrates as 38-43 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
內(nèi)毒素(Endotoxin)
Less than 1.0 EU per μg by the LAL method.
純度(Purity)
>90% as determined by SDS-PAGE.
制劑(Formulation)
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重構(gòu)方法(Reconstitution)
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存儲(Storage)
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.
背景(Background)
骨髓細胞表面抗原CD33也被稱為SIGLEC3、Siglecs(唾液酸結(jié)合Ig樣凝集素)和GP67,是一種單通道I型膜蛋白,屬于免疫球蛋白超家族和SIGLEC(唾液酸連接Ig類凝集素)家族。人CD33/Siglec-3 cD編碼一個364個氨基酸(aa)的多肽,具有疏水信號肽、N端Ig樣V型結(jié)構(gòu)域、一個Ig樣C2型結(jié)構(gòu)域,一個跨膜區(qū)和一個細胞質(zhì)尾部。CD33/Siglec-3通常被認為是髓系特異性的,但也可以在一些淋巴細胞上發(fā)現(xiàn)。在免疫反應中,CD33/Siglec-3可能通過其SH2結(jié)構(gòu)域招募細胞質(zhì)磷酸酶,阻斷信號分子去磷酸化的信號轉(zhuǎn)導,從而對配體誘導的酪氨酸磷酸化起到抑制受體的作用。CD33/Siglec-3誘導急性髓系白血病細胞凋亡。
關鍵字: Siglec-3;Siglec-3蛋白;Siglec-3重組蛋白;ACRO;百普賽斯;
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