ProSpec,sCD23 Human,可溶性 CD23 人重组体PRO-1789

Low affinity immunoglobulin epsilon Fc receptor, Lymphocyte IgE receptor, Fc-epsilon-RII, BLAST-2, Immunoglobulin E-binding factor, CD23 antigen, FCER2, CD23, FCE2, CD23A, IGEBF, CLEC4J.

CD23 is a 45kDa glycoprotein, which is present on a subpopulation of freshly isolated peripheral blood and tonsil B cells and strongly expressed on EBV-transformed B lymphoblasts. The CD23 molecule is identical to the low affinity IgE receptor found on B cells. Expression of CD23 has been detected in neoplastic cells from cases of B cell chronic lymphocyctic leukaemia and some cases of centroblastic/centrocytic lymphoma.

CD23 是一种 45kDa 糖蛋白，存在于新鲜分离的外周血和扁桃体 B 细胞亚群中，并在 EBV 转化的 B 淋巴母细胞上强烈表达。 CD23 分子与 B 细胞上发现的低亲和力 IgE 受体相同。 已在 B 细胞慢性淋巴细胞白血病病例和一些中心母细胞/中心细胞淋巴瘤病例的肿瘤细胞中检测到 CD23 的表达。

Escherichia Coli.

Sterile Filtered White lyophilized powder.

Lyophilized from a 0.2µm filtered concentrated solution in PBS, pH 7.4.

MELQVSSGFV CNTCPEKWIN FQRKCYYFGK GTKQWVHARY ACDDMEGQLV SIHSPEEQDF LTKHASHTGS WIGLRNLDLK GEFIWVDGSH VDYSNWAPGE PTSRSQGEDC VMMRGSGRWN DAFCDRKLGA WVCDRLATCT PPASEGSAES MGPDSRPDPD GRLPTPSAPL HS

It is recommended to reconstitute the lyophilized sCD23 in sterile 18M-cm H2O not less than 100µg/ml, which can then be further diluted to other aqueous solutions.

Greater than 97.0% as determined by:
Analysis by RP-HPLC.
Analysis by -PAGE.

Lyophilized sCD23 although stable at room temperature for 3 weeks, should be stored desiccated below -18°C. Upon reconstitution sCD23 should be stored at 4°C between 2-7 days and for future use below -18°C. For long term storage it is recommended to add a carrier protein . Please prevent freeze-thaw cycles.

The ED50 is determined by its ability to induce TNF-alpha production by human PBMCs.

ProSpec’s products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.