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Human Siglec-3 / CD33 (18-132) Protein, Fc Tag

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分子别名(Synonym)

CD33,SIGLEC3,gp67

表达区间及表达系统(Source)

Human Siglec-3 (18-132), Fc Tag (CD3-H5255) is expressed from human 293 cells (HEK293). It contains AA Pro 18 - His 132 (Accession # P20138-3).

Predicted N-terminus: Pro 18

Request for sequence

蛋白结构(Molecular Characterization)

Online(Pro 18 - His 132) P20138-3

This protein carries a human IgG1 Fc tag at the C-terminus.

The protein has a calculated MW of 38.6 kDa. The protein migrates as 46-55 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>95% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, 150 mM NaCl, pH7.5. Normally trehalose is added as protectant before lyophilization.

Contact us for customized product form or formulation.

重构方法(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.

存储(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:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

Human Siglec-3 (18-132), Fc Tag (Cat. No. CD3-H5255) SDS-PAGE gel

Human Siglec-3 (18-132), Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.

背景(Background)

Myeloid cell surface antigen CD33 is also known as SIGLEC3, Siglecs (sialic acid binding Ig­like lectins) and GP67, is a single-pass type I membrane protein which belongs to the immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family. Human CD33 / Siglec-3 cDNA encodes a 364 amino acid (aa) polypeptide with a hydrophobic signal peptide, an N-­terminal Ig-­like V­-type domain, one Ig­-like C2-­type domains, a transmembrane region and a cytoplasmic tail. CD33 / Siglec-3 usually considered myeloid-specific, but it can also be found on some lymphoid cells. In the immune response, CD33 / Siglec-3 may act as an inhibitory receptor upon ligand induced tyrosine phosphorylation by recruiting cytoplasmic phosphatase(s) via their SH2 domain(s) that block signal transduction through dephosphorylation of signaling molecules. CD33 / Siglec-3 induces apoptosis in acute myeloid leukemia.

 

 

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siglec-3靶点信息
英文全称:Myeloid cell surface antigen CD33
中文全称:髓系细胞表面抗原CD33
种类:Homo sapiens
上市药物数量:1详情
临床药物数量:34详情
最高研发阶段:批准上市
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