| Description: | Sialic-acid-binding immunoglobulin-like lectin (Siglec) that plays a role in mediating cell-cell interactions and in maintaining immune cells in a resting state. Preferentially recognizes and binds alpha-2,3- and more avidly alpha-2,6-linked sialic acid-bearing glycans. Upon engagement of ligands such as C1q or syalylated glycoproteins, two immunoreceptor tyrosine-based inhibitory motifs (ITIMs) located in CD33 cytoplasmic tail are phosphorylated by Src-like kinases such as LCK. These phosphorylations provide docking sites for the recruitment and activation of protein-tyrosine phosphatases PTPN6/SHP-1 and PTPN11/SHP-2. In turn, these phosphatases regulate downstream pathways through dephosphorylation of signaling molecules. One of the repressive effect of CD33 on monocyte activation requires phosphoinositide 3-kinase/PI3K. | 
| Product name: | Human CD33 Recombinant Protein (hFc-His Tag) | 
| Synonyms: | CD33,SIGLEC3,gp67 | 
| Type: | protein | 
| Size: | 50 µg | 
| Name: | CD33 | 
| Origin: | Human | 
| Source: | HEK293 | 
| Protein Type: | Recombinant | 
| Application: | Contact Technical Support | 
| Purity: | > 95% | 
| Purification: | affinity purification | 
| Format: | Lyophilized | 
| Conjugate: | C-Human Fc and 6×His tag | 
| Storage: | Store at -80°C for 12 months (Avoid repeated freezing and thawing) | 
| Usage: | Research use only | 
| Buffer: | Lyophilized from sterile PBS, pH 7.4. Normally 5 % - 8 % trehalose is added as protectants before lyophilization. | 
| Reconstitution: | Reconstitute with deionized water | 
| Sequence: | CD33(Asp18-His259)+hFc(Glu99-Ala330)+6×His tag | 
| Gene ID: | 945 | 
| Uniprot: | P20138 | 
| Molecular Weight: | 53.8 kDa |