Human B-Cell Receptor CD22 (CD22) Protein
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Description
Human B-Cell Receptor CD22 (CD22) Protein is a recombinant Human protein expressed in HEK293 cells.
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Product specifications
| Category | Proteins and Peptides |
| Host | HEK293 cells |
| Origin | Human |
| Observed MW | Molecular Weight: Calculated MW: 76.2 kDa Observed MW (SDS-PAGE): 100-140 kDa Sequence Fragment: Asp20-Arg687 Tag: C-terminal His tag |
| Expression | Recombinant |
| Purity | >95% (SDS-PAGE) |
| Size 1 | 20 µg |
| Size 2 | 100 µg |
| Form | Lyophilized Reconstitute in sterile H2O. Do not vortex. |
| Tested Applications | SDS-PAGE |
| Buffer | Prior to lyophilization: PBS, pH 7.4, containing 5% - 8% Trehalose, Mannitol and 0.01% Tween-80. |
| Availability | Shipped within 5-15 working days. |
| Storage | Store lyophilized between -20 °C and -80 °C. |
| Dry Ice | No |
| UniProt ID | P20273 |
| Alias | SIGLEC2,SIGLEC-2,B-cell receptor CD22,B-lymphocyte cell adhesion molecule,BL-CAM,Sialic acid-binding Ig-like lectin 2,T-cell surface antigen Leu-14 |
| Background | Protein CD22 |
| Status | RUO |
| Note | This product is for research use only. Not for human consumption, cosmetic, therapeutic or diagnostic use. |
Descripción
CD22, also known as Siglec-2, is a member of the sialic acid-binding immunoglobulin-like lectins (Siglec) family and is predominantly expressed on B cells. It plays a crucial role in modulating B-cell receptor (BCR) signaling and maintaining B-cell tolerance, making it an essential molecule in the regulation of the immune system. CD22 is primarily found on mature B cells, acting both as an inhibitory coreceptor to dampen BCR signaling and as an adhesion molecule involved in cell-cell interactions. CD22 is essential for maintaining the delicate balance between immune activation and tolerance, preventing excessive immune responses that could lead to autoimmune diseases. It is an inhibitory receptor that modulates B-cell activity by recruiting SHP-1, a phosphatase that negatively regulates B-cell signaling pathways. In this capacity, CD22 fine-tunes the immune response to antigens, ensuring that B cells are appropriately activated and preventing autoimmunity.
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