Data & Images
|Product Name||Anti-CD22/Siglec 2 Antibody|
|Description||Rabbit IgG polyclonal antibody for B-cell receptor CD22(CD22) detection. Tested with WB, IHC-P in Human.|
|Cite This Product||Anti-CD22/Siglec 2 Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA1018-1)|
|Replacement Item||This antibody may replace the following items: sc-7032|sc-18900|sc-7307|sc-7031|sc-7323|sc-73363|sc-18909|sc-7932|sc-377304|sc-271579|sc-20053|sc-136440|sc-136507|sc-53032|sc-53031|sc-136440-X|sc-136507-X from Santa Cruz Biotechnology.|
*This antibody is predicted to react with the above species based on antigen sequence similarities. Our Boster Guarantee covers the use of this product with the above species.
*Our Boster Guarantee covers the use of this product in the above tested applications.
**For positive and negative control design, consult "Tissue specificity" under Protein Target Info.
|Recommended Detection Systems||Boster recommends Enhanced Chemiluminescent Kit with anti-Rabbit IgG (EK1002) for Western blot, and HRP Conjugated anti-Rabbit IgG Super Vision Assay Kit (SV0002-1) for IHC(P).
*Blocking peptide can be purchased at $50. Contact us for more information
**Boster also offers various secondary antibodies for Immunoflourescecne and IHC. Take advantage of the buy 1 primary antibody get 1 secondary antibody for free promotion for the entire year 2017!
|Immunogen||A synthetic peptide corresponding to a sequence at the C-terminus of human CD22(832-847aa ERPQAQENVDYVILKH).|
|Cross Reactivity||No cross reactivity with other proteins|
|Contents||Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.
*carrier free antibody available upon request.
|Concentration||Add 0.2ml of distilled water will yield a concentration of 500ug/ml.|
|Storage||At -20˚C for one year. After reconstitution, at 4˚C for one month. It can also be aliquotted and stored frozen at -20˚C for a longer time.Avoid repeated freezing and thawing.|
|Purification||Immunogen affinity purified.|
Protein Target Info (Source: Uniprot.org)
You can check the tissue specificity below for information on selecting positive and negative control.
|Protein Name||B-cell receptor CD22|
|Molecular Weight||95348 MW|
|Protein Function||Mediates B-cell B-cell interactions. May be involved in the localization of B-cells in lymphoid tissues. Binds sialylated glycoproteins; one of which is CD45. Preferentially binds to alpha-2,6-linked sialic acid. The sialic acid recognition site can be masked by cis interactions with sialic acids on the same cell surface. Upon ligand induced tyrosine phosphorylation in the immune response seems to be involved in regulation of B-cell antigen receptor signaling. Plays a role in positive regulation through interaction with Src family tyrosine kinases and may also act as an inhibitory receptor by recruiting cytoplasmic phosphatases via their SH2 domains that block signal transduction through dephosphorylation of signaling molecules.|
|Sequence Similarities||Belongs to the immunoglobulin superfamily. SIGLEC (sialic acid binding Ig-like lectin) family.|
|Subcellular Localization||Cell membrane; Single-pass type I membrane protein.|
|Alternative Names||B-cell receptor CD22;B-lymphocyte cell adhesion molecule;BL-CAM;Sialic acid-binding Ig-like lectin 2;Siglec-2;T-cell surface antigen Leu-14;CD22;CD22;SIGLEC2;|
|Research Areas|||immunology|adaptive immunity|b cells| cancer|tumor immunology|tumor-associated antigens|tumor biomarkers|tumor antigens| stem cells|hematopoietic progenitors|lymphoid|b lymphocytic lineage||
Background for B-cell receptor CD22
Dilution Ratios/Recommended Concentrations
At Boster we strive to provide the best Anti-CD22/Siglec 2 Antibody by testing all applications on non-spiked tissues and cell lines to ensure that the affinity of the antibody is enough to react to the endogenouse level of the target protein. Read more about our QC panel here.
|Recommended dilution ratios are listed below:|
Immunohistochemistry(Paraffin-embedded Section), 0.5-1μg/ml, Human, By Heat|
Western blot, 0.1-0.5μg/ml, Human
**Boster provides high sensitivity secondary antibody kits for Western blotting and IHC. For more info see Related Products below.
Anti-CD22/Siglec 2 Antibody Images
Click the images to enlarge.
WB: RAJI Cell Lysate
IHC(P): Human Tonsil Tissue
1. Post-translational modification:phosphorylation, methylation, glycosylation etc. These modifications prevent SDS molecules from binding to the target protein and thus make the band size appear larger than expected
2. Post-translational cleavage: this can cause smaller bands and or multiple bands
3. Alternative splicing: the same gene can have alternative splicing patterns generating different size proteins, all with reactivities to the antibody.
4. Amino Acid R chain charge: SDS binds to positive charges. The different size and charge of the Amino Acid side chains can affect the amount of SDS binding and thus affect the observed band size.
5. Multimers: Multimers are usually broken up in reducing conditions. However if the interactions between the multimers are strong, the band may appear higher.,