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Pack Size:100μg/vial
Validated Species:Human, Rat
Application:IHC, ICC, WB
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Product Name Anti-CD79a Picoband™ Antibody
SKU/Catalog Number PB9168
Description Rabbit IgG polyclonal antibody for B-cell antigen receptor complex-associated protein alpha chain(CD79A) detection. Tested with WB, IHC-P, ICC in Human;Rat.
Cite This Product Anti-CD79a Picoband™ Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PB9168)
Replacement Item This antibody may replace the following items: sc-20064|sc-390372|sc-8503|sc-13529|sc-53209|sc-53208|sc-25604|sc-8502 from Santa Cruz Biotechnology.
Host Rabbit
Isotype N/A
Validated Species Human, Rat
Application IHC, ICC, WB

*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) and ICC.
*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 E.coli-derived human CD79a recombinant protein (Position: T121-P226). Human CD79a shares 91% amino acid (aa) sequence identity with mouse CD79a.
Cross Reactivity No cross reactivity with other proteins
Pack Size 100μg/vial


Clonality Polyclonal
Form Lyophilized
Contents Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 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.
Isotype N/A

Protein Target Info (Source:

You can check the tissue specificity below for information on selecting positive and negative control.

Gene Name CD79A
Protein Name B-cell antigen receptor complex-associated protein alpha chain
Molecular Weight 25038 MW
Protein Function Required in cooperation with CD79B for initiation of the signal transduction cascade activated by binding of antigen to the B-cell antigen receptor complex (BCR) which leads to internalization of the complex, trafficking to late endosomes and antigen presentation. Also required for BCR surface expression and for efficient differentiation of pro- and pre-B-cells. Stimulates SYK autophosphorylation and activation. Binds to BLNK, bringing BLNK into proximity with SYK and allowing SYK to phosphorylate BLNK. Also interacts with and increases activity of some Src- family tyrosine kinases. Represses BCR signaling during development of immature B-cells. .
Tissue Specificity B-cells.
Sequence Similarities Contains 1 Ig-like C2-type (immunoglobulin-like) domain.
Subcellular Localization Cell membrane; Single-pass type I membrane protein. Following antigen binding, the BCR has been shown to translocate from detergent-soluble regions of the cell membrane to lipid rafts although signal transduction through the complex can also occur outside lipid rafts. .
Uniprot ID P11912
Alternative Names B-cell antigen receptor complex-associated protein alpha chain;Ig-alpha;MB-1 membrane glycoprotein;Membrane-bound immunoglobulin-associated protein;Surface IgM-associated protein;CD79a;CD79A;IGA, MB1;
Research Areas |immunology|adaptive immunity|b cells| immunology|immunoglobulins|receptors| cancer|tumor immunology|cd markers| stem cells|hematopoietic progenitors|lymphoid|b lymphocytic lineage|
*if product is indicated to react with multiple species, protein info is based on the human gene.

Background for B-cell antigen receptor complex-associated protein alpha chain

Cluster of differentiation CD79A also known as B-cell antigen receptor complex-associated protein alpha chain and MB-1 membrane glycoprotein, is a protein that in humans is encoded by the CD79A gene. It is mapped to 19q13.2. CD79A is a membrane protein with an extracellular immunoglobulin domain, a single span transmembrane region and a short cytoplasmic domain. Genetic deletion of the transmembrane exon of CD79A results in loss of CD79A protein and a complete block of B cell development at the pro to pre B cell transition. Similarly, humans with homozygous splice variants in CD79A predicted to result in loss of the transmembrane region and a truncated or absent protein display agammaglobulinemia and no peripheral B cells.

Anti-CD79a Picoband™ Antibody Images

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Anti-CD79a Picoband™ Antibody
Anti- CD79A picoband antibody, PB9168, Western blotting
All lanes: Anti CD79a (PB9168) at 0.5ug/ml
WB: Recombinant human CD79a Protein 0.5ng
Predicted bind size: 45KD
Observed bind size: 45KD
Anti-CD79a Picoband™ Antibody
Anti- CD79A picoband antibody, PB9168, Western blotting
All lanes: Anti CD79a (PB9168) at 0.5ug/ml
Lane 1: Human Placenta Tissue Lysate at 50ug
Lane 2: Rat Spleen Tissue Lysate at 50ug
Predicted bind size: 25KD
Observed bind size: 37KD
Anti-CD79a Picoband™ Antibody
Anti- CD79A picoband antibody, PB9168, IHC(P)
IHC(P): Human Tonsil Tissue
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Customer Q&As

Q: Do you offer BSA-free antibodies? Keyword: Bovine serum albumin, carrier protein, conjugation
A: Yes, please contact us at for more information about BSA-free antibodies and availability. The new BSA-free formula uses trehalose as a replacement to BSA. We have tested many alternative chemicals and found that trehalose protects the antibodies the best.
Q: Can I conjugate markers to this antibody? Can I link custom conjugates to this antibody? Keyword: conjugation
A: The antibody is stored with BSA and cannot be conjugated with markers. Carrier free antibodies are available upon request. Please contact
Q: What should I use for negative control?
A: Please contact us for negative control suggestions. You can also check expression databases such as genecards, uniprot etc. Due to logistic reasons, we do not sell serum or lysates that we use internally for positive or negative control.
Q: Where can I find troubleshooting information? What should I do if I have unexpected bands, high background, no signal, weak signal
A: You can find Boster's troubleshoot guides under tech support tab. Please contact us for further assistance on troubleshooting your experiment.
Q: What is the immunogen sequence of this antibody? Is this antibody polyclonal or monoclonal?
A: You can find the immunogen sequence under "Immunogen" and clonality in the product name.
Q: What is the expected band size? Why is it different than the observed band size?
A: The expected band size is predicted on the size of the protein. The actual band size may be affected by a few other factors including but not limited to:
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.,
Q: What is the suggested dilution ratio for Western Blot (WB), Immunohistochemistry (IHC) and or ELISA standards? What is the optimal pH for the sample?
A: Check the datasheet for the product for details on dilution ratios for different experiments. You can find the datasheet button on the right side of the product page.
Q: What is the protocol you used for your Western blotting (WB) and Immunohistochemistry (IHC)?
A: Check our protocols under the tech support tab.