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Pack Size:100μg/vial
Sample Size:30ug for $99, contact us for details
Application:IHC, WB
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Product Name Anti-NOX2/gp91phox Antibody
SKU/Catalog Number PA1667
Description Rabbit IgG polyclonal antibody for Cytochrome b-245 heavy chain(CYBB) detection. Tested with WB, IHC-P in Human;Mouse;Rat.
Cite This Product Anti-NOX2/gp91phox Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA1667)
Replacement Item This antibody may replace the following items: sc-130543|sc-130548|sc-130549|sc-20782|sc-27635|sc-27636|sc-27637|sc-5826|sc-5827|sc-74514 from Santa Cruz Biotechnology.
Host Rabbit
Isotype N/A
Validated Species Human, Mouse, Rat
Predicted Species Hamster

*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.

Application IHC, 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).
*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 in the middle region of human NOX2(442-459aa YWLCRDTHAFEWFADLLQ), identical to the related rat and mouse sequences.
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 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.
Isotype N/A

Protein Target Info (Source:

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

Gene Name CYBB
Protein Name Cytochrome b-245 heavy chain
Molecular Weight 65336 MW
Protein Function Critical component of the membrane-bound oxidase of phagocytes that generates superoxide. It is the terminal component of a respiratory chain that transfers single electrons from cytoplasmic NADPH across the plasma membrane to molecular oxygen on the exterior. Also functions as a voltage-gated proton channel that mediates the H(+) currents of resting phagocytes. It participates in the regulation of cellular pH and is blocked by zinc.
Tissue Specificity Detected in neutrophils (at protein level). .
Sequence Similarities Contains 1 FAD-binding FR-type domain.
Subcellular Localization Cell membrane; Multi-pass membrane protein.
Uniprot ID P04839
Alternative Names Cytochrome b-245 heavy chain;1.-.-.-;CGD91-phox;Cytochrome b(558) subunit beta;Cytochrome b558 subunit beta;Heme-binding membrane glycoprotein gp91phox;NADPH oxidase 2;Neutrophil cytochrome b 91 kDa polypeptide;Superoxide-generating NADPH oxidase heavy chain subunit;gp91-1;gp91-phox;p22 phagocyte B-cytochrome;CYBB;NOX2;
Research Areas |immunology|adaptive immunity|t cells|cytotoxic cells| cancer|cancer metabolism|cellular metabolic process| metabolism|types of disease|
*if product is indicated to react with multiple species, protein info is based on the human gene.

Background for Cytochrome b-245 heavy chain

NOX2(NADPH OXIDASE 2), also called CYBB(CYTOCHROME b(-245), BETA SUBUNIT), p91-PHOX or GP91-1, is a human gene encoding a glycoprotein.NOX2 is an essential component of phagocytic NADPH-oxidase, a membrane-bound enzyme complex that generates large quantities of microbicidal superoxide and other oxidants upon activation. It is mapped on Xp11.4. NOX2 is a heterodimer composed of an alpha chain of relative molecular mass 23 kD and a beta chain of 76 to 82 kD. NOX2 assembled on DC phagosomes in a gp91-phox subunit-dependent manner, and that reactive oxygen species were produced in a more sustained manner in immature DC phagosomes than in macrophage phagosomes. As a major player in innate immune responses in neutrophils, NOX2 is also involved in adaptive immunity through its activity in DCs. In heart cells, physiologic stretch rapidly activates reduced-form NOX2 to produce reactive oxygen species(ROS) in a process dependent on microtubules(X-ROS signaling).

Anti-NOX2/gp91phox Antibody Images

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Anti-NOX2/gp91phox Antibody
Anti-NOX2/gp91phox antibody, PA1667, Western blotting
Lane 1: HELA Cell Lysate
Lane 2: JURKAT Cell Lysate
Lane 3: MCF-7 Cell Lysate
Lane 4: SMMC Cell Lysate
Anti-NOX2/gp91phox Antibody
Anti-NOX2/gp91phox antibody, PA1667, IHC(P)
IHC(P): Human Intestinal Cancer Tissue

Customer Reviews


"This NOX2 antibody is highly specific. Highly recommended!"


Applications Western Blot
Sample 22RV1 cytosolic and membrane fractions
Detection Enhanced chemiluminescence

"We used this antibody to study the inhibitory effect of GPE on hypoxia induced translocation of gp91phox subunit from cytosol to membrane in our recently published paper (Scientific Reports 6, Article number: 23135 (2016); doi:10.1038/srep23135). This antibody is very much specific in our in vitro system."

Write a review for PA1667


Du Z, Yang Q, Liu L, Li S, Zhao J, Hu J, Liu C, Qian D, Gao C. Neuroscience. 2015 Feb 12;286:281-92. Doi: 10.1016/J.Neuroscience.2014.11.061. Epub 2014 Dec 8. Nadph Oxidase 2-Dependent Oxidative Stress, Mitochondrial Damage And Apoptosis In The Ve...
Du Z, Yang Q, Zhou T, Liu L, Li S, Chen S, Gao C. Mol Med Rep. 2014 Dec;10(6):2861-7. Doi: 10.3892/Mmr.2014.2653. Epub 2014 Oct 15. D?
Wang Y, Wang Y, Liu D, Wang W, Zhao H, Wang M, Yin H. Carbohydr Polym. 2015 Jul 10;125:135-45. Doi: 10.1016/J.Carbpol.2015.02.012. Epub 2015 Feb 19. Cordyceps Sinensis Polysaccharide Inhibits Pdgf-Bb-Induced Inflammation And Ros Production In Huma...
Liao Y, Liu P, Guo F, Zhang Zy, Zhang Z. Plos One. 2013 Jul 24;8(7):E68963. Doi: 10.1371/Journal.Pone.0068963. Print 2013. Oxidative Burst Of Circulating Neutrophils Following Traumatic Brain Injury In Human.

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: Is your western blot protocol provided from the website applicable for all your antibodies? Keyword: applications, WB
A: The protocol is applicable for all our antibodies in WB, the NC Membrane(0.45μm or 0.22μm) and transfer time(70 mins or 50 mins) depends on the protein molecular weight, details can be found in included protocol.
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.
Q: What are some alternative names that could be used to describe this product?
A: Some common names include but are not limited to gp91 phox antibody, gp91phox antibody, gp91-phox antibody, nox2 antibody