Show Order Info
Pack Size:100μg/vial
Sample Size:30ug for $99, contact us for details
Data & Images


Product Name Anti-CYP11B1 Antibody
SKU/Catalog Number PA1699
Description Rabbit IgG polyclonal antibody for Cytochrome P450 11B1, mitochondrial(CYP11B1) detection. Tested with WB in Human.
Cite This Product Anti-CYP11B1 Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA1699)
Replacement Item This antibody may replace the following items: sc-47647|sc-47649|sc-374096|sc-47652|sc-377248|sc-377401 from Santa Cruz Biotechnology.
Host Rabbit
Isotype N/A
Validated Species Human
Application 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.
*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 CYP11B1(436-450aa RNFYHVPFGFGMRQC).
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 CYP11B1
Protein Name Cytochrome P450 11B1, mitochondrial
Molecular Weight 57573 MW
Protein Function Has steroid 11-beta-hydroxylase activity. In addition to this activity, the 18 or 19-hydroxylation of steroids and the aromatization of androstendione to estrone have also been ascribed to cytochrome P450 XIB.
Subcellular Localization Mitochondrion membrane.
Uniprot ID P15538
Alternative Names Cytochrome P450 11B1, mitochondrial;CYPXIB1;Cytochrome P-450c11;Cytochrome P450C11;Steroid 11-beta-hydroxylase;;CYP11B1;S11BH;
Research Areas |cardiovascular|lipids / lipoproteins|lipid metabolism|cytochromes| signal transduction|growth factors/hormones|mitochondrial| cancer|cancer metabolism|metabolic signaling pathway|metabolism of lipids and lipoproteins|hormone biosynthesis| metabolism|pathways and processes|mitochondrial metabolism|mitochondrial markers|metabolic signaling pathways|lipid and lipoprotein metabolism|lipases|endocrine metabolism|types of disease|
*if product is indicated to react with multiple species, protein info is based on the human gene.

Background for Cytochrome P450 11B1, mitochondrial

CYP11B1(Cytochrome p450, family 11, subfamily B, polypeptide 1), also called Steroid 11-beta-hydroxylase or P450C11, is a steroid hydroxylase found in the zona fasciculata. The CYP11B1 gene functions primarily in mitochondria in the zona fasciculata of the adrenal cortex to convert 11-deoxycortisol to cortisol and 11-deoxycorticosterone to corticosterone. CYP11B1 is a member of the cytochrome P450 superfamily of enzymes. It is mapped on 8q24.3. The CYP11B1 gene contains 9 exons and spans 6.5 kb. Using RT-PCR, Kayes-Wandover and White detected CYP11B1 mRNA in human cardiac tissue samples from left and right atria, aorta, apex, intraventricular septum, and atrioventricular node, as well as whole adult and fetal heart. Ventricles did not express CYP11B1. In patients with 11-beta-hydroxylase deficiency leading to hypertension and congenital adrenal hyperplasia, Pascoe et al. identified mutations in the CYP11B1 gene.

Anti-CYP11B1 Antibody Images

Click the images to enlarge.

Anti-CYP11B1 Antibody
Anti-CYP11B1 antibody, PA1699, Western blotting
All lanes: Anti CYP11B1 (PA1699) at 0.5ug/ml
Lane 1: HELA Whole Cell Lysate at 40ug
Lane 2: U87 Whole Cell Lysate at 40ug
Lane 3: MM231 Whole Cell Lysate at 40ug
Lane 4: PANC Whole Cell Lysate at 40ug
Lane 5: MM453 Whole Cell Lysate at 40ug
Lane 6: HELA Whole Cell Lysate at 40ug
Lane 7: SMMC Whole Cell Lysate at 40ug
Predicted bind size: 58KD
Observed bind size: 58KD
Write a review for PA1699

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.