• Product nameAnti-Cytochrome P450 3A4 antibody
    See all Cytochrome P450 3A4 primary antibodies
  • Description
    Rabbit polyclonal to Cytochrome P450 3A4
  • Tested applicationsSuitable for: WB, IHC-Pmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Other Immunogen Type (His-tag) corresponding to Human Cytochrome P450 3A4 . Purified, His-tagged, full length human P450 3A4 fusion protein.

  • Positive control
    • Rat liver lysate.



Our Abpromise guarantee covers the use of ab3572 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/2000. Detects a band of approximately 52 kDa (predicted molecular weight: 57 kDa). A 46kDa band is detected in rat liver extracts.
IHC-P Use at an assay dependent concentration. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.


  • FunctionCytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. The enzyme also hydroxylates etoposide.
  • Tissue specificityExpressed in prostate and liver. According to some authors, it is not expressed in brain (PubMed:19094056). According to others, weak levels of expression are measured in some brain locations (PubMed:19359404 and PubMed:18545703). Also expressed in epithelium of the small intestine and large intestine, bile duct, nasal mucosa, kidney, adrenal cortex, epithelium of the gastric mucosa with intestinal metaplasia, gallbladder, intercalated ducts of the pancreas, chief cells of the parathyroid and the corpus luteum of the ovary (at protein level).
  • Sequence similaritiesBelongs to the cytochrome P450 family.
  • Post-translational
    Polyubiquitinated in the presence of AMFR and UBE2G1 and also STUB1/CHIP and UBE2D1 (in vitro).
  • Cellular localizationEndoplasmic reticulum membrane. Microsome membrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • 1,8-cineole 2-exo-monooxygenase antibody
    • Albendazole monooxygenase antibody
    • Albendazole sulfoxidase antibody
    • CP33 antibody
    • CP34 antibody
    • CP3A4_HUMAN antibody
    • CYP3 antibody
    • CYP3A antibody
    • CYP3A3 antibody
    • CYP3A4 antibody
    • CYPIIIA3 antibody
    • CYPIIIA4 antibody
    • Cytochrome P450 3A3 antibody
    • Cytochrome P450 3A4 antibody
    • Cytochrome P450 family 3 subfamily A polypeptide 4 antibody
    • Cytochrome P450 HLp antibody
    • Cytochrome P450 NF-25 antibody
    • Cytochrome P450 subfamily IIIA polypeptide 4 antibody
    • cytochrome P450, subfamily IIIA (niphedipine oxidase), polypeptide 3 antibody
    • cytochrome P450, subfamily IIIA (niphedipine oxidase), polypeptide 4 antibody
    • Cytochrome P450-PCN1 antibody
    • Glucocorticoid inducible P450 antibody
    • HLP antibody
    • MGC126680 antibody
    • NF 25 antibody
    • NF25 antibody
    • Nifedipine oxidase antibody
    • P450 III steroid inducible antibody
    • P450 PCN1 antibody
    • P450, family III antibody
    • P450C3 antibody
    • P450PCN1 antibody
    • Quinine 3 monooxygenase antibody
    • Quinine 3-monooxygenase antibody
    • Taurochenodeoxycholate 6 alpha hydroxylase antibody
    • Taurochenodeoxycholate 6-alpha-hydroxylase antibody
    see all

Anti-Cytochrome P450 3A4 antibody images

  • All lanes : Anti-Cytochrome P450 3A4 antibody (ab3572) at 1/2000 dilution

    Lane 1 : Mouse liver with Skimmed milk
    Lane 2 : Rat liver with Skimmed milk

    Lysates/proteins at 30 µg per lane.
    Blocking peptides at 5 % per lane.

    HRP conjugated Goat anti-Rabbit IgG (H+L) at 1/5000 dilution

    Predicted band size : 57 kDa
  • ab3572 (1µg/ml) staining cytochrome P450 3A4 in human Liver using an automated system (DAKO Autostainer Plus). Using this protocol there is strong staining of cytoplasm of the plates of hepatic cells .
    Sections were rehydrated and antigen retrieved with the Dako 3 in 1 AR buffers citrate pH 6.0 in a DAKO PT link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 mins. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS) then incubated with primary antibody for 20 min and detected with Dako envision flex amplification kit for 30 minutes. Colorimetric detection was completed with Diaminobenzidine for 5 minutes. Slides were counterstained with Haematoxylin and coverslipped under DePeX. Please note that, for manual staining, optimization of primary antibody concentration and incubation time is recommended. Signal amplification may be required.

  • Predicted band size : 57 kDa
    Western blot of cytochrome P450 3A4 on rat liver extract using ab3572.

  • Predicted band size : 57 kDa
    ab3572 at a dilution of 1/2000 staining cytochrome P450 3A4 in rat liver extract by Western blot.
  • Anti-Cytochrome P450 3A4 antibody (ab3572) at 1/500 dilution + Human liver tissue lysate - total protein (ab29889) at 10 µg

    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    Developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 57 kDa
    Observed band size : 52 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 26 kDa,29 kDa. We are unsure as to the identity of these extra bands.

    Exposure time : 90 seconds

References for Anti-Cytochrome P450 3A4 antibody (ab3572)

This product has been referenced in:
  • Hubbs AF  et al. Accumulation of Ubiquitin and Sequestosome-1 Implicate Protein Damage in Diacetyl-Induced Cytotoxicity. Am J Pathol N/A:N/A (2016). IHC ; Mouse . Read more (PubMed: 27643531) »
  • Wei Z  et al. The effect of microRNAs in the regulation of human CYP3A4: a systematic study using a mathematical model. Sci Rep 4:4283 (2014). WB ; Human . Read more (PubMed: 24594634) »

See all 6 Publications for this product

Product Wall

Thank you for your enquiry. I can confirm that this product detects cytochrome P450 3A4 from human and rat tissues and cells. Unfortunately, we do not have any information or data showing cross reactivity with 3A5 but it may detect, to a lesser ext...

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I was informed by the originator of the antibody that the concentration was not determined, quite surprisingly. They predict the concentration to be around 1mg/ml. I'm sorry I couldn't help you more. Please do not hesitate to contact me again if I ...

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It is true that rats do not express 3A4. This is a human specific CYP. Rats do express others in the CYP family which this antibody cross-reacts with since the immunogen was full length human P450 3A4 fusion protein. That explains the cross-reaction ...

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Thank you very much for the details that you have provided and for your patience. What was the lot number that you received? Why did you not heat the samples to denature the proteins? In addition to the non-specific bands that you are seeing, did you s...

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Thank you for your enquiry. We did not perform experiments to determine the approximate concentration for these lots. It is purified IgG, and we don't know how much of it is specific for Cytochrome P450 3A4. We would recommend using this antibody at 1...

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Thank you for your enquiry. We do not routinely offer free or trial sized samples for testing purposes. Our policy at Abcam is that if an antibody does not work as specified on the datasheet, we will offer a replacement or reimbursement. Should you dec...

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We do not routinely offer free or trial sized samples for testing purposes. Our policy at Abcam is that if an antibody does not work as specified on the datasheet, we will offer a replacement or reimbursement. This antibody has been tested in Western B...

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