• Product name

    Anti-NFIB / NF1B2 antibody
    See all NFIB / NF1B2 primary antibodies
  • Description

    Rabbit polyclonal to NFIB / NF1B2
  • Host species

  • Tested applications

    Suitable for: IHC-P, WBmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Human
    Predicted to work with: Chicken, Hamster
  • Immunogen

    Synthetic peptide:


    , corresponding to amino acids 402-415 of Human NF1B2

  • Positive control

    • MG-63 nuclear extract.



Our Abpromise guarantee covers the use of ab11989 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
IHC-P 1/1000. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
WB 1/500 - 1/1000. Detects a band of approximately 47 kDa (predicted molecular weight: 47 kDa). A doublet may be seen in some cell lines. For optimal results, primary antibody incubations should be performed at room temperature (see recommended protocol). The addition of 0.1% Tween 20 to all Blotto solutions may also reduce background.


  • Function

    Recognizes and binds the palindromic sequence 5'-TTGGCNNNNNGCCAA-3' present in viral and cellular promoters and in the origin of replication of adenovirus type 2. These proteins are individually capable of activating transcription and replication.
  • Sequence similarities

    Belongs to the CTF/NF-I family.
    Contains 1 CTF/NF-I DNA-binding domain.
  • Cellular localization

  • Information by UniProt
  • Database links

  • Alternative names

    • CCAAT Box Binding Transcription Factor antibody
    • CCAAT-box-binding transcription factor antibody
    • CTF antibody
    • HMGIC/NFIB antibody
    • NF-I/B antibody
    • NF1-B antibody
    • NF1B antibody
    • NF1B2 antibody
    • NFI-B antibody
    • NFI-RED antibody
    • Nfib antibody
    • NFIB_HUMAN antibody
    • NFIB2 antibody
    • NFIB3 antibody
    • Nuclear factor 1 B-type antibody
    • Nuclear factor 1/B antibody
    • Nuclear Factor 1B antibody
    • Nuclear Factor I B antibody
    • Nuclear factor I/B antibody
    • TGGCA Binding Protein antibody
    • TGGCA-binding protein antibody
    see all


  • NF1B2 detection by Western blot analysis. NF1B2 is detected in Rat Liver cells using NF1B2 rabbit polyclonal antibody at a 1/1000 dilution (lane 1). The signal is eliminated by adding the immunizing peptide to the reaction mixture (lane 2). NF1B2 detection by Western blot analysis. NF1B2 is detected in Rat Liver cells using NF1B2 rabbit polyclonal antibody at a 1/1000 dilution (lane 1). The signal is eliminated by adding the immunizing peptide to the reaction mixture (lane 2).
  • ab11989 staining of NFIB/NF1B2 in mouse cortex E15. PFA-fixed paraffin-embedded sections of mouse cortex E15 were incubated with ab11989 (1/1000) for 18 hours at 4°C. Antigen retrieval was performed by heat induction in sodium citrate buffer. Please see accompanying abreview for additional information.

    See Abreview


This product has been referenced in:

  • Peterson JN  et al. Replication of JC Virus DNA in the G144 Oligodendrocyte Cell Line Is Dependent Upon Akt. J Virol 91:N/A (2017). Read more (PubMed: 28768870) »
  • Stringer BW  et al. Nuclear factor one B (NFIB) encodes a subtype-specific tumour suppressor in glioblastoma. Oncotarget 7:29306-20 (2016). WB . Read more (PubMed: 27083054) »
See all 5 Publications for this product

Customer reviews and Q&As

1-8 of 8 Abreviews or Q&A


Thank you for confirming these details and for your cooperation. The details provided enable us to closely monitor the quality of our products.

I am sorry this product did not perform as stated on the datasheet and for the inconvenience this has caused. As requested, I have issued a free of charge replacement with the order number 1167993.

To check the status of the order please contact our Customer Service team and reference this number.

Please note that this free of charge replacement vial is also covered by our Abpromise guarantee. Should you still be experiencing difficulties, or if you have any further questions, please do not hesitate to let us know.

I wish you the best of luck with your research.

PS: the antibody was QC tested in WB.

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Thank you for taking time to complete our questionnaire and for contacting us. I am sorry to hear this antibody is not providing satisfactory results.

The details provided will enable us to investigate this case and will provide us with vital information for monitoring product quality. I appreciate the time you have spent in the laboratory and understand your concerns. It is regrettable the results have not been successful.

Having reviewed the protocol details, I believe this product should have given satisfactory results. It appears that you may have received a faulty vial.

I apologize for the inconvenience and am pleased to offer you a free of charge replacement, credit note, or refund in compensation.

Thank you for your cooperation. I look forward to hearing from you with details of how you would like to proceed.

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Thank you for your email. I am sorry to hear that you have been experiencing problems with this antibody.

I have read the details you have kindly provided and surprised to hear that 2 vials of this antibody have been failed. We have sold many vials of this batch without receiving a single complaint so protocol troubleshooting might help in this case. This is a rabbit polyclonal antibody where batch to batch variations are quite obvious; this is due to the way, rabbit's immune system responds to antigen so we always recommend our customers trying troubleshooting tips e.g. increasing or decreasing dilution of primary as well as secondary ab, increasing or decreasing the amount of loaded lysates etc

The following troubleshooting tips can be tried:

- Try primary antibody at 1/500 dilution; overnight incubation
- Try overnight incubation
- . Though previous batches gave no background staining with 5% milk however as observed form the image 5% BSA might improve blocking with this lot. Please use 5% BSA for blocking

I am sure, with these simple updates the results will be comparable with previous lots. Please do not hesitate to contact me for further assistance if the results does not improve.

Read More
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Mouse Tissue sections (Mouse cortex E15)
Mouse cortex E15
Antigen retrieval step
Heat mediated - Buffer/Enzyme Used: Sodium Citrate
Yes - 0.025% TX100
Blocking step
Serum as blocking agent for 2 hour(s) and 0 minute(s) · Concentration: 10% · Temperature: 21°C

Abcam user community

Verified customer

Submitted Jul 23 2008


Thank you for your e-mail. The source of the antibody told us " I am not sure if the 3 isoforms are expressed simultaneously in rat liver nuclear extract and I think that's not the case". We hope this information will clarify the reason for 1 band on the blot, please let us know if you need any further assistance,

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The source of the antibody ab11989 has informed us " The antibody is raised against the peptide YVPSYDPSSPQTSQ. From our blast results, it seems the antibody should recognize all 3 isoforms". We hope this information will help you, please do not hesitate to contact us again if you need further information,

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