• Product name

    Anti-E2F2 antibody [2302C4a]
    See all E2F2 primary antibodies
  • Description

    Mouse monoclonal [2302C4a] to E2F2
  • Host species

  • Tested applications

    Suitable for: WB, Dot blotmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Recombinant fragment derived from internal sequence of human E2F2.

  • Positive control

    • Recombinant human E2F2.



Our Abpromise guarantee covers the use of ab70731 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 Use at an assay dependent dilution. Predicted molecular weight: 48 kDa.
Dot blot Use at an assay dependent dilution.


  • Function

    Transcription activator that binds DNA cooperatively with DP proteins through the E2 recognition site, 5'-TTTC[CG]CGC-3' found in the promoter region of a number of genes whose products are involved in cell cycle regulation or in DNA replication. The DRTF1/E2F complex functions in the control of cell-cycle progression from g1 to s phase. E2F-2 binds specifically to RB1 protein, in a cell-cycle dependent manner.
  • Tissue specificity

    Highest level of expression is found in placenta, low levels are found in lung. Found as well in many immortalized cell lines derived from tumor samples.
  • Sequence similarities

    Belongs to the E2F/DP family.
  • Post-translational

    Phosphorylated by CDK2 and cyclin A-CDK2 in the S-phase.
  • Cellular localization

  • Information by UniProt
  • Database links

  • Alternative names

    • dE2F2 antibody
    • E2F transcription factor 2 antibody
    • E2F-2 antibody
    • E2F2 antibody
    • E2F2_HUMAN antibody
    • Transcription factor E2F2 antibody
    see all


  • Anti-E2F2 antibody [2302C4a] (ab70731) + immunising recombinant protein

    Predicted band size: 48 kDa
    Observed band size: 48 kDa


ab70731 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

1-2 of 2 Abreviews or Q&A


Thank you and your customer for taking the time to complete our questionnaire and contact us. I am sorry to hear your customer has had difficulty obtaining satisfactory results from this antibody.

The details your customer has kindly provided will enable us to investigate this case for your customer and this is also helpful in our records for monitoring of quality.

Reviewing this case, I would like to offer some suggestions to help optimise the results from ab70731.

The image indicates that there is not signal when using this antibody. The background bands might vanish as soon as the antibody finds a specific protein to bind to.

1.) The trizol protein extraction protocol is using a very high comncentration of urea (10M).

However, urea and thiourea can hydrolyze to cyanate and thiocyanate, respectively, which can modify amino groups on proteins, (e.g. carbamylation of proteins by isocyanate).

I am aware that your cutomer might only have small samples and is using the Trizol for this reason to get protein and RNA/DNA at the same time.

Therefore I suggest to use a positive control with a standard RIPA buffer to optimised the protocol for this antibody first.

2.) When testing our antibodies, our lab uses 5% BSA as a blocking reagent, so I recommend switching to this instead of milk. Some antibodies give stronger, more specific signals on blots blocked with BSA instead of milk, so doing this may improve the results you are seeing, and reduce the non-specific bands. An example of the above is the western blot obtained with the Abcam GAPDH antibody ab9385 : https://www.abcam.com/ab9385 .

We are happy to offer this technical support. In the event that a product is not functioning in the applications cited on the product data sheet (and the problem has been reported within 6 months of purchase), we will be pleased to provide a credit note, free of charge replacement or refund.

I hope this information is helpful, thank you and your customer for your cooperation. Should the suggestions not improve the results, please do not hesitate to contact me again with the further requested details.

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Thank you for bringing this to our attention. Can you please describe your samples and protocol? In particular, what is the species and tissue source of the sample, and how was the lysate prepared? What type of membrane are you transferring to from the gel, and how is the membrane blocked before incubation with the antibody? Have you stained blots of your samples successfully with any other antibodies, using these same reagents? I look forward to your reply.

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