• Product name
    Anti-CTF18 antibody [2182C3a]
    See all CTF18 primary antibodies
  • Description
    Mouse monoclonal [2182C3a] to CTF18
  • Host species
  • Tested applications
    Suitable for: WB, IP, Dot blotmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Recombinant fragment corresponding to Human CTF18.

  • Positive control
    • HT1080 whole cell lysate.
  • General notes

    Previously labelled as CHTF18. 


  • Form
  • Storage instructions
    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term.
  • Storage buffer
    pH: 7.40
    Preservative: 0.05% Sodium azide
    Constituents: 1% BSA, 0.03% Potassium phosphate, 0.812% Sodium chloride, 0.1312% Sodium phosphate, 0.0225% Potassium chloride, PBS
  • Concentration information loading...
  • Purity
    Protein G purified
  • Clonality
  • Clone number
  • Isotype
  • Research areas


Our Abpromise guarantee covers the use of ab51331 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
Dot blot
  • Application notes
    Dot: Use at an assay dependent dilution.
    IP: Use at 10µg/mg RIPA lysate of HeLa cells.
    WB: 1/100. Detects a band of approximately 118 kDa (predicted molecular weight: 107 kDa).

    Not yet tested in other applications.
    Optimal dilutions/concentrations should be determined by the end user.
  • Target

    • Function
      Chromosome cohesion factor involved in sister chromatid cohesion and fidelity of chromosome transmission. Component of one of the cell nuclear antigen loader complexes, CTF18-replication factor C (CTF18-RFC), which consists of CTF18, CTF8, DCC1, RFC2, RFC3, RFC4 and RFC5. The CTF18-RFC complex binds to single-stranded and primed DNAs and has weak ATPase activity that is stimulated by the presence of primed DNA, replication protein A (RPA) and by proliferating cell nuclear antigen (PCNA). The CTF18-RFC complex catalyzes the ATP-dependent loading of PCNA onto primed and gapped DNA. It also interacts with and stimulates DNA polymerase POLH.
    • Sequence similarities
      Belongs to the activator 1 small subunits family. CTF18 subfamily.
    • Cellular localization
      Nucleus. Associates with chromatin during S phase.
    • Information by UniProt
    • Database links
    • Alternative names
      • 6030457M03Rik antibody
      • C16orf41 antibody
      • C321D2.2 antibody
      • C321D2.3 antibody
      • C321D2.4 antibody
      • CHL12 antibody
      • chromosome transmission fidelity factor 18 homolog (S. cerevisiae) antibody
      • Chromosome transmission fidelity protein 18 homolog antibody
      • chtf18 antibody
      • Ctf18 antibody
      • CTF18_HUMAN antibody
      • hCTF18 antibody
      • MGC38008 antibody
      • RUVBL antibody
      see all


    • Anti-CTF18 antibody [2182C3a] (ab51331) at 1/100 dilution + HT1080 whole cell lysate at 25 µg

      anti-mouse IgG at 1/2500 dilution

      Developed using the ECL technique.

      Predicted band size: 107 kDa
      Observed band size: 118 kDa
      why is the actual band size different from the predicted?

    • Immunoprecipitation analysis using ab51331 at 5ug/500ug RIPA lysate of HeLa cells. Immunoblot using ab51331 at 1/100 dilution and anti-mouse IgG at 1/2500 dilution as secondary.


    ab51331 has not yet been referenced specifically in any publications.

    Customer reviews and Q&As

    1-5 of 5 Abreviews or Q&A

    Abcam has not validated the combination of species/application used in this Abreview.
    Immunocytochemistry/ Immunofluorescence
    Mouse Cell (Male Meiotic Cells)
    Male Meiotic Cells
    Blocking step
    BSA and Fish Gelatin as blocking agent for 45 minute(s) · Concentration: 0.2% · Temperature: 24°C

    Abcam user community

    Verified customer

    Submitted Jul 06 2012


    I am very pleased to hear you would like to accept our offer and test ab51331 in mouse.

    DISCOUNT CODE: ########
    Expiration date: ######

    This code will give you: 1 free primary antibody or value off the order before the expiration date. To redeem this offer, please submit an Abreview for mouse and include this code in the “Additional Comments” section so we know the Abreview is for this promotion. For more information on how to submit an Abreview, please visit the site: www.abcam.com/Abreviews.

    Remember, we publish both positive and negative Abreviews on our datasheets so please submit the results of your tests. The code will be active once the Abreview has been submitted and can be redeemed in one of the following ways: 1) Call to place your order and mention the code to our customer service department; 2) Include the code in your fax order; 3) Place your order on the web and enter the promotional code.

    Any feedback that you can provide will be greatly appreciated, whether positive or negative. If you have any further questions, please do not hesitate to contact us. We look forward to receiving your Abreview and wish you luck with your research.

    The terms and conditions applicable to this offer can be found here: www.abcam.com/collaborationdiscount.

    We look forward to receiving your Abreview and wish you luck with your research.

    Read More


    Thank you for your reply.

    The immmunogen for ab51331 CHTF18 antibody [2182C3a] is as follows:

    As the alignment is reasonably high, I can offer a discount off a future purchase if you buy ab51331 now, test it in mouse and submit feedback to us in the form of an Abreview. It doesn’t matter whether the Abreview is positive or negative, we would just really like to receive your feedback. The discount would be to the value of: 1 free primary antibody.

    If you are interested in this offer, please follow these steps:

    1. Reply to this e-mail to let me know that you would like to proceed and test ab51331 in mouse. I will then send a discount code. This code must be issued before purchasing ab51331 so please wait for my reply before ordering.

    2. Purchase ab51331 either by phone, fax, or online (www.abcam.com).

    3. Test it in mouse.

    4. Let us know the results, positive or negative, using our Abreview system (this will take about 10 minutes and images are great if you have them!). To find out how to submit an Abreview, please visit: https://www.abcam.com/abreviews.

    5. After the review is submitted to us, the discount code becomes active. Simply place your new order by phone, fax, or on the web and mention the discount code. The discount can be redeemed for any primary antibody ordered and the discount code is valid for 4 months after issue.

    We are always pleased to obtain feedback about our products and any information is greatly appreciated! Even if ab51331 turns out to be unsuitable for mouse, you will still receive the discount on your next purchase after your Abreview has been submitted.

    The Terms and Conditions of this offer can be found at:


    Please let me know if you have any questions about this offer and I would be happy to help you further.

    Read More


    Thank you for your enquiry.

    I am sorry to confirm that as far as we are aware, ab51331 CHTF18 antibody [2182C3a] has never been tested with samples from mouse. All tested and guaranteed species cross-reactivity information is stated on our datasheets, and these are updated as soon as any new information is brought to our attention.

    I have checked the alignment of the immunogen for the antibody with the mouse CHTF18 protein. This has an alignment of 74%. We recommend alignment should be over 85% to predict that an antibody will detect. The alignment here is a bit low, but it is possible there would still be some crossreactivity. However, please note that we are not able to guarantee any new species, even if there is high alignment, until it has been tested.

    If you would like to test the antibody in mouse, please contact me again by replying to this message prior to the purchase as you may be eligible for our testing discount program.

    Otherwise, we like to encourage all of our customers to submit an Abreview via the online product datasheet. We always appreciate customer feedback, whether positive or negative, and we make all product information available to researchers. Each Abreview earns Abpoints that can be used for discounts on future purchases or rewards such as Amazon.com gift certificates.

    To find out more about our Abreview system, please see the following link:

    I hope this information is helpful. Please do not hesitate to contact me for any further advice or information.

    Read More
    Abcam has not validated the combination of species/application used in this Abreview.
    Immunocytochemistry/ Immunofluorescence
    Human Cell (HCT116 (colorectal))
    Yes - 0.5% Triton X100 in PBS
    HCT116 (colorectal)

    Dr. Kirk Mcmanus

    Verified customer

    Submitted Jan 12 2009


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