Anti-Mitotic proteins antibody [MPM-2] (ab14581)


  • Product name
    Anti-Mitotic proteins antibody [MPM-2]
  • Description
    Mouse monoclonal [MPM-2] to Mitotic proteins
  • Host species
  • Specificity
    Recognizes a phosphorylated epitope (S/T)P found in phosphoproteins such as MAP2, HSP70, cdc25 and DNA topoisomerase IIa, most of which are phosphorylated at the onset of mitosis. The number of phosphoproteins recognized by MPM-2 varies from species to species and with the cell type. The clone number has been updated from (0.T.181) to (MPM-2) both clone numbers name the same antibody clone.
  • Tested applications
    Suitable for: IHC-P, ICC/IF, IP, WB, ICC, ELISAmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: a wide range of other species
  • Immunogen

    Tissue/ cell preparation (Mitotic human HeLa cell cytosolic lysate).

  • Positive control
    • Colcemid treated HeLa cell lysate.
  • General notes
    For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

    Abcam is committed to meeting high standards of ethical manufacturing and has decided to discontinue this product by June 2019 as it has been generated by the ascites method. We are sorry for any inconvenience this may cause. 



Our Abpromise guarantee covers the use of ab14581 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 Use a concentration of 2 µg/ml.
ICC/IF Use at an assay dependent concentration.
IP Use at an assay dependent concentration.
WB Use a concentration of 0.5 - 2 µg/ml. Predicted molecular weight: 92 kDa.
ICC Use a concentration of 5 - 15 µg/ml.
ELISA Use at an assay dependent concentration. This antibody was used in a non-radioactive, dissociation-enhanced time resolved fluoroimmunoassa.Active enzymes were used to phosphorylate substrate peptides. The phosphorylated peptides were detected using MPM2 in conjunction with a europium (Eu3+) labeled secondary antibody. The phosphorylated peptides detected include: S1000-50 Serine Kinase Substrate Peptide (Biotin) (RRRAPLSP-N-Biotin) and S1000-80 Serine/Threonine Kinase Substrate Peptide, Recombinant, Human (Biotin).


  • Cellular localization
    The phosphoproteins have been found in the cytoplasm of mitotic cells and near centrosomes, kinetochores, and midbodies of the microtubule organizing centers.


  • Ab14581 staining human normal skin. Staining is localised to the nucleus.
    Left panel: with primary antibody at 2 ug/ml. Right panel: isotype control.
    Sections were stained using an automated system DAKO Autostainer Plus , at room temperature. Sections were rehydrated and antigen retrieved with the Dako 3-in-1 antigen retrieval buffer EDTA pH 9.0 in a DAKO PT Link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 minutes. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS) then incubated with primary antibody for 20 minutes 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 we recommend to optimize the primary antibody concentration and incubation time (overnight incubation), and amplification may be required.
  • ab14581 staining Mitotic proteins - Mitosis Marker in Human Saos-2 cells by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with paraformaldehyde, permeabilized with 0.25% Triton in PBS and blocked with 1% BSA for 1 hour at room temperature. Samples were incubated with primary antibody (1/500) for 1 hour. An Alexa Fluor® 594-conjugated Goat anti-mouse IgG polyclonal (1/250) was used as the secondary antibody.

    See Abreview


This product has been referenced in:
  • Ruppert JG  et al. HP1a targets the chromosomal passenger complex for activation at heterochromatin before mitotic entry. EMBO J 37:N/A (2018). Flow Cyt . Read more (PubMed: 29467217) »
  • Machicoane M  et al. SLK-dependent activation of ERMs controls LGN-NuMA localization and spindle orientation. J Cell Biol 205:791-9 (2014). Read more (PubMed: 24958772) »

See all 8 Publications for this product

Customer reviews and Q&As

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I am sorry this product had a mistake on the datasheet (which has been corrected in the meantime) and for the inconvenience this has caused. As requested, I have issued a free of charge replacement with the order nu...

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Yes, I can definitely send you ab83097 free of charge. For ab83097, would you like to receive 1 vial or more?

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Abcam guarantees this product to work in the species/application used in this Abreview.
Immunocytochemistry/ Immunofluorescence
Human Cell (saos-2 human osteosarcoma)
saos-2 human osteosarcoma
Yes - pbs triton 0.25%
Blocking step
BSA as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 1% · Temperature: rt°C

Abcam user community

Verified customer

Submitted Apr 19 2012

Thank you for your reply.
Yes, please send me the list of your Abcam antibodies you have been using and I will check those.

I look forward to hear from your colleague to resolve this issue for you.

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I am extremely sorry for this oversight on our part and for the frustration and disappointment it is causing you and other customers. I completely understand your situation and sincerely apologize for this.
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Thank you for contacting us.

The information sent is not restricted to lot427148 only, it refers to all lots.I sincerely apologize about the mistake made - which has been corrected in the meantime.

Please let me know how I can hel...

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