Validated using a knockout cell line

Anti-TPMT antibody [EPR10820(B)] (ab155284)


  • Product name
    Anti-TPMT antibody [EPR10820(B)]
    See all TPMT primary antibodies
  • Description
    Rabbit monoclonal [EPR10820(B)] to TPMT
  • Host species
  • Tested applications
    Suitable for: WB, IHC-P, ICC, IP, Flow Cytmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    A synthetic peptide, corresponding to residues in Human TPMT (UniProt: P51580).

  • Positive control
    • HAP1, K562, TF1, Jurkat and HepG2 cell lysates; Human brain and kidney tissue; Permeabilized K562 cells.
  • General notes

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab155284 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 1/1000 - 1/10000. Predicted molecular weight: 28 kDa.
IHC-P 1/100 - 1/250. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
ICC 1/100 - 1/250.
IP 1/10 - 1/100.
Flow Cyt 1/100 - 1/500.

ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.


  • Function
    Catalyzes the S-methylation of thiopurine drugs such as 6-mercaptopurine.
  • Involvement in disease
    Defects in TPMT are the cause of thiopurine S-methyltransferase deficiency (TPMT deficiency) [MIM:610460]. TPMT is an enzyme involved in the normal metabolic inactivation of thiopurine drugs. These drugs are generally used as immunosupressants or cytotoxic drugs and are prescribed for a variety of clinical conditions including leukemia, autoimmune disease and organ transplantation. Patients with intermediate or no TPMT activity are at risk of toxicity after receiving standard doses of thiopurine drugs and it is shown that inter-individual differences in response to these drugs are largely determined by genetic variation at the TPMT locus.
  • Sequence similarities
    Belongs to the methyltransferase superfamily. TPMT family.
  • Cellular localization
  • Information by UniProt
  • Database links
  • Alternative names
    • HGNC:12014 antibody
    • S adenosyl L methionine thiopurine S methyltransferase antibody
    • Thiopurine methyltransferase antibody
    • Thiopurine S methyltransferase antibody
    • Thiopurine S-methyltransferase antibody
    • TPMT antibody
    • TPMT_HUMAN antibody
    see all


  • Lane 1: Wild-type HAP1 whole cell lysate (20 µg)
    Lane 2: TPMT knockout HAP1 whole cell lysate (20 µg)
    Lane 3: HepG2 whole cell lysate (20 µg)
    Lane 4: Jurkat whole cell lysate (20 µg)

    Lanes 1 - 4: Merged signal (red and green). Green - ab155284 observed at 28 kDa. Red - loading control, ab9484, observed at 37 kDa.

    ab155284 was shown to recognize TPMT in wild-type HAP1 cells as signal was lost at the expected MW in TPMT knockout cells. Additional cross-reactive bands were observed in the wild-type and knockout cells. Wild-type and TPMT knockout samples were subjected to SDS-PAGE. Ab155284 and ab9484 (Mouse anti-GAPDH loading control) were incubated overnight at 4°C at 2 μg/ml and 1/20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed ab216776 secondary antibodies at 1/10000 dilution for 1 hour at room temperature before imaging.

  • All lanes : Anti-TPMT antibody [EPR10820(B)] (ab155284) at 1/1000 dilution

    Lane 1 : K562 cell lysate
    Lane 2 : TF1 cell lysate
    Lane 3 : Jurkat cell lysate
    Lane 4 : HepG2 cell lysate

    Lysates/proteins at 10 µg per lane.

    All lanes : Goat anti-rabbit HRP at 1/2000 dilution

    Predicted band size: 28 kDa

  • Immunohistochemical analysis of paraffin-embedded Human brain tissue labeling TPMT with ab155284 at 1/100 dilution.
  • Immunohistochemical analysis of paraffin-embedded Human kidney tissue labeling TPMT with ab155284 at 1/100 dilution.
  • Flow cytometric analysis of permeabilized K562 cells labeling TPMT with ab155284 at 1/100 dilution (red) compared with a rabbit IgG (negative) (green).
  • Immunohistochemical analysis of paraffin embedded Human normal uterus tissue using ab155284 showing +ve staining.

  • Immunohistochemical analysis of paraffin embedded Human gastric adenocarcinoma tissue using ab155284 showing +ve staining.

  • Immunohistochemical analysis of paraffin embedded Human thyroid gland carcinoma tissue using ab155284 showing +ve staining.


ab155284 has not yet been referenced specifically in any publications.

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