Validated using a knockout cell line

Recombinant Anti-Cleaved PARP1 antibody [Y34] (ab32561)


  • Product name
    Anti-Cleaved PARP1 antibody [Y34]
    See all Cleaved PARP1 primary antibodies
  • Description
    Rabbit monoclonal [Y34] to Cleaved PARP1
  • Host species
  • Specificity
    This antibody is specific for p85 cleaved form of PARP1.
  • Tested applications
    Suitable for: IHC-P, WB, Flow Cyt, IP, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Synthetic peptide within Human Cleaved PARP1 aa 200-300. The exact sequence is proprietary. Residues following the cleavage of site.

  • Positive control
    • Jurkat whole cell lysate (ab7899).
  • General notes

    A trial size is available to purchase for this antibody.

    Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.


    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 ab32561 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 at an assay dependent concentration. PubMed: 21931707
WB 1/1000. Predicted molecular weight: 85 kDa.
Flow Cyt 1/50.

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

IP 1/50.
ICC/IF 1/500.


  • Function
    Involved in the base excision repair (BER) pathway, by catalyzing the poly(ADP-ribosyl)ation of a limited number of acceptor proteins involved in chromatin architecture and in DNA metabolism. This modification follows DNA damages and appears as an obligatory step in a detection/signaling pathway leading to the reparation of DNA strand breaks. Mediates the poly(ADP-ribosyl)ation of APLF and CHFR. Positively regulates the transcription of MTUS1 and negatively regulates the transcription of MTUS2/TIP150. With EEF1A1 and TXK, forms a complex that acts as a T-helper 1 (Th1) cell-specific transcription factor and binds the promoter of IFN-gamma to directly regulate its transcription, and is thus involved importantly in Th1 cytokine production. Required for PARP9 and DTX3L recruitment to DNA damage sites. PARP1-dependent PARP9-DTX3L-mediated ubiquitination promotes the rapid and specific recruitment of 53BP1/TP53BP1, UIMC1/RAP80, and BRCA1 to DNA damage sites.
  • Sequence similarities
    Contains 1 BRCT domain.
    Contains 1 PARP alpha-helical domain.
    Contains 1 PARP catalytic domain.
    Contains 2 PARP-type zinc fingers.
  • Post-translational
    Phosphorylated by PRKDC and TXK.
    Poly-ADP-ribosylated by PARP2. Poly-ADP-ribosylation mediates the recruitment of CHD1L to DNA damage sites.
    S-nitrosylated, leading to inhibit transcription regulation activity.
  • Cellular localization
    Nucleus. Nucleus, nucleolus. Localizes at sites of DNA damage.
  • Information by UniProt
  • Database links
  • Alternative names
    • ADP-ribosyltransferase diphtheria toxin-like 1 antibody
    • ADPRT 1 antibody
    • ADPRT antibody
    • ADPRT1 antibody
    • APOPAIN antibody
    • ARTD1 antibody
    • NAD(+) ADP-ribosyltransferase 1 antibody
    • PARP antibody
    • PARP-1 antibody
    • PARP1 antibody
    • PARP1_HUMAN antibody
    • Poly [ADP-ribose] polymerase 1 antibody
    • Poly ADP ribose polymerase 1 antibody
    • Poly[ADP-ribose] synthase 1 antibody
    • PPOL antibody
    • SCA1 antibody
    see all


  • Lane 1: Wild type HAP1 (untreated) whole cell lysate (20 µg)
    Lane 2: PARP1 (untreated) knockout HAP1 (untreated) whole cell lysate (20 µg)
    Lane 3: HeLa (untreated) whole cell lysate (20 µg)
    Lane 4: HAP1 (staurosporin treated, 1 u M, 4 hr) whole cell lysate (20 µg)
    Lane 5: PARP1 (staurosporin treated, 1 uM, 4 hr) knockout HAP1 whole cell lysate (20 µg)
    Lane 6: HeLa (staurosporin treated, 1 uM, 4 hr) whole cell lysate (20 µg)

    Lanes 1 - 6: Merged signal (red and green). Green - ab32561 observed at 100 kDa. Red - loading control, ab8245, observed at 37 kDa.

    ab32561 was shown to specifically react with PARP1 (untreated) when PARP1 (untreated) knockout samples were used. Wild-type and PARP1 (untreated) knockout samples were subjected to SDS-PAGE. Ab32561 and ab8245 (Mouse anti GAPDH loading control) were incubated overnight at 4°C at 1000 dilution and 1/10000 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.              

  • Primary ab 1/50 dilution (0.5μg / Red). Secondary ab Goat anti rabbit IgG (FITC). Secondary ab concentration 1/150 dilution. Cell line Jurkat (human acute T cell leukemia) treated with (Right) or without (Left) 4μM Camptothecin for 5h. Fixative 4% paraformaldehyde. Datasheet comment Flow cytometric analysis of apoptotic and non-apoptotic Jurkat cells using anti-cleaved PARP1 RabMAb (ab32561). Jurkat cells were either left untreated (A) or treated with camptothecin (4 uM, 5 hr) to induce apoptosis (B). Cells were fixed and permeabilized, and then stained with anti-cleaved PARP1. The results indicate that 43% of cells were positive for cleaved PARP1 (B, M2) after treatment, compared to 9% positive without treatment (A, M2).

  • ab32561 staining Cleaved PARP1 in HeLa cells by ICC/IF (Immunocytochemistry/immunofluorescence). Cells were fixed with formaldehyde and permeabilized with 0.5% Triton X-100 in PBS. Samples were incubated with primary antibody (1/500 in PBS) for 1 hour at 22°C. ab150081, an Alexa Fluor® 488-conjugated goat anti-rabbit IgG polyclonal (1/200) was used as the secondary antibody. Counterstained with DAPI.

    See Abreview

  • All lanes : Anti-Cleaved PARP1 antibody [Y34] (ab32561) at 1/1000 dilution

    Lane 1 : Un-treated Jurkat cell lysate.
    Lane 2 : Jurkat cell lysate treated with Camptothecin.

    Predicted band size: 85 kDa
    Observed band size: 85 kDa

  • Immunohistochemical analysis of OVCAR-3 tumour xenografts in nude mice, staining cleaved PARP1 with ab32561.

    Antigen retrieval was performed via heat mediation in a citrate buffer. Samples were incubated with primary antibody (1/100) overnight at 4°C. A biotinyated anti-rabbit IgG (1/150) was used as the secondary antibody and staining was detected using DAB.


This product has been referenced in:
  • Chen Y  et al. Epigenetically upregulated oncoprotein PLCE1 drives esophageal carcinoma angiogenesis and proliferation via activating the PI-PLCe-NF-?B signaling pathway and VEGF-C/ Bcl-2 expression. Mol Cancer 18:1 (2019). Read more (PubMed: 30609930) »
  • Ma C  et al. Emodin induces apoptosis and autophagy of fibroblasts obtained from patient with ankylosing spondylitis. Drug Des Devel Ther 13:601-609 (2019). Read more (PubMed: 30809091) »
See all 30 Publications for this product

Customer reviews and Q&As

Immunocytochemistry/ Immunofluorescence
Human Cell (HeLa)
Yes - 0.5% Triton-X100 in PBS

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Verified customer

Submitted Nov 05 2014

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