• Product name

    Anti-PIAS1 antibody [EPR2580(2)] (Alexa Fluor® 594)
    See all PIAS1 primary antibodies
  • Description

    Rabbit monoclonal [EPR2580(2)] to PIAS1 (Alexa Fluor® 594)
  • Host species

  • Conjugation

    Alexa Fluor® 594. Ex: 590nm, Em: 617nm
  • Tested applications

    Suitable for: Flow Cytmore details
  • Species reactivity

    Reacts with: Human
    Predicted to work with: Mouse, Rat
  • Immunogen

    Synthetic peptide within Human PIAS1 aa 50-150. The exact sequence is proprietary.
    Database link: O75925

  • Positive control

    • Flow Cyt: HeLa 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.

    Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab203967 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
Flow Cyt 1/50.


  • Function

    Functions as an E3-type small ubiquitin-like modifier (SUMO) ligase, stabilizing the interaction between UBE2I and the substrate, and as a SUMO-tethering factor. Plays a crucial role as a transcriptional coregulation in various cellular pathways, including the STAT pathway, the p53 pathway and the steroid hormone signaling pathway. In vitro, binds A/T-rich DNA. The effects of this transcriptional coregulation, transactivation or silencing, may vary depending upon the biological context. Together with PRMT1, may repress STAT1 transcriptional activity, in the late phase of interferon gamma (IFN-gamma) signaling.
  • Tissue specificity

    Expressed in numerous tissues with highest level in testis.
  • Pathway

    Protein modification; protein sumoylation.
  • Sequence similarities

    Belongs to the PIAS family.
    Contains 1 PINIT domain.
    Contains 1 SAP domain.
    Contains 1 SP-RING-type zinc finger.
  • Domain

    The LXXLL motif is a transcriptional coregulator signature.
    The SP-RING-type domain is required for promoting EKLF sumoylation.
  • Post-translational

    Dimethylated by PRMT1 at Arg-303 in the late phase of interferon gamma (IFN-gamma) signaling, leading to preferential interaction with STAT1 and thus resulting in release of STAT1 from its target gene.
  • Cellular localization

    Nucleus speckle. Interaction with CSRP2 may induce a partial redistribution along the cytoskeleton.
  • Information by UniProt
  • Database links

  • Alternative names

    • AR interacting protein antibody
    • DDXBP1 antibody
    • DEAD/H (Asp-Glu-Ala-Asp/His) box binding protein 1 antibody
    • DEAD/H box binding protein 1 antibody
    • DEAD/H box-binding protein 1 antibody
    • E3 SUMO-protein ligase PIAS1 antibody
    • GBP antibody
    • Gu binding protein antibody
    • Gu-binding protein antibody
    • GU/RH-II antibody
    • Pias1 antibody
    • PIAS1_HUMAN antibody
    • Protein inhibitor of activated STAT protein 1 antibody
    • Protein inhibitor of activated STAT, 1 antibody
    • RNA helicase II binding protein antibody
    • RNA helicase II-binding protein antibody
    • Zinc finger, MIZ-type containing 3 antibody
    • ZMIZ3 antibody
    see all


  • Overlay histogram showing HeLa cells stained with ab203967 (red line). The cells were fixed with 4% formaldehyde (10 min) and then permeabilized with 90% methanol at -20°C for 15 min. The cells were then incubated in 1x PBS / 10% normal goat serum to block non-specific protein-protein interactions followed by the antibody (ab203967, 1/50 dilution) for 30 min at 22°C.

    Isotype control antibody (black line) was rabbit IgG (monoclonal) Alexa Fluor® 594 (ab208568) used at the same concentration and conditions as the primary antibody. Unlabelled sample (blue line) was also used as a control.

    Acquisition of >5,000 events were collected using a 50 mW Yellow/Green laser (561nm) and 610/20 bandpass filter.


ab203967 has not yet been referenced specifically in any publications.

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