• Product nameAnti-DR1 antibody - ChIP Grade
    See all DR1 primary antibodies
  • Description
    Rabbit polyclonal to DR1 - ChIP Grade
  • Tested applicationsSuitable for: WB, ChIP, ELISAmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Cow, Dog, Zebrafish
  • Immunogen

    A region within synthetic peptide: MASSSGNDDD LTIPRAAINK MIKETLPNVR VANDARELVV NCCTEFIHLI, corresponding to N terminal amino acids 1-50 of Human DR1

  • Positive control
    • Transfected 293T Cell Lysate



Our Abpromise guarantee covers the use of ab50783 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 Use a concentration of 1.25 µg/ml. Detects a band of approximately 20 kDa (predicted molecular weight: 20 kDa). Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.
ChIP Use at an assay dependent concentration. PubMed: 19114554
ELISA Use at an assay dependent concentration.

Starting ELISA titre using peptide based assay of 1:62500 recommended.


  • FunctionThe association of the DR1/DRAP1 heterodimer with TBP results in a functional repression of both activated and basal transcription of class II genes. This interaction precludes the formation of a transcription-competent complex by inhibiting the association of TFIIA and/or TFIIB with TBP. Can bind to DNA on its own. Component of the ATAC complex, a complex with histone acetyltransferase activity on histones H3 and H4.
  • Sequence similaritiesBelongs to the NC2 beta/DR1 family.
    Contains 1 histone-fold domain.
  • Post-translational
    Phosphorylation regulates its interaction with TBP. Not phosphorylated when bound to DRAP1.
  • Cellular localizationNucleus.
  • Information by UniProt
  • Database links
  • Alternative names
    • Down regulator of transcription 1 antibody
    • Down regulator of transcription 1 TBP binding antibody
    • Down-regulator of transcription 1 antibody
    • down-regulator of transcription 1, TBP-binding (negative cofactor 2) antibody
    • DR 1 antibody
    • Dr1 antibody
    • Dr1 protein antibody
    • NC 2 antibody
    • NC2 antibody
    • NC2 beta antibody
    • NC2-beta antibody
    • NC2B_HUMAN antibody
    • Negative co factor 2 antibody
    • Negative cofactor 2 antibody
    • Negative cofactor 2 beta antibody
    • Negative cofactor 2-beta antibody
    • Protein Dr1 antibody
    • TATA binding protein associated phosphoprotein antibody
    • TATA box/binding protein associated phosphoprotein DR1 antibody
    • TATA-binding protein-associated phosphoprotein antibody
    see all

Anti-DR1 antibody - ChIP Grade images

  • Anti-DR1 antibody - ChIP Grade (ab50783) at 1.25 µg/ml + Transfected 293T Cell Lysate at 10 µg

    HRP conjugated anti-Rabbit IgG at 50000

    Predicted band size : 20 kDa
    Observed band size : <21 kDa (why is the actual band size different from the predicted?)

References for Anti-DR1 antibody - ChIP Grade (ab50783)

This product has been referenced in:
  • Deng W  et al. TFIIB recognition elements control the TFIIA-NC2 axis in transcriptional regulation. Mol Cell Biol 29:1389-400 (2009). WB, ChIP ; Human . Read more (PubMed: 19114554) »

See 1 Publication for this product

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