• Product name

  • Description

    Rabbit polyclonal to COP1
  • Host species

  • Tested applications

    Suitable for: IPmore details
    Unsuitable for: WB
  • Species reactivity

    Reacts with: Human
    Predicted to work with: Rabbit, Pig, Chimpanzee, Rhesus monkey, Orangutan
  • Immunogen

    A region between residues 100 and 150 of human COP1. (NP_071902.2)

  • Positive control

    • HeLa whole cell lysate



Our Abpromise guarantee covers the use of ab70890 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
IP Use a concentration of 2 - 5 µg/ml.
  • Application notes
    Is unsuitable for WB.
  • Target

    • Function

      E3 ubiquitin-protein ligase that mediates ubiquitination and subsequent proteasomal degradation of target proteins. E3 ubiquitin ligases accept ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Involved in JUN ubiquitination and degradation. Directly involved in p53 (TP53) ubiquitination and degradation, thereby abolishing p53-dependent transcription and apoptosis. Ubiquitinates p53 independently of MDM2 or RCHY1. Probably mediates E3 ubiquitin ligase activity by functioning as the essential RING domain subunit of larger E3 complexes. In contrast, it does not constitute the catalytic RING subunit in the DCX DET1-COP1 complex that negatively regulates JUN, the ubiquitin ligase activity being mediated by RBX1.
    • Tissue specificity

      Ubiquitously expressed at low level. Expressed at higher level in testis, placenta, skeletal muscle and heart.
    • Pathway

      Protein modification; protein ubiquitination.
    • Sequence similarities

      Belongs to the COP1 family.
      Contains 1 RING-type zinc finger.
      Contains 7 WD repeats.
    • Domain

      The RING finger domain, in addition to its role in ubiquitination, functions as a structural scaffold to bring two clusters of positive-charged residues within spatial proximity to mimic a bipartite nuclear localization signal (NLS).
    • Cellular localization

      Nucleus speckle. Cytoplasm. In the nucleus, it forms nuclear speckles.
    • Information by UniProt
    • Database links

    • Alternative names

      • Constitutive photomorphogenesis protein 1 homolog antibody
      • COP antibody
      • E3 ubiquitin-protein ligase RFWD2 antibody
      • hCOP1 antibody
      • Rfwd2 antibody
      • RFWD2_HUMAN antibody
      • ring finger and WD repeat domain 2 antibody
      • RING finger and WD repeat domain protein 2 antibody
      • RING finger protein 200 antibody
      see all


    • HeLa whole cell lysate (1 mg for IP, 20% of IP loaded).
      Lane 1: ab70889 at 3µg/ml for IP.
      Lane 2: ab70890 at 3µg/ml for IP.
      Lane 3: ab70891 at 3µg/ml for IP.
      Lane 4: IgG control
      Subsequent Western Blotting was carried out using ab70889 at 1µg/ml.
      Detection: Chemiluminescence with an exposure time of 10 seconds.


    ab70890 has not yet been referenced specifically in any publications.

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