• NatureRecombinant
  • SourceEscherichia coli
  • Amino Acid Sequence
    • AccessionP49427
    • SpeciesHuman
    • Molecular weight32 kDa including tags
    • Amino acids1 to 236
    • TagsHis tag N-Terminus


Our Abpromise guarantee covers the use of ab111450 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications


  • Purity> 95 % SDS-PAGE.

  • FormLiquid
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.

    pH: 8.00
    Constituents: 1.2% HEPES, 0.292% Sodium chloride, 0.02% DTT

General Info

  • Alternative names
    • Cdc 34
    • Cdc34
    • Cell division cycle 34
    • Cell division cycle 34 homolog
    • Cell division cycle 34 homolog (S. cerevisiae)
    • E2 CDC34
    • UB2R1_HUMAN
    • UBC 3
    • UBC3
    • UBCH3
    • UBE2 R1
    • UBE2R1
    • Ubiquitin carrier protein
    • Ubiquitin conjugating enzyme Cdc34
    • Ubiquitin conjugating enzyme E2 32 kDa complementing
    • Ubiquitin protein ligase
    • Ubiquitin protein ligase R1
    • Ubiquitin-conjugating enzyme E2 R1
    • Ubiquitin-conjugating enzyme E2-32 kDa complementing
    • Ubiquitin-conjugating enzyme E2-CDC34
    • Ubiquitin-protein ligase R1
    see all
  • FunctionAccepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In vitro catalyzes 'Lys-48'-linked polyubiquitination. Cooperates with the E2 UBCH5C and the SCF(FBXW11) E3 ligase complex for the polyubiquitination of NFKBIA leading to its subsequent proteasomal degradation. Performs ubiquitin chain elongation building ubiquitin chains from the UBE2D3-primed NFKBIA-linked ubiquitin. UBE2D3 acts as an initiator E2, priming the phosphorylated NFKBIA target at positions 'Lys-21' and/or 'Lys-22' with a monoubiquitin. Cooperates with the SCF(SKP2) E3 ligase complex to regulate cell proliferation through ubiquitination and degradation of MYBL2 and KIP1. Involved in ubiquitin conjugation and degradation of CREM isoform ICERIIgamma and ATF15 resulting in abrogation of ICERIIgamma- and ATF5-mediated repression of cAMP-induced transcription during both meiotic and mitotic cell cycles. Involved in the regulation of the cell cycle G2/M phase throught its targeting of the WEE1 kinase for ubiquitination and degradation. Also involved in the degradation of beta-catenin. Is target of human herpes virus 1 protein ICP0, leading to ICP0-dependent dynamic interaction with proteasomes.
  • Tissue specificityExpressed in testes during spermatogenesis to regulate repression of cAMP-induced transcription.
  • PathwayProtein modification; protein ubiquitination.
  • Sequence similaritiesBelongs to the ubiquitin-conjugating enzyme family.
  • DomainThe C-terminal acidic tail is required for nuclear localization and is involved in the binding to SCF E3 ligase complexes, and more specifically with the CUL1 subunit.
  • Post-translational
    Autoubiquitinated. Autoubiquitination is promoted by the human herpes virus 1 protein ICP0 and leads to degradation by the Ubiquitin-proteasomal pathway.
    Phosphorylated by CK2. Phosphorylation of the C-terminal tail by CK2 controles the nuclear localization.
  • Cellular localizationCytoplasm. Nucleus. The phosphorylation of the C-terminal tail plays an important role in mediating nuclear localization. Colocalizes with beta-tubulin on mitotic spindles in anaphase.
  • Information by UniProt

References for Recombinant Human Cdc34 protein (ab111450)

ab111450 has not yet been referenced specifically in any publications.

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