All Photos(3)



Anti-CDC34 antibody produced in rabbit

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Anti-Ubiquitin-conjugating enzyme E2 R1, Anti-Ubiquitin-conjugating enzyme E2-32 kDa complementing, Anti-E2- CDC34, Anti-Ubiquitin-protein ligase R1
MDL number:
Human Protein Atlas Number:

biological source


Quality Level



antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity



antibody small pack of 25 μL


immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:50-1:200

immunogen sequence


UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... CDC34(997)

General description

CDC34 (cell division cycle 34), a ubiquitin carrier protein, belongs to the ubiquitin-conjugating enzyme family.


Ubiquitin-conjugating enzyme E2 R1 recombinant protein epitope signature tag (PrEST)


All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project ( as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit

Biochem/physiol Actions

CDC34 (cell division cycle 34) is involved in G1 to S phase transition and checkpoint function in the cell cycle. It also acts in conjugation with SCF ubiquitin ligase complexes. It initiates DNA replication by proteolytic degradation of cyclin-dependent kinases (CDKs) inhibitor. In early mitosis, it has been found with (β)-tubulin at the mitotic spindle and at the last phase of mitosis it may contribute to spindle function. It promotes cell cycle progression by directly influencing chromosome and spindle formation. CDC34, a phosphoprotein, shows kinase activity in proliferating cells by casein kinase 2 (CK2) mediated phosphorylation which further control the CDC34 cell localization and function.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.


Corresponding Antigen APREST86192.

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

10 - Combustible liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

Keiko Takagi et al.
Biomedical reports, 7(1), 41-46 (2017-07-08)
Despite tremendous efforts to develop curative agents, there are few effective drugs for the treatment of hepatocellular carcinoma (HCC). This is predominantly due to the variations in individual HCC cases. As numerous HCC cases have no mutations in known tumor-associated
K Block et al.
The Journal of biological chemistry, 276(44), 41049-41058 (2001-09-08)
The ubiquitin-conjugating enzyme, CDC34, has been implicated in the ubiquitination of a number of vertebrate substrates, including p27(Kip1), IkappaBalpha, Wee1, and MyoD. We show that mammalian CDC34 is a phosphoprotein that is phosphorylated in proliferating cells. By yeast two-hybrid screening
D Pati et al.
Molecular and cellular biology, 19(7), 5001-5013 (1999-06-22)
Ubiquitin-mediated proteolysis controls diverse physiological processes in eukaryotes. However, few in vivo targets of the mammalian Cdc34 and Rad6 ubiquitin-conjugating enzymes are known. A yeast-based genetic assay to identify proteins that interact with human Cdc34 resulted in three cDNAs encoding
R W King et al.
Science (New York, N.Y.), 274(5293), 1652-1659 (1996-12-06)
Oscillations in the activity of cyclin-dependent kinases (CDKs) promote progression through the eukaryotic cell cycle. This review examines how proteolysis regulates CDK activity-by degrading CDK activators or inhibitors-and also how proteolysis may directly trigger the transition from metaphase to anaphase.
F Reymond et al.
Journal of cell science, 113 ( Pt 10), 1687-1694 (2000-04-19)
Present in organisms ranging from yeast to man, homologues of the Saccharomyces cerevisiae ubiquitin-conjugating enzyme CDC34 have been shown to play important roles in the regulation of cell cycle progression and checkpoint function. Here we analyze the expression and intracellular

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