CDC34 SCF E2 ubiquitin-protein ligase catalytic subunit CDC34 [Saccharomyces cerevisiae S288C] - Gene

Summary

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Official Symbol: CDC34
Official Full Name: SCF E2 ubiquitin-protein ligase catalytic subunit CDC34
Primary source: SGD:S000002461
Locus tag: YDR054C
See related: AllianceGenome:SGD:S000002461; FungiDB:YDR054C; VEuPathDB:YDR054C
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Saccharomyces cerevisiae S288C (strain: S288C)
Lineage: Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes; Saccharomycetales; Saccharomycetaceae; Saccharomyces
Also known as: DNA6; UBC3
Summary: Enables ubiquitin-protein transferase activity. Contributes to ubiquitin protein ligase activity. Involved in G2/M transition of mitotic cell cycle; SCF-dependent proteasomal ubiquitin-dependent protein catabolic process; and protein ubiquitination. Located in cytoplasm and nucleus. Part of SCF ubiquitin ligase complex. Used to study azoospermia and congenital heart disease. Orthologous to several human genes including CDC34 (cell division cycle 34, ubiqiutin conjugating enzyme) and UBE2R2 (ubiquitin conjugating enzyme E2 R2). [provided by Alliance of Genome Resources, Dec 2024]
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Genomic context

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See CDC34 in Genome Data Viewer

Location:: chromosome: IV

Exon count:: 1

Sequence:: Chromosome: IV; NC_001136.10 (561440..562327, complement)

Chromosome IV - NC_001136.10 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:: NC_001136.10

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Cdc34 phosphorylation by PKA and Sch9 provides a direct tether between G1 cell division events and cell growth
Title: Nutrient sensing kinases PKA and Sch9 phosphorylate the catalytic domain of the ubiquitin-conjugating enzyme Cdc34.
Cdc34 showed a strong preference for Ub lysine 48 (K48), with lower activity towards lysine 11 (K11) and lysine 63 (K63).
Title: Molecular and structural insight into lysine selection on substrate and ubiquitin lysine 48 by the ubiquitin-conjugating enzyme Cdc34.
chromosome segregation in cdc6 mutant is caused by the deregulation of spindle dynamics induced via a regulatory network involving the ubiquitin-conjugating enzyme Cdc34, microtubule-associated proteins and the anaphase-promoting complex activator Cdh1.
Title: "Reductional anaphase" in replication-defective cells is caused by ubiquitin-conjugating enzyme Cdc34-mediated deregulation of the spindle.
Cdc34 is particularly sensitive to oxidative inactivation, through sequestration of the catalytic cysteine in a disulfide complex with Uba1, by levels of oxidant that do not reduce global ubiquitinylation of proteins.
Title: Oxidative stress responses involve oxidation of a conserved ubiquitin pathway enzyme.
Through analysis of the phenotype of a mutant missing a highly conserved sequence motif within the catalytic domain of Cdc34, we discovered previously unrecognized levels of regulation
Title: New insight into the role of the Cdc34 ubiquitin-conjugating enzyme in cell cycle regulation via Ace2 and Sic1.
Data show that proximal amino acids surrounding the lysine residues in Sic1 and Ub are critical for ubiquitination, and that this mechanism is linked to key residues composing the catalytic core of Cdc34 and independent of SCF.
Title: Molecular basis for lysine specificity in the yeast ubiquitin-conjugating enzyme Cdc34.
The acidic tail of the Cdc34 ubiquitin-conjugating enzyme functions in both binding to and catalysis with ubiquitin ligase SCFCdc4.
Title: The acidic tail of the Cdc34 ubiquitin-conjugating enzyme functions in both binding to and catalysis with ubiquitin ligase SCFCdc4.
The CK2 phosphorylation of catalytic domain of Cdc34 modulates its activity at the G1 to S transition in Saccharomyces cerevisiae.
Title: The CK2 phosphorylation of catalytic domain of Cdc34 modulates its activity at the G1 to S transition in Saccharomyces cerevisiae.
In in vitro experiments with single-lysine-containing Cdc34 mutant proteins of Saccharomyces cerevisiae, the SCF-mediated stimulation of autoubiquitination is limited to specific N-terminal lysines modified via an intermolecular mechanism.
Title: SCF E3-mediated autoubiquitination negatively regulates activity of Cdc34 E2 but plays a nonessential role in the catalytic cycle in vitro and in vivo.
We propose that interactions between Cdc34 approximately Ub and SCF directly activate ubiquitin transfer within a substrate-SCF-Cdc34 approximately Ub ternary complex.
Title: Evaluation of a diffusion-driven mechanism for substrate ubiquitination by the SCF-Cdc34 ubiquitin ligase complex.

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Homology

Orthologs from OrthoDB

Gene Ontology Provided by SGD

Function	Evidence Code	Pubs
enables ATP binding	IEA Inferred from Electronic Annotation more info
enables transferase activity	IEA Inferred from Electronic Annotation more info
enables ubiquitin conjugating enzyme activity	IBA Inferred from Biological aspect of Ancestor more info
enables ubiquitin conjugating enzyme activity	IEA Inferred from Electronic Annotation more info
contributes_to ubiquitin protein ligase activity	IDA Inferred from Direct Assay more info	PubMed
contributes_to ubiquitin-protein transferase activity	IDA Inferred from Direct Assay more info	PubMed
enables ubiquitin-protein transferase activity	IDA Inferred from Direct Assay more info	PubMed
enables ubiquitin-protein transferase activity	IMP Inferred from Mutant Phenotype more info	PubMed

Process	Evidence Code	Pubs
involved_in DNA replication	IEA Inferred from Electronic Annotation more info
involved_in G2/M transition of mitotic cell cycle	IGI Inferred from Genetic Interaction more info	PubMed
involved_in SCF-dependent proteasomal ubiquitin-dependent protein catabolic process	IDA Inferred from Direct Assay more info	PubMed
involved_in cell division	IEA Inferred from Electronic Annotation more info
involved_in proteasome-mediated ubiquitin-dependent protein catabolic process	IBA Inferred from Biological aspect of Ancestor more info
involved_in protein autoubiquitination	IDA Inferred from Direct Assay more info	PubMed
involved_in protein autoubiquitination	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in protein polyubiquitination	IBA Inferred from Biological aspect of Ancestor more info
involved_in protein polyubiquitination	IDA Inferred from Direct Assay more info	PubMed
involved_in protein ubiquitination	IEA Inferred from Electronic Annotation more info
involved_in ubiquitin-dependent protein catabolic process	IDA Inferred from Direct Assay more info	PubMed

Component	Evidence Code	Pubs
part_of SCF ubiquitin ligase complex	IDA Inferred from Direct Assay more info	PubMed
part_of SCF ubiquitin ligase complex	IMP Inferred from Mutant Phenotype more info	PubMed
part_of SCF ubiquitin ligase complex	IPI Inferred from Physical Interaction more info	PubMed
located_in chromosome, telomeric region	IEA Inferred from Electronic Annotation more info
located_in cytoplasm	IDA Inferred from Direct Assay more info	PubMed
located_in cytoplasm	IEA Inferred from Electronic Annotation more info
located_in nucleus	IDA Inferred from Direct Assay more info	PubMed
located_in nucleus	IEA Inferred from Electronic Annotation more info

General protein information

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Preferred Names: SCF E2 ubiquitin-protein ligase catalytic subunit CDC34

NP_010339.1

EC 2.3.2.23

Ubiquitin-conjugating enzyme (E2); catalytic subunit of SCF ubiquitin-protein ligase complex (together with Skp1p, Rbx1p, Cdc53p, and an F-box protein) that regulates cell cycle progression by targeting key substrates for degradation; protein abundance increases in response to DNA replication stress; human CDC34 functionally complements the thermosensitivity of the cdc34-2 mutant

NCBI Reference Sequences (RefSeq)

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Genome Annotation

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference assembly

Genomic

NC_001136.10 Reference assembly

Range

561440..562327 complement

Download

GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

NM_001180362.1 → NP_010339.1 TPA: SCF E2 ubiquitin-protein ligase catalytic subunit CDC34 [Saccharomyces cerevisiae S288C]

See identical proteins and their annotated locations for NP_010339.1

Status: REVIEWED

UniProtKB/Swiss-Prot

D6VS40, P14682

UniProtKB/TrEMBL

A6ZY19, B3LGL5, C7GT97, C8Z4X3, G2WAF8

Conserved Domains (1) summary

COG5078
Location:3 → 170

COG5078; Ubiquitin-protein ligase [Posttranslational modification, protein turnover, chaperones]