UBE2B ubiquitin conjugating enzyme E2 B [Homo sapiens (human)] - Gene

Summary

Official Symbol: UBE2Bprovided by HGNC
Official Full Name: ubiquitin conjugating enzyme E2 Bprovided by HGNC
Primary source: HGNC:HGNC:12473
See related: Ensembl:ENSG00000119048 MIM:179095; AllianceGenome:HGNC:12473
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: HR6B; UBC2; HHR6B; RAD6B; E2-17kDa
Summary: The modification of proteins with ubiquitin is an important cellular mechanism for targeting abnormal or short-lived proteins for degradation. Ubiquitination involves at least three classes of enzymes: ubiquitin-activating enzymes, or E1s, ubiquitin-conjugating enzymes, or E2s, and ubiquitin-protein ligases, or E3s. This gene encodes a member of the E2 ubiquitin-conjugating enzyme family. This enzyme is required for post-replicative DNA damage repair. Its protein sequence is 100% identical to the mouse, rat, and rabbit homologs, which indicates that this enzyme is highly conserved in eukaryotic evolution. [provided by RefSeq, Jul 2008]
Expression: Ubiquitous expression in adrenal (RPKM 31.0), heart (RPKM 26.8) and 25 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 5q31.1

Exon count:: 6

Annotation release	Status	Assembly	Chr	Location
RS_2025_08	current	GRCh38.p14 (GCF_000001405.40)	5	NC_000005.10 (134371569..134392108)
RS_2025_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	5	NC_060929.1 (134895355..134915908)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	5	NC_000005.9 (133707260..133727799)

Chromosome 5 - NC_000005.10 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Go to reference sequence details

Genomic Sequence:

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Expression

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See details

Project title: Tissue-specific circular RNA induction during human fetal development
Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
BioProject: PRJNA270632
Publication: PMID 26076956
Analysis date: Mon Apr 2 22:54:59 2018

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Mutations of Rad6 E2 ubiquitin-conjugating enzymes at alanine-126 in helix-3 affect ubiquitination activity and decrease enzyme stability.
Title: Mutations of Rad6 E2 ubiquitin-conjugating enzymes at alanine-126 in helix-3 affect ubiquitination activity and decrease enzyme stability.
UBE2B promotes ovarian cancer growth via promoting RAD18 mediated ZMYM2 monoubiquitination and stabilization.
Title: UBE2B promotes ovarian cancer growth via promoting RAD18 mediated ZMYM2 monoubiquitination and stabilization.
RAD6B Loss Disrupts Expression of Melanoma Phenotype in Part by Inhibiting WNT/beta-Catenin Signaling.
Title: RAD6B Loss Disrupts Expression of Melanoma Phenotype in Part by Inhibiting WNT/β-Catenin Signaling.
High Expression of UBE2B as a Poor Prognosis Factor in Patients With Rectal Cancer Following Chemoradiotherapy.
Title: High Expression of UBE2B as a Poor Prognosis Factor in Patients With Rectal Cancer Following Chemoradiotherapy.
These RAD6B activities are unaffected by BRCA1 status.
Title: RAD6B is a major mediator of triple negative breast cancer cisplatin resistance: Regulation of translesion synthesis/Fanconi anemia crosstalk and BRCA1 independence.
Authors confirmed that RAD6BDeltaexon4 and RAD6Bintron5ins variants are expressed as 14 and 15 kDa proteins, respectively, with functional in vivo ubiquitin conjugating activity.
Title: Alternative Splicing of RAD6B and Not RAD6A is Selectively Increased in Melanoma: Identification and Functional Characterization.
RAD6 is upregulated in response to chemotherapy and significantly correlated with expression of ovarian cancer (OC) stem cell signaling genes ALDH1A1 and SOX2 and poor prognosis of OC patients.
Title: RAD6 promotes DNA repair and stem cell signaling in ovarian cancer and is a promising therapeutic target to prevent and treat acquired chemoresistance.
These data deepen insights into the vital role of RAD6/translesion synthesis in platinum drug tolerance and reveal clinical benefits of targeting RAD6 with SMI#9 for managing chemoresistant cancers.
Title: Pharmacological targeting of RAD6 enzyme-mediated translesion synthesis overcomes resistance to platinum-based drugs.
These results point to an important role of the affinity between RNF4 and its cognate RAD6B or UBCH5B in governing the multiplicity of substrate ubiquitination.
Title: Role of E2-RING Interactions in Governing RNF4-Mediated Substrate Ubiquitination.
RAD6 promotes proteasome activity and nuclear translocation by enhancing the degradation of PSMF1 and the lamin B receptor.
Title: Interactome Analysis Reveals a Novel Role for RAD6 in the Regulation of Proteasome Activity and Localization in Response to DNA Damage.

Submit: New GeneRIF Correction See all GeneRIFs (32)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Interaction	Pubs
Knockdown of ubiquitin-conjugating enzyme E2B (UBE2B) by siRNA inhibits the early stages of HIV-1 replication in 293T cells infected with VSV-G pseudotyped HIV-1	PubMed

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

SGC32120 (e-PCR)
- UniSTS:99850

WI-20684 (e-PCR)
- UniSTS:66147

WI-16140 (e-PCR)
- UniSTS:6847

WI-20661 (e-PCR)
- UniSTS:78272

D5S1596E (e-PCR)
- UniSTS:151018

RH36042 (e-PCR)
- UniSTS:45043

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables ATP binding	IEA Inferred from Electronic Annotation more info
enables nucleotide binding	IEA Inferred from Electronic Annotation more info
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
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	IDA Inferred from Direct Assay more info	PubMed
enables ubiquitin conjugating enzyme activity	IEA Inferred from Electronic Annotation more info
enables ubiquitin protein ligase binding	IEA Inferred from Electronic Annotation more info
enables ubiquitin protein ligase binding	IPI Inferred from Physical Interaction more info	PubMed
enables ubiquitin-like protein transferase activity	IEA Inferred from Electronic Annotation more info
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 damage response	IDA Inferred from Direct Assay more info	PubMed
involved_in DNA damage response	IEA Inferred from Electronic Annotation more info
involved_in DNA repair	IBA Inferred from Biological aspect of Ancestor more info
involved_in DNA repair	IEA Inferred from Electronic Annotation more info
involved_in DNA repair	IGI Inferred from Genetic Interaction more info	PubMed
acts_upstream_of apoptotic process	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within chiasma assembly	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within chromatin organization	IEA Inferred from Electronic Annotation more info
acts_upstream_of ectopic germ cell programmed cell death	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within in utero embryonic development	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within meiotic telomere clustering	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within negative regulation of apoptotic process	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within negative regulation of developmental process	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within negative regulation of post-translational protein modification	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within negative regulation of reproductive process	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of canonical Wnt signaling pathway	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of canonical Wnt signaling pathway	ISS Inferred from Sequence or Structural Similarity more info
acts_upstream_of_or_within positive regulation of reciprocal meiotic recombination	IEA Inferred from Electronic Annotation more info
involved_in postreplication repair	IDA Inferred from Direct Assay more info	PubMed
involved_in postreplication repair	NAS Non-traceable Author Statement more info	PubMed
involved_in proteasome-mediated ubiquitin-dependent protein catabolic process	IBA Inferred from Biological aspect of Ancestor more info
involved_in proteasome-mediated ubiquitin-dependent protein catabolic process	IDA Inferred from Direct Assay more info	PubMed
involved_in protein K11-linked ubiquitination	IDA Inferred from Direct Assay more info	PubMed
involved_in protein K11-linked ubiquitination	IEA Inferred from Electronic Annotation more info
involved_in protein K48-linked ubiquitination	IDA Inferred from Direct Assay more info	PubMed
involved_in protein K48-linked ubiquitination	IEA Inferred from Electronic Annotation more info
involved_in protein K63-linked ubiquitination	IDA Inferred from Direct Assay more info	PubMed
involved_in protein autoubiquitination	IDA Inferred from Direct Assay more info	PubMed
involved_in protein polyubiquitination	IBA Inferred from Biological aspect of Ancestor more info
involved_in protein stabilization	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in protein ubiquitination	IDA Inferred from Direct Assay more info	PubMed
involved_in protein ubiquitination	IEA Inferred from Electronic Annotation more info
involved_in response to UV	IGI Inferred from Genetic Interaction more info	PubMed
involved_in response to xenobiotic stimulus	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within sperm axoneme assembly	IEA Inferred from Electronic Annotation more info
involved_in spermatogenesis	TAS Traceable Author Statement more info	PubMed
acts_upstream_of_or_within synaptonemal complex organization	IEA Inferred from Electronic Annotation more info
involved_in ubiquitin-dependent protein catabolic process	IDA Inferred from Direct Assay more info	PubMed
involved_in ubiquitin-dependent protein catabolic process	NAS Non-traceable Author Statement more info	PubMed

Component	Evidence Code	Pubs
part_of HULC complex	IBA Inferred from Biological aspect of Ancestor more info
part_of HULC complex	IDA Inferred from Direct Assay more info	PubMed
part_of HULC complex	IEA Inferred from Electronic Annotation more info
located_in XY body	IEA Inferred from Electronic Annotation more info
located_in chromatin	IEA Inferred from Electronic Annotation more info
located_in chromatin	ISS Inferred from Sequence or Structural Similarity more info
located_in cytoplasm	IDA Inferred from Direct Assay more info	PubMed
located_in membrane	IEA Inferred from Electronic Annotation more info
located_in nucleoplasm	TAS Traceable Author Statement more info
located_in nucleus	IDA Inferred from Direct Assay more info	PubMed
located_in nucleus	IEA Inferred from Electronic Annotation more info
located_in plasma membrane	IEA Inferred from Electronic Annotation more info
located_in replication fork	IDA Inferred from Direct Assay more info	PubMed

General protein information

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Preferred Names: ubiquitin-conjugating enzyme E2 B

Names: E2 protein; E2 ubiquitin-conjugating enzyme B; RAD6 homolog B; ubiquitin carrier protein B; ubiquitin conjugating enzyme E2B; ubiquitin-conjugating enzyme E2-17 kDa; ubiquitin-conjugating enzyme E2B (RAD6 homolog); ubiquitin-protein ligase B

NP_003328.1

EC 2.3.2.23

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.