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Protein

Ubiquitin-conjugating enzyme E2 B

Gene

UBE2B

Organism
Oryctolagus cuniculus (Rabbit)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at transcript leveli

Functioni

Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In association with the E3 enzyme BRE1 (RNF20 and/or RNF40), it plays a role in transcription regulation by catalyzing the monoubiquitination of histone H2B at 'Lys-120' to form H2BK120ub1. H2BK120ub1 gives a specific tag for epigenetic transcriptional activation, elongation by RNA polymerase II, telomeric silencing, and is also a prerequisite for H3K4me and H3K79me formation. In vitro catalyzes 'Lys-11'-, as well as 'Lys-48'- and 'Lys-63'-linked polyubiquitination. Required for postreplication repair of UV-damaged DNA. Associates to the E3 ligase RAD18 to form the UBE2B-RAD18 ubiquitin ligase complex involved in mono-ubiquitination of DNA-associated PCNA on 'Lys-164'. May be involved in neurite outgrowth (By similarity).By similarity

Catalytic activityi

ATP + ubiquitin + protein lysine = AMP + diphosphate + protein N-ubiquityllysine.PROSITE-ProRule annotation

Pathway:iprotein ubiquitination

This protein is involved in the pathway protein ubiquitination, which is part of Protein modification.PROSITE-ProRule annotation
View all proteins of this organism that are known to be involved in the pathway protein ubiquitination and in Protein modification.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei88 – 881Glycyl thioester intermediatePROSITE-ProRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Ligase

Keywords - Biological processi

DNA damage, DNA repair, Ubl conjugation pathway

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Enzyme and pathway databases

UniPathwayiUPA00143.

Names & Taxonomyi

Protein namesi
Recommended name:
Ubiquitin-conjugating enzyme E2 B (EC:6.3.2.19)
Alternative name(s):
RAD6 homolog B
Short name:
HR6B
Ubiquitin carrier protein B
Ubiquitin-conjugating enzyme E2(14k)
Ubiquitin-protein ligase B
Gene namesi
Name:UBE2B
Synonyms:RAD6B
OrganismiOryctolagus cuniculus (Rabbit)
Taxonomic identifieri9986 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresLagomorphaLeporidaeOryctolagus
ProteomesiUP000001811 Componenti: Chromosome 3

Subcellular locationi

  • Cell membrane By similarity
  • Nucleus By similarity

  • Note: In peripheral neurons, expressed both at the plasma membrane and in nuclei.By similarity

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cell membrane, Membrane, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 152152Ubiquitin-conjugating enzyme E2 BPRO_0000082449Add
BLAST

Interactioni

Subunit structurei

Interacts with RAD18, UBR2 and WAC.By similarity

Protein-protein interaction databases

BioGridi1172155. 1 interaction.
IntActiP63148. 1 interaction.
STRINGi9986.ENSOCUP00000013548.

Structurei

3D structure databases

ProteinModelPortaliP63148.
SMRiP63148. Positions 3-152.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the ubiquitin-conjugating enzyme family.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiCOG5078.
GeneTreeiENSGT00730000110565.
HOGENOMiHOG000233454.
HOVERGENiHBG063308.
InParanoidiP63148.
KOiK10574.
OMAiEQSWVDS.
OrthoDBiEOG7M0NTH.
TreeFamiTF101128.

Family and domain databases

Gene3Di3.10.110.10. 1 hit.
InterProiIPR000608. UBQ-conjugat_E2.
IPR023313. UBQ-conjugating_AS.
IPR016135. UBQ-conjugating_enzyme/RWD.
[Graphical view]
PfamiPF00179. UQ_con. 1 hit.
[Graphical view]
SUPFAMiSSF54495. SSF54495. 1 hit.
PROSITEiPS00183. UBIQUITIN_CONJUGAT_1. 1 hit.
PS50127. UBIQUITIN_CONJUGAT_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P63148-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSTPARRRLM RDFKRLQEDP PVGVSGAPSE NNIMQWNAVI FGPEGTPFED
60 70 80 90 100
GTFKLVIEFS EEYPNKPPTV RFLSKMFHPN VYADGSICLD ILQNRWSPTY
110 120 130 140 150
DVSSILTSIQ SLLDEPNPNS PANSQAAQLY QENKREYEKR VSAIVEQSWN

DS
Length:152
Mass (Da):17,312
Last modified:September 27, 2004 - v1
Checksum:iCFDEEEE7E06840BE
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M62387 mRNA. Translation: AAA31492.1.
PIRiA42416.
RefSeqiNP_001075765.1. NM_001082296.1.
UniGeneiOcu.1605.

Genome annotation databases

EnsembliENSOCUT00000015769; ENSOCUP00000013548; ENSOCUG00000015774.
GeneIDi100009132.
KEGGiocu:100009132.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M62387 mRNA. Translation: AAA31492.1.
PIRiA42416.
RefSeqiNP_001075765.1. NM_001082296.1.
UniGeneiOcu.1605.

3D structure databases

ProteinModelPortaliP63148.
SMRiP63148. Positions 3-152.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi1172155. 1 interaction.
IntActiP63148. 1 interaction.
STRINGi9986.ENSOCUP00000013548.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSOCUT00000015769; ENSOCUP00000013548; ENSOCUG00000015774.
GeneIDi100009132.
KEGGiocu:100009132.

Organism-specific databases

CTDi7320.

Phylogenomic databases

eggNOGiCOG5078.
GeneTreeiENSGT00730000110565.
HOGENOMiHOG000233454.
HOVERGENiHBG063308.
InParanoidiP63148.
KOiK10574.
OMAiEQSWVDS.
OrthoDBiEOG7M0NTH.
TreeFamiTF101128.

Enzyme and pathway databases

UniPathwayiUPA00143.

Family and domain databases

Gene3Di3.10.110.10. 1 hit.
InterProiIPR000608. UBQ-conjugat_E2.
IPR023313. UBQ-conjugating_AS.
IPR016135. UBQ-conjugating_enzyme/RWD.
[Graphical view]
PfamiPF00179. UQ_con. 1 hit.
[Graphical view]
SUPFAMiSSF54495. SSF54495. 1 hit.
PROSITEiPS00183. UBIQUITIN_CONJUGAT_1. 1 hit.
PS50127. UBIQUITIN_CONJUGAT_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "A rabbit reticulocyte ubiquitin carrier protein that supports ubiquitin-dependent proteolysis (E214k) is homologous to the yeast DNA repair gene RAD6."
    Wing S.S., Dumas F., Banville D.
    J. Biol. Chem. 267:6495-6501(1992) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].

Entry informationi

Entry nameiUBE2B_RABIT
AccessioniPrimary (citable) accession number: P63148
Secondary accession number(s): P23567, Q9D0J6
Entry historyi
Integrated into UniProtKB/Swiss-Prot: September 27, 2004
Last sequence update: September 27, 2004
Last modified: July 22, 2015
This is version 79 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.