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Q5R4V7 (UB2D3_PONAB) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 60. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Ubiquitin-conjugating enzyme E2 D3

EC=6.3.2.19
Alternative name(s):
Ubiquitin carrier protein D3
Ubiquitin-protein ligase D3
Gene names
Name:UBE2D3
OrganismPongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii) [Reference proteome]
Taxonomic identifier9601 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaePongo

Protein attributes

Sequence length147 AA.
Sequence statusComplete.
Protein existenceEvidence at transcript level

General annotation (Comments)

Function

Accepts ubiquitin from the E1 complex and catalyzes its covalent attachment to other proteins. In vitro catalyzes 'Lys-11'-, as well as 'Lys-48'-linked polyubiquitination. Cooperates with the E2 CDC34 and the SCF(FBXW11) E3 ligase complex for the polyubiquitination of NFKBIA leading to its subsequent proteasomal degradation. Acts as an initiator E2, priming the phosphorylated NFKBIA target at positions 'Lys-21' and/or 'Lys-22' with a monoubiquitin. Ubiquitin chain elongation is then performed by CDC34, building ubiquitin chains from the UBE2D3-primed NFKBIA-linked ubiquitin. Acts also as an initiator E2, in conjunction with RNF8, for the priming of PCNA. Monoubiquitination of PCNA, and its subsequent polyubiquitination, are essential events in the operation of the DNA damage tolerance (DDT) pathway that is activated after DNA damage caused by UV or chemical agents during S-phase. Associates with the BRCA1/BARD1 E3 ligase complex to perform ubiquitination at DNA damage sites following ionizing radiation leading to DNA repair. Targets DAPK3 for ubiquitination which influences promyelocytic leukemia protein nuclear body (PML-NB) formation in the nucleus. In conjunction with the MDM2 and TOPORS E3 ligases, functions ubiquitination of p53/TP53. Supports NRDP1-mediated ubiquitination and degradation of ERBB3 and of BRUCE which triggers apoptosis. In conjunction with the CBL E3 ligase, targets EGFR for polyubiquitination at the plasma membrane as well as during its internalization and transport on endosomes. In conjunction with the STUB1 E3 quality control E3 ligase, ubiquitinates unfolded proteins to catalyze their immediate destruction By similarity.

Catalytic activity

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

Pathway

Protein modification; protein ubiquitination.

Subunit structure

Interacts with SCF (SKP1-CUL1-F-box protein) E3 ubiquitin ligase complex; when Cullin is neddylated, the interaction between the E2 and the SCF complex is strengthened. Interacts with DAPK3. Interacts with BRCA1; the DNA damage checkpoint promotes the association with BRCA1 after ionizing radiation. Interacts non-covalently with ubiquitin. Interacts with E3 ubiquitin-protein ligase CBLC By similarity.

Subcellular location

Cell membrane; Peripheral membrane protein By similarity. Endosome membrane; Peripheral membrane protein By similarity.

Post-translational modification

Phosphorylated by AURKB By similarity.

Sequence similarities

Belongs to the ubiquitin-conjugating enzyme family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 147147Ubiquitin-conjugating enzyme E2 D3
PRO_0000271225

Sites

Active site851Glycyl thioester intermediate By similarity

Amino acid modifications

Disulfide bond21 ↔ 107 By similarity

Sequences

Sequence LengthMass (Da)Tools
Q5R4V7 [UniParc].

Last modified December 21, 2004. Version 1.
Checksum: ADD74A8A708EFEE3

FASTA14716,687
        10         20         30         40         50         60 
MALKRINKEL SDLARDPPAQ CSAGPVGDDM FHWQATIMGP NDSPYQGGVF FLTIHFPTDY 

        70         80         90        100        110        120 
PFKPPKVAFT TRIYHPNINS NGSICLDILR SQWSPALTIS KVLLSICSLL CDPNPDDPLV 

       130        140 
PEIARIYKTD RDKYNRISRE WTQKYAM 

« Hide

References

[1]The German cDNA consortium
Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Tissue: Brain cortex.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CR861134 mRNA. Translation: CAH93209.1.
RefSeqXP_002815054.1. XM_002815008.2.
XP_002815055.1. XM_002815009.1.
XP_002815056.1. XM_002815010.2.
XP_002815057.1. XM_002815011.2.
XP_003776546.1. XM_003776498.1.
XP_003776547.1. XM_003776499.1.
XP_003776548.1. XM_003776500.1.
XP_003776549.1. XM_003776501.1.
XP_003776550.1. XM_003776502.1.
UniGenePab.19661.

3D structure databases

ProteinModelPortalQ5R4V7.
SMRQ5R4V7. Positions 1-147.
ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

GeneID100462331.
KEGGpon:100462331.

Organism-specific databases

CTD7323.

Phylogenomic databases

HOVERGENHBG063308.
KOK06689.

Enzyme and pathway databases

UniPathwayUPA00143.

Family and domain databases

Gene3D3.10.110.10. 1 hit.
InterProIPR000608. UBQ-conjugat_E2.
IPR023313. UBQ-conjugating_AS.
IPR016135. UBQ-conjugating_enzyme/RWD.
[Graphical view]
PfamPF00179. UQ_con. 1 hit.
[Graphical view]
SUPFAMSSF54495. SSF54495. 1 hit.
PROSITEPS00183. UBIQUITIN_CONJUGAT_1. 1 hit.
PS50127. UBIQUITIN_CONJUGAT_2. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameUB2D3_PONAB
AccessionPrimary (citable) accession number: Q5R4V7
Entry history
Integrated into UniProtKB/Swiss-Prot: January 9, 2007
Last sequence update: December 21, 2004
Last modified: April 16, 2014
This is version 60 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways