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Q8AVU2

- UB2SB_XENLA

UniProt

Q8AVU2 - UB2SB_XENLA

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Protein
Ubiquitin-conjugating enzyme E2 S-B
Gene
ube2s-b, ube2s.1-b
Organism
Xenopus laevis (African clawed frog)
Status
Reviewed - Annotation score: 3 out of 5 - Experimental evidence at transcript leveli

Functioni

Catalyzes the covalent attachment of ubiquitin to other proteins. Acts as an essential factor of the anaphase promoting complex/cyclosome (APC/C), a cell cycle-regulated ubiquitin ligase that controls progression through mitosis. Acts by specifically elongating 'Lys-11'-linked polyubiquitin chains initiated by the E2 enzyme ube2c/ubch10 on APC/C substrates, enhancing the degradation of APC/C substrates by the proteasome and promoting mitotic exit By similarity.

Catalytic activityi

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

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei95 – 951Glycyl thioester intermediate By similarity

GO - Molecular functioni

  1. ATP binding Source: UniProtKB-KW
  2. acid-amino acid ligase activity Source: InterPro

GO - Biological processi

  1. activation of anaphase-promoting complex activity Source: UniProtKB
  2. anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process Source: UniProtKB
  3. exit from mitosis Source: UniProtKB
  4. free ubiquitin chain polymerization Source: UniProtKB
  5. protein K11-linked ubiquitination Source: UniProtKB
Complete GO annotation...

Keywords - Molecular functioni

Ligase

Keywords - Biological processi

Cell cycle, Cell division, Ubl conjugation pathway

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Enzyme and pathway databases

UniPathwayiUPA00143.

Names & Taxonomyi

Protein namesi
Recommended name:
Ubiquitin-conjugating enzyme E2 S-B (EC:6.3.2.19)
Alternative name(s):
Ubiquitin carrier protein S-B
Ubiquitin-protein ligase S-B
Gene namesi
Name:ube2s-b
Synonyms:ube2s.1-b
OrganismiXenopus laevis (African clawed frog)
Taxonomic identifieri8355 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusXenopus

Organism-specific databases

XenbaseiXB-GENE-1008024. ube2s.

Subcellular locationi

GO - Cellular componenti

  1. anaphase-promoting complex Source: UniProtKB
Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 211211Ubiquitin-conjugating enzyme E2 S-B
PRO_0000390432Add
BLAST

Interactioni

Protein-protein interaction databases

BioGridi97318. 4 interactions.

Structurei

3D structure databases

ProteinModelPortaliQ8AVU2.
SMRiQ8AVU2. Positions 6-156.

Family & Domainsi

Sequence similaritiesi

Phylogenomic databases

HOVERGENiHBG063308.

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.

Q8AVU2-1 [UniParc]FASTAAdd to Basket

« Hide

MNSNVENLPP HIIRRVYKEV STLTSDPPEG IKIIPNEEDI TDVQVNIEGP    50
EGTPYAGGMF RMKLILGKDF PAAPPKGYFL TKIFHPNVSN NGEICVNVLK 100
KDWKAELGIR HVLLTIKCLL IHPNPESALN EEAGRLLLEN YEEYASRARL 150
MTDIHAQGTS LRGKDPTDPC SSASTPVVSG DGPMAKKHAG DRDKKLAAKK 200
KTDKKRALRR L 211
Length:211
Mass (Da):23,359
Last modified:March 1, 2003 - v1
Checksum:iEA930D5B61E9D251
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
BC041263 mRNA. Translation: AAH41263.1.
BC106317 mRNA. Translation: AAI06318.1.
RefSeqiNP_001079388.1. NM_001085919.1.
UniGeneiXl.32557.

Genome annotation databases

GeneIDi379075.
KEGGixla:379075.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
BC041263 mRNA. Translation: AAH41263.1 .
BC106317 mRNA. Translation: AAI06318.1 .
RefSeqi NP_001079388.1. NM_001085919.1.
UniGenei Xl.32557.

3D structure databases

ProteinModelPortali Q8AVU2.
SMRi Q8AVU2. Positions 6-156.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

BioGridi 97318. 4 interactions.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

GeneIDi 379075.
KEGGi xla:379075.

Organism-specific databases

CTDi 379075.
Xenbasei XB-GENE-1008024. ube2s.

Phylogenomic databases

HOVERGENi HBG063308.

Enzyme and pathway databases

UniPathwayi UPA00143 .

Family and domain databases

Gene3Di 3.10.110.10. 1 hit.
InterProi IPR000608. UBQ-conjugat_E2.
IPR023313. UBQ-conjugating_AS.
IPR016135. UBQ-conjugating_enzyme/RWD.
[Graphical view ]
Pfami PF00179. UQ_con. 1 hit.
[Graphical view ]
SUPFAMi SSF54495. SSF54495. 1 hit.
PROSITEi PS00183. UBIQUITIN_CONJUGAT_1. 1 hit.
PS50127. UBIQUITIN_CONJUGAT_2. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. NIH - Xenopus Gene Collection (XGC) project
    Submitted (OCT-2005) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
    Tissue: Embryo and Testis.

Entry informationi

Entry nameiUB2SB_XENLA
AccessioniPrimary (citable) accession number: Q8AVU2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 15, 2009
Last sequence update: March 1, 2003
Last modified: September 3, 2014
This is version 66 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Documents

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

External Data

Dasty 3

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