Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Small ubiquitin-related modifier 2

Gene

Sumo2

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Ubiquitin-like protein that can be covalently attached to proteins as a monomer or as a lysine-linked polymer. Covalent attachment via an isopeptide bond to its substrates requires prior activation by the E1 complex SAE1-SAE2 and linkage to the E2 enzyme UBE2I, and can be promoted by an E3 ligase such as PIAS1-4, RANBP2 or CBX4. This post-translational modification on lysine residues of proteins plays a crucial role in a number of cellular processes such as nuclear transport, DNA replication and repair, mitosis and signal transduction. Polymeric SUMO2 chains are also susceptible to polyubiquitination which functions as a signal for proteasomal degradation of modified proteins. Plays a role in the regulation of sumoylation status of SETX (By similarity).By similarity

GO - Molecular functioni

  • protein tag Source: GO_Central
  • retinoid X receptor binding Source: RGD
  • ubiquitin protein ligase binding Source: UniProtKB

GO - Biological processi

  • cellular protein localization Source: UniProtKB
  • negative regulation of transcription, DNA-templated Source: UniProtKB
  • positive regulation of protein sumoylation Source: RGD
  • protein sumoylation Source: UniProtKB

Keywordsi

Biological processUbl conjugation pathway

Names & Taxonomyi

Protein namesi
Recommended name:
Small ubiquitin-related modifier 2
Short name:
SUMO-2
Alternative name(s):
SMT3 homolog 2
Sentrin-2
Ubiquitin-like protein SMT3A
Short name:
Smt3A
Gene namesi
Name:Sumo2
Synonyms:Smt3a, Smt3h2
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Unplaced

Organism-specific databases

RGDi621761. Sumo2.

Subcellular locationi

GO - Cellular componenti

  • nucleus Source: RGD
  • PML body Source: UniProtKB

Keywords - Cellular componenti

Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000359551 – 93Small ubiquitin-related modifier 2Add BLAST93
PropeptideiPRO_000003595694 – 95By similarity2

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Cross-linki1Peptide (Met-Gly) (interchain with G-Cter in ubiquitin)By similarity
Cross-linki5Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)By similarity
Cross-linki7Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)By similarity
Modified residuei11N6-acetyllysine; alternateBy similarity1
Cross-linki11Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO); alternateBy similarity
Cross-linki11Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO1); alternateBy similarity
Cross-linki11Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2); alternateBy similarity
Cross-linki11Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin); alternateBy similarity
Cross-linki21Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)By similarity
Cross-linki93Glycyl lysine isopeptide (Gly-Lys) (interchain with K-? in acceptor proteins)PROSITE-ProRule annotation

Post-translational modificationi

Polymeric chains can be formed through Lys-11 cross-linking. Polymeric SUMO2 chains undergo 'Lys-6'-, 'Lys-11'-, 'Lys-48'- and 'Lys-63'-linked polyubiquitination by RNF4 (By similarity).By similarity
Cleavage of precursor form by SENP1 or SENP2 is necessary for function.By similarity
Monoubiquitinated N-terminally by UBE2W, which primes it for RNF4-dependent polyubiquitination by the UBE2V1-UBE2N heterodimer.By similarity

Keywords - PTMi

Acetylation, Isopeptide bond, Ubl conjugation

Proteomic databases

PaxDbiP61959.
PRIDEiP61959.

PTM databases

iPTMnetiP61959.
PhosphoSitePlusiP61959.

Interactioni

Subunit structurei

Interacts with SAE2 and UBE2I. Interacts with ZNF451. Identified in a complex with ZNF451 and UBE2I/UBC9, where one ZNF451 interacts with one UBE2I/UBC9 and two SUMO2 chains, one bound to the UBE2I/UBC9 active site and the other to another region of the same UBE2I/UBC9 molecule. Covalently attached to a number of proteins. Interacts with PELP1. Interacts with USP25; the interaction sumoylates USP25. Interacts with SIMC1, CASP8AP2, RNF111 AND SOBP (via SIM domains). Interacts with MTA1.By similarity

GO - Molecular functioni

  • retinoid X receptor binding Source: RGD
  • ubiquitin protein ligase binding Source: UniProtKB

Protein-protein interaction databases

BioGridi605061. 3 interactors.
DIPiDIP-46502N.
STRINGi10116.ENSRNOP00000044856.

Structurei

3D structure databases

ProteinModelPortaliP61959.
SMRiP61959.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini16 – 95Ubiquitin-likePROSITE-ProRule annotationAdd BLAST80

Sequence similaritiesi

Belongs to the ubiquitin family. SUMO subfamily.Curated

Phylogenomic databases

eggNOGiKOG1769. Eukaryota.
COG5227. LUCA.
HOGENOMiHOG000207495.
HOVERGENiHBG053025.
InParanoidiP61959.
KOiK12160.
PhylomeDBiP61959.

Family and domain databases

CDDicd01763. Sumo. 1 hit.
InterProiView protein in InterPro
IPR022617. Rad60/SUMO-like_dom.
IPR033950. Sumo.
IPR027218. SUMO_2/3.
IPR029071. Ubiquitin-rel_dom.
IPR000626. Ubiquitin_dom.
PANTHERiPTHR10562:SF33. PTHR10562:SF33. 1 hit.
PfamiView protein in Pfam
PF11976. Rad60-SLD. 1 hit.
SMARTiView protein in SMART
SM00213. UBQ. 1 hit.
SUPFAMiSSF54236. SSF54236. 1 hit.
PROSITEiView protein in PROSITE
PS50053. UBIQUITIN_2. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P61959-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MADEKPKEGV KTENNDHINL KVAGQDGSVV QFKIKRHTPL SKLMKAYCER
60 70 80 90
QGLSMRQIRF RFDGQPINET DTPAQLEMED EDTIDVFQQQ TGGVY
Length:95
Mass (Da):10,871
Last modified:June 7, 2004 - v1
Checksum:iF8F0426849BEF08B
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L79949 mRNA. Translation: AAL40175.1.
BC058446 mRNA. Translation: AAH58446.1.
BC078746 mRNA. Translation: AAH78746.1.
RefSeqiNP_598278.1. NM_133594.2.
UniGeneiRn.154659.
Rn.224526.
Rn.26720.

Genome annotation databases

GeneIDi690244.
KEGGirno:690244.

Similar proteinsi

Entry informationi

Entry nameiSUMO2_RAT
AccessioniPrimary (citable) accession number: P61959
Secondary accession number(s): P55855
Entry historyiIntegrated into UniProtKB/Swiss-Prot: June 7, 2004
Last sequence update: June 7, 2004
Last modified: August 30, 2017
This is version 102 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families