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Protein

Small ubiquitin-related modifier 2

Gene

SUMO2

Organism
Sus scrofa (Pig)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

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

GO - Biological processi

Keywordsi

Biological processUbl conjugation pathway

Enzyme and pathway databases

ReactomeiR-SSC-196791 Vitamin D (calciferol) metabolism
R-SSC-3065679 SUMO is proteolytically processed
R-SSC-3108214 SUMOylation of DNA damage response and repair proteins
R-SSC-3232118 SUMOylation of transcription factors
R-SSC-4551638 SUMOylation of chromatin organization proteins
R-SSC-4570464 SUMOylation of RNA binding proteins
R-SSC-4615885 SUMOylation of DNA replication proteins
R-SSC-5693607 Processing of DNA double-strand break ends
R-SSC-5696395 Formation of Incision Complex in GG-NER

Names & Taxonomyi

Protein namesi
Recommended name:
Small ubiquitin-related modifier 2
Short name:
SUMO-2
Alternative name(s):
MIF2 suppressor
SMT3 homolog 2
Sentrin-2
Ubiquitin-like protein SMT3A
Short name:
Smt3A
Gene namesi
Name:SUMO2
Synonyms:SMT3A, SMT3H2
OrganismiSus scrofa (Pig)
Taxonomic identifieri9823 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaSuinaSuidaeSus
Proteomesi
  • UP000008227 Componenti: Chromosome 12

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000359531 – 93Small ubiquitin-related modifier 2Add BLAST93
PropeptideiPRO_000003595494 – 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

PaxDbiP61958
PeptideAtlasiP61958

Expressioni

Gene expression databases

BgeeiENSSSCG00000017212
GenevisibleiP61958 SS

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

Protein-protein interaction databases

STRINGi9823.ENSSSCP00000018235

Structurei

3D structure databases

ProteinModelPortaliP61958
SMRiP61958
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
GeneTreeiENSGT00390000018808
HOVERGENiHBG053025
InParanoidiP61958
KOiK12160
OMAiNDTIDVM
OrthoDBiEOG091G10ZQ
TreeFamiTF315116

Family and domain databases

CDDicd01763 Sumo, 1 hit
InterProiView protein in InterPro
IPR022617 Rad60/SUMO-like_dom
IPR033950 Sumo
IPR029071 Ubiquitin-like_domsf
IPR000626 Ubiquitin_dom
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.

P61958-1 [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
L77617 mRNA Translation: AAL40163.1
AM397626 mRNA Translation: CAL37097.1
RefSeqiNP_999149.1, NM_213984.1
UniGeneiSsc.5454

Genome annotation databases

EnsembliENSSSCT00000018737; ENSSSCP00000018235; ENSSSCG00000017212
GeneIDi397044
KEGGissc:397044

Similar proteinsi

Entry informationi

Entry nameiSUMO2_PIG
AccessioniPrimary (citable) accession number: P61958
Secondary accession number(s): A7WLH9, P55855
Entry historyiIntegrated into UniProtKB/Swiss-Prot: June 7, 2004
Last sequence update: June 7, 2004
Last modified: February 28, 2018
This is version 106 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, Reference proteome