UBE2O
(E3-independent) E2 ubiquitin-conjugating enzyme
Also known as: E2-230K, UBE2O_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9C0C9
- Gene
- UBE2O
- Ensembl
- ENSG00000175931
- Chromosome
- 17
- Canonical length
- 1292 aa
- Protein class
- Enzymes, Metabolic proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Nuclear bodies
OverviewNCBI Gene
Enables ubiquitin conjugating enzyme activity and ubiquitin protein ligase activity. Involved in positive regulation of BMP signaling pathway; protein ubiquitination; and retrograde transport, endosome to Golgi. Located in cytoplasm and nuclear body. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
1292 residues, UniProt reviewed canonical sequence.
>Q9C0C9|UBE2O
1 MADPAAPTPA APAPAQAPAP APEAVPAPAA APVPAPAPAS DSASGPSSDS GPEAGSQRLL
61 FSHDLVSGRY RGSVHFGLVR LIHGEDSDSE GEEEGRGSSG CSEAGGAGHE EGRASPLRRG
121 YVRVQWYPEG VKQHVKETKL KLEDRSVVPR DVVRHMRSTD SQCGTVIDVN IDCAVKLIGT
181 NCIIYPVNSK DLQHIWPFMY GDYIAYDCWL GKVYDLKNQI ILKLSNGARC SMNTEDGAKL
241 YDVCPHVSDS GLFFDDSYGF YPGQVLIGPA KIFSSVQWLS GVKPVLSTKS KFRVVVEEVQ
301 VVELKVTWIT KSFCPGGTDS VSPPPSVITQ ENLGRVKRLG CFDHAQRQLG ERCLYVFPAK
361 VEPAKIAWEC PEKNCAQGEG SMAKKVKRLL KKQVVRIMSC SPDTQCSRDH SMEDPDKKGE
421 SKTKSEAESA SPEETPDGSA SPVEMQDEGA EEPHEAGEQL PPFLLKEGRD DRLHSAEQDA
481 DDEAADDTDD TSSVTSSASS TTSSQSGSGT SRKKSIPLSI KNLKRKHKRK KNKITRDFKP
541 GDRVAVEVVT TMTSADVMWQ DGSVECNIRS NDLFPVHHLD NNEFCPGDFV VDKRVQSCPD
601 PAVYGVVQSG DHIGRTCMVK WFKLRPSGDD VELIGEEEDV SVYDIADHPD FRFRTTDIVI
661 RIGNTEDGAP HKEDEPSVGQ VARVDVSSKV EVVWADNSKT IILPQHLYNI ESEIEESDYD
721 SVEGSTSGAS SDEWEDDSDS WETDNGLVED EHPKIEEPPI PPLEQPVAPE DKGVVISEEA
781 ATAAVQGAVA MAAPMAGLME KAGKDGPPKS FRELKEAIKI LESLKNMTVE QLLTGSPTSP
841 TVEPEKPTRE KKFLDDIKKL QENLKKTLDN VAIVEEEKME AVPDVERKED KPEGQSPVKA
901 EWPSETPVLC QQCGGKPGVT FTSAKGEVFS VLEFAPSNHS FKKIEFQPPE AKKFFSTVRK
961 EMALLATSLP EGIMVKTFED RMDLFSALIK GPTRTPYEDG LYLFDIQLPN IYPAVPPHFC
1021 YLSQCSGRLN PNLYDNGKVC VSLLGTWIGK GTERWTSKSS LLQVLISIQG LILVNEPYYN
1081 EAGFDSDRGL QEGYENSRCY NEMALIRVVQ SMTQLVRRPP EVFEQEIRQH FSTGGWRLVN
1141 RIESWLETHA LLEKAQALPN GVPKASSSPE PPAVAELSDS GQQEPEDGGP APGEASQGSD
1201 SEGGAQGLAS ASRDHTDQTS ETAPDASVPP SVKPKKRRKS YRSFLPEKSG YPDIGFPLFP
1261 LSKGFIKSIR GVLTQFRAAL LEAGMPECTE DKLocalizationUniProt · AlphaFold · HPA
Whether an antibody against UBE2O can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.44
- Highest tissue expression
- 30 nTPM
Expression across tissuesHPA
Tissue
- cerebellum: 30 nTPM
- skeletal muscle: 27 nTPM
- cerebral cortex: 27 nTPM
- bone marrow: 20 nTPM
- heart muscle: 19 nTPM
- pituitary gland: 18 nTPM
Single-cell type
- retinal ganglion cells: 193 nCPM
- retinal horizontal cells: 164 nCPM
- retinal amacrine cells: 146 nCPM
- myonuclei: 113 nCPM
- cone photoreceptor cells: 112 nCPM
- somatotrophs: 102 nCPM
Immune cell
- naive B-cell: 1.6 nTPM
- plasmacytoid DC: 1.5 nTPM
- gdT-cell: 1.4 nTPM
- naive CD8 T-cell: 1.1 nTPM
- eosinophil: 1 nTPM
- memory B-cell: 0.9 nTPM
Brain region
- cerebral cortex: 75 nTPM
- pons: 69 nTPM
- medulla oblongata: 60 nTPM
- white matter: 53 nTPM
- basal ganglia: 51 nTPM
- hippocampal formation: 49 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.14
- gnomAD pLI
- 1
- gnomAD missense Z
- 3.44
- DepMap mean gene effect
- -0.32
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 10% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- positive regulation of BMP signaling pathway
- protein K63-linked ubiquitination
- protein monoubiquitination
- retrograde transport, endosome to Golgi
Molecular functions
- ATP binding
- RNA binding
- ubiquitin conjugating enzyme activity
- ubiquitin protein ligase activity
- ubiquitin-protein transferase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Ubiquitin-conjugating (UBC), catalytic core domain
- Ubiquitin-conjugating enzyme/RWD-like
- Ubiquitin-conjugating enzyme
- UBE2O, N-terminal SH3-A domain
- UBE2O-like, SH3-B domain
- UBE2O-like, SH3-C domain
- UBE2O-like, tandem tSH3-B domain
- UBE2O, SH3-B domain
- UBE2O, ubiquitin binding SH3-C domain
- UBE2O, tandem tSH3-B domain
- UBE2O, N-terminal SH3-A domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of UBE2O in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads UBE2O as an antibody target. Whether an autoantibody or antibody against UBE2O could matter depends on whether native UBE2O is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
UBE2O is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label UBE2O as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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