USP26
Ubiquitin carboxyl-terminal hydrolase 26
Also known as: UBP26_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q9BXU7
- Gene
- USP26
- Ensembl
- ENSG00000134588
- Chromosome
- X
- Canonical length
- 913 aa
- Protein class
- Enzymes, Metabolic proteins, Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Cytosol
OverviewNCBI Gene
This gene encodes a member of the ubiquitin-specific processing (UBP) family of proteases and is a deubiquitinating enzyme (DUB) with His and Cys domains. It is specifically expressed in testis tissue. Mutations in this gene have been associated with Sertoli cell-only syndrome and male infertility. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
913 residues, UniProt reviewed canonical sequence.
>Q9BXU7|USP26
1 MAALFLRGFV QIGNCKTGIS KSKEAFIEAV ERKKKDRLVL YFKSGKYSTF RLSDNIQNVV
61 LKSYRGNQNH LHLTLQNNNG LFIEGLSSTD AEQLKIFLDR VHQNEVQPPV RPGKGGSVFS
121 STTQKEINKT SFHKVDEKSS SKSFEIAKGS GTGVLQRMPL LTSKLTLTCG ELSENQHKKR
181 KRMLSSSSEM NEEFLKENNS VEYKKSKADC SRCVSYNREK QLKLKELEEN KKLECESSCI
241 MNATGNPYLD DIGLLQALTE KMVLVFLLQQ GYSDGYTKWD KLKLFFELFP EKICHGLPNL
301 GNTCYMNAVL QSLLSIPSFA DDLLNQSFPW GKIPLNALTM CLARLLFFKD TYNIEIKEML
361 LLNLKKAISA AAEIFHGNAQ NDAHEFLAHC LDQLKDNMEK LNTIWKPKSE FGEDNFPKQV
421 FADDPDTSGF SCPVITNFEL ELLHSIACKA CGQVILKTEL NNYLSINLPQ RIKAHPSSIQ
481 STFDLFFGAE ELEYKCAKCE HKTSVGVHSF SRLPRILIVH LKRYSLNEFC ALKKNDQEVI
541 ISKYLKVSSH CNEGTRPPLP LSEDGEITDF QLLKVIRKMT SGNISVSWPA TKESKDILAP
601 HIGSDKESEQ KKGQTVFKGA SRRQQQKYLG KNSKPNELES VYSGDRAFIE KEPLAHLMTY
661 LEDTSLCQFH KAGGKPASSP GTPLSKVDFQ TVPENPKRKK YVKTSKFVAF DRIINPTKDL
721 YEDKNIRIPE RFQKVSEQTQ QCDGMRICEQ APQQALPQSF PKPGTQGHTK NLLRPTKLNL
781 QKSNRNSLLA LGSNKNPRNK DILDKIKSKA KETKRNDDKG DHTYRLISVV SHLGKTLKSG
841 HYICDAYDFE KQIWFTYDDM RVLGIQEAQM QEDRRCTGYI FFYMHNEIFE EMLKREENAQ
901 LNSKEVEETL QKELocalizationUniProt · AlphaFold · HPA
Whether an antibody against USP26 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)
- 0.47
- Highest tissue expression
- 0.4 nTPM
Expression across tissuesHPA
Tissue
- testis: 0.4 nTPM
- adipose tissue: 0 nTPM
- adrenal gland: 0 nTPM
- amygdala: 0 nTPM
- appendix: 0 nTPM
- basal ganglia: 0 nTPM
Single-cell type
- differentiating spermatogonia: 20 nCPM
- undifferentiated spermatogonia: 7.5 nCPM
- early primary spermatocytes: 4.5 nCPM
- retinal horizontal cells: 2 nCPM
- breast myoepithelial cells: 1.7 nCPM
- foveolar cells: 1.3 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- amygdala: 0.4 nTPM
- cerebral cortex: 0.4 nTPM
- white matter: 0.4 nTPM
- basal ganglia: 0.3 nTPM
- cerebellum: 0.3 nTPM
- choroid plexus: 0.3 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about USP26.
Disease | AllUniProt
Conditions USP26 is implicated in, by any mechanism.
- Spermatogenic failure, X-linked, 6 (SPGFX6) MIM:301101
Disease | GeneticClinVar
3 pathogenic / likely-pathogenic of 104 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Spermatogenic failure, X-linked, 6
- Male infertility
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 missense Z
- -0.08
- DepMap mean gene effect
- 0.25
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- G1/S transition of mitotic cell cycle
- negative regulation of proteasomal ubiquitin-dependent protein catabolic process
- protein deubiquitination
- proteolysis
- regulation of androgen receptor signaling pathway
- regulation of protein stability
- spermatogenesis
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Peptidase C19, ubiquitin carboxyl-terminal hydrolase
- Ubiquitin specific protease, conserved site
- Ubiquitin specific protease UPS, catalytic domain
- Ubiquitin carboxyl-terminal hydrolase 37, pleckstrin homology-like domain
- Ubiquitin carboxyl-terminal hydrolase 37, pleckstrin homology-like domain superfamily
- Papain-like cysteine peptidase superfamily
- Ubiquitin carboxyl-terminal hydrolases
- Ubiquitin carboxyl-terminal hydrolase
- N-terminal of ubiquitin carboxyl-terminal hydrolase 37
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of USP26 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 USP26 as an antibody target. Whether an autoantibody or antibody against USP26 could matter depends on whether native USP26 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
USP26 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 USP26 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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