Seroatlas · Human Serome Atlas

C22orf23

UPF0193 protein EVG1

Also known as: EVG1, EVG1_HUMAN, FLJ32787, LOC84645

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q9BZE7
Gene
C22orf23
Ensembl
ENSG00000128346
Chromosome
22
Canonical length
217 aa
Protein class
Predicted intracellular proteins
Subcellular location
Nucleoplasm

OverviewNCBI Gene

No narrative summary is available for C22orf23 in this catalog release; identity and structured annotations are shown without generated factual claims.

Canonical amino-acid sequenceUniProt

217 residues, UniProt reviewed canonical sequence.

>Q9BZE7|C22orf23
     1  MASQKQMEVV TKGTGFRRRP KTITYTPGTC ELLRVMMKES KLTNIQQRHI MDIMKRGDAL
    61  PLQCSPTSSQ RVLPSKQIAS PIYLPPILAA RPHLRPANMC QANGAYSREQ FKPQATRDLE
   121  KEKQRLQNIF ATGKDMEERK RKAPPARQKA PAPELDRFEE LVKEIQERKE FLADMEALGQ
   181  GKQYRGIILA EISQKLREME DIDHRRSEEL RKGLATT

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against C22orf23 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
Unknown
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.53
Highest tissue expression
88 nTPM

Expression across tissuesHPA

Tissue

  • testis: 88 nTPM
  • skin: 25 nTPM
  • esophagus: 13 nTPM
  • fallopian tube: 12 nTPM
  • choroid plexus: 11 nTPM
  • salivary gland: 9.7 nTPM

Single-cell type

  • late primary spermatocytes: 615 nCPM
  • late spermatids: 481 nCPM
  • early spermatids: 243 nCPM
  • early primary spermatocytes: 74 nCPM
  • respiratory ciliated cells: 49 nCPM
  • epididymal efferent duct ciliated cells: 43 nCPM

Immune cell

  • basophil: 0.1 nTPM
  • gdT-cell: 0.1 nTPM
  • MAIT T-cell: 0.1 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • intermediate monocyte: 0 nTPM

Brain region

  • white matter: 40 nTPM
  • medulla oblongata: 36 nTPM
  • midbrain: 30 nTPM
  • pons: 29 nTPM
  • thalamus: 29 nTPM
  • cerebellum: 28 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)
1.83
gnomAD pLI
0
gnomAD missense Z
0.31
DepMap mean gene effect
-0.05
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

Protein domainsUniProt · Pfam · InterPro

  • Uncharacterised protein family UPF0193
  • Uncharacterised protein family (UPF0193)

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads C22orf23 as an antibody target. Whether an autoantibody or antibody against C22orf23 could matter depends on whether native C22orf23 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

C22orf23 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 C22orf23 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/C22orf23. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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