Seroatlas · Human Serome Atlas

C3orf70

UPF0524 protein C3orf70

Also known as: CC070_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
A6NLC5
Gene
C3orf70
Ensembl
ENSG00000187068
Chromosome
3
Canonical length
250 aa
Protein class
Cancer-related genes, Predicted intracellular proteins
Subcellular location
Cytosol

OverviewNCBI Gene

Predicted to be involved in circadian behavior and nervous system development. [provided by Alliance of Genome Resources, Jul 2025]

Canonical amino-acid sequenceUniProt

250 residues, UniProt reviewed canonical sequence.

>A6NLC5|C3orf70
     1  MSAAASPASE RGWKSEKLDE AQALARSCAA RRPDFQPCDG LSICATHSHG KCFKLHWCCH
    61  LGWCHCKYMY QPMTPVEQLP STEIPARPRE PTNTIQISVS LTEHFLKFAS VFQPPLPPDS
   121  PRYCMISDLF IDNYQVKCIN GKMCYVQKQP APHSHRMSPE EVSAHDALIS KESNTPKIDH
   181  CSSPSSSEDS GINAIGAHYV ESCDEDTEEG AELSSEEDYS PESSWEPDEC TLLSPSQSDL
   241  EVIETIETTV

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against C3orf70 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)
0.64
Highest tissue expression
14 nTPM

Expression across tissuesHPA

Tissue

  • smooth muscle: 14 nTPM
  • amygdala: 9.4 nTPM
  • basal ganglia: 9.1 nTPM
  • colon: 8.8 nTPM
  • cerebral cortex: 8.7 nTPM
  • seminal vesicle: 7.9 nTPM

Single-cell type

  • oligodendrocyte progenitor cells: 206 nCPM
  • retinal bipolar cells: 148 nCPM
  • smooth muscle cells: 143 nCPM
  • bergmann glia: 103 nCPM
  • astrocytes: 82 nCPM
  • sertoli cells: 81 nCPM

Immune cell

  • basophil: 0.5 nTPM
  • neutrophil: 0.4 nTPM
  • eosinophil: 0.2 nTPM
  • classical monocyte: 0.1 nTPM
  • memory B-cell: 0.1 nTPM
  • naive B-cell: 0.1 nTPM

Brain region

  • medulla oblongata: 41 nTPM
  • white matter: 36 nTPM
  • spinal cord: 36 nTPM
  • thalamus: 33 nTPM
  • midbrain: 31 nTPM
  • amygdala: 30 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)
1.59
gnomAD pLI
0
gnomAD missense Z
-0.08
DepMap mean gene effect
-0.04
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Protein domainsUniProt · Pfam · InterPro

  • UPF0524 family
  • UPF0524 of C3orf70

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads C3orf70 as an antibody target. Whether an autoantibody or antibody against C3orf70 could matter depends on whether native C3orf70 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

C3orf70 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 C3orf70 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/C3orf70. 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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