Seroatlas · Human Serome Atlas

C3orf49

Putative uncharacterized protein C3orf49

Also known as: CC049_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q96BT1
Gene
C3orf49
Ensembl
ENSG00000163632
Chromosome
3
Canonical length
292 aa
Protein class
Predicted intracellular proteins
Subcellular location
Vesicles,Centrosome,Cytosol

OverviewNCBI Gene

No narrative summary is available for C3orf49 in this catalog release; identity and structured annotations are shown without generated factual claims.

Canonical amino-acid sequenceUniProt

292 residues, UniProt reviewed canonical sequence.

>Q96BT1|C3orf49
     1  MAQPQLYLPE PFKIAYRKVG QCRRFQQLKK KNGSFKRKGI ERWHRAVSTN LLKQNVLVPK
    61  EESSSDSDMG FHESQQNQKS NLKTKVKTAF GRMLSYKYRS KPACASQEGS TDHKEALLSN
   121  TQSLLPRIVK EFSSPKLFTA KMRKLSENAT IQLDVVEAET EEITQGNTLL RARRTTKRLS
   181  VTSLPSGLQK GPYSPKKRPH FPALKKKKRG MENILRKSDL TVGKLQMQVD DLIETVTDKS
   241  MKLLAQRHAE LQQCEFLGDE ILQSSKQFQR ISKRTMRKYK LKNMTTKGPG DS

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against C3orf49 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)
0.69
Highest tissue expression
1.3 nTPM

Expression across tissuesHPA

Tissue

  • cerebral cortex: 1.3 nTPM
  • retina: 1.2 nTPM
  • testis: 1.2 nTPM
  • skeletal muscle: 1 nTPM
  • skin: 0.8 nTPM
  • esophagus: 0.7 nTPM

Single-cell type

  • late spermatids: 50 nCPM
  • cardiomyocytes: 43 nCPM
  • myonuclei: 33 nCPM
  • early spermatids: 28 nCPM
  • adipocytes: 24 nCPM
  • myosatellite cells: 17 nCPM

Immune cell

  • NK-cell: 0.3 nTPM
  • basophil: 0.2 nTPM
  • naive CD4 T-cell: 0.2 nTPM
  • gdT-cell: 0.1 nTPM
  • memory CD8 T-cell: 0.1 nTPM
  • naive B-cell: 0.1 nTPM

Brain region

  • cerebral cortex: 18 nTPM
  • cerebellum: 17 nTPM
  • white matter: 17 nTPM
  • basal ganglia: 14 nTPM
  • hippocampal formation: 13 nTPM
  • amygdala: 11 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)
1.47
gnomAD pLI
0
gnomAD missense Z
1.11

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

  • C3orf49-like

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads C3orf49 as an antibody target. Whether an autoantibody or antibody against C3orf49 could matter depends on whether native C3orf49 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

C3orf49 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 C3orf49 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/C3orf49. 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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