Seroatlas · Human Serome Atlas

CCDC54

Coiled-coil domain-containing protein 54

Also known as: CCD54_HUMAN, FLJ25362, NYD-SP17, SP17

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

Protein identityUniProt · HPA

UniProt accession
Q8NEL0
Gene
CCDC54
Ensembl
ENSG00000138483
Chromosome
3
Canonical length
328 aa
Protein class
Predicted intracellular proteins

OverviewNCBI Gene

No narrative summary is available for CCDC54 in this catalog release; identity and structured annotations are shown without generated factual claims.

Canonical amino-acid sequenceUniProt

328 residues, UniProt reviewed canonical sequence.

>Q8NEL0|CCDC54
     1  MYTLHTKRVK AAARQMWTSN LSKVRQSLKN VYHKCKIRHQ DSTGYPTVTS DDCNQDDDSY
    61  DGKMNLPVVL QDVKTAQVEL FSQMTDIVHM IPKVQEKTDL YQKQMEVLET RMNVNEDKQC
   121  TTTKDILSMK EDIKALKKKV TELEIQNSCS TIHCLEILEG ERGKEITELL YKLIQPATLK
   181  NTLASTDMEI SSAEPEKVPS YPKSTDHLEK KTISPQMKTL KKRNHQNASR SFEKAKPNIY
   241  IYPDFSTWIK LTFVHGGKWT FFLSATKLEE FIQWLLSRPT ILPEEPQVIT QRYCPFTGPI
   301  LSLTTICLSI FNNIYGFICS LKEEVTRL

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against CCDC54 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)
0.57
Highest tissue expression
116 nTPM

Expression across tissuesHPA

Tissue

  • testis: 116 nTPM
  • placenta: 0.9 nTPM
  • heart muscle: 0.7 nTPM
  • epididymis: 0.2 nTPM
  • ovary: 0.2 nTPM
  • prostate: 0.2 nTPM

Single-cell type

  • late spermatids: 5,192 nCPM
  • early spermatids: 1,586 nCPM
  • late primary spermatocytes: 608 nCPM
  • sertoli cells: 6.7 nCPM
  • leydig cells: 4.4 nCPM
  • cardiomyocytes: 4 nCPM

Immune cell

  • naive B-cell: 0.2 nTPM
  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM

Brain region

  • white matter: 4.2 nTPM
  • basal ganglia: 2.2 nTPM
  • thalamus: 1.9 nTPM
  • cerebral cortex: 1.8 nTPM
  • hippocampal formation: 1.5 nTPM
  • medulla oblongata: 1.5 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)
1.91
gnomAD pLI
0
gnomAD missense Z
0.17
DepMap mean gene effect
0.09
DepMap dependency class
none

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

  • Coiled-coil domain-containing protein 54

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads CCDC54 as an antibody target. Whether an autoantibody or antibody against CCDC54 could matter depends on whether native CCDC54 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

CCDC54 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 CCDC54 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/CCDC54. 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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