Seroatlas · Human Serome Atlas

EFCAB2

Dynein regulatory complex protein 8

Also known as: CFAP200, DRC8, DRC8_HUMAN, MGC12458

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

Protein identityUniProt · HPA

UniProt accession
Q5VUJ9
Gene
EFCAB2
Ensembl
ENSG00000203666
Chromosome
1
Canonical length
269 aa
Protein class
Predicted intracellular proteins
Subcellular location
Plasma membrane,Mitochondria,Cytosol,Mid piece

OverviewNCBI Gene

The gene encodes a protein that contains two EF-hand calcium-binding domains although its function has yet to be determined. Alternatively spliced transcripts have been observed. [provided by RefSeq, Mar 2014]

Canonical amino-acid sequenceUniProt

269 residues, UniProt reviewed canonical sequence.

>Q5VUJ9|EFCAB2
     1  MLGPGQVRLR PRVWRDKAGG RVADGASGLP PARGSWRETG TGRALGASSP PRPAQGSSSP
    61  GIQSGPSSRP GSPRGAEQAG TPRPRLSLGI SQATGSAARW RTRRTGKGLG YNSDEIRPRT
   121  LLIEHLMEGG RRDHHTMTVL WGTQEIIVAE FHKKIKEAFE VFDHESNNTV DVREIGTIIR
   181  SLGCCPTEGE LHDLIAEVEE EEPTGYIRFE KFLPVMTEIL LERKYRPIPE DVLLRAFEVL
   241  DSAKRGFLTK DELIKYMTEE DGVSLRRPG

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against EFCAB2 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)
0.5
Highest tissue expression
22 nTPM

Expression across tissuesHPA

Tissue

  • fallopian tube: 22 nTPM
  • thyroid gland: 21 nTPM
  • choroid plexus: 20 nTPM
  • testis: 19 nTPM
  • endometrium: 18 nTPM
  • skeletal muscle: 18 nTPM

Single-cell type

  • ependymal cells: 865 nCPM
  • respiratory ciliated cells: 701 nCPM
  • choroid plexus epithelial cells: 565 nCPM
  • myonuclei: 559 nCPM
  • fallopian tube ciliated cells: 472 nCPM
  • epididymal efferent duct ciliated cells: 361 nCPM

Immune cell

  • plasmacytoid DC: 5.4 nTPM
  • neutrophil: 3.3 nTPM
  • myeloid DC: 3.1 nTPM
  • naive B-cell: 2.8 nTPM
  • eosinophil: 1.8 nTPM
  • memory B-cell: 1.7 nTPM

Brain region

  • choroid plexus: 41 nTPM
  • medulla oblongata: 28 nTPM
  • midbrain: 26 nTPM
  • white matter: 25 nTPM
  • spinal cord: 22 nTPM
  • cerebellum: 20 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)
1.54
gnomAD pLI
0
gnomAD missense Z
-0.25
DepMap mean gene effect
-0.13
DepMap dependency class
selective

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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads EFCAB2 as an antibody target. Whether an autoantibody or antibody against EFCAB2 could matter depends on whether native EFCAB2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

EFCAB2 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 EFCAB2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/EFCAB2. 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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