Seroatlas · Human Serome Atlas

ADGRF4

Adhesion G protein-coupled receptor F4

Also known as: AGRF4_HUMAN, FLJ38076, GPR115, PGR18

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

Protein identityUniProt · HPA

UniProt accession
Q8IZF3
Gene
ADGRF4
Ensembl
ENSG00000153294
Chromosome
6
Canonical length
695 aa
Protein class
G-protein coupled receptors, Predicted membrane proteins
Subcellular location
Mitochondria

OverviewNCBI Gene

Sequence analysis of this gene suggests that it is encodes a member of the superfamily of G protein-couple receptors. G protein-coupled receptors typically contain seven hydrophobic transmembrane domains, interact with guanine nucleotide binding regulatory proteins, and detect molecules outside the cell and act to transduce these signals into intracellular responses. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2016]

Canonical amino-acid sequenceUniProt

695 residues, UniProt reviewed canonical sequence.

>Q8IZF3|ADGRF4
     1  MKMKSQATMI CCLVFFLSTE CSHYRSKIHL KAGDKLQSPE GKPKTGRIQE KCEGPCISSS
    61  NCSQPCAKDF HGEIGFTCNQ KKWQKSAETC TSLSVEKLFK DSTGASRLSV AAPSIPLHIL
   121  DFRAPETIES VAQGIRKNCP FDYACITDMV KSSETTSGNI AFIVELLKNI STDLSDNVTR
   181  EKMKSYSEVA NHILDTAAIS NWAFIPNKNA SSDLLQSVNL FARQLHIHNN SENIVNELFI
   241  QTKGFHINHN TSEKSLNFSM SMNNTTEDIL GMVQIPRQEL RKLWPNASQA ISIAFPTLGA
   301  ILREAHLQNV SLPRQVNGLV LSVVLPERLQ EIILTFEKIN KTRNARAQCV GWHSKKRRWD
   361  EKACQMMLDI RNEVKCRCNY TSVVMSFSIL MSSKSMTDKV LDYITCIGLS VSILSLVLCL
   421  IIEATVWSRV VVTEISYMRH VCIVNIAVSL LTANVWFIIG SHFNIKAQDY NMCVAVTFFS
   481  HFFYLSLFFW MLFKALLIIY GILVIFRRMM KSRMMVIGFA IGYGCPLIIA VTTVAITEPE
   541  KGYMRPEACW LNWDNTKALL AFAIPAFVIV AVNLIVVLVV AVNTQRPSIG SSKSQDVVII
   601  MRISKNVAIL TPLLGLTWGF GIATLIEGTS LTFHIIFALL NAFQGFFILL FGTIMDHKIR
   661  DALRMRMSSL KGKSRAAENA SLGPTNGSKL MNRQG

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against ADGRF4 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
7
Mean surface accessibility (rSASA)
0.32
Highest tissue expression
37 nTPM

Expression across tissuesHPA

Tissue

  • skin: 37 nTPM
  • esophagus: 18 nTPM
  • vagina: 9.3 nTPM
  • cervix: 7.6 nTPM
  • urinary bladder: 4 nTPM
  • tonsil: 3.9 nTPM

Single-cell type

  • ocular epithelial cells: 125 nCPM
  • esophageal apical cells: 92 nCPM
  • esophageal suprabasal cells: 67 nCPM
  • suprabasal keratinocytes: 52 nCPM
  • urothelial cells: 49 nCPM
  • extravillous trophoblasts: 24 nCPM

Immune cell

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

Brain region

  • hypothalamus: 4.1 nTPM
  • cerebellum: 0.8 nTPM
  • midbrain: 0.5 nTPM
  • cerebral cortex: 0.3 nTPM
  • basal ganglia: 0.1 nTPM
  • medulla oblongata: 0.1 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)
1.22
gnomAD pLI
0
DepMap mean gene effect
0.1
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads ADGRF4 as an antibody target. Whether an autoantibody or antibody against ADGRF4 could matter depends on whether native ADGRF4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

ADGRF4 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 ADGRF4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/ADGRF4. 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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