Seroatlas · Human Serome Atlas

PCDH15

Protocadherin-15

Also known as: CDHR15, DFNB23, PCD15_HUMAN, USH1F

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

Protein identityUniProt · HPA

UniProt accession
Q96QU1
Gene
PCDH15
Ensembl
ENSG00000150275
Chromosome
10
Canonical length
1955 aa
Protein class
Disease related genes, Human disease related genes, Plasma proteins, Predicted intracellular proteins, Predicted membrane proteins
Subcellular location
Nucleoplasm,Golgi apparatus,Vesicles,Plasma membrane,Focal adhesion sites
Secretome location
Intracellular and membrane

OverviewNCBI Gene

This gene is a member of the cadherin superfamily. Family members encode integral membrane proteins that mediate calcium-dependent cell-cell adhesion. It plays an essential role in maintenance of normal retinal and cochlear function. Mutations in this gene result in hearing loss and Usher Syndrome Type IF (USH1F). Extensive alternative splicing resulting in multiple isoforms has been observed in the mouse ortholog. Similar alternatively spliced transcripts are inferred to occur in human, and additional variants are likely to occur. [provided by RefSeq, Dec 2008]

Canonical amino-acid sequenceUniProt

1955 residues, UniProt reviewed canonical sequence.

>Q96QU1|PCDH15
     1  MFRQFYLWTC LASGIILGSL FEICLGQYDD DCKLARGGPP ATIVAIDEES RNGTILVDNM
    61  LIKGTAGGPD PTIELSLKDN VDYWVLMDPV KQMLFLNSTG RVLDRDPPMN IHSIVVQVQC
   121  INKKVGTIIY HEVRIVVRDR NDNSPTFKHE SYYATVNELT PVGTTIFTGF SGDNGATDID
   181  DGPNGQIEYV IQYNPDDPTS NDTFEIPLML TGNIVLRKRL NYEDKTRYFV IIQANDRAQN
   241  LNERRTTTTT LTVDVLDGDD LGPMFLPCVL VPNTRDCRPL TYQAAIPELR TPEELNPIIV
   301  TPPIQAIDQD RNIQPPSDRP GILYSILVGT PEDYPRFFHM HPRTAELSLL EPVNRDFHQK
   361  FDLVIKAEQD NGHPLPAFAG LHIEILDENN QSPYFTMPSY QGYILESAPV GATISDSLNL
   421  TSPLRIVALD KDIEDTKDPE LHLFLNDYTS VFTVTQTGIT RYLTLLQPVD REEQQTYTFS
   481  ITAFDGVQES EPVIVNIQVM DANDNTPTFP EISYDVYVYT DMRPGDSVIQ LTAVDADEGS
   541  NGEITYEILV GAQGDFIINK TTGLITIAPG VEMIVGRTYA LTVQAADNAP PAERRNSICT
   601  VYIEVLPPNN QSPPRFPQLM YSLEISEAMR VGAVLLNLQA TDREGDSITY AIENGDPQRV
   661  FNLSETTGIL TLGKALDRES TDRYILIITA SDGRPDGTST ATVNIVVTDV NDNAPVFDPY
   721  LPRNLSVVEE EANAFVGQVK ATDPDAGING QVHYSLGNFN NLFRITSNGS IYTAVKLNRE
   781  VRDYYELVVV ATDGAVHPRH STLTLAIKVL DIDDNSPVFT NSTYTVLVEE NLPAGTTILQ
   841  IEAKDVDLGA NVSYRIRSPE VKHFFALHPF TGELSLLRSL DYEAFPDQEA SITFLVEAFD
   901  IYGTMPPGIA TVTVIVKDMN DYPPVFSKRI YKGMVAPDAV KGTPITTVYA EDADPPGLPA
   961  SRVRYRVDDV QFPYPASIFE VEEDSGRVIT RVNLNEEPTT IFKLVVVAFD DGEPVMSSSA
  1021  TVKILVLHPG EIPRFTQEEY RPPPVSELAT KGTMVGVISA AAINQSIVYS IVSGNEEDTF
  1081  GINNITGVIY VNGPLDYETR TSYVLRVQAD SLEVVLANLR VPSKSNTAKV YIEIQDENNH
  1141  PPVFQKKFYI GGVSEDARMF TSVLRVKATD KDTGNYSVMA YRLIIPPIKE GKEGFVVETY
  1201  TGLIKTAMLF HNMRRSYFKF QVIATDDYGK GLSGKADVLV SVVNQLDMQV IVSNVPPTLV
  1261  EKKIEDLTEI LDRYVQEQIP GAKVVVESIG ARRHGDAFSL EDYTKCDLTV YAIDPQTNRA
  1321  IDRNELFKFL DGKLLDINKD FQPYYGEGGR ILEIRTPEAV TSIKKRGESL GYTEGALLAL
  1381  AFIIILCCIP AILVVLVSYR QFKVRQAECT KTARIQAALP AAKPAVPAPA PVAAPPPPPP
  1441  PPPGAHLYEE LGDSSILFLL YHFQQSRGNN SVSEDRKHQQ VVMPFSSNTI EAHKSAHVDG
  1501  SLKSNKLKSA RKFTFLSDED DLSAHNPLYK ENISQVSTNS DISQRTDFVD PFSPKIQAKS
  1561  KSLRGPREKI QRLWSQSVSL PRRLMRKVPN RPEIIDLQQW QGTRQKAENE NTGICTNKRG
  1621  SSNPLLTTEE ANLTEKEEIR QGETLMIEGT EQLKSLSSDS SFCFPRPHFS FSTLPTVSRT
  1681  VELKSEPNVI SSPAECSLEL SPSRPCVLHS SLSRRETPIC MLPIETERNI FENFAHPPNI
  1741  SPSACPLPPP PPISPPSPPP APAPLAPPPD ISPFSLFCPP PSPPSIPLPL PPPTFFPLSV
  1801  STSGPPTPPL LPPFPTPLPP PPPSIPCPPP PSASFLSTEC VCITGVKCTT NLMPAEKIKS
  1861  SMTQLSTTTV CKTDPQREPK GILRHVKNLA ELEKSVANMY SQIEKNYLRT NVSELQTMCP
  1921  SEVTNMEITS EQNKGSLNNI VEGTEKQSHS QSTSL

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PCDH15 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
Cell surface
Secreted
No
Transmembrane segments
1
Mean surface accessibility (rSASA)
0.4
Highest tissue expression
57 nTPM

Expression across tissuesHPA

Tissue

  • retina: 57 nTPM
  • adrenal gland: 18 nTPM
  • amygdala: 8.1 nTPM
  • kidney: 7.4 nTPM
  • hippocampal formation: 7.1 nTPM
  • hypothalamus: 6.7 nTPM

Single-cell type

  • oligodendrocyte progenitor cells: 4,342 nCPM
  • pituicytes/fscs: 3,767 nCPM
  • rod photoreceptor cells: 2,706 nCPM
  • cone photoreceptor cells: 1,969 nCPM
  • lactotrophs: 1,040 nCPM
  • adrenal cortex cells: 1,027 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: 48 nTPM
  • hippocampal formation: 39 nTPM
  • medulla oblongata: 35 nTPM
  • midbrain: 35 nTPM
  • amygdala: 32 nTPM
  • pons: 31 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about PCDH15.

Disease | AllUniProt

Conditions PCDH15 is implicated in, by any mechanism.

Disease | GeneticClinVar

529 pathogenic / likely-pathogenic of 3,828 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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)
0.79
gnomAD pLI
0
gnomAD missense Z
-1.68
DepMap mean gene effect
0.05
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% 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

InteractionsUniProt · HPA

Protein binding partners of PCDH15 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads PCDH15 as an antibody target. Whether an autoantibody or antibody against PCDH15 could matter depends on whether native PCDH15 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

PCDH15 is annotated at the cell surface, where native PCDH15 is exposed to circulating antibodies and is a prime autoantibody target that could block, deplete, or overstimulate it.

Annotation status

The present source text does not explicitly label PCDH15 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/PCDH15. 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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