FRMPD4
FERM and PDZ domain-containing protein 4
Also known as: FRPD4_HUMAN, KIAA0316, PDZD10, PDZK10
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q14CM0
- Gene
- FRMPD4
- Ensembl
- ENSG00000169933
- Chromosome
- X
- Canonical length
- 1322 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins
OverviewNCBI Gene
This gene encodes a multi-domain (WW, PDZ, FERM) containing protein. Through its interaction with other proteins (such as PSD-95), it functions as a positive regulator of dendritic spine morphogenesis and density, and is required for the maintenance of excitatory synaptic transmission. [provided by RefSeq, Jan 2010]
Canonical amino-acid sequenceUniProt
1322 residues, UniProt reviewed canonical sequence.
>Q14CM0|FRMPD4
1 MDVFSFVKIA KLSSHRTKSS GWPPPSGTWG LSQVPPYGWE MTANRDGRDY FINHMTQAIP
61 FDDPRLESCQ IIPPAPRKVE MRRDPVLGFG FVAGSEKPVV VRSVTPGGPS EGKLIPGDQI
121 VMINDEPVSA APRERVIDLV RSCKESILLT VIQPYPSPKS AFISAAKKAR LKSNPVKVRF
181 SEEVIINGQV SETVKDNSLL FMPNVLKVYL ENGQTKSFRF DCSTSIKDVI LTLQEKLSIK
241 GIEHFSLMLE QRTEGAGTKL LLLHEQETLT QVTQRPSSHK MRCLFRISFV PKDPIDLLRR
301 DPVAFEYLYV QSCNDVVQER FGPELKYDIA LRLAALQMYI ATVTTKQTQK ISLKYIEKEW
361 GLETFLPSAV LQSMKEKNIK KALSHLVKAN QNLVPPGKKL SALQAKVHYL KFLSDLRLYG
421 GRVFKATLVQ AEKRSEVTLL VGPRYGISHV INTKTNLVAL LADFSHVNRI EMFSEEESLV
481 RVELHVLDVK PITLLMESSD AMNLACLTAG YYRLLVDSRR SIFNMANKKN TATQETGPEN
541 KGKHNLLGPD WNCIPQMTTF IGEGEQEAQI TYIDSKQKTV EITDSTMCPK EHRHLYIDNA
601 YSSDGLNQQL SQPGEAPCEA DYRSLAQRSL LTLSGPETLK KAQESPRGAK VSFIFGDFAL
661 DDGISPPTLG YETLLDEGPE MLEKQRNLYI GSANDMKGLD LTPEAEGIQF VENSVYANIG
721 DVKSFQAAEG IEEPLLHDIC YAENTDDAED EDEVSCEEDL VVGEMNQPAI LNLSGSSDDI
781 IDLTSLPPPE GDDNEDDFLL RSLNMAIAAP PPGFRDSSDE EDSQSQAASF PEDKEKGSSL
841 QNDEIPVSLI DAVPTSAEGK CEKGLDNAVV STLGALEALS VSEEQQTSDN SGVAILRAYS
901 PESSSDSGNE TNSSEMTESS ELATAQKQSE NLSRMFLATH EGYHPLAEEQ TEFPASKTPA
961 GGLPPKSSHA LAARPATDLP PKVVPSKQLL HSDHMEMEPE TMETKSVTDY FSKLHMGSVA
1021 YSCTSKRKSK LADGEGKAPP NGNTTGKKQQ GTKTAEMEEE ASGKFGTVSS RDSQHLSTFN
1081 LERTAFRKDS QRWYVATEGG MAEKSGLEAA TGKTFPRASG LGAREAEGKE EGAPDGETSD
1141 GSGLGQGDRF LTDVTCASSA KDLDNPEDAD SSTCDHPSKL PEADESVARL CDYHLAKRMS
1201 SLQSEGHFSL QSSQGSSVDA GCGTGSSGSA CATPVESPLC PSLGKHLIPD ASGKGVNYIP
1261 SEERAPGLPN HGATFKELHP QTEGMCPRMT VPALHTAINT EPLFGTLRDG CHRLPKIKET
1321 TVLocalizationUniProt · AlphaFold · HPA
Whether an antibody against FRMPD4 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)
- 0.56
- Highest tissue expression
- 9.6 nTPM
Expression across tissuesHPA
Tissue
- parathyroid gland: 9.6 nTPM
- cerebral cortex: 8.6 nTPM
- basal ganglia: 4.2 nTPM
- retina: 3.9 nTPM
- hippocampal formation: 2.7 nTPM
- amygdala: 2.4 nTPM
Single-cell type
- retinal horizontal cells: 2,997 nCPM
- brain inhibitory neurons: 1,038 nCPM
- brain excitatory neurons: 702 nCPM
- ependymal cells: 333 nCPM
- other brain neurons: 332 nCPM
- choroid plexus epithelial cells: 306 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
- cerebral cortex: 35 nTPM
- basal ganglia: 24 nTPM
- white matter: 22 nTPM
- thalamus: 21 nTPM
- hippocampal formation: 20 nTPM
- midbrain: 15 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about FRMPD4.
Disease | AllUniProt
Conditions FRMPD4 is implicated in, by any mechanism.
- Intellectual developmental disorder, X-linked 104 (XLID104) MIM:300983
Disease | GeneticClinVar
20 pathogenic / likely-pathogenic of 570 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Intellectual disability, X-linked 104
- Thyroid cancer, nonmedullary, 1
- Neurodevelopmental delay
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)
- 0.08
- gnomAD pLI
- 1
- gnomAD missense Z
- 1.95
- DepMap mean gene effect
- 0.04
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Molecular functions
- 5-bisphosphate binding
- phosphatidylinositol-4
Cellular components
Protein domainsUniProt · Pfam · InterPro
- FERM domain
- WW domain
- PDZ domain
- PH-like domain superfamily
- FERM/acyl-CoA-binding protein superfamily
- FERM central domain
- Band 4.1 domain
- Ubiquitin-like domain superfamily
- FERM superfamily, second domain
- PDZ superfamily
- FERM and PDZ domain-containing protein 1/3/4, FERM domain C-lobe
- FAK1-like, FERM domain C-lobe
- FERM central domain
- PDZ domain
- FAK1/PYK2, FERM domain C-lobe
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of FRMPD4 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 FRMPD4 as an antibody target. Whether an autoantibody or antibody against FRMPD4 could matter depends on whether native FRMPD4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
FRMPD4 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 FRMPD4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
Loading the interactive Seroatlas protein explorer...