Seroatlas · Human Serome Atlas

NOTCH4

Neurogenic locus notch homolog protein 4

Also known as: INT3, NOTC4_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q99466
Gene
NOTCH4
Ensembl
ENSG00000204301
Chromosome
6
Canonical length
2003 aa
Protein class
Human disease related genes, Predicted membrane proteins

OverviewNCBI Gene

This gene encodes a member of the NOTCH family of proteins. Members of this Type I transmembrane protein family share structural characteristics including an extracellular domain consisting of multiple epidermal growth factor-like (EGF) repeats, and an intracellular domain consisting of multiple different domain types. Notch signaling is an evolutionarily conserved intercellular signaling pathway that regulates interactions between physically adjacent cells through binding of Notch family receptors to their cognate ligands. The encoded preproprotein is proteolytically processed in the trans-Golgi network to generate two polypeptide chains that heterodimerize to form the mature cell-surface receptor. This receptor may play a role in vascular, renal and hepatic development. Mutations in this gene may be associated with schizophrenia. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Jan 2016]

Canonical amino-acid sequenceUniProt

2003 residues, UniProt reviewed canonical sequence.

>Q99466|NOTCH4
     1  MQPPSLLLLL LLLLLLCVSV VRPRGLLCGS FPEPCANGGT CLSLSLGQGT CQCAPGFLGE
    61  TCQFPDPCQN AQLCQNGGSC QALLPAPLGL PSSPSPLTPS FLCTCLPGFT GERCQAKLED
   121  PCPPSFCSKR GRCHIQASGR PQCSCMPGWT GEQCQLRDFC SANPCVNGGV CLATYPQIQC
   181  HCPPGFEGHA CERDVNECFQ DPGPCPKGTS CHNTLGSFQC LCPVGQEGPR CELRAGPCPP
   241  RGCSNGGTCQ LMPEKDSTFH LCLCPPGFIG PDCEVNPDNC VSHQCQNGGT CQDGLDTYTC
   301  LCPETWTGWD CSEDVDECET QGPPHCRNGG TCQNSAGSFH CVCVSGWGGT SCEENLDDCI
   361  AATCAPGSTC IDRVGSFSCL CPPGRTGLLC HLEDMCLSQP CHGDAQCSTN PLTGSTLCLC
   421  QPGYSGPTCH QDLDECLMAQ QGPSPCEHGG SCLNTPGSFN CLCPPGYTGS RCEADHNECL
   481  SQPCHPGSTC LDLLATFHCL CPPGLEGQLC EVETNECASA PCLNHADCHD LLNGFQCICL
   541  PGFSGTRCEE DIDECRSSPC ANGGQCQDQP GAFHCKCLPG FEGPRCQTEV DECLSDPCPV
   601  GASCLDLPGA FFCLCPSGFT GQLCEVPLCA PNLCQPKQIC KDQKDKANCL CPDGSPGCAP
   661  PEDNCTCHHG HCQRSSCVCD VGWTGPECEA ELGGCISAPC AHGGTCYPQP SGYNCTCPTG
   721  YTGPTCSEEM TACHSGPCLN GGSCNPSPGG YYCTCPPSHT GPQCQTSTDY CVSAPCFNGG
   781  TCVNRPGTFS CLCAMGFQGP RCEGKLRPSC ADSPCRNRAT CQDSPQGPRC LCPTGYTGGS
   841  CQTLMDLCAQ KPCPRNSHCL QTGPSFHCLC LQGWTGPLCN LPLSSCQKAA LSQGIDVSSL
   901  CHNGGLCVDS GPSYFCHCPP GFQGSLCQDH VNPCESRPCQ NGATCMAQPS GYLCQCAPGY
   961  DGQNCSKELD ACQSQPCHNH GTCTPKPGGF HCACPPGFVG LRCEGDVDEC LDQPCHPTGT
  1021  AACHSLANAF YCQCLPGHTG QWCEVEIDPC HSQPCFHGGT CEATAGSPLG FICHCPKGFE
  1081  GPTCSHRAPS CGFHHCHHGG LCLPSPKPGF PPRCACLSGY GGPDCLTPPA PKGCGPPSPC
  1141  LYNGSCSETT GLGGPGFRCS CPHSSPGPRC QKPGAKGCEG RSGDGACDAG CSGPGGNWDG
  1201  GDCSLGVPDP WKGCPSHSRC WLLFRDGQCH PQCDSEECLF DGYDCETPPA CTPAYDQYCH
  1261  DHFHNGHCEK GCNTAECGWD GGDCRPEDGD PEWGPSLALL VVLSPPALDQ QLFALARVLS
  1321  LTLRVGLWVR KDRDGRDMVY PYPGARAEEK LGGTRDPTYQ ERAAPQTQPL GKETDSLSAG
  1381  FVVVMGVDLS RCGPDHPASR CPWDPGLLLR FLAAMAAVGA LEPLLPGPLL AVHPHAGTAP
  1441  PANQLPWPVL CSPVAGVILL ALGALLVLQL IRRRRREHGA LWLPPGFTRR PRTQSAPHRR
  1501  RPPLGEDSIG LKALKPKAEV DEDGVVMCSG PEEGEEVGQA EETGPPSTCQ LWSLSGGCGA
  1561  LPQAAMLTPP QESEMEAPDL DTRGPDGVTP LMSAVCCGEV QSGTFQGAWL GCPEPWEPLL
  1621  DGGACPQAHT VGTGETPLHL AARFSRPTAA RRLLEAGANP NQPDRAGRTP LHAAVAADAR
  1681  EVCQLLLRSR QTAVDARTED GTTPLMLAAR LAVEDLVEEL IAAQADVGAR DKWGKTALHW
  1741  AAAVNNARAA RSLLQAGADK DAQDNREQTP LFLAAREGAV EVAQLLLGLG AARELRDQAG
  1801  LAPADVAHQR NHWDLLTLLE GAGPPEARHK ATPGREAGPF PRARTVSVSV PPHGGGALPR
  1861  CRTLSAGAGP RGGGACLQAR TWSVDLAARG GGAYSHCRSL SGVGAGGGPT PRGRRFSAGM
  1921  RGPRPNPAIM RGRYGVAAGR GGRVSTDDWP CDWVALGACG SASNIPIPPP CLTPSPERGS
  1981  PQLDCGPPAL QEMPINQGGE GKK

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against NOTCH4 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)
0.41
Highest tissue expression
22 nTPM

Expression across tissuesHPA

Tissue

  • adipose tissue: 22 nTPM
  • breast: 19 nTPM
  • lung: 17 nTPM
  • heart muscle: 15 nTPM
  • kidney: 12 nTPM
  • thyroid gland: 9.1 nTPM

Single-cell type

  • vascular endothelial cells: 18 nCPM
  • papillary tip epithelial cells: 5.1 nCPM
  • epicardial cells: 2.3 nCPM
  • hematopoietic stem cells: 1.5 nCPM
  • loop of henle epithelial cells: 1.4 nCPM
  • bergmann glia: 1.3 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

  • midbrain: 0.3 nTPM
  • cerebral cortex: 0.2 nTPM
  • hypothalamus: 0.2 nTPM
  • medulla oblongata: 0.2 nTPM
  • pons: 0.2 nTPM
  • white matter: 0.2 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)
0.74
gnomAD pLI
0
gnomAD missense Z
2.14
DepMap mean gene effect
-0.08
DepMap dependency class
selective

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).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of NOTCH4 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 NOTCH4 as an antibody target. Whether an autoantibody or antibody against NOTCH4 could matter depends on whether native NOTCH4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

NOTCH4 is annotated at the cell surface, where native NOTCH4 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 NOTCH4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/NOTCH4. 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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