Seroatlas · Human Serome Atlas

DLL4

Delta-like protein 4

Also known as: DLL4_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q9NR61
Gene
DLL4
Ensembl
ENSG00000128917
Chromosome
15
Canonical length
685 aa
Protein class
Disease related genes, Human disease related genes, Predicted membrane proteins

OverviewNCBI Gene

This gene is a homolog of the Drosophila delta gene. The delta gene family encodes Notch ligands that are characterized by a DSL domain, EGF repeats, and a transmembrane domain. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

685 residues, UniProt reviewed canonical sequence.

>Q9NR61|DLL4
     1  MAAASRSASG WALLLLVALW QQRAAGSGVF QLQLQEFINE RGVLASGRPC EPGCRTFFRV
    61  CLKHFQAVVS PGPCTFGTVS TPVLGTNSFA VRDDSSGGGR NPLQLPFNFT WPGTFSLIIE
   121  AWHAPGDDLR PEALPPDALI SKIAIQGSLA VGQNWLLDEQ TSTLTRLRYS YRVICSDNYY
   181  GDNCSRLCKK RNDHFGHYVC QPDGNLSCLP GWTGEYCQQP ICLSGCHEQN GYCSKPAECL
   241  CRPGWQGRLC NECIPHNGCR HGTCSTPWQC TCDEGWGGLF CDQDLNYCTH HSPCKNGATC
   301  SNSGQRSYTC TCRPGYTGVD CELELSECDS NPCRNGGSCK DQEDGYHCLC PPGYYGLHCE
   361  HSTLSCADSP CFNGGSCRER NQGANYACEC PPNFTGSNCE KKVDRCTSNP CANGGQCLNR
   421  GPSRMCRCRP GFTGTYCELH VSDCARNPCA HGGTCHDLEN GLMCTCPAGF SGRRCEVRTS
   481  IDACASSPCF NRATCYTDLS TDTFVCNCPY GFVGSRCEFP VGLPPSFPWV AVSLGVGLAV
   541  LLVLLGMVAV AVRQLRLRRP DDGSREAMNN LSDFQKDNLI PAAQLKNTNQ KKELEVDCGL
   601  DKSNCGKQQN HTLDYNLAPG PLGRGTMPGK FPHSDKSLGE KAPLRLHSEK PECRISAICS
   661  PRDSMYQSVC LISEERNECV IATEV

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against DLL4 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)
0.43
Highest tissue expression
25 nTPM

Expression across tissuesHPA

Tissue

  • adipose tissue: 25 nTPM
  • heart muscle: 23 nTPM
  • lung: 21 nTPM
  • breast: 21 nTPM
  • placenta: 19 nTPM
  • thyroid gland: 15 nTPM

Single-cell type

  • goblet cells: 95 nCPM
  • tuft cells: 69 nCPM
  • vascular endothelial cells: 69 nCPM
  • colonocytes: 56 nCPM
  • lymphatic endothelial cells: 56 nCPM
  • neuroendocrine cells: 39 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

  • thalamus: 12 nTPM
  • pons: 10 nTPM
  • medulla oblongata: 9 nTPM
  • amygdala: 8.8 nTPM
  • cerebral cortex: 8.7 nTPM
  • cerebellum: 7.9 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about DLL4.

Disease | AllUniProt

Conditions DLL4 is implicated in, by any mechanism.

Disease | GeneticClinVar

29 pathogenic / likely-pathogenic of 342 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)
0.19
gnomAD pLI
1
gnomAD missense Z
2.71
DepMap mean gene effect
-0.05
DepMap dependency class
none

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 DLL4 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 DLL4 as an antibody target. Whether an autoantibody or antibody against DLL4 could matter depends on whether native DLL4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

DLL4 is annotated at the cell surface, where native DLL4 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 DLL4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/DLL4. 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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