Seroatlas · Human Serome Atlas

IRAK4

Interleukin-1 receptor-associated kinase 4

Also known as: IRAK4_HUMAN, NY-REN-64

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

Protein identityUniProt · HPA

UniProt accession
Q9NWZ3
Gene
IRAK4
Ensembl
ENSG00000198001
Chromosome
12
Canonical length
460 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Plasma proteins, Potential drug targets, Predicted intracellular proteins
Subcellular location
Nucleoli,Plasma membrane,Microtubules,Cytosol

OverviewNCBI Gene

This gene encodes a kinase that activates NF-kappaB in both the Toll-like receptor (TLR) and T-cell receptor (TCR) signaling pathways. The protein is essential for most innate immune responses. Mutations in this gene result in IRAK4 deficiency and recurrent invasive pneumococcal disease. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]

Canonical amino-acid sequenceUniProt

460 residues, UniProt reviewed canonical sequence.

>Q9NWZ3|IRAK4
     1  MNKPITPSTY VRCLNVGLIR KLSDFIDPQE GWKKLAVAIK KPSGDDRYNQ FHIRRFEALL
    61  QTGKSPTSEL LFDWGTTNCT VGDLVDLLIQ NEFFAPASLL LPDAVPKTAN TLPSKEAITV
   121  QQKQMPFCDK DRTLMTPVQN LEQSYMPPDS SSPENKSLEV SDTRFHSFSF YELKNVTNNF
   181  DERPISVGGN KMGEGGFGVV YKGYVNNTTV AVKKLAAMVD ITTEELKQQF DQEIKVMAKC
   241  QHENLVELLG FSSDGDDLCL VYVYMPNGSL LDRLSCLDGT PPLSWHMRCK IAQGAANGIN
   301  FLHENHHIHR DIKSANILLD EAFTAKISDF GLARASEKFA QTVMTSRIVG TTAYMAPEAL
   361  RGEITPKSDI YSFGVVLLEI ITGLPAVDEH REPQLLLDIK EEIEDEEKTI EDYIDKKMND
   421  ADSTSVEAMY SVASQCLHEK KNKRPDIKKV QQLLQEMTAS

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against IRAK4 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)
0.31
Highest tissue expression
18 nTPM

Expression across tissuesHPA

Tissue

  • spleen: 18 nTPM
  • pancreas: 14 nTPM
  • small intestine: 11 nTPM
  • esophagus: 10 nTPM
  • thymus: 9.6 nTPM
  • stomach: 9.5 nTPM

Single-cell type

  • neutrophils: 174 nCPM
  • esophageal apical cells: 160 nCPM
  • neutrophil progenitors: 80 nCPM
  • nk-cells: 70 nCPM
  • rod photoreceptor cells: 68 nCPM
  • microglia: 64 nCPM

Immune cell

  • basophil: 16 nTPM
  • eosinophil: 6.8 nTPM
  • neutrophil: 6.5 nTPM
  • NK-cell: 5.6 nTPM
  • T-reg: 4.5 nTPM
  • gdT-cell: 4.4 nTPM

Brain region

  • white matter: 3.2 nTPM
  • choroid plexus: 2.8 nTPM
  • spinal cord: 2.6 nTPM
  • medulla oblongata: 2.4 nTPM
  • midbrain: 2.1 nTPM
  • pons: 2 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about IRAK4.

Disease | AllUniProt

Conditions IRAK4 is implicated in, by any mechanism.

Disease | GeneticClinVar

35 pathogenic / likely-pathogenic of 380 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)
1.05
gnomAD pLI
0
gnomAD missense Z
0.22
DepMap mean gene effect
-0.02
DepMap dependency class
selective

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

InteractionsUniProt · HPA

Protein binding partners of IRAK4 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 IRAK4 as an antibody target. Whether an autoantibody or antibody against IRAK4 could matter depends on whether native IRAK4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

IRAK4 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 IRAK4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/IRAK4. 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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