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 QQLLQEMTASLocalizationUniProt · 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.
- Immunodeficiency 67 (IMD67) MIM:607676
Disease | GeneticClinVar
35 pathogenic / likely-pathogenic of 380 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Immunodeficiency 67
- IRAK4-related disorder
- Invasive pneumococcal disease, recurrent isolated
- Congenital dyserythropoietic anemia
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
- cytokine-mediated signaling pathway
- innate immune response
- interleukin-1-mediated signaling pathway
- interleukin-33-mediated signaling pathway
- intracellular signal transduction
- JNK cascade
- lipopolysaccharide-mediated signaling pathway
- MyD88-dependent toll-like receptor signaling pathway
- neutrophil mediated immunity
- neutrophil migration
- positive regulation of canonical NF-kappaB signal transduction
- positive regulation of smooth muscle cell proliferation
- Toll signaling pathway
- toll-like receptor 4 signaling pathway
- toll-like receptor 9 signaling pathway
- toll-like receptor signaling pathway
Molecular functions
- ATP binding
- interleukin-1 receptor binding
- kinase activity
- magnesium ion binding
- protein kinase binding
- protein serine kinase activity
- protein serine/threonine kinase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Protein kinase domain
- Serine-threonine/tyrosine-protein kinase, catalytic domain
- Protein kinase-like domain superfamily
- Death-like domain superfamily
- Protein tyrosine and serine/threonine kinase
- Interleukin-1 receptor-associated kinase 4
- IRAK4, Death domain
- LRR Receptor-Like Ser/Thr Protein Kinase
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.
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