IRAK2

Chr 3

interleukin 1 receptor associated kinase 2

Also known as: IRAK-2

The interleukin-1 receptor-associated kinase 2 protein binds to the IL-1 type I receptor and triggers intracellular signaling cascades that lead to transcriptional upregulation and mRNA stabilization. Mutations cause immunodeficiency and developmental delay, with inheritance patterns varying by variant type. This gene is not highly constrained against loss-of-function variants.

OMIMResearchSummary from RefSeq, UniProt
GOFmechanismLOEUF 1.25
Clinical SummaryIRAK2
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
54 unique Pathogenic / Likely Pathogenic· 108 VUS of 196 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.25LOEUF
pLI 0.000
Z-score 0.40
OE 0.92 (0.691.25)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-0.06Z-score
OE missense 1.01 (0.931.10)
374 obs / 370.6 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE0.92 (0.691.25)
00.351.4
Missense OE1.01 (0.931.10)
00.61.4
Synonymous OE0.93
01.21.6
LoF obs/exp: 30 / 32.4Missense obs/exp: 374 / 370.6Syn Z: 0.72
DN
0.5967th %ile
GOF
0.75top 25%
LOF
0.4135th %ile

The highest-scoring mechanism for this gene is gain-of-function.

GOFprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

196 submitted variants in ClinVar

Classification Summary

Pathogenic51
Likely Pathogenic3
VUS108
Likely Benign10
Benign1
51
Pathogenic
3
Likely Pathogenic
108
VUS
10
Likely Benign
1
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
51
0
51
Likely Pathogenic
0
0
3
0
3
VUS
0
95
13
0
108
Likely Benign
0
6
2
2
10
Benign
0
1
0
0
1
Total0102692173

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

IRAK2 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
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