IRF3 p.Arg7=
c.21G>T · VCV3339668
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.0011%, sas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal. | ||
| Splicing | ||
| SpliceAI | Δ0.23 | acceptor gain · deltas |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -0.4 | phastCons 0.071 |
| Overall | ||
| CADD | 13.08 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0011%
South Asian · 1/91,054 alleles
Filtering AF
7.9e-05%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 5.4e-05%
Overall
0.000342%
5/1,461,070 alleles · very rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0011% | 91,054 |
| European (non-Finnish) | 0.000339% | 294,937 |
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- IRF3
- Protein
- p.Arg7=
- Coding
- c.21G>T
- MANE Select
- NM_001571
- Type
- single nucleotide variant
- Location
- chr19:49664818 (GRCh38)
- Gene constraint
- LOEUF 0.949 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 81.58 · 18 PDB
- Residue 7
- a DNA-binding region; an α-helix
Similar variants
- IRF3 p.Arg213Cys Uncertain significance ★★ ⚠ same type
- IRF3 p.Arg96Trp Uncertain significance ★★ ⚠ same type
- IRF3 p.Asn28Lys Uncertain significance ★★ ⚠ same type
- IRF3 p.Asp45Asn Uncertain significance ★★ ⚠ same type
- IRF3 p.Gln15Arg Uncertain significance ★★ ⚠ same type
- IRF3 p.Leu344Phe Uncertain significance ★★ ⚠ same type
- IRF3 p.Ser97Arg Uncertain significance ★★ ⚠ same type
- IRF3 p.Val319Met Uncertain significance ★★ same type
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/irf3-p-arg7 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown