ERBB3 p.Arg1127=
c.3381C>T · VCV4809951
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.0072%, nfe)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -2.1 | GERP -3.7 |
| Overall | ||
| CADD | 0.899 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0072%
European (non-Finnish) · 85/1,180,004 alleles
Filtering AF
0.00596%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00549%
Overall
0.00539%
87/1,613,964 alleles · very rare
exomes 82/1,461,888 · genomes 5/152,076 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| European (non-Finnish)grpmax | 0.0072% | 13,882 |
| East Asian | 0.00446% | 22,440 |
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
- ERBB3
- Protein
- p.Arg1127=
- Coding
- c.3381C>T
- MANE Select
- NM_001982
- Type
- single nucleotide variant
- Location
- chr12:56101240 (GRCh38)
- Gene constraint
- LOEUF 0.695 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 72.90 · 23 PDB
- Residue 1127
- a UniProt-annotated variant site (in); the 'disordered' region
Similar variants
- ERBB3 p.Arg1127His Likely benign ★★ same residue
- ERBB3 p.Ile703Leu Uncertain significance ★★ ⚠ same type
- ERBB3 p.Lys747Asn Uncertain significance ★★ ⚠ same type
- ERBB3 p.Pro1142Leu Uncertain significance ★★ ⚠ same type
- ERBB3 p.Pro238Leu Uncertain significance ★★ ⚠ same type
- ERBB3 p.Trp373Arg Uncertain significance ★★ ⚠ same type
- ERBB3 c.1109+202A>G Likely benign ★★ same type
- ERBB3 c.1109+207G>A Benign ★★ 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/erbb3-p-arg1127 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown