USH2A p.Pro446=
c.1338A>G · rs368392889 · VCV1159297
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00223%, eas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | all four deltas below 0.2 · T>A here scores Δ0.20 · evaluated, not missing |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -2.7 | GERP -3.5 |
| Overall | ||
| CADD | 6.729 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00223%
East Asian · 1/44,784 alleles
Filtering AF
2.8e-05%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 1.1e-05%
Overall
0.000186%
3/1,613,430 alleles · very rare
exomes 3/1,461,174 · genomes 0/152,256 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.00223% | 44,784 |
| European (non-Finnish) | 0.00017% | 589,803 |
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
- USH2A
- Protein
- p.Pro446=
- Coding
- c.1338A>G
- MANE Select
- NM_206933
- dbSNP
- rs368392889
- Type
- single nucleotide variant
- Location
- chr1:216323686 (GRCh38)
- Gene constraint
- LOEUF 0.855 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
- Residue 446
- the laminin n-terminal domain
Similar variants
- USH2A p.Pro446Ser Uncertain significance ★★ same residue
- USH2A c.12295-3T>A Pathogenic ★★★ same type
- USH2A c.8559-2A>G Pathogenic ★★★ same type
- USH2A c.8682-9A>G Pathogenic ★★★ same type
- USH2A p.Ala4740Asp Pathogenic ★★★ ⚠ same type
- USH2A p.Arg3905Cys Pathogenic ★★★ ⚠ same type
- USH2A p.Arg4192Cys Likely pathogenic ★★★ ⚠ same type
- USH2A p.Asn346His Pathogenic ★★★ 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/ush2a-p-pro446 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown