Is USH2A p.Asp233fs (c.698del) pathogenic?

USH2A p.Asp233fs (c.698del) is classified Pathogenic/Likely pathogenic in USH2A (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-07-29). Absent from gnomAD; Associated with Usher syndrome.

What condition is associated with USH2A p.Asp233fs (c.698del)?

USH2A p.Asp233fs (c.698del) is associated with Usher syndrome (ClinVar).

How common is USH2A p.Asp233fs (c.698del) in the general population?

USH2A p.Asp233fs (c.698del) is absent from gnomAD (gnomAD).

How is Usher syndrome inherited?

Typically Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

USH2A p.Asp233fs

c.698del · rs2527531520 · VCV2501023

Pathogenic/Likely pathogenic Multiple submitters

Classification

Pathogenic/Likely pathogenic

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

Consequence

frameshift

predicted LoF

gnomAD v4.1

Not reported

no gnomAD frequency available for this variant

Conditions

Usher syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	frameshift	predicted loss-of-function
NMD	predicted	premature termination codon in exon 4 of 72
Splicing
SpliceAI	—	not assessed · substitutions only
Constraint at this position
Conservation	phyloP 0.95	GERP -3.3

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

dbSNP / gnomAD

No gnomAD frequency available for this variant. This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: USH2A
Protein: p.Asp233fs
Coding: c.698del
MANE Select: NM_206933
dbSNP: rs2527531520
Type: Deletion
Location: chr1:216365039 (GRCh38)
Gene constraint: LOEUF 0.855 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)

Full USH2A gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Usher syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Usher syndrome (Orphanet):

Inheritance: Autosomal recessive
Onset: Childhood, Infancy, Neonatal
Prevalence: 1-9 / 100 000 (Worldwide)

Similar variants

USH2A c.12295-?_14133+?del Likely pathogenic ★★★ same condition
USH2A c.4251+1del Pathogenic/Likely pathogenic ★★ same condition
USH2A p.Arg2509fs Pathogenic ★★ same condition
USH2A p.Cys3180fs Pathogenic ★★ same condition
USH2A p.Gln1063fs Pathogenic ★★ same condition
USH2A p.Gln299fs Pathogenic/Likely pathogenic ★★ same condition
USH2A p.Gln4371fs Pathogenic/Likely pathogenic ★★ same condition
USH2A p.Glu2054fs Pathogenic/Likely pathogenic ★★ same condition

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-asp233fs (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown