Is USH2A p.Ser134fs (c.401_402delinsA) pathogenic?

USH2A p.Ser134fs (c.401402delinsA) is classified Pathogenic/Likely pathogenic in USH2A (ClinVar, Multiple submitters, 4 submitters; last evaluated 2026-03-04). No gnomAD frequency available for this variant; Associated with Usher syndrome type 2A.

What condition is associated with USH2A p.Ser134fs (c.401_402delinsA)?

USH2A p.Ser134fs (c.401_402delinsA) is associated with Usher syndrome type 2A (ClinVar).

How common is USH2A p.Ser134fs (c.401_402delinsA) in the general population?

USH2A p.Ser134fs (c.401_402delinsA) is no gnomAD frequency available for this variant (gnomAD).

USH2A p.Ser134fs

c.401_402delinsA · rs2527653911 · VCV1704650

Pathogenic/Likely pathogenic Multiple submitters

Classification

Pathogenic/Likely pathogenic

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 4 submitters

Consequence

frameshift

predicted LoF

gnomAD v4.1

Not reported

no gnomAD frequency available for this variant

Conditions

Usher syndrome type 2A

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 2 of 72
Splicing
SpliceAI	—	not assessed · substitutions only
Constraint at this position
Conservation	phyloP -0.069	GERP -3.2

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.Ser134fs
Coding: c.401_402delinsA
MANE Select: NM_206933
dbSNP: rs2527653911
Type: Indel
Location: chr1:216421935 (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 type 2A — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

USH2A c.10940-2_10940delinsTATGGCTTT Likely pathogenic ★★ same condition
USH2A p.Cys3173_Gln3174delinsTer Pathogenic/Likely pathogenic ★★ same condition
USH2A p.Gln1851fs Pathogenic/Likely pathogenic ★★ same condition
USH2A p.Glu4445_Ser4449delinsAspLeu Pathogenic/Likely pathogenic ★★ same condition
USH2A p.Thr4347fs Pathogenic ★★ same condition
USH2A p.Thr5022fs Pathogenic/Likely pathogenic ★★ same condition
USH2A p.Tyr2596_Val2600delinsTer Pathogenic/Likely pathogenic ★★ same condition
USH2A p.Tyr507_Ala508delinsTer 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-ser134fs (accessed [today's date]).

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