Is USH2A p.Pro4378fs (c.13131del) pathogenic?

USH2A p.Pro4378fs (c.13131del) is classified Pathogenic/Likely pathogenic in USH2A (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-05-24). No gnomAD frequency available for this variant; Associated with retinitis pigmentosa 39.

What condition is associated with USH2A p.Pro4378fs (c.13131del)?

USH2A p.Pro4378fs (c.13131del) is associated with retinitis pigmentosa 39 (ClinVar).

How common is USH2A p.Pro4378fs (c.13131del) in the general population?

USH2A p.Pro4378fs (c.13131del) is no gnomAD frequency available for this variant (gnomAD).

How is Retinitis pigmentosa inherited?

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

USH2A p.Pro4378fs

c.13131del · rs2102665766 · VCV1070462

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

retinitis pigmentosa 39

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 63 of 72
Splicing
SpliceAI	—	not assessed · substitutions only
Constraint at this position
Conservation	phyloP 5	GERP 1.8, phastCons 1

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.Pro4378fs
Coding: c.13131del
MANE Select: NM_206933
dbSNP: rs2102665766
Type: Deletion
Location: chr1:215674780 (GRCh38)
Gene constraint: LOEUF 0.855 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Residue 4378: the fibronectin type-iii 29 domain

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

Disease context

retinitis pigmentosa 39 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Retinitis pigmentosa (Orphanet):

Inheritance: Autosomal dominant, Autosomal recessive, Mitochondrial inheritance
Onset: Adolescent, Adult, Childhood
Prevalence: 1-5 / 10 000 (Europe)

Similar variants

USH2A p.Pro4378Leu Conflicting classifications of pathogenicity ★ same residue
USH2A c.11389+1del Pathogenic/Likely pathogenic ★★ same condition
USH2A c.11549del Pathogenic/Likely pathogenic ★★ same condition
USH2A c.4251+1del Pathogenic/Likely pathogenic ★★ same condition
USH2A c.4758+1del Pathogenic/Likely pathogenic ★★ same condition
USH2A c.486-4_486-2del Likely pathogenic ★★ same condition
USH2A c.7594+2del Likely pathogenic ★★ same condition
USH2A c.9055+1del 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-pro4378fs (accessed [today's date]).

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