Is MYO7A p.Arg761Ser (c.2283G>T) pathogenic?

MYO7A p.Arg761Ser (c.2283G>T) is classified Uncertain significance in MYO7A (ClinVar, Single submitter, 1 submitter; last evaluated 2024-12-18). AlphaMissense: likely pathogenic (0.994); Absent from gnomAD v4.1; Associated with Usher syndrome type 1.

What condition is associated with MYO7A p.Arg761Ser (c.2283G>T)?

MYO7A p.Arg761Ser (c.2283G>T) is associated with Usher syndrome type 1 (ClinVar).

How common is MYO7A p.Arg761Ser (c.2283G>T) in the general population?

MYO7A p.Arg761Ser (c.2283G>T) is absent from gnomAD v4.1 (gnomAD).

How is Usher syndrome inherited?

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

What do computational predictors say about MYO7A p.Arg761Ser (c.2283G>T)?

AlphaMissense predicts likely pathogenic (score 0.994) — an in-silico prediction, not a clinical call.

MYO7A p.Arg761Ser

c.2283G>T · VCV3391114

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.994 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Usher syndrome type 1

Computational evidence

Protein change
AlphaMissense	0.994	likely pathogenic · top 10% in MYO7A
REVEL	0.663	pathogenic-leaning
SaProt	LLR -13.71	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	Δ0.30	acceptor loss at this position · masked 0 · deltas
Pangolin	Δ0.40	loss · gain 0.01 · agrees with SpliceAI · independent
Constraint at this position
Conservation	phyloP 4.5	GERP 0.54, phastCons 1
Regional constraint	o/e 0.95	unconstrained · MANE · 84 kb · p 0.0065 · regional, not allelic
Overall
CADD	24.1	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: MYO7A
Protein: p.Arg761Ser
Coding: c.2283G>T
MANE Select: NM_000260
Type: single nucleotide variant
Location: chr11:77179045 (GRCh38)
Gene constraint: LOEUF 0.995 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 77.73 · 1 PDB
Residue 761: the iq 1 domain

Full MYO7A gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Usher syndrome type 1 — 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

MYO7A p.Arg761= Conflicting classifications of pathogenicity ★ same residue
MYO7A p.Arg761fs Likely pathogenic ★ same residue
MYO7A p.Ala1288Pro Likely pathogenic ★★★ same condition
MYO7A p.Arg1168Gln Pathogenic ★★★ ⚠ same condition
MYO7A p.Arg1873Gln Pathogenic ★★★ ⚠ same condition
MYO7A p.Arg395Cys Likely pathogenic ★★★ ⚠ same condition
MYO7A p.Arg668Cys Pathogenic ★★★ same condition
MYO7A p.Arg853His 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/myo7a-p-arg761ser (accessed [today's date]).

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