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MSH3 p.Pro923fs

c.2768del · VCV3904729

Pathogenic Single submitter
Classification
Pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
frameshift
predicted LoF
gnomAD v4.1
Rare
Conditions
1
familial adenomatous polyposis 4

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequenceframeshiftpredicted loss-of-function
NMDpredictedpremature termination codon in exon 20 of 24
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP -1.2GERP -3.9, phastCons 0.001

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

Variant & gene context

Gene
MSH3
Protein
p.Pro923fs
Coding
c.2768del
MANE Select
NM_002439
Type
Deletion
Location
chr5:80813695 (GRCh38)
Gene constraint
LOEUF 1.027 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 79.48 · 25 PDB
Residue 923
a β-strand
Full MSH3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

familial adenomatous polyposis 4 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For MSH3-related polyposis (Orphanet):

Inheritance
Autosomal recessive
Onset
Neonatal

Similar variants

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/msh3-p-pro923fs (accessed [today's date]).

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