Is SUFU p.Val77= (c.231G>T) pathogenic?

SUFU p.Val77= (c.231G>T) is classified Likely benign in SUFU (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-07-31). Absent from gnomAD v4.1; Associated with hereditary neoplastic syndrome.

What condition is associated with SUFU p.Val77= (c.231G>T)?

SUFU p.Val77= (c.231G>T) is associated with hereditary neoplastic syndrome, nevoid basal cell carcinoma syndrome, medulloblastoma (ClinVar).

How common is SUFU p.Val77= (c.231G>T) in the general population?

SUFU p.Val77= (c.231G>T) is absent from gnomAD v4.1 (gnomAD).

SUFU p.Val77=

c.231G>T · rs2544845754 · VCV2947701

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

hereditary neoplastic syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 9.6	GERP 2, phastCons 1
Overall
CADD	10.23	PHRED · no single calibrated threshold — expert panels disagree

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: SUFU
Protein: p.Val77=
Coding: c.231G>T
MANE Select: NM_016169
dbSNP: rs2544845754
Type: single nucleotide variant
Location: chr10:102509217 (GRCh38)
Gene constraint: LOEUF 0.214 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 82.95 · 10 PDB
Residue 77: a UniProt-annotated variant site (in)

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

Disease context

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

Also linked: nevoid basal cell carcinoma syndrome medulloblastoma

Similar variants

SUFU p.Val77Ala Uncertain significance ★★ ⚠ same residue
SUFU p.Val77Met Uncertain significance ★★ ⚠ same residue
SUFU c.1022+1G>A Pathogenic ★★ same condition
SUFU c.1023-2A>T Likely pathogenic ★★ same condition
SUFU c.683+1G>A Likely pathogenic ★★ same condition
SUFU c.684-2A>G Likely pathogenic ★★ same condition
SUFU p.Arg146Ter Pathogenic ★★ same condition
SUFU p.Arg299Ter 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/sufu-p-val77 (accessed [today's date]).

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