Is TSC2 p.Val767Phe (c.2299G>T) pathogenic?

TSC2 p.Val767Phe (c.2299G>T) is classified Benign in TSC2 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-08-31). AlphaMissense: likely benign (0.2763); Very rare (popmax 8.47e-05%, nfe); Associated with tuberous sclerosis 2.

What condition is associated with TSC2 p.Val767Phe (c.2299G>T)?

TSC2 p.Val767Phe (c.2299G>T) is associated with tuberous sclerosis 2 (ClinVar).

How common is TSC2 p.Val767Phe (c.2299G>T) in the general population?

TSC2 p.Val767Phe (c.2299G>T) is very rare (popmax 8.47e-05%, nfe) (gnomAD).

How is Tuberous sclerosis complex inherited?

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

What do computational predictors say about TSC2 p.Val767Phe (c.2299G>T)?

AlphaMissense predicts likely benign (score 0.2763) — an in-silico prediction, not a clinical call.

TSC2 p.Val767Phe

c.2299G>T · rs745359720 · VCV2756911

Benign Single submitter

Classification

Benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2763 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.47e-05%, nfe)

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

tuberous sclerosis 2

Computational evidence

Protein change
AlphaMissense	0.2763	likely benign
REVEL	0.547	indeterminate
SaProt	LLR -9.36	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 2.3, phastCons 1
Regional constraint	o/e 1.00	unconstrained · MANE · 37 kb · p 0.88 · regional, not allelic
Overall
CADD	27.5	PHRED · no single calibrated threshold — expert panels disagree

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.47e-05% European (non-Finnish) · 1/1,180,028 alleles

Overall 6.84e-05% 1/1,461,280 alleles · very rare

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: TSC2
Protein: p.Val767Phe
Coding: c.2299G>T
MANE Select: NM_000548
dbSNP: rs745359720
Type: single nucleotide variant
Location: chr16:2072927 (GRCh38)
Gene constraint: LOEUF 0.203 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 68.81 · 2 PDB
Residue 767: an α-helix

Full TSC2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

tuberous sclerosis 2 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Tuberous sclerosis complex (Orphanet):

Inheritance: Autosomal dominant
Onset: All ages
Prevalence: 1-9 / 100 000 (Taiwan, Province of China)

Similar variants

TSC2 p.Val767= Benign/Likely benign ★★ same residue
TSC2 c.1257+1G>A Pathogenic ★★ same condition
TSC2 c.1258-2A>G Pathogenic ★★ same condition
TSC2 c.1361+1G>A Pathogenic/Likely pathogenic ★★ same condition
TSC2 c.1361+1G>T Pathogenic/Likely pathogenic ★★ same condition
TSC2 c.1362-1G>A Pathogenic ★★ same condition
TSC2 c.138+2T>C Pathogenic ★★ same condition
TSC2 c.138+5G>A 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/tsc2-p-val767phe (accessed [today's date]).

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