Is ACTG2 p.Pro39Leu (c.116C>T) pathogenic?

ACTG2 p.Pro39Leu (c.116C>T) is classified Pathogenic in ACTG2 (ClinVar, Single submitter, 1 submitter; last evaluated 2019-10-04). AlphaMissense: likely pathogenic (0.9869); Absent from gnomAD v4.1; Associated with visceral myopathy 1.

What condition is associated with ACTG2 p.Pro39Leu (c.116C>T)?

ACTG2 p.Pro39Leu (c.116C>T) is associated with visceral myopathy 1 (ClinVar).

How common is ACTG2 p.Pro39Leu (c.116C>T) in the general population?

ACTG2 p.Pro39Leu (c.116C>T) is absent from gnomAD v4.1 (gnomAD).

How is Familial visceral myopathy inherited?

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

What do computational predictors say about ACTG2 p.Pro39Leu (c.116C>T)?

AlphaMissense predicts likely pathogenic (score 0.9869) — an in-silico prediction, not a clinical call.

ACTG2 p.Pro39Leu

c.116C>T · rs1573461481 · VCV694268

Pathogenic Single submitter

Classification

Pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9869 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

visceral myopathy 1

Computational evidence

Protein change
AlphaMissense	0.9869	likely pathogenic ✓ concordant with ClinVar
REVEL	0.945	strongly pathogenic-leaning
SaProt	LLR -16.20	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.6	GERP 2.9, phastCons 1
Regional constraint	o/e 0.48	unconstrained · MANE · 18 kb · p 3.5e-30 · 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

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: ACTG2
Protein: p.Pro39Leu
Coding: c.116C>T
MANE Select: NM_001615
dbSNP: rs1573461481
Type: single nucleotide variant
Location: chr2:73901427 (GRCh38)
Gene constraint: LOEUF 0.626 · pLI 0.28 (gnomAD)
Structure: AlphaFold pLDDT 95.46 · 4 PDB
Residue 39: a β-strand

Full ACTG2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

visceral myopathy 1 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Familial visceral myopathy (Orphanet):

Inheritance: Autosomal dominant
Onset: All ages

Similar variants

ACTG2 p.Pro39Arg Likely pathogenic ★ same residue
ACTG2 p.Ala205Thr Pathogenic ★★ same condition
ACTG2 p.Arg148Cys Likely pathogenic ★★ same condition
ACTG2 p.Arg178Cys Pathogenic ★★ same condition
ACTG2 p.Arg178His Pathogenic ★★ same condition
ACTG2 p.Arg178Leu Pathogenic ★★ same condition
ACTG2 p.Arg211Gln Pathogenic/Likely pathogenic ★★ same condition
ACTG2 p.Arg257Cys 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/actg2-p-pro39leu (accessed [today's date]).

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