Is FLNC p.Val809= (c.2427G>T) pathogenic?

FLNC p.Val809= (c.2427G>T) is classified Likely benign in FLNC (ClinVar, Single submitter, 1 submitter; last evaluated 2025-11-13). Ultra-rare (popmax 0.0164%, mid); Associated with hypertrophic cardiomyopathy 26.

What condition is associated with FLNC p.Val809= (c.2427G>T)?

FLNC p.Val809= (c.2427G>T) is associated with hypertrophic cardiomyopathy 26, myofibrillar myopathy 5, distal myopathy with posterior leg and anterior hand involvement (ClinVar).

How common is FLNC p.Val809= (c.2427G>T) in the general population?

FLNC p.Val809= (c.2427G>T) is ultra-rare (popmax 0.0164%, mid) (gnomAD).

FLNC p.Val809=

c.2427G>T · rs901910589 · VCV1622339

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

ultra-rare (popmax 0.0164%, mid)

Conditions

hypertrophic cardiomyopathy 26

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 -0.064	phastCons 0.27
Overall
CADD	5.27	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0164% Middle Eastern · 1/6,084 alleles

Filtering AF 0.00175% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00104%

Overall 0.00031% 5/1,613,782 alleles · ultra-rare exomes 3/1,461,564 · genomes 2/152,218 · joint denominator

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0164%	6,084
African / African-American	0.00534%	18,732

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: FLNC
Protein: p.Val809=
Coding: c.2427G>T
MANE Select: NM_001458
dbSNP: rs901910589
Type: single nucleotide variant
Location: chr7:128842831 (GRCh38)
Gene constraint: LOEUF 0.424 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)

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

Disease context

hypertrophic cardiomyopathy 26 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: myofibrillar myopathy 5 distal myopathy with posterior leg and anterior hand involvement

Similar variants

FLNC p.Val809Met Uncertain significance ★★ same residue
FLNC c.1047+1G>T Likely pathogenic ★★ same condition
FLNC c.1048-1G>A Likely pathogenic ★★ same condition
FLNC c.1210+1G>A Likely pathogenic ★★ same condition
FLNC c.1549+2T>G Likely pathogenic ★★ same condition
FLNC c.2007+1G>A Likely pathogenic ★★ same condition
FLNC c.2550+1G>C Likely pathogenic ★★ same condition
FLNC c.2550+2T>C 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/flnc-p-val809 (accessed [today's date]).

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