chr7-128854178-G-A
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2
The NM_001458.5(FLNC):c.6689G>A(p.Arg2230His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000497 in 1,609,216 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2230C) has been classified as Uncertain significance.
Frequency
Consequence
NM_001458.5 missense
Scores
Clinical Significance
Conservation
Publications
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ACMG classification
Our verdict: Benign. The variant received -7 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt | 
|---|---|---|---|---|---|---|---|---|
| FLNC | NM_001458.5 | c.6689G>A | p.Arg2230His | missense_variant | Exon 40 of 48 | ENST00000325888.13 | NP_001449.3 | |
| FLNC | NM_001127487.2 | c.6590G>A | p.Arg2197His | missense_variant | Exon 39 of 47 | NP_001120959.1 | ||
| FLNC-AS1 | NR_149055.1 | n.103-781C>T | intron_variant | Intron 1 of 3 | 
Ensembl
Frequencies
GnomAD3 genomes  0.0000986  AC: 15AN: 152054Hom.:  0  Cov.: 33 show subpopulations 
GnomAD2 exomes  AF:  0.0000905  AC: 22AN: 243160 AF XY:  0.0000978   show subpopulations 
GnomAD4 exome  AF:  0.0000446  AC: 65AN: 1457162Hom.:  0  Cov.: 34 AF XY:  0.0000386  AC XY: 28AN XY: 724510 show subpopulations 
Age Distribution
GnomAD4 genome  0.0000986  AC: 15AN: 152054Hom.:  0  Cov.: 33 AF XY:  0.0000808  AC XY: 6AN XY: 74260 show subpopulations 
Age Distribution
ClinVar
Submissions by phenotype
not provided    Uncertain:1Benign:1 
Has not been previously published as pathogenic or benign to our knowledge; Reported in ClinVar but additional evidence is not available (ClinVar Variant ID# 567146; Landrum et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function -
FLNC: PS4:Supporting -
Cardiovascular phenotype    Uncertain:1 
The p.R2230H variant (also known as c.6689G>A), located in coding exon 40 of the FLNC gene, results from a G to A substitution at nucleotide position 6689. The arginine at codon 2230 is replaced by histidine, an amino acid with highly similar properties. This variant was reported in individual(s) with features consistent with hypertrophic or dilated cardiomyopathy (Kojic A et al. Stem Cell Res. 2022 Oct;64:102928; Ambry internal data). This amino acid position is not well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -
Myofibrillar myopathy 5;C3279722:Distal myopathy with posterior leg and anterior hand involvement;C4310749:Hypertrophic cardiomyopathy 26;CN239310:Dilated Cardiomyopathy, Dominant    Benign:1 
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Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at