7-128855289-G-A
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2
The NM_001458.5(FLNC):c.7226G>A(p.Arg2409His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000341 in 1,612,656 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R2409C) has been classified as Uncertain significance.
Frequency
Consequence
NM_001458.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
FLNC | NM_001458.5 | c.7226G>A | p.Arg2409His | missense_variant | 43/48 | ENST00000325888.13 | |
FLNC-AS1 | NR_149055.1 | n.103-1892C>T | intron_variant, non_coding_transcript_variant | ||||
FLNC | NM_001127487.2 | c.7127G>A | p.Arg2376His | missense_variant | 42/47 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
FLNC | ENST00000325888.13 | c.7226G>A | p.Arg2409His | missense_variant | 43/48 | 1 | NM_001458.5 | P3 | |
FLNC | ENST00000346177.6 | c.7127G>A | p.Arg2376His | missense_variant | 42/47 | 1 | A1 | ||
FLNC-AS1 | ENST00000469965.1 | n.103-1892C>T | intron_variant, non_coding_transcript_variant | 4 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152194Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000200 AC: 5AN: 249442Hom.: 0 AF XY: 0.0000148 AC XY: 2AN XY: 135340
GnomAD4 exome AF: 0.0000370 AC: 54AN: 1460462Hom.: 0 Cov.: 31 AF XY: 0.0000372 AC XY: 27AN XY: 726692
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152194Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74344
ClinVar
Submissions by phenotype
Hypertrophic cardiomyopathy 26 Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Victorian Clinical Genetics Services, Murdoch Childrens Research Institute | May 06, 2021 | Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as VUS-3B. Following criteria are met: 0103 - Loss of function (LoF) and gain of function (GoF) are known mechanisms of disease in this gene. Null variants enriched in dilated cardiomyopathy and distal myopathy (MIM#614065) while missense variants, mainly in the ROD2 domain, are enriched in hypertrophic cardiomyopathy, familial (MIM#617047), restrictive cardiomyopathy, familial (MIM#617047) and myofibrillar myopathy (MIM#609524) (PMID: 32112656). (I) 0107 - This gene is associated with autosomal dominant disease. (I) 0200 - Variant is predicted to result in a missense amino acid change from arginine to histidine. (I) 0251 - This variant is heterozygous. (I) 0302 - Variant is present in gnomAD <0.001 for a dominant condition (v2: 5 heterozygotes, 0 homozygotes). (SP) 0309 - An alternative amino acid change at the same position has been observed in gnomAD (v2: 2 heterozygotes, 0 homozygotes). (I) 0502 - Missense variant with conflicting in silico predictions and uninformative conservation. (I) 0600 - Variant is located in the annotated filamin repeat (Uniprot, NCBI) (I) 0710 - Another missense variant comparable to the one identified in this case has inconclusive previous evidence for pathogenicity. p.(Arg2409Cys) has been classified as a VUS by a diagnostic laboratory in ClinVar. (I) 0809 - Previous evidence of pathogenicity for this variant is inconclusive. It has been classified as a VUS by a diagnostic laboratory in ClinVar. (I) 0905 - No published segregation evidence has been identified for this variant. (I) 1007 - No published functional evidence has been identified for this variant. (I) 1208 - Inheritance information for this variant is not currently available in this individual. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign - |
Uncertain significance, criteria provided, single submitter | clinical testing | Molecular Genetics, Royal Melbourne Hospital | Apr 11, 2023 | This sequence change in FLNC is predicted to replace arginine with histidine at codon 2409, p.(Arg2409His). The arginine residue is highly conserved (99/99 vertebrates, UCSC), and is located in the ROD 2 Ig-like domain 22 (PMID: 32112656). There is a small physicochemical difference between arginine and histidine. The highest population minor allele frequency in the population database gnomAD v2.1 is 0.006% (2/34,520 alleles) in the Latino/Admixed American population. To our knowledge, this variant has not been reported in the relevant scientific literature. It has been identified in an individual with hypertrophic cardiomyopathy (Shariant) and reported as a variant of uncertain significance and likely benign (ClinVar ID: 539333). Computational evidence predicts a deleterious effect for the missense substitution (REVEL = 0.659). Based on the classification scheme RMH Modified ACMG/AMP Guidelines v1.6.1, this variant is classified as a VARIANT OF UNCERTAIN SIGNIFICANCE. Following criteria are met: PP3. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Revvity Omics, Revvity | Jan 12, 2021 | - - |
Cardiovascular phenotype Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 13, 2023 | The p.R2409H variant (also known as c.7226G>A), located in coding exon 43 of the FLNC gene, results from a G to A substitution at nucleotide position 7226. The arginine at codon 2409 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration 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
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Jun 20, 2023 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at