rs757219498

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_001458.5(FLNC):​c.7484G>A​(p.Arg2495His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,614,078 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

FLNC
NM_001458.5 missense

Scores

12
5
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 9.94
Variant links:
Genes affected
FLNC (HGNC:3756): (filamin C) This gene encodes one of three related filamin genes, specifically gamma filamin. These filamin proteins crosslink actin filaments into orthogonal networks in cortical cytoplasm and participate in the anchoring of membrane proteins for the actin cytoskeleton. Three functional domains exist in filamin: an N-terminal filamentous actin-binding domain, a C-terminal self-association domain, and a membrane glycoprotein-binding domain. Mutations in this gene are a cause of cardiopathy. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2022]
FLNC-AS1 (HGNC:53474): (FLNC antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.779
BS2
High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLNCNM_001458.5 linkc.7484G>A p.Arg2495His missense_variant Exon 45 of 48 ENST00000325888.13 NP_001449.3 Q14315-1Q59H94
FLNCNM_001127487.2 linkc.7385G>A p.Arg2462His missense_variant Exon 44 of 47 NP_001120959.1 Q14315-2Q59H94
FLNC-AS1NR_149055.1 linkn.103-3447C>T intron_variant Intron 1 of 3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLNCENST00000325888.13 linkc.7484G>A p.Arg2495His missense_variant Exon 45 of 48 1 NM_001458.5 ENSP00000327145.8 Q14315-1
FLNCENST00000346177.6 linkc.7385G>A p.Arg2462His missense_variant Exon 44 of 47 1 ENSP00000344002.6 Q14315-2
FLNC-AS1ENST00000469965.1 linkn.103-3447C>T intron_variant Intron 1 of 3 4

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152204
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000200
AC:
5
AN:
249492
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135380
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000410
AC:
6
AN:
1461874
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
727236
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152204
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Myofibrillar myopathy 5;C4310749:Hypertrophic cardiomyopathy 26 Uncertain:1
Dec 10, 2024
Clinical Genomics Laboratory, Washington University in St. Louis
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The FLNC c.7484G>A (p.Arg2495His) variant has been reported in at least one patient with mild hypertrophy (Ader F et al., PMID: 31245841). This variant is only observed on 6/280,878 alleles in the general population (gnomAD v.2.1.1), indicating it is not a common variant. Computational predictors indicate that the variant is damaging, evidence that may correlate with impact to FLNC function. This variant has been reported in the ClinVar database as a germline variant of uncertain significance by three submitters and likely benign by one submitter. Due to limited information, and based on ACMG/AMP guidelines for variant interpretation (Richards S et al., PMID: 25741868), the clinical significance of this variant is uncertain at this time. -

not provided Uncertain:1
Jun 13, 2023
Mayo Clinic Laboratories, Mayo Clinic
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PP3, PS4_supporting -

Cardiovascular phenotype Uncertain:1
May 11, 2023
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.R2495H variant (also known as c.7484G>A), located in coding exon 45 of the FLNC gene, results from a G to A substitution at nucleotide position 7484. The arginine at codon 2495 is replaced by histidine, an amino acid with highly similar properties. This alteration has been reported in a cardiomyopathy cohort (Ader F et al. Clin Genet, 2019 Oct;96:317-329). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. 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
Dec 25, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.29
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.76
D;.
Eigen
Pathogenic
0.77
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Pathogenic
0.35
D
MetaRNN
Pathogenic
0.78
D;D
MetaSVM
Pathogenic
0.80
D
MutationAssessor
Uncertain
2.5
M;.
PrimateAI
Pathogenic
0.82
D
PROVEAN
Uncertain
-3.6
D;D
REVEL
Pathogenic
0.80
Sift
Uncertain
0.0050
D;D
Sift4G
Uncertain
0.0070
D;D
Polyphen
0.90
P;D
Vest4
0.85
MutPred
0.41
Gain of methylation at K2493 (P = 0.0884);.;
MVP
0.91
MPC
1.9
ClinPred
0.99
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.31
gMVP
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs757219498; hg19: chr7-128496898; COSMIC: COSV105215764; API