rs369935650

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001458.5(FLNC):​c.2297G>A​(p.Arg766Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000652 in 1,549,960 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

FLNC
NM_001458.5 missense

Scores

2
3
14

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: 1.90
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.11257103).
BS2
High AC in GnomAd4 at 21 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLNCNM_001458.5 linkc.2297G>A p.Arg766Gln missense_variant Exon 15 of 48 ENST00000325888.13 NP_001449.3 Q14315-1Q59H94
FLNCNM_001127487.2 linkc.2297G>A p.Arg766Gln missense_variant Exon 15 of 47 NP_001120959.1 Q14315-2Q59H94

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLNCENST00000325888.13 linkc.2297G>A p.Arg766Gln missense_variant Exon 15 of 48 1 NM_001458.5 ENSP00000327145.8 Q14315-1
FLNCENST00000346177.6 linkc.2297G>A p.Arg766Gln missense_variant Exon 15 of 47 1 ENSP00000344002.6 Q14315-2
FLNCENST00000388853.3 linkn.413G>A non_coding_transcript_exon_variant Exon 3 of 4 2

Frequencies

GnomAD3 genomes
AF:
0.000138
AC:
21
AN:
152224
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000654
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:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000919
AC:
14
AN:
152338
Hom.:
0
AF XY:
0.0000618
AC XY:
5
AN XY:
80936
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000243
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000876
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000104
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000572
AC:
80
AN:
1397618
Hom.:
0
Cov.:
34
AF XY:
0.0000522
AC XY:
36
AN XY:
689394
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000168
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000505
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000621
Gnomad4 OTH exome
AF:
0.0000518
GnomAD4 genome
AF:
0.000138
AC:
21
AN:
152342
Hom.:
0
Cov.:
33
AF XY:
0.000161
AC XY:
12
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.0000721
Gnomad4 AMR
AF:
0.000653
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000404
Hom.:
0
Bravo
AF:
0.000147
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000128
AC:
1
ExAC
AF:
0.0000326
AC:
3

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:5Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2
Mar 27, 2024
Mayo Clinic Laboratories, Mayo Clinic
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 06, 2019
Revvity Omics, Revvity
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Myofibrillar myopathy 5;C3279722:Distal myopathy with posterior leg and anterior hand involvement;C4310749:Hypertrophic cardiomyopathy 26 Uncertain:1
Aug 12, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Hypertrophic cardiomyopathy 26 Uncertain:1
Feb 02, 2022
Victorian Clinical Genetics Services, Murdoch Childrens Research Institute
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as VUS-3C. Following criteria are met: 0103 - Loss of function and gain of function are known mechanisms of disease in this gene. Loss of function is the established mechanism of disease for variants in dilated cardiomyopathy, hypertrophic cardiomyopathy, restrictive cardiomyopathy (MIM#617047) and myofibrillar myopathy (MIM#609524). In distal myopathy (MIM#614065), NMD-predicted variants cause a loss of function, however missense variants have been shown to result in a toxic gain of function (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 glutamine. (I) 0251 - This variant is heterozygous. (I) 0302 - Variant is present in gnomAD (v3) <0.001 for a dominant condition (21 heterozygotes, 0 homozygotes). (SP) 0309 - An alternative amino acid change at the same position has been observed in gnomAD (v3) (28 heterozygotes, 0 homozygotes). (I) 0503 - Missense variant consistently predicted to be tolerated by multiple in silico tools or not conserved in placental mammals with a minor amino acid change. (SB) 0600 - Variant is located in the annotated Filamin repeat 6 domain (Uniprot). (I) 0710 - Another missense variant comparable to the one identified in this case has inconclusive previous evidence for pathogenicity. A different variant in the same codon resulting in a change to a tryptophan has been reported as a VUS in ClinVar. (I) 0809 - Previous evidence of pathogenicity for this variant is inconclusive. This variant has been reported as a VUS 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 -

Cardiovascular phenotype Uncertain:1
Nov 16, 2021
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.R766Q variant (also known as c.2297G>A), located in coding exon 15 of the FLNC gene, results from a G to A substitution at nucleotide position 2297. The arginine at codon 766 is replaced by glutamine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated 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
Jan 14, 2025
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
0.090
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
22
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.40
T;.
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.18
FATHMM_MKL
Benign
0.36
N
LIST_S2
Pathogenic
0.98
D;D
M_CAP
Benign
0.055
D
MetaRNN
Benign
0.11
T;T
MetaSVM
Uncertain
-0.10
T
MutationAssessor
Benign
0.98
L;L
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-1.1
N;N
REVEL
Uncertain
0.29
Sift
Uncertain
0.010
D;D
Sift4G
Benign
0.13
T;T
Polyphen
0.48
P;B
Vest4
0.35
MVP
0.62
MPC
0.44
ClinPred
0.070
T
GERP RS
3.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.068
gMVP
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs369935650; hg19: chr7-128482660; COSMIC: COSV57954932; API