rs759075520

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001458.5(FLNC):c.1261C>T(p.Arg421Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000744 in 1,612,848 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

FLNC
NM_001458.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 1.50

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FLNC	NM_001458.5 link	c.1261C>T	p.Arg421Trp	missense_variant	Exon 8 of 48	ENST00000325888.13	NP_001449.3	Q14315-1Q59H94
FLNC	NM_001127487.2 link	c.1261C>T	p.Arg421Trp	missense_variant	Exon 8 of 47		NP_001120959.1	Q14315-2Q59H94

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FLNC	ENST00000325888.13 link	c.1261C>T	p.Arg421Trp	missense_variant	Exon 8 of 48	1	NM_001458.5	ENSP00000327145.8		Q14315-1
FLNC	ENST00000346177.6 link	c.1261C>T	p.Arg421Trp	missense_variant	Exon 8 of 47	1		ENSP00000344002.6		Q14315-2

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152102

Hom.:

Cov.:

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:

0.000479

GnomAD3 exomes

AF:

0.0000202

AC:

AN:

247788

Hom.:

AF XY:

0.0000296

AC XY:

AN XY:

135028

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000447

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000787

AC:

115

AN:

1460746

Hom.:

Cov.:

AF XY:

0.0000839

AC XY:

AN XY:

726692

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000953

Gnomad4 OTH exome

AF:

0.0000994

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152102

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74294

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:

0.000479

Alfa

AF:

0.000143

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000248

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Sep 23, 2019

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Reported in one individual from a control cohort (Gomez et al., 2017); This variant is associated with the following publications: (PMID: 28356264) -

Feb 28, 2020

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

Dec 04, 2021

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Cardiovascular phenotype

Uncertain:1

Aug 16, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.R421W variant (also known as c.1261C>T), located in coding exon 8 of the FLNC gene, results from a C to T substitution at nucleotide position 1261. The arginine at codon 421 is replaced by tryptophan, an amino acid with dissimilar properties. This alteration was reported in one ostensibly healthy individual (Gómez J et al. Circ Cardiovasc Genet, 2017 Apr;10:). 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

Oct 24, 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

0.16

BayesDel_addAF

Benign

-0.061

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.78

D;.

Eigen

Uncertain

0.27

Eigen_PC

Benign

0.22

FATHMM_MKL

Benign

0.43

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Uncertain

0.29

MetaRNN

Uncertain

0.51

D;D

MetaSVM

Uncertain

-0.11

MutationAssessor

Uncertain

2.4

M;M

PrimateAI

Benign

0.33

PROVEAN

Pathogenic

-4.7

D;D

REVEL

Uncertain

0.42

Sift

Uncertain

0.0010

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

0.96

D;D

Vest4

0.58

MVP

0.60

MPC

0.68

ClinPred

0.69

GERP RS

4.5

RBP_binding_hub_radar

0.97

RBP_regulation_power_radar

3.5

Varity_R

0.29

gMVP

0.42

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over