rs772574007

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4BP6BS2

The NM_001458.5(FLNC):​c.2278G>A​(p.Glu760Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000103 in 1,549,342 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).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

FLNC
NM_001458.5 missense

Scores

6
13

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 4.17

Publications

1 publications found
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 Gene-Disease associations (from GenCC):
  • dilated cardiomyopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Ambry Genetics, G2P
  • myofibrillar myopathy 5
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen, G2P
  • hypertrophic cardiomyopathy 26
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
  • distal myopathy with posterior leg and anterior hand involvement
    Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics
  • familial isolated restrictive cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • heart conduction disease
    Inheritance: AD Classification: LIMITED Submitted by: Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.2855368).
BP6
Variant 7-128842587-G-A is Benign according to our data. Variant chr7-128842587-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 539447.
BS2
High AC in GnomAdExome4 at 15 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLNCNM_001458.5 linkc.2278G>A p.Glu760Lys missense_variant Exon 15 of 48 ENST00000325888.13 NP_001449.3
FLNCNM_001127487.2 linkc.2278G>A p.Glu760Lys missense_variant Exon 15 of 47 NP_001120959.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLNCENST00000325888.13 linkc.2278G>A p.Glu760Lys missense_variant Exon 15 of 48 1 NM_001458.5 ENSP00000327145.8

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152212
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000132
AC:
2
AN:
151910
AF XY:
0.0000248
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000107
AC:
15
AN:
1397130
Hom.:
0
Cov.:
34
AF XY:
0.0000174
AC XY:
12
AN XY:
689200
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31562
American (AMR)
AF:
0.00
AC:
0
AN:
35722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25162
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35744
South Asian (SAS)
AF:
0.000114
AC:
9
AN:
79274
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48344
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4490
European-Non Finnish (NFE)
AF:
0.00000556
AC:
6
AN:
1078978
Other (OTH)
AF:
0.00
AC:
0
AN:
57854
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152212
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74358
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000241
AC:
1
AN:
41448
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000843
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000109
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hypertrophic cardiomyopathy 26 Uncertain:1
Jul 16, 2023
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), and recently has been associated with arrhythmogenic right ventricular cardiomyopathy (ARVC; PMID: 31627847). 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) 0115 - Variants in this gene are known to have variable expressivity. In four families with ARVC associated with FLNC variants, majority of variant carriers had ECG repolarisation and depolarisation abnormalities, which in isolation, are not considered diagnostic criteria for ARVC, and had no detectable echocardiographic disease features (PMID: 31627847). (I) 0200 - Variant is predicted to result in a missense amino acid change from glutamic acid to lysine. (I) 0251 - This variant is heterozygous. (I) 0302 - Variant is present in gnomAD (v2) <0.001 for a dominant condition (3 heterozygotes, 0 homozygotes). (SP) 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) 0604 - Variant is not located in an established domain, motif, hotspot or informative constraint region. (I) 0705 - No comparable missense variants have previous evidence for pathogenicity. (I) 0806 - This variant has moderate previous evidence of being benign in unrelated individuals. It has been reported as a VUS by a clinical testing laboratory (ClinVar). However, they recently re-classified this variant as likely benign, as it has been identified in three affected individuals who each had a genetic diagnosis in a different gene and an unaffected individual (personal communication). (SB) 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 -

not provided Uncertain:1
Feb 05, 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;CN239310:Dilated Cardiomyopathy, Dominant Benign:1
Aug 30, 2023
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
Benign
-0.056
T
BayesDel_noAF
Benign
-0.12
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.30
T;.
Eigen
Uncertain
0.25
Eigen_PC
Uncertain
0.34
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.94
D;D
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.29
T;T
MetaSVM
Benign
-0.48
T
MutationAssessor
Benign
1.4
L;L
PhyloP100
4.2
PrimateAI
Uncertain
0.67
T
PROVEAN
Benign
-1.2
N;N
REVEL
Benign
0.16
Sift
Benign
0.32
T;T
Sift4G
Benign
0.42
T;T
Polyphen
0.32
B;D
Vest4
0.56
MutPred
0.34
Gain of MoRF binding (P = 0.0158);Gain of MoRF binding (P = 0.0158);
MVP
0.66
MPC
0.99
ClinPred
0.64
D
GERP RS
5.5
Varity_R
0.28
gMVP
0.67
Mutation Taster
=42/58
disease causing

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

Other links and lift over

dbSNP: rs772574007; hg19: chr7-128482641; API