rs28379666

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001458.5(FLNC):​c.8118C>T​(p.Leu2706Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00509 in 1,608,226 control chromosomes in the GnomAD database, including 159 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.015 ( 46 hom., cov: 31)
Exomes 𝑓: 0.0040 ( 113 hom. )

Consequence

FLNC
NM_001458.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: 0.0650

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-AS1 (HGNC:53474): (FLNC antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.43).
BP6
Variant 7-128858463-C-T is Benign according to our data. Variant chr7-128858463-C-T is described in ClinVar as Benign. ClinVar VariationId is 129100.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.065 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0153 (2330/152008) while in subpopulation AFR AF = 0.044 (1820/41364). AF 95% confidence interval is 0.0423. There are 46 homozygotes in GnomAd4. There are 1090 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High AC in GnomAd4 at 2330 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLNCNM_001458.5 linkc.8118C>T p.Leu2706Leu synonymous_variant Exon 48 of 48 ENST00000325888.13 NP_001449.3 Q14315-1Q59H94
FLNCNM_001127487.2 linkc.8019C>T p.Leu2673Leu synonymous_variant Exon 47 of 47 NP_001120959.1 Q14315-2Q59H94
FLNC-AS1NR_149055.1 linkn.102+4062G>A intron_variant Intron 1 of 3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLNCENST00000325888.13 linkc.8118C>T p.Leu2706Leu synonymous_variant Exon 48 of 48 1 NM_001458.5 ENSP00000327145.8 Q14315-1

Frequencies

GnomAD3 genomes
AF:
0.0153
AC:
2326
AN:
151890
Hom.:
46
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0440
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00498
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0153
Gnomad SAS
AF:
0.0279
Gnomad FIN
AF:
0.000565
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00281
Gnomad OTH
AF:
0.0110
GnomAD2 exomes
AF:
0.00949
AC:
2368
AN:
249484
AF XY:
0.00996
show subpopulations
Gnomad AFR exome
AF:
0.0459
Gnomad AMR exome
AF:
0.00255
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0121
Gnomad FIN exome
AF:
0.000186
Gnomad NFE exome
AF:
0.00230
Gnomad OTH exome
AF:
0.00644
GnomAD4 exome
AF:
0.00403
AC:
5863
AN:
1456218
Hom.:
113
Cov.:
32
AF XY:
0.00460
AC XY:
3331
AN XY:
724280
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0261
AC:
841
AN:
32244
American (AMR)
AF:
0.00237
AC:
106
AN:
44652
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26132
East Asian (EAS)
AF:
0.0166
AC:
657
AN:
39542
South Asian (SAS)
AF:
0.0217
AC:
1836
AN:
84610
European-Finnish (FIN)
AF:
0.000225
AC:
12
AN:
53416
Middle Eastern (MID)
AF:
0.00193
AC:
11
AN:
5712
European-Non Finnish (NFE)
AF:
0.00188
AC:
2085
AN:
1109872
Other (OTH)
AF:
0.00523
AC:
314
AN:
60038
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.369
Heterozygous variant carriers
0
268
536
805
1073
1341
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
94
188
282
376
470
<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:
0.0153
AC:
2330
AN:
152008
Hom.:
46
Cov.:
31
AF XY:
0.0147
AC XY:
1090
AN XY:
74310
show subpopulations
African (AFR)
AF:
0.0440
AC:
1820
AN:
41364
American (AMR)
AF:
0.00497
AC:
76
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.0153
AC:
79
AN:
5162
South Asian (SAS)
AF:
0.0279
AC:
134
AN:
4798
European-Finnish (FIN)
AF:
0.000565
AC:
6
AN:
10624
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.00281
AC:
191
AN:
67986
Other (OTH)
AF:
0.0109
AC:
23
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.418
Heterozygous variant carriers
0
101
202
303
404
505
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
28
56
84
112
140
<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:
0.0145
Hom.:
18
Bravo
AF:
0.0166
EpiCase
AF:
0.00267
EpiControl
AF:
0.00284

ClinVar

Significance: Benign
Submissions summary: Benign:11
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:7
Jan 15, 2024
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 09, 2025
Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Feb 14, 2020
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jul 22, 2016
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

-
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Cardiovascular phenotype Benign:1
Dec 26, 2018
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Myofibrillar myopathy 5;C3279722:Distal myopathy with posterior leg and anterior hand involvement;C4310749:Hypertrophic cardiomyopathy 26;CN239310:Dilated Cardiomyopathy, Dominant Benign:1
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.43
CADD
Benign
7.7
DANN
Benign
0.80
PhyloP100
0.065
Mutation Taster
=100/0
polymorphism (auto)

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: rs28379666; hg19: chr7-128498517; COSMIC: COSV99972435; COSMIC: COSV99972435; API