rs200653747
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Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PP2PP3_ModerateBS2
The NM_001458.5(FLNC):āc.2450T>Cā(p.Ile817Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000192 in 1,613,844 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: š 0.000033 ( 0 hom., cov: 33)
Exomes š: 0.000018 ( 0 hom. )
Consequence
FLNC
NM_001458.5 missense
NM_001458.5 missense
Scores
10
8
1
Clinical Significance
Conservation
PhyloP100: 7.99
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]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -1 ACMG points.
PP2
?
Missense variant where missense usually causes diseases, FLNC
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.901
BS2
?
High AC in GnomAd4 at 5 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
FLNC | NM_001458.5 | c.2450T>C | p.Ile817Thr | missense_variant | 16/48 | ENST00000325888.13 | |
FLNC | NM_001127487.2 | c.2450T>C | p.Ile817Thr | missense_variant | 16/47 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
FLNC | ENST00000325888.13 | c.2450T>C | p.Ile817Thr | missense_variant | 16/48 | 1 | NM_001458.5 | P3 | |
FLNC | ENST00000346177.6 | c.2450T>C | p.Ile817Thr | missense_variant | 16/47 | 1 | A1 | ||
FLNC | ENST00000388853.3 | n.566T>C | non_coding_transcript_exon_variant | 4/4 | 2 |
Frequencies
GnomAD3 genomes ? AF: 0.0000329 AC: 5AN: 152154Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.0000241 AC: 6AN: 249198Hom.: 0 AF XY: 0.00000739 AC XY: 1AN XY: 135330
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GnomAD4 exome AF: 0.0000178 AC: 26AN: 1461690Hom.: 0 Cov.: 37 AF XY: 0.0000124 AC XY: 9AN XY: 727154
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GnomAD4 genome ? AF: 0.0000329 AC: 5AN: 152154Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74326
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:1
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
Myofibrillar myopathy 5;C3279722:Distal myopathy with posterior leg and anterior hand involvement;C4310749:Hypertrophic cardiomyopathy 26 Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago | Mar 30, 2021 | FLNC NM_001458.4 exon 16 p.Ile817Thr (c.2450T>C): This variant has been reported in the literature in one individual with hypertrophic cardiomyopathy (Cirino 2017 PMID:29030401). This variant is present in 0.008% (2/24146) of African alleles in the Genome Aggregation Database (http://gnomad.broadinstitute.org/variant/7-128482908-T-C) and is present in ClinVar (Variation ID:228692). Evolutionary conservation and computational predictive tools suggest that this variant may impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Sep 06, 2021 | - - |
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Feb 12, 2014 | The c.2450T>C variant in FLNC has not been reported in the literature nor previo usly identified by our laboratory. The c.2450T>C has been identified in 2/4306 o f African American chromosomes by the NHLBI Exome Sequencing Project (http://evs .gs.washington.edu/EVS) though this frequency is not high enough to rule out a p athogenic role given the later onset of disease. Computational analyses suggest that the Ile817Thr variant in FLNC may impact the protein, though this informati on is not predictive enough to determine pathogenicity. In summary, additional d ata is needed to determine the clinical significance of this variant. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | May 15, 2023 | In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Identified in a patient with HCM who harbored a second variant in the ABCC9 gene (Cirino et al., 2017); This variant is associated with the following publications: (PMID: 32112656, 29030401) - |
Myofibrillar myopathy 5;C3279722:Distal myopathy with posterior leg and anterior hand involvement;C4310749:Hypertrophic cardiomyopathy 26;CN239310:Dilated Cardiomyopathy, Dominant Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Sep 21, 2023 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Uncertain
D;.
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D;D
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M;M
MutationTaster
Benign
D;D
PrimateAI
Pathogenic
D
PROVEAN
Uncertain
D;D
REVEL
Pathogenic
Sift
Uncertain
D;D
Sift4G
Pathogenic
D;D
Polyphen
P;D
Vest4
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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Calibrated prediction
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at