rs1557175646

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PP3_ModerateBP6BS2

The NM_001110556.2(FLNA):​c.7055C>T​(p.Ser2352Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00001 in 1,097,816 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 6 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. S2352S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 25)
Exomes 𝑓: 0.000010 ( 0 hom. 6 hem. )

Consequence

FLNA
NM_001110556.2 missense

Scores

12
3
2

Clinical Significance

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

Conservation

PhyloP100: 9.89

Publications

0 publications found
Variant links:
Genes affected
FLNA (HGNC:3754): (filamin A) The protein encoded by this gene is an actin-binding protein that crosslinks actin filaments and links actin filaments to membrane glycoproteins. The encoded protein is involved in remodeling the cytoskeleton to effect changes in cell shape and migration. This protein interacts with integrins, transmembrane receptor complexes, and second messengers. Defects in this gene are a cause of several syndromes, including periventricular nodular heterotopias (PVNH1, PVNH4), otopalatodigital syndromes (OPD1, OPD2), frontometaphyseal dysplasia (FMD), Melnick-Needles syndrome (MNS), and X-linked congenital idiopathic intestinal pseudoobstruction (CIIPX). Two transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Mar 2009]
FLNA Gene-Disease associations (from GenCC):
  • periventricular nodular heterotopia
    Inheritance: AD, XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • frontometaphyseal dysplasia 1
    Inheritance: XL Classification: DEFINITIVE Submitted by: G2P
  • genetic developmental and epileptic encephalopathy
    Inheritance: XL Classification: DEFINITIVE Submitted by: G2P
  • heterotopia, periventricular, X-linked dominant
    Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Illumina
  • intestinal pseudoobstruction, neuronal, chronic idiopathic, X-linked
    Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • Melnick-Needles syndrome
    Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae)
  • otopalatodigital syndrome type 2
    Inheritance: XL Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, G2P, Labcorp Genetics (formerly Invitae)
  • terminal osseous dysplasia-pigmentary defects syndrome
    Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae)
  • cardiac valvular dysplasia, X-linked
    Inheritance: XL Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • frontometaphyseal dysplasia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • congenital short bowel syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • otopalatodigital syndrome type 1
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
  • X-linked Ehlers-Danlos syndrome
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
  • familial thoracic aortic aneurysm and aortic dissection
    Inheritance: XL Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.889
BP6
Variant X-154351010-G-A is Benign according to our data. Variant chrX-154351010-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 533567.
BS2
High Hemizygotes in GnomAdExome4 at 6 XL,AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLNANM_001110556.2 linkc.7055C>T p.Ser2352Phe missense_variant Exon 44 of 48 ENST00000369850.10 NP_001104026.1 P21333-1Q60FE5Q6NXF2
FLNANM_001456.4 linkc.7031C>T p.Ser2344Phe missense_variant Exon 43 of 47 NP_001447.2 P21333-2Q60FE5Q6NXF2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLNAENST00000369850.10 linkc.7055C>T p.Ser2352Phe missense_variant Exon 44 of 48 1 NM_001110556.2 ENSP00000358866.3 P21333-1

Frequencies

GnomAD3 genomes
Cov.:
25
GnomAD2 exomes
AF:
0.0000110
AC:
2
AN:
181742
AF XY:
0.0000148
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000148
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000100
AC:
11
AN:
1097816
Hom.:
0
Cov.:
30
AF XY:
0.0000165
AC XY:
6
AN XY:
363258
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26394
American (AMR)
AF:
0.00
AC:
0
AN:
35201
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19384
East Asian (EAS)
AF:
0.000364
AC:
11
AN:
30206
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54140
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40358
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4119
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
841927
Other (OTH)
AF:
0.00
AC:
0
AN:
46087
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Hom
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
Cov.:
25
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection Uncertain:1
Sep 02, 2020
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.S2344F variant (also known as c.7031C>T), located in coding exon 42 of the FLNA gene, results from a C to T substitution at nucleotide position 7031. The serine at codon 2344 is replaced by phenylalanine, an amino acid with highly dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Melnick-Needles syndrome;C0265293:Frontometaphyseal dysplasia;C1844696:Oto-palato-digital syndrome, type II;C1848213:Heterotopia, periventricular, X-linked dominant Benign:1
Aug 07, 2022
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
AlphaMissense
Pathogenic
0.88
BayesDel_addAF
Pathogenic
0.33
D
BayesDel_noAF
Pathogenic
0.49
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.84
D;.;.;.;.
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.96
D;D;.;D;D
M_CAP
Pathogenic
0.45
D
MetaRNN
Pathogenic
0.89
D;D;D;D;D
MetaSVM
Uncertain
0.71
D
MutationAssessor
Pathogenic
3.0
M;.;.;.;.
PhyloP100
9.9
PrimateAI
Pathogenic
0.83
D
PROVEAN
Pathogenic
-4.9
D;.;D;D;.
REVEL
Pathogenic
0.87
Sift
Benign
0.080
T;.;T;T;.
Sift4G
Pathogenic
0.0010
D;D;D;D;D
Polyphen
0.64
P;.;D;D;.
Vest4
0.80
MutPred
0.61
Loss of disorder (P = 0.0112);.;.;.;.;
MVP
0.98
MPC
1.4
ClinPred
0.86
D
GERP RS
5.5
Varity_R
0.87
gMVP
0.55
Mutation Taster
=74/26
polymorphism

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

Other links and lift over

dbSNP: rs1557175646; hg19: chrX-153579378; API