rs782761341

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 3P and 1B. PM2PP3BP6

The NM_001110556.2(FLNA):​c.6415C>T​(p.Arg2139Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000413 in 1,210,572 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. 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: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 25)
Exomes 𝑓: 0.0000027 ( 0 hom. 0 hem. )

Consequence

FLNA
NM_001110556.2 missense

Scores

12
3
2

Clinical Significance

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

Conservation

PhyloP100: 0.804

Publications

1 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: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.825
BP6
Variant X-154352640-G-A is Benign according to our data. Variant chrX-154352640-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 465012.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLNANM_001110556.2 linkc.6415C>T p.Arg2139Trp missense_variant Exon 40 of 48 ENST00000369850.10 NP_001104026.1 P21333-1Q60FE5Q6NXF2
FLNANM_001456.4 linkc.6391C>T p.Arg2131Trp missense_variant Exon 39 of 47 NP_001447.2 P21333-2Q60FE5Q6NXF2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLNAENST00000369850.10 linkc.6415C>T p.Arg2139Trp missense_variant Exon 40 of 48 1 NM_001110556.2 ENSP00000358866.3 P21333-1

Frequencies

GnomAD3 genomes
AF:
0.0000177
AC:
2
AN:
113105
Hom.:
0
Cov.:
25
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000278
Gnomad SAS
AF:
0.000353
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000552
AC:
1
AN:
181030
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000738
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000273
AC:
3
AN:
1097467
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
363243
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26401
American (AMR)
AF:
0.00
AC:
0
AN:
35205
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19386
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30206
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54146
European-Finnish (FIN)
AF:
0.0000502
AC:
2
AN:
39845
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4136
European-Non Finnish (NFE)
AF:
0.00000119
AC:
1
AN:
842056
Other (OTH)
AF:
0.00
AC:
0
AN:
46086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
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

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:
0.0000177
AC:
2
AN:
113105
Hom.:
0
Cov.:
25
AF XY:
0.00
AC XY:
0
AN XY:
35249
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31168
American (AMR)
AF:
0.00
AC:
0
AN:
10806
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2652
East Asian (EAS)
AF:
0.000278
AC:
1
AN:
3601
South Asian (SAS)
AF:
0.000353
AC:
1
AN:
2831
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6303
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
240
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53295
Other (OTH)
AF:
0.00
AC:
0
AN:
1529
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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

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:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.00000827
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Aug 24, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Mar 28, 2024
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Melnick-Needles syndrome;C0265293:Frontometaphyseal dysplasia;C1844696:Oto-palato-digital syndrome, type II;C1848213:Heterotopia, periventricular, X-linked dominant Benign:1
Dec 12, 2023
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
Uncertain
0.52
BayesDel_addAF
Pathogenic
0.36
D
BayesDel_noAF
Pathogenic
0.47
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.88
D;.;.;.
FATHMM_MKL
Benign
0.61
D
LIST_S2
Pathogenic
1.0
D;D;.;D
M_CAP
Pathogenic
0.48
D
MetaRNN
Pathogenic
0.82
D;D;D;D
MetaSVM
Uncertain
0.69
D
MutationAssessor
Pathogenic
3.3
M;.;.;.
PhyloP100
0.80
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-6.1
D;.;D;D
REVEL
Pathogenic
0.70
Sift
Pathogenic
0.0
D;.;D;D
Sift4G
Pathogenic
0.0010
D;D;D;D
Polyphen
1.0
D;.;D;D
Vest4
0.80
MutPred
0.43
Loss of disorder (P = 0.0043);.;.;.;
MVP
0.98
MPC
1.2
ClinPred
0.93
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.90
gMVP
0.65
Mutation Taster
=78/22
polymorphism

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: rs782761341; hg19: chrX-153581008; COSMIC: COSV61049640; COSMIC: COSV61049640; API