rs200679107

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 1P and 20B. PP3BP4_StrongBP6_Very_StrongBS1BS2

The NM_001110556.2(FLNA):​c.2609A>G​(p.His870Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000744 in 1,209,590 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 35 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H870Y) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., 7 hem., cov: 23)
Exomes 𝑓: 0.000068 ( 0 hom. 28 hem. )

Consequence

FLNA
NM_001110556.2 missense

Scores

9
5
3

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:4

Conservation

PhyloP100: 7.94

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: Benign. The variant received -19 ACMG points.

PP3
Multiple lines of computational evidence support a deleterious effect 8: AlphaMissense, BayesDel_noAF, M_CAP, MutationAssessor, phyloP100way_vertebrate, PROVEAN, REVEL, REVEL [when Cadd, max_spliceai, FATHMM_MKL, MetaRNN, MutationTaster was below the threshold]
BP4
Computational evidence support a benign effect (MetaRNN=0.052993834).
BP6
Variant X-154362289-T-C is Benign according to our data. Variant chrX-154362289-T-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 587846.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000134 (15/111894) while in subpopulation SAS AF = 0.00224 (6/2678). AF 95% confidence interval is 0.000975. There are 0 homozygotes in GnomAd4. There are 7 alleles in the male GnomAd4 subpopulation. Median coverage is 23. This position passed quality control check.
BS2
High Hemizygotes in GnomAd4 at 7 XL,AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLNANM_001110556.2 linkc.2609A>G p.His870Arg missense_variant Exon 18 of 48 ENST00000369850.10 NP_001104026.1 P21333-1Q60FE5Q6NXF2
FLNANM_001456.4 linkc.2609A>G p.His870Arg missense_variant Exon 18 of 47 NP_001447.2 P21333-2Q60FE5Q6NXF2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLNAENST00000369850.10 linkc.2609A>G p.His870Arg missense_variant Exon 18 of 48 1 NM_001110556.2 ENSP00000358866.3 P21333-1

Frequencies

GnomAD3 genomes
AF:
0.000134
AC:
15
AN:
111840
Hom.:
0
Cov.:
23
show subpopulations
Gnomad AFR
AF:
0.000260
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000941
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00223
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000773
AC:
14
AN:
181221
AF XY:
0.0000741
show subpopulations
Gnomad AFR exome
AF:
0.000323
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:
0.0000683
AC:
75
AN:
1097696
Hom.:
0
Cov.:
33
AF XY:
0.0000771
AC XY:
28
AN XY:
363310
show subpopulations
African (AFR)
AF:
0.000606
AC:
16
AN:
26403
American (AMR)
AF:
0.0000284
AC:
1
AN:
35206
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19386
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30206
South Asian (SAS)
AF:
0.00103
AC:
56
AN:
54145
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40068
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4136
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
842055
Other (OTH)
AF:
0.0000434
AC:
2
AN:
46091
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<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:
0.000134
AC:
15
AN:
111894
Hom.:
0
Cov.:
23
AF XY:
0.000205
AC XY:
7
AN XY:
34090
show subpopulations
African (AFR)
AF:
0.000260
AC:
8
AN:
30818
American (AMR)
AF:
0.0000939
AC:
1
AN:
10645
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2643
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3529
South Asian (SAS)
AF:
0.00224
AC:
6
AN:
2678
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6187
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
218
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
52968
Other (OTH)
AF:
0.00
AC:
0
AN:
1525
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome 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
Alfa
AF:
0.000226
Hom.:
0
Bravo
AF:
0.000136
ESP6500AA
AF:
0.000552
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000140
AC:
17

ClinVar

Significance: Benign/Likely benign
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Sep 16, 2018
Gharavi Laboratory, Columbia University
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:research

- -

Feb 27, 2020
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Familial thoracic aortic aneurysm and aortic dissection Benign:1
Feb 12, 2018
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely 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. -

Melnick-Needles syndrome;C0265293:Frontometaphyseal dysplasia;C1844696:Oto-palato-digital syndrome, type II;C1848213:Heterotopia, periventricular, X-linked dominant Benign:1
Nov 07, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

FLNA-related disorder Benign:1
May 19, 2024
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.81
BayesDel_addAF
Uncertain
0.086
D
BayesDel_noAF
Pathogenic
0.24
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.84
D;.;.;.;.
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.98
D;D;.;D;D
M_CAP
Pathogenic
0.60
D
MetaRNN
Benign
0.053
T;T;T;T;T
MetaSVM
Pathogenic
0.94
D
MutationAssessor
Pathogenic
3.0
M;.;M;M;.
PhyloP100
7.9
PrimateAI
Uncertain
0.79
T
PROVEAN
Pathogenic
-6.0
D;.;D;D;.
REVEL
Pathogenic
0.83
Sift
Benign
0.034
D;.;D;D;.
Sift4G
Uncertain
0.044
D;D;D;D;T
Polyphen
0.24
B;.;D;D;.
Vest4
0.36
MVP
0.97
MPC
1.6
ClinPred
0.30
T
GERP RS
4.9
Varity_R
0.91
gMVP
0.65
Mutation Taster
=85/15
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs200679107; hg19: chrX-153590657; API