chrX-154365206-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP6BS2

The NM_001110556.2(FLNA):c.1621G>A(p.Glu541Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000198 in 1,210,090 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 12 hemizygotes in GnomAD. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E541Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000044 ( 0 hom., 1 hem., cov: 24)

Exomes 𝑓: 0.000017 ( 0 hom. 11 hem. )

Consequence

FLNA
NM_001110556.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:4

Conservation

PhyloP100: 6.08

Publications

4 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

FLNA links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP6

Variant X-154365206-C-T is Benign according to our data. Variant chrX-154365206-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 213521.

BS2

High Hemizygotes in GnomAdExome4 at 11 XL,AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FLNA	NM_001110556.2 link	c.1621G>A	p.Glu541Lys	missense_variant	Exon 11 of 48	ENST00000369850.10	NP_001104026.1	P21333-1Q60FE5Q6NXF2
FLNA	NM_001456.4 link	c.1621G>A	p.Glu541Lys	missense_variant	Exon 11 of 47		NP_001447.2	P21333-2Q60FE5Q6NXF2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FLNA	ENST00000369850.10 link	c.1621G>A	p.Glu541Lys	missense_variant	Exon 11 of 48	1	NM_001110556.2	ENSP00000358866.3		P21333-1

Frequencies

GnomAD3 genomes

AF:

0.0000444

AC:

AN:

112598

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000645

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000186

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000359

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000330

AC:

AN:

181661

AF XY:

0.0000591

show subpopulations

Gnomad AFR exome

AF:

0.000161

Gnomad AMR exome

AF:

0.000110

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:

0.0000173

AC:

AN:

1097492

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

363038

show subpopulations

African (AFR)

AF:

0.000227

AC:

AN:

26396

American (AMR)

AF:

0.000199

AC:

AN:

35206

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19385

East Asian (EAS)

AF:

0.0000331

AC:

AN:

30206

South Asian (SAS)

AF:

0.0000185

AC:

AN:

54138

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40186

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4135

European-Non Finnish (NFE)

AF:

0.00000475

AC:

AN:

841763

Other (OTH)

AF:

0.00

AC:

AN:

46077

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.0000444

AC:

AN:

112598

Hom.:

Cov.:

AF XY:

0.0000288

AC XY:

AN XY:

34760

show subpopulations

African (AFR)

AF:

0.0000645

AC:

AN:

31023

American (AMR)

AF:

0.000186

AC:

AN:

10748

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2656

East Asian (EAS)

AF:

0.00

AC:

AN:

3581

South Asian (SAS)

AF:

0.000359

AC:

AN:

2784

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6236

Middle Eastern (MID)

AF:

0.00

AC:

AN:

238

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53136

Other (OTH)

AF:

0.00

AC:

AN:

1511

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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.:

Bravo

AF:

0.0000378

ExAC

AF:

0.00000826

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Dec 31, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Apr 14, 2021

Mayo Clinic Laboratories, Mayo Clinic

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

FLNA-related disorder

Uncertain:1

Sep 07, 2022

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The FLNA c.1621G>A variant is predicted to result in the amino acid substitution p.Glu541Lys. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.016% of alleles in individuals of African descent in gnomAD, including four hemizygous individuals (http://gnomad.broadinstitute.org/variant/X-153593574-C-T). Although we suspect this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Intestinal pseudoobstruction, neuronal, chronic idiopathic, X-linked

Benign:1

Nov 16, 2021

Johns Hopkins Genomics, Johns Hopkins University

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Familial thoracic aortic aneurysm and aortic dissection

Benign:1

Dec 18, 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

Dec 29, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.53

BayesDel_addAF

Benign

-0.092

BayesDel_noAF

Benign

-0.11

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.65

D;.;.;.;.

FATHMM_MKL

Uncertain

0.89

LIST_S2

Pathogenic

0.99

D;D;.;D;D

M_CAP

Benign

0.082

MetaRNN

Uncertain

0.60

D;D;D;D;D

MetaSVM

Uncertain

0.23

MutationAssessor

Benign

1.8

L;.;L;L;.

PhyloP100

6.1

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-2.3

N;.;N;N;.

REVEL

Uncertain

0.60

Sift

Benign

0.062

T;.;T;T;.

Sift4G

Benign

0.40

T;T;T;T;T

Polyphen

0.87

P;.;P;P;.

Vest4

0.73

MVP

0.87

MPC

0.70

ClinPred

0.14

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.78

gMVP

0.74

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over