chrX-154350142-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001110556.2(FLNA):c.7222G>A(p.Gly2408Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000237 in 1,210,104 control chromosomes in the GnomAD database, including 1 homozygotes. There are 81 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. G2408V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., 42 hem., cov: 25)

Exomes 𝑓: 0.00014 ( 1 hom. 39 hem. )

Consequence

FLNA
NM_001110556.2 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 6.09

Publications

5 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: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.031033784).

BP6

Variant X-154350142-C-T is Benign according to our data. Variant chrX-154350142-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 197499.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00122 (138/112664) while in subpopulation AFR AF = 0.00429 (133/31035). AF 95% confidence interval is 0.00369. There are 0 homozygotes in GnomAd4. There are 42 alleles in the male GnomAd4 subpopulation. Median coverage is 25. This position passed quality control check.

BS2

High Hemizygotes in GnomAd4 at 42 XL,AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001110556.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLNA	NM_001110556.2	MANE Select	c.7222G>A	p.Gly2408Ser	missense	Exon 45 of 48	NP_001104026.1
	FLNA	NM_001456.4		c.7198G>A	p.Gly2400Ser	missense	Exon 44 of 47	NP_001447.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
FLNA	ENST00000369850.10	TSL:1 MANE Select	c.7222G>A	p.Gly2408Ser	missense	Exon 45 of 48	ENSP00000358866.3
FLNA	ENST00000360319.9	TSL:1	c.7198G>A	p.Gly2400Ser	missense	Exon 43 of 46	ENSP00000353467.4
FLNA	ENST00000369856.8	TSL:1	c.7141G>A	p.Gly2381Ser	missense	Exon 44 of 47	ENSP00000358872.4

Frequencies

GnomAD3 genomes

AF:

0.00123

AC:

138

AN:

112610

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00430

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000372

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000662

GnomAD2 exomes

AF:

0.000352

AC:

AN:

181734

AF XY:

0.000222

show subpopulations

Gnomad AFR exome

AF:

0.00436

Gnomad AMR exome

AF:

0.000329

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:

0.000224

GnomAD4 exome

AF:

0.000136

AC:

149

AN:

1097440

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

362884

show subpopulations

African (AFR)

AF:

0.00459

AC:

121

AN:

26381

American (AMR)

AF:

0.000341

AC:

AN:

35204

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19384

East Asian (EAS)

AF:

0.00

AC:

AN:

30204

South Asian (SAS)

AF:

0.00

AC:

AN:

54133

European-Finnish (FIN)

AF:

0.0000248

AC:

AN:

40367

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4136

European-Non Finnish (NFE)

AF:

0.00000356

AC:

AN:

841563

Other (OTH)

AF:

0.000260

AC:

AN:

46068

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

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:

0.00122

AC:

138

AN:

112664

Hom.:

Cov.:

AF XY:

0.00121

AC XY:

AN XY:

34848

show subpopulations

African (AFR)

AF:

0.00429

AC:

133

AN:

31035

American (AMR)

AF:

0.000371

AC:

AN:

10776

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2660

East Asian (EAS)

AF:

0.00

AC:

AN:

3560

South Asian (SAS)

AF:

0.00

AC:

AN:

2768

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6236

Middle Eastern (MID)

AF:

0.00

AC:

AN:

219

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

53193

Other (OTH)

AF:

0.000653

AC:

AN:

1531

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

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:

0.000293

Hom.:

Bravo

AF:

0.00148

ESP6500AA

AF:

0.00474

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000347

AC:

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:4

Jan 07, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Oct 11, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not specified

Benign:3

Aug 24, 2023

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Jun 05, 2015

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Familial thoracic aortic aneurysm and aortic dissection

Benign:1

May 31, 2017

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as 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

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

FLNA-related disorder

Benign:1

Jun 25, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Uncertain

0.10

BayesDel_noAF

Pathogenic

0.37

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.86

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.95

M_CAP

Pathogenic

0.71

MetaRNN

Benign

0.031

MetaSVM

Pathogenic

0.92

MutationAssessor

Pathogenic

3.1

PhyloP100

6.1

PrimateAI

Uncertain

0.68

PROVEAN

Uncertain

-4.2

REVEL

Pathogenic

0.86

Sift

Benign

0.044

Sift4G

Benign

0.080

Polyphen

1.0

Vest4

0.56

MVP

0.97

MPC

0.60

ClinPred

0.093

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.76

gMVP

0.52

Mutation Taster

=50/50

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.14

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over