rs377390031

Positions:

chrX-154359566-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BP6BS2

The NM_001110556.2(FLNA):c.4060G>A(p.Asp1354Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000121 in 1,209,118 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 45 hemizygotes in GnomAD. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000063 ( 0 hom., 1 hem., cov: 25)

Exomes 𝑓: 0.00013 ( 0 hom. 44 hem. )

Consequence

FLNA
NM_001110556.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 1.05

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), FLNA. . Gene score misZ 3.7802 (greater than the threshold 3.09). GenCC has associacion of gene with X-linked Ehlers-Danlos syndrome, terminal osseous dysplasia-pigmentary defects syndrome, FG syndrome 2, frontometaphyseal dysplasia, heterotopia, periventricular, X-linked dominant, Melnick-Needles syndrome, otopalatodigital syndrome type 2, periventricular nodular heterotopia, otopalatodigital syndrome type 1, intestinal pseudoobstruction, neuronal, chronic idiopathic, X-linked, familial thoracic aortic aneurysm and aortic dissection, congenital short bowel syndrome, frontometaphyseal dysplasia 1, cardiac valvular dysplasia, X-linked.

BP6

Variant X-154359566-C-T is Benign according to our data. Variant chrX-154359566-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 190193.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=3}.

BS2

High Hemizygotes in GnomAdExome4 at 44 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FLNA	NM_001110556.2 linkuse as main transcript	c.4060G>A	p.Asp1354Asn	missense_variant	24/48	ENST00000369850.10	NP_001104026.1
FLNA	NM_001456.4 linkuse as main transcript	c.4060G>A	p.Asp1354Asn	missense_variant	24/47		NP_001447.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FLNA	ENST00000369850.10 linkuse as main transcript	c.4060G>A	p.Asp1354Asn	missense_variant	24/48	1	NM_001110556.2	ENSP00000358866		P21333-1

Frequencies

GnomAD3 genomes

AF:

0.0000626

AC:

AN:

111903

Hom.:

Cov.:

AF XY:

0.0000293

AC XY:

AN XY:

34089

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000388

AC:

AN:

180302

Hom.:

AF XY:

0.0000748

AC XY:

AN XY:

66876

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000525

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000746

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000127

AC:

139

AN:

1097215

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

362973

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000284

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000331

Gnomad4 SAS exome

AF:

0.0000370

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000140

Gnomad4 OTH exome

AF:

0.000369

GnomAD4 genome

AF:

0.0000626

AC:

AN:

111903

Hom.:

Cov.:

AF XY:

0.0000293

AC XY:

AN XY:

34089

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000130

Hom.:

Bravo

AF:

0.0000793

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000154

AC:

ExAC

AF:

0.0000414

AC:

EpiCase

AF:

0.000382

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jul 14, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Mayo Clinic Laboratories, Mayo Clinic	Nov 23, 2022	PP2 -

Familial thoracic aortic aneurysm and aortic dissection

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 08, 2019

The p.D1354N variant (also known as c.4060G>A), located in coding exon 23 of the FLNA gene, results from a G to A substitution at nucleotide position 4060. The aspartic acid at codon 1354 is replaced by asparagine, an amino acid with highly similar properties. This amino acid position is well conserved in available vertebrate species; however, asparagineis the reference amino acid in other vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Heterotopia, periventricular, X-linked dominant

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Claritas Genomics

Oct 01, 2014

- -

Melnick-Needles syndrome;C0265293:Frontometaphyseal dysplasia;C1844696:Oto-palato-digital syndrome, type II;C1848213:Heterotopia, periventricular, X-linked dominant

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 16, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.79

D;.;.;.;.

FATHMM_MKL

Benign

0.43

LIST_S2

Uncertain

0.89

D;D;.;D;D

M_CAP

Pathogenic

0.40

MetaRNN

Uncertain

0.43

T;T;T;T;T

MetaSVM

Uncertain

0.62

MutationAssessor

Uncertain

2.9

M;.;M;M;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.55

PROVEAN

Uncertain

-3.4

D;.;D;D;.

REVEL

Uncertain

0.44

Sift

Benign

0.045

D;.;D;D;.

Sift4G

Benign

0.078

T;T;T;T;T

Polyphen

0.99

D;.;B;B;.

Vest4

0.22

MVP

0.94

MPC

0.55

ClinPred

0.37

GERP RS

5.5

RBP_binding_hub_radar

0.97

RBP_regulation_power_radar

2.3

Varity_R

0.37

gMVP

0.79

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over