X-154366081-C-T

Position:

chrX-154366081-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 1P and 7B. PP2BP4_ModerateBS1_SupportingBS2

The NM_001110556.2(FLNA):c.1372G>A(p.Val458Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000256 in 1,209,157 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 13 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000088 ( 0 hom., 1 hem., cov: 25)

Exomes 𝑓: 0.000027 ( 0 hom. 12 hem. )

Consequence

FLNA
NM_001110556.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 0.851

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 -6 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.

BP4

Computational evidence support a benign effect (MetaRNN=0.13416702).

BS1

Variant frequency is greater than expected in population mid. gnomad4_exome allele frequency = 0.0000274 (30/1096098) while in subpopulation MID AF= 0.000971 (4/4120). AF 95% confidence interval is 0.000331. There are 0 homozygotes in gnomad4_exome. There are 12 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High Hemizygotes in GnomAdExome4 at 12 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FLNA	NM_001110556.2 linkuse as main transcript	c.1372G>A	p.Val458Ile	missense_variant	9/48	ENST00000369850.10	NP_001104026.1
FLNA	NM_001456.4 linkuse as main transcript	c.1372G>A	p.Val458Ile	missense_variant	9/47		NP_001447.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FLNA	ENST00000369850.10 linkuse as main transcript	c.1372G>A	p.Val458Ile	missense_variant	9/48	1	NM_001110556.2	ENSP00000358866		P21333-1

Frequencies

GnomAD3 genomes

AF:

0.00000885

AC:

AN:

113006

Hom.:

Cov.:

AF XY:

0.0000284

AC XY:

AN XY:

35154

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:

0.00418

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000112

AC:

AN:

179120

Hom.:

AF XY:

0.00

AC XY:

AN XY:

66120

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000732

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.0000274

AC:

AN:

1096098

Hom.:

Cov.:

AF XY:

0.0000331

AC XY:

AN XY:

362338

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000852

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000226

Gnomad4 OTH exome

AF:

0.0000868

GnomAD4 genome

AF:

0.00000884

AC:

AN:

113059

Hom.:

Cov.:

AF XY:

0.0000284

AC XY:

AN XY:

35217

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:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000826

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Dec 22, 2022	The FLNA c.1372G>A; p.Val458Ile variant (rs782791907), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 211011). This variant is only observed on two alleles in the Genome Aggregation Database, indicating it is not a common polymorphism. The valine at codon 458 is moderately conserved, and computational analyses predict that this variant is neutral (REVEL: 0.131). Due to limited information, the clinical significance of this variant is uncertain at this time. -
Uncertain significance, criteria provided, single submitter	clinical testing	Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden	Nov 03, 2021	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

May 04, 2015

- -

Heterotopia, periventricular, X-linked dominant

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Al Jalila Children’s Genomics Center, Al Jalila Childrens Speciality Hospital

Sep 24, 2020

- -

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

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.43

CADD

Benign

DANN

Benign

0.89

DEOGEN2

Benign

0.40

T;.;.;.;.

FATHMM_MKL

Benign

0.40

LIST_S2

Benign

0.82

T;T;.;T;T

M_CAP

Benign

0.023

MetaRNN

Benign

0.13

T;T;T;T;T

MetaSVM

Benign

-0.74

MutationAssessor

Benign

1.4

L;.;L;L;.

MutationTaster

Benign

0.79

N;N;N;N

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.58

N;N;N;N;.

REVEL

Benign

0.13

Sift

Benign

0.25

T;T;T;T;.

Sift4G

Benign

0.26

T;T;T;T;T

Polyphen

0.048

B;.;B;B;.

Vest4

0.23

MutPred

0.56

Loss of sheet (P = 0.0357);.;Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);.;

MVP

0.79

MPC

0.63

ClinPred

0.033

GERP RS

2.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.064

gMVP

0.27

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