rs782726997

chrX-154366088-G-AchrX-154366088-G-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_Strong BP6_Very_Strong BP7

The NM_001110556.2(FLNA):c.1365C>T(p.Thr455=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000488 in 1,209,072 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 16 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. T455T) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000027 (0 hom., 0 hem., cov: 25)
  • Exomes 𝑓: 0.000051 (0 hom. 16 hem.)
• Consequence: FLNA NM_001110556.2 synonymous
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: -0.657

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]

ACMG classification

Verdict is Benign. Variant got -13 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.68).
• BP6: Variant X-154366088-G-A is Benign according to our data. Variant chrX-154366088-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 510965.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-0.657 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FLNA	NM_001110556.2	c.1365C>T	p.Thr455=	synonymous_variant	9/48	ENST00000369850.10
FLNA	NM_001456.4	c.1365C>T	p.Thr455=	synonymous_variant	9/47

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FLNA	ENST00000369850.10	c.1365C>T	p.Thr455=	synonymous_variant	9/48	1	NM_001110556.2

Frequencies

GnomAD3 genomes AF: 0.0000266 AC: 3 AN: 112963 Hom.: 0 Cov.: 25 AF XY: 0.00 AC XY: 0 AN XY: 35107

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: 0.0000563

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000335 AC: 6 AN: 179295 Hom.: 0 AF XY: 0.0000151 AC XY: 1 AN XY: 66259

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000366

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000740

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000498

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000511 AC: 56 AN: 1096109 Hom.: 0 Cov.: 33 AF XY: 0.0000442 AC XY: 16 AN XY: 362301

Gnomad4 AFR exome AF: 0.0000379

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000369

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000594

Gnomad4 OTH exome AF: 0.0000434

GnomAD4 genome AF: 0.0000266 AC: 3 AN: 112963 Hom.: 0 Cov.: 25 AF XY: 0.00 AC XY: 0 AN XY: 35107

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: 0.0000563

Gnomad4 OTH AF: 0.00

Bravo AF: 0.0000189

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Significance: Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Jul 19, 2017

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Familial thoracic aortic aneurysm and aortic dissection Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 25, 2020

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

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Oct 25, 2023

- -

not provided Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Sep 01, 2023

FLNA: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.68
Cadd	Benign	0.10
Dann	Benign	0.66
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs782726997; hg19: chrX-153594456;