rs1557177751

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001110556.2(FLNA):c.3455C>T(p.Ala1152Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 25)

Consequence

FLNA
NM_001110556.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.72

Publications

0 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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.754

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.3455C>T	p.Ala1152Val	missense	Exon 22 of 48	NP_001104026.1
	FLNA	NM_001456.4		c.3455C>T	p.Ala1152Val	missense	Exon 22 of 47	NP_001447.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
FLNA	ENST00000369850.10	TSL:1 MANE Select	c.3455C>T	p.Ala1152Val	missense	Exon 22 of 48	ENSP00000358866.3
FLNA	ENST00000360319.9	TSL:1	c.3455C>T	p.Ala1152Val	missense	Exon 21 of 46	ENSP00000353467.4
FLNA	ENST00000369856.8	TSL:1	c.3374C>T	p.Ala1125Val	missense	Exon 21 of 47	ENSP00000358872.4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

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

Uncertain:1

Nov 27, 2017

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This sequence change replaces alanine with valine at codon 1152 of the FLNA protein (p.Ala1152Val). The alanine residue is highly conserved and there is a small physicochemical difference between alanine and valine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with FLNA-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0").

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.47

BayesDel_addAF

Uncertain

0.097

BayesDel_noAF

Benign

-0.10

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.72

FATHMM_MKL

Uncertain

0.85

LIST_S2

Uncertain

0.88

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.75

MetaSVM

Uncertain

0.53

MutationAssessor

Benign

0.91

PhyloP100

6.7

PrimateAI

Uncertain

0.66

PROVEAN

Uncertain

-3.1

REVEL

Uncertain

0.52

Sift

Benign

0.31

Sift4G

Uncertain

0.040

Polyphen

0.73

Vest4

0.69

MutPred

0.32

Loss of ubiquitination at K1151 (P = 0.0853)

MVP

0.93

MPC

0.85

ClinPred

0.96

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.43

gMVP

0.61

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.24

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.24

Position offset: 1

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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over