chrX-154364584-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_001110556.2(FLNA):c.1964G>A(p.Arg655His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000048 in 1,208,958 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 18 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R655C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.000049 ( 0 hom. 17 hem. )

Consequence

FLNA
NM_001110556.2 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.751

Publications

2 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 -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.24285498).

BP6

Variant X-154364584-C-T is Benign according to our data. Variant chrX-154364584-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 422764.

BS2

High Hemizygotes in GnomAdExome4 at 17 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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FLNA	NM_001110556.2	MANE Select	c.1964G>A	p.Arg655His	missense	Exon 13 of 48	NP_001104026.1
	FLNA	NM_001456.4		c.1964G>A	p.Arg655His	missense	Exon 13 of 47	NP_001447.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
FLNA	ENST00000369850.10	TSL:1 MANE Select	c.1964G>A	p.Arg655His	missense	Exon 13 of 48	ENSP00000358866.3
FLNA	ENST00000360319.9	TSL:1	c.1964G>A	p.Arg655His	missense	Exon 12 of 46	ENSP00000353467.4
FLNA	ENST00000369856.8	TSL:1	c.1883G>A	p.Arg628His	missense	Exon 12 of 47	ENSP00000358872.4

Frequencies

GnomAD3 genomes

AF:

0.0000358

AC:

AN:

111580

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000378

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:

0.00

GnomAD2 exomes

AF:

0.0000387

AC:

AN:

180931

AF XY:

0.0000298

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000219

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000124

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000492

AC:

AN:

1097378

Hom.:

Cov.:

AF XY:

0.0000468

AC XY:

AN XY:

363212

show subpopulations

African (AFR)

AF:

0.0000379

AC:

AN:

26401

American (AMR)

AF:

0.000199

AC:

AN:

35206

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19386

East Asian (EAS)

AF:

0.0000662

AC:

AN:

30204

South Asian (SAS)

AF:

0.00

AC:

AN:

54147

European-Finnish (FIN)

AF:

0.00

AC:

AN:

39716

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4136

European-Non Finnish (NFE)

AF:

0.0000511

AC:

AN:

842094

Other (OTH)

AF:

0.0000217

AC:

AN:

46088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.436

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:

0.0000358

AC:

AN:

111580

Hom.:

Cov.:

AF XY:

0.0000296

AC XY:

AN XY:

33754

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30719

American (AMR)

AF:

0.000378

AC:

AN:

10571

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2636

East Asian (EAS)

AF:

0.00

AC:

AN:

3537

South Asian (SAS)

AF:

0.00

AC:

AN:

2660

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6056

Middle Eastern (MID)

AF:

0.00

AC:

AN:

238

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

52974

Other (OTH)

AF:

0.00

AC:

AN:

1503

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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:

0.00

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.00000825

AC:

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (5)

Familial thoracic aortic aneurysm and aortic dissection (1)

Melnick-Needles syndrome;C0265293:Frontometaphyseal dysplasia;C1844696:Oto-palato-digital syndrome, type II;C1848213:Heterotopia, periventricular, X-linked dominant (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.43

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.61

FATHMM_MKL

Benign

0.13

LIST_S2

Uncertain

0.90

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.24

MetaSVM

Uncertain

0.091

MutationAssessor

Benign

0.20

PhyloP100

0.75

PrimateAI

Benign

0.34

PROVEAN

Benign

-2.0

REVEL

Uncertain

0.34

Sift

Benign

0.046

Sift4G

Uncertain

0.050

Polyphen

0.93

Vest4

0.25

MutPred

0.46

Loss of phosphorylation at S657 (P = 0.1031)

MVP

0.87

MPC

1.3

ClinPred

0.14

GERP RS

2.2

Varity_R

0.14

gMVP

0.29

Mutation Taster

=97/3

polymorphism

(source)

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

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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

Computational scores

Splicing

Publications

Other links and lift over