NM_001110556.2:c.4494C>T

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001110556.2(FLNA):c.4494C>T(p.Asp1498Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000455 in 1,208,127 control chromosomes in the GnomAD database, including 1 homozygotes. There are 16 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., 2 hem., cov: 23)

Exomes 𝑓: 0.000040 ( 1 hom. 14 hem. )

Consequence

FLNA
NM_001110556.2 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -5.26

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:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

BP6

Variant X-154358549-G-A is Benign according to our data. Variant chrX-154358549-G-A is described in ClinVar as Benign. ClinVar VariationId is 213449.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-5.26 with no splicing effect.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.0000985 (11/111643) while in subpopulation AMR AF = 0.000751 (8/10651). AF 95% confidence interval is 0.000374. There are 0 homozygotes in GnomAd4. There are 2 alleles in the male GnomAd4 subpopulation. Median coverage is 23. This position passed quality control check.

BS2

High Hemizygotes in GnomAd4 at 2 XL,AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FLNA	NM_001110556.2 link	c.4494C>T	p.Asp1498Asp	synonymous_variant	Exon 27 of 48	ENST00000369850.10	NP_001104026.1	P21333-1Q60FE5Q6NXF2
FLNA	NM_001456.4 link	c.4494C>T	p.Asp1498Asp	synonymous_variant	Exon 27 of 47		NP_001447.2	P21333-2Q60FE5Q6NXF2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FLNA	ENST00000369850.10 link	c.4494C>T	p.Asp1498Asp	synonymous_variant	Exon 27 of 48	1	NM_001110556.2	ENSP00000358866.3		P21333-1

Frequencies

GnomAD3 genomes

AF:

0.0000896

AC:

AN:

111589

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000658

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000377

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000378

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000188

AC:

AN:

180526

AF XY:

0.000179

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00106

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000739

Gnomad FIN exome

AF:

0.0000654

Gnomad NFE exome

AF:

0.0000247

Gnomad OTH exome

AF:

0.000225

GnomAD4 exome

AF:

0.0000401

AC:

AN:

1096484

Hom.:

Cov.:

AF XY:

0.0000387

AC XY:

AN XY:

362202

show subpopulations

African (AFR)

AF:

0.0000379

AC:

AN:

26389

American (AMR)

AF:

0.000852

AC:

AN:

35204

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19381

East Asian (EAS)

AF:

0.00

AC:

AN:

30200

South Asian (SAS)

AF:

0.0000370

AC:

AN:

54127

European-Finnish (FIN)

AF:

0.0000253

AC:

AN:

39560

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4120

European-Non Finnish (NFE)

AF:

0.00000951

AC:

AN:

841439

Other (OTH)

AF:

0.0000434

AC:

AN:

46064

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

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:

0.0000985

AC:

AN:

111643

Hom.:

Cov.:

AF XY:

0.0000591

AC XY:

AN XY:

33853

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30710

American (AMR)

AF:

0.000751

AC:

AN:

10651

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2635

East Asian (EAS)

AF:

0.00

AC:

AN:

3556

South Asian (SAS)

AF:

0.000378

AC:

AN:

2646

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6097

Middle Eastern (MID)

AF:

0.00

AC:

AN:

219

European-Non Finnish (NFE)

AF:

0.0000378

AC:

AN:

52926

Other (OTH)

AF:

0.00

AC:

AN:

1525

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

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:

0.0000712

Hom.:

Bravo

AF:

0.0000945

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Oct 09, 2023

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 12, 2014

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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

Nov 07, 2017

Ambry Genetics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as 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

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

May 01, 2018

Athena Diagnostics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

CADD

Benign

0.44

(source)

DANN

Benign

0.45

PhyloP100

-5.3

RBP_binding_hub_radar

0.97

RBP_regulation_power_radar

2.7

Mutation Taster

=88/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over