rs2073470

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001110556.2(FLNA):​c.663C>T​(p.Pro221Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00435 in 1,209,832 control chromosomes in the GnomAD database, including 154 homozygotes. There are 1,500 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. P221P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0052 ( 12 hom., 186 hem., cov: 25)
Exomes 𝑓: 0.0043 ( 142 hom. 1314 hem. )

Consequence

FLNA
NM_001110556.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -4.24

Publications

4 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

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=-0.76).
BP6
Variant X-154367698-G-A is Benign according to our data. Variant chrX-154367698-G-A is described in ClinVar as [Benign]. Clinvar id is 93771.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-4.24 with no splicing effect.
BA1
GnomAdExome4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.0738 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLNANM_001110556.2 linkc.663C>T p.Pro221Pro synonymous_variant Exon 4 of 48 ENST00000369850.10 NP_001104026.1 P21333-1Q60FE5Q6NXF2
FLNANM_001456.4 linkc.663C>T p.Pro221Pro synonymous_variant Exon 4 of 47 NP_001447.2 P21333-2Q60FE5Q6NXF2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLNAENST00000369850.10 linkc.663C>T p.Pro221Pro synonymous_variant Exon 4 of 48 1 NM_001110556.2 ENSP00000358866.3 P21333-1

Frequencies

GnomAD3 genomes
AF:
0.00509
AC:
572
AN:
112354
Hom.:
11
Cov.:
25
show subpopulations
Gnomad AFR
AF:
0.000452
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0387
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0329
Gnomad SAS
AF:
0.00182
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000188
Gnomad OTH
AF:
0.00728
GnomAD2 exomes
AF:
0.0157
AC:
2842
AN:
181390
AF XY:
0.0110
show subpopulations
Gnomad AFR exome
AF:
0.000403
Gnomad AMR exome
AF:
0.0816
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0379
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000197
Gnomad OTH exome
AF:
0.0128
GnomAD4 exome
AF:
0.00426
AC:
4677
AN:
1097423
Hom.:
142
Cov.:
33
AF XY:
0.00362
AC XY:
1314
AN XY:
363255
show subpopulations
African (AFR)
AF:
0.000682
AC:
18
AN:
26403
American (AMR)
AF:
0.0762
AC:
2683
AN:
35199
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19386
East Asian (EAS)
AF:
0.0535
AC:
1615
AN:
30205
South Asian (SAS)
AF:
0.000979
AC:
53
AN:
54146
European-Finnish (FIN)
AF:
0.0000251
AC:
1
AN:
39781
Middle Eastern (MID)
AF:
0.00193
AC:
8
AN:
4136
European-Non Finnish (NFE)
AF:
0.000116
AC:
98
AN:
842083
Other (OTH)
AF:
0.00436
AC:
201
AN:
46084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
237
474
712
949
1186
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
70
140
210
280
350
<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:
0.00517
AC:
581
AN:
112409
Hom.:
12
Cov.:
25
AF XY:
0.00538
AC XY:
186
AN XY:
34591
show subpopulations
African (AFR)
AF:
0.000451
AC:
14
AN:
31013
American (AMR)
AF:
0.0394
AC:
423
AN:
10730
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2648
East Asian (EAS)
AF:
0.0330
AC:
117
AN:
3545
South Asian (SAS)
AF:
0.00219
AC:
6
AN:
2734
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6196
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
218
European-Non Finnish (NFE)
AF:
0.000188
AC:
10
AN:
53109
Other (OTH)
AF:
0.00718
AC:
11
AN:
1533
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.510
Heterozygous variant carriers
0
21
41
62
82
103
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00360
Hom.:
22
Bravo
AF:
0.00941
EpiCase
AF:
0.000545
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:11
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:7
Jan 12, 2024
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jul 21, 2023
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 09, 2025
Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

BS1;BP6;BP7 -

-
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

Aug 08, 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. -

Feb 19, 2016
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 03, 2014
Claritas Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Nov 11, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Familial thoracic aortic aneurysm and aortic dissection Benign:1
May 28, 2015
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
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
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
-0.76
CADD
Benign
0.17
DANN
Benign
0.57
PhyloP100
-4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs2073470; hg19: chrX-153596066; COSMIC: COSV61044920; COSMIC: COSV61044920; API