rs111516546

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP6

The NM_001110556.2(FLNA):​c.1900C>T​(p.Arg634Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000745 in 1,208,765 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 1 hem., cov: 23)
Exomes 𝑓: 0.0000064 ( 0 hom. 1 hem. )

Consequence

FLNA
NM_001110556.2 missense

Scores

5
8
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 2.24
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BP6
Variant X-154364648-G-A is Benign according to our data. Variant chrX-154364648-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 2631579.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=2}. Variant chrX-154364648-G-A is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FLNANM_001110556.2 linkc.1900C>T p.Arg634Cys missense_variant Exon 13 of 48 ENST00000369850.10 NP_001104026.1 P21333-1Q60FE5Q6NXF2
FLNANM_001456.4 linkc.1900C>T p.Arg634Cys missense_variant Exon 13 of 47 NP_001447.2 P21333-2Q60FE5Q6NXF2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FLNAENST00000369850.10 linkc.1900C>T p.Arg634Cys missense_variant Exon 13 of 48 1 NM_001110556.2 ENSP00000358866.3 P21333-1

Frequencies

GnomAD3 genomes
AF:
0.0000180
AC:
2
AN:
111210
Hom.:
0
Cov.:
23
AF XY:
0.0000299
AC XY:
1
AN XY:
33410
show subpopulations
Gnomad AFR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000220
AC:
4
AN:
181467
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67499
show subpopulations
Gnomad AFR exome
AF:
0.000242
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000123
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000638
AC:
7
AN:
1097555
Hom.:
0
Cov.:
33
AF XY:
0.00000275
AC XY:
1
AN XY:
363215
show subpopulations
Gnomad4 AFR exome
AF:
0.000152
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000356
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000180
AC:
2
AN:
111210
Hom.:
0
Cov.:
23
AF XY:
0.0000299
AC XY:
1
AN XY:
33410
show subpopulations
Gnomad4 AFR
AF:
0.0000655
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
ESP6500AA
AF:
0.000266
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00000825
AC:
1

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1
Sep 17, 2024
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: FLNA c.1900C>T (p.Arg634Cys) results in a non-conservative amino acid change located in the Filamin/ABP280 repeat (IPR001298) of the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 2.2e-05 in 181467 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.1900C>T in individuals affected with Periventricular Nodular Heterotopia 1 and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 2631579). Based on the evidence outlined above, the variant was classified as uncertain significance. -

FLNA-related disorder Uncertain:1
Aug 12, 2023
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The FLNA c.1900C>T variant is predicted to result in the amino acid substitution p.Arg634Cys. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.024% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/X-153593016-G-A). Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Melnick-Needles syndrome;C0265293:Frontometaphyseal dysplasia;C1844696:Oto-palato-digital syndrome, type II;C1848213:Heterotopia, periventricular, X-linked dominant Benign:1
Oct 31, 2022
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
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.095
T
BayesDel_noAF
Uncertain
-0.070
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.83
D;.;.;.;.
FATHMM_MKL
Benign
0.71
D
LIST_S2
Uncertain
0.94
D;D;.;D;D
M_CAP
Pathogenic
0.34
D
MetaRNN
Uncertain
0.70
D;D;D;D;D
MetaSVM
Uncertain
0.47
D
MutationAssessor
Uncertain
2.6
M;.;M;M;.
PrimateAI
Pathogenic
0.88
D
PROVEAN
Pathogenic
-5.0
D;.;D;D;.
REVEL
Uncertain
0.64
Sift
Uncertain
0.0010
D;.;D;D;.
Sift4G
Uncertain
0.055
T;T;T;T;T
Polyphen
1.0
D;.;P;P;.
Vest4
0.74
MVP
0.95
MPC
1.6
ClinPred
0.44
T
GERP RS
5.0
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.8
Varity_R
0.82
gMVP
0.90

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: -15

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs111516546; hg19: chrX-153593016; API