rs587783201
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_139058.3(ARX):c.454G>A(p.Ala152Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000144 in 694,227 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A152G) has been classified as Uncertain significance.
Frequency
Consequence
NM_139058.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ARX | NM_139058.3 | c.454G>A | p.Ala152Thr | missense_variant | 2/5 | ENST00000379044.5 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ARX | ENST00000379044.5 | c.454G>A | p.Ala152Thr | missense_variant | 2/5 | 1 | NM_139058.3 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00 AC: 0AN: 104636Hom.: 0 Cov.: 21 AF XY: 0.00 AC XY: 0AN XY: 29986 FAILED QC
GnomAD4 exome AF: 0.00000144 AC: 1AN: 694227Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0AN XY: 210969
GnomAD4 genome ? Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 104636Hom.: 0 Cov.: 21 AF XY: 0.00 AC XY: 0AN XY: 29986
ClinVar
Submissions by phenotype
not provided Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Feb 17, 2021 | Not observed in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
Uncertain significance, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Feb 08, 2013 | - - |
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 15, 2021 | The c.454G>A (p.A152T) alteration is located in exon 2 (coding exon 2) of the ARX gene. This alteration results from a G to A substitution at nucleotide position 454, causing the alanine (A) at amino acid position 152 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Intellectual disability, X-linked, with or without seizures, arx-related;C3463992:Developmental and epileptic encephalopathy, 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Sep 27, 2022 | This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 152 of the ARX protein (p.Ala152Thr). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with ARX-related conditions. ClinVar contains an entry for this variant (Variation ID: 157758). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt ARX protein function. 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. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at