chr17-80118764-G-T
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate
The NM_000152.5(GAA):c.2758G>T(p.Gly920Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,388 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. G920D) has been classified as Uncertain significance.
Frequency
Consequence
NM_000152.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
GAA | NM_000152.5 | c.2758G>T | p.Gly920Cys | missense_variant | 19/20 | ENST00000302262.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
GAA | ENST00000302262.8 | c.2758G>T | p.Gly920Cys | missense_variant | 19/20 | 1 | NM_000152.5 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152192Hom.: 0 Cov.: 32
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461196Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 726878
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152192Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74350
ClinVar
Submissions by phenotype
Glycogen storage disease, type II Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Mar 28, 2022 | This sequence change replaces glycine, which is neutral and non-polar, with cysteine, which is neutral and slightly polar, at codon 920 of the GAA protein (p.Gly920Cys). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with GAA-related conditions. 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 expected to disrupt GAA 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