chr22-20982397-G-A
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM5BP4_Moderate
The NM_006767.4(LZTR1):c.26G>A(p.Gly9Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000179 in 1,560,702 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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. G9A) has been classified as Likely benign.
Frequency
Consequence
NM_006767.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
LZTR1 | NM_006767.4 | c.26G>A | p.Gly9Glu | missense_variant | 1/21 | ENST00000646124.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
LZTR1 | ENST00000646124.2 | c.26G>A | p.Gly9Glu | missense_variant | 1/21 | NM_006767.4 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000328 AC: 5AN: 152248Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000367 AC: 6AN: 163374Hom.: 0 AF XY: 0.0000571 AC XY: 5AN XY: 87604
GnomAD4 exome AF: 0.0000163 AC: 23AN: 1408454Hom.: 0 Cov.: 32 AF XY: 0.0000244 AC XY: 17AN XY: 695686
GnomAD4 genome ? AF: 0.0000328 AC: 5AN: 152248Hom.: 0 Cov.: 33 AF XY: 0.0000538 AC XY: 4AN XY: 74382
ClinVar
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jan 29, 2024 | This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 9 of the LZTR1 protein (p.Gly9Glu). This variant is present in population databases (rs756485244, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with LZTR1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1794905). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on LZTR1 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. - |
Schwannomatosis 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Baylor Genetics | Jun 02, 2023 | - - |
Hereditary cancer-predisposing syndrome;CN230736:Cardiovascular phenotype Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Aug 24, 2021 | The p.G9E variant (also known as c.26G>A), located in coding exon 1 of the LZTR1 gene, results from a G to A substitution at nucleotide position 26. The glycine at codon 9 is replaced by glutamic acid, an amino acid with similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at