22-23787173-A-G
Variant summary
Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP2
The NM_003073.5(SMARCB1):c.4A>G(p.Met2Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. M2I) has been classified as Uncertain significance.
Frequency
Consequence
NM_003073.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 5 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SMARCB1 | NM_003073.5 | c.4A>G | p.Met2Val | missense_variant | 1/9 | ENST00000644036.2 | |
SMARCB1 | NM_001362877.2 | c.4A>G | p.Met2Val | missense_variant | 1/9 | ||
SMARCB1 | NM_001317946.2 | c.4A>G | p.Met2Val | missense_variant | 1/9 | ||
SMARCB1 | NM_001007468.3 | c.4A>G | p.Met2Val | missense_variant | 1/9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SMARCB1 | ENST00000644036.2 | c.4A>G | p.Met2Val | missense_variant | 1/9 | NM_003073.5 | A1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome Cov.: 29
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Dec 04, 2021 | 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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with SMARCB1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 2 of the SMARCB1 protein (p.Met2Val). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.