rs774835995
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3
The NM_000368.5(TSC1):āc.2018C>Gā(p.Ser673Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,730 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 (ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S673Y) has been classified as Likely benign.
Frequency
Consequence
NM_000368.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TSC1 | NM_000368.5 | c.2018C>G | p.Ser673Cys | missense_variant | 16/23 | ENST00000298552.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TSC1 | ENST00000298552.9 | c.2018C>G | p.Ser673Cys | missense_variant | 16/23 | 1 | NM_000368.5 | P4 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461730Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727160
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
Tuberous sclerosis 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jun 13, 2022 | This sequence change replaces serine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 673 of the TSC1 protein (p.Ser673Cys). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with TSC1-related conditions. ClinVar contains an entry for this variant (Variation ID: 1024820). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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