17-58206030-G-T
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_001321269.2(MKS1):c.1646C>A(p.Ser549Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000827 in 1,571,202 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 5/5 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Consequence
NM_001321269.2 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152160Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000598 AC: 11AN: 183800Hom.: 0 AF XY: 0.0000809 AC XY: 8AN XY: 98890
GnomAD4 exome AF: 0.0000867 AC: 123AN: 1419042Hom.: 0 Cov.: 32 AF XY: 0.0000769 AC XY: 54AN XY: 702324
GnomAD4 genome AF: 0.0000460 AC: 7AN: 152160Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74328
ClinVar
Submissions by phenotype
Meckel syndrome, type 1 Uncertain:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Bardet-Biedl syndrome 13 Uncertain:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
MKS1-related disorder Uncertain:1
The MKS1 c.1646C>A variant is predicted to result in the amino acid substitution p.Ser549Tyr. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.012% of alleles in individuals of European (Non-Finnish) descent in gnomAD. Of note, this variant is located in an alternate transcript; in the main transcript (NM_017777.4) this variant is located in the 3’ untranslated region (c.*49C>A). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at