chr17-58218660-GT-G
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Variant summary
Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate
The NM_017777.4(MKS1):c.149delA(p.Asp50fs) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000616 in 1,461,726 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000062 ( 0 hom. )
Consequence
MKS1
NM_017777.4 frameshift
NM_017777.4 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: 3.83
Genes affected
MKS1 (HGNC:7121): (MKS transition zone complex subunit 1) The protein encoded by this gene localizes to the basal body and is required for formation of the primary cilium in ciliated epithelial cells. Mutations in this gene result in Meckel syndrome type 1 and in Bardet-Biedl syndrome type 13. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]
LPO (HGNC:6678): (lactoperoxidase) This gene encodes a member of the peroxidase family of proteins. The encoded preproprotein is proteolytically processed to generate the mature enzyme. Following its secretion from salivary, mammary, and other mucosal glands, this enzyme catalyzes the generation of the antimicrobial substance hypothiocyanous acid. This gene is present in a gene cluster on chromosome 17. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. [provided by RefSeq, Jan 2016]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 12 ACMG points.
PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 17-58218660-GT-G is Pathogenic according to our data. Variant chr17-58218660-GT-G is described in ClinVar as [Pathogenic]. Clinvar id is 2196405.Status of the report is criteria_provided_single_submitter, 1 stars.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes
GnomAD3 genomes
Cov.:
31
GnomAD4 exome AF: 0.00000616 AC: 9AN: 1461726Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4AN XY: 727156
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31
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ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis Pathogenic:1
| Pathogenic, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jun 10, 2022 | This sequence change creates a premature translational stop signal (p.Asp50Alafs*3) in the MKS1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in MKS1 are known to be pathogenic (PMID: 19466712, 24886560, 26490104). For these reasons, this variant has been classified as Pathogenic. This variant has not been reported in the literature in individuals affected with MKS1-related conditions. This variant is not present in population databases (gnomAD no frequency). - |
Computational scores
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at