rs1026438103
Variant summary
Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1PP3_StrongPP5
The NM_000124.4(ERCC6):c.2060C>T(p.Ser687Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/23 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. S687S) has been classified as Likely benign.
Frequency
Consequence
NM_000124.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Our verdict: Likely_pathogenic. The variant received 7 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 152030Hom.: 0 Cov.: 31 show subpopulations
GnomAD4 exome AF: 0.00000752 AC: 11AN: 1461832Hom.: 0 Cov.: 31 AF XY: 0.00000825 AC XY: 6AN XY: 727228 show subpopulations
GnomAD4 genome AF: 0.00000658 AC: 1AN: 152030Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 74266 show subpopulations
ClinVar
Submissions by phenotype
not provided Pathogenic:1
This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 687 of the ERCC6 protein (p.Ser687Leu). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This missense change has been observed in individual(s) with Cockayne syndrome (PMID: 19894250, 27004399, 29572252). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 552600). 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 disruptive. For these reasons, this variant has been classified as Pathogenic. -
Cockayne syndrome type 2 Pathogenic:1
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Cerebrooculofacioskeletal syndrome 1;C0265201:DE SANCTIS-CACCHIONE SYNDROME;C0751038:Cockayne syndrome type 2 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at