chr1-47417035-C-A
Variant summary
Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1_StrongPP5_Very_Strong
The NM_012186.3(FOXE3):c.720C>A(p.Cys240*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,321,262 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★).
Frequency
Consequence
NM_012186.3 stop_gained
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 12 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000133 AC: 2AN: 149946Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000162 AC: 7AN: 43132Hom.: 0 AF XY: 0.000151 AC XY: 4AN XY: 26500
GnomAD4 exome AF: 0.0000171 AC: 20AN: 1171316Hom.: 1 Cov.: 34 AF XY: 0.0000209 AC XY: 12AN XY: 574360
GnomAD4 genome AF: 0.0000133 AC: 2AN: 149946Hom.: 0 Cov.: 33 AF XY: 0.0000137 AC XY: 1AN XY: 73094
ClinVar
Submissions by phenotype
Congenital primary aphakia Pathogenic:5
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Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as Pathogenic. Following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with anterior segment dysgenesis 2, multiple subtypes (MIM#610256). (I) 0108 - This gene is associated with both recessive and dominant disease. This gene is associated with autosomal recessive anterior segment dysgenesis 2, multiple subtypes (MIM#610256) and there are also many reports of a less severe autosomal dominant eye phenotype involving Peter's anomaly and other ocular dysgenesis (PMIDs: 16826526, 20361012, OMIM). Autosomal dominant aortic aneurysm, familial thoracic 11 (MIM#617349) has also been reported in several families but this association is currently uncertain (PMID: 20301299, OMIM). (I) 0205 - Variant is predicted to result in a truncated protein (premature termination codon is NOT located at least 54 nucleotides upstream of the final exon-exon junction) with less than 1/3 of the protein sequence affected. (SP) 0252 - This variant is homozygous. (I) 0304 - Variant is present in gnomAD (v2) <0.01 for a recessive condition (7 heterozygotes, 0 homozygotes). (SP) 0704 - Another downstream truncating variant comparable to the one identified in this case has limited previous evidence for pathogenicity (DECIPHER). (SP) 0801 - This variant has strong previous evidence of pathogenicity in unrelated individuals. This variant has been classified as pathogenic by several clinical laboratories in ClinVar and observed as homozygous in at least four families with anterior segment dysgenesis or primary aphakia (PMIDs: 27218149, 16826526, 32499604, 20361012). (SP) 0901 - This variant has strong evidence for segregation with disease. This variant has been seen to segregate in several large families in a homozygous state (PMIDs: 27218149, 16826526, 20361012). (SP) 1002 - This variant has moderate functional evidence supporting abnormal protein function. This variant has been show to disrupt the binding of FOXE3 with DNAJB1 leading to reduced expression of the latter (PMID: 27218149). (SP) 1208 - Inheritance information for this variant is not currently available in this individual. (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -
Stop-gained (nonsense): predicted to result in a loss or disruption of normal protein function through protein truncation. The predicted truncated protein may be shortened by more than 10% (PVS1_S). The variant has been reported to be associated with FOXE3 related disorder (ClinVar ID: VCV000008448).The variant was co-segregated with Anterior segment dysgenesis 2, multiple subtypes in multiple affected family members (PMID: 16826526, 32499604, 20361012) (PP1_S). It is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: 0.000162, PM2_M). Therefore, this variant is classified as pathogenic according to the recommendation of ACMG/AMP guideline. -
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not provided Pathogenic:2
Published functional studies demonstrate that C240X variant leads to a decrease in the expression of downstream target gene expression (Khan et al., 2016); Nonsense variant in the C-terminus predicted to result in protein truncation, as the last 80 amino acids are lost, and other loss-of-function variants have been reported downstream in the Human Gene Mutation Database (Stenson et al., 2014); This variant is associated with the following publications: (PMID: 20361012, 16826526, 20140963, 24033328, 27218149, 32499604) -
FOXE3: PVS1:Strong, PM2, PM3, PP1, PP4 -
Anterior segment dysgenesis Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at