rs201215245
Variant summary
Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_StrongBS1BS2
The NM_017617.5(NOTCH1):c.4031C>T(p.Thr1344Met) variant causes a missense change. The variant allele was found at a frequency of 0.000448 in 1,592,770 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1344R) has been classified as Uncertain significance.
Frequency
Consequence
NM_017617.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -16 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000401 AC: 61AN: 152182Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000445 AC: 96AN: 215554Hom.: 0 AF XY: 0.000500 AC XY: 60AN XY: 120052
GnomAD4 exome AF: 0.000453 AC: 653AN: 1440588Hom.: 0 Cov.: 33 AF XY: 0.000468 AC XY: 335AN XY: 716534
GnomAD4 genome AF: 0.000401 AC: 61AN: 152182Hom.: 0 Cov.: 33 AF XY: 0.000390 AC XY: 29AN XY: 74338
ClinVar
Submissions by phenotype
not provided Uncertain:2Benign:1
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This variant is associated with the following publications: (PMID: 26820064) -
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Familial thoracic aortic aneurysm and aortic dissection Benign:2
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
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not specified Benign:1
Variant summary: NOTCH1 c.4031C>T (p.Thr1344Met) results in a non-conservative amino acid change located in the EGF-like domain (IPR000742) of the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00045 in 215554 control chromosomes. The observed variant frequency is approximately 14-fold of the estimated maximal expected allele frequency for a pathogenic variant in NOTCH1 causing Aortic Valve Disease phenotype (3.1e-05), strongly suggesting that the variant is benign. c.4031C>T has been reported in the literature as a VUS in individuals affected with left-sided congenital heart disease (Kerstjens-Frederikse_2016) and thoracic aortic aneurysm (Salmasi_2022), without strong evidence for causality. These reports do not provide unequivocal conclusions about association of the variant with Aortic Valve Disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 26820064, 35830949). ClinVar contains an entry for this variant (Variation ID: 449810). Based on the evidence outlined above, the variant was classified as likely benign. -
Adams-Oliver syndrome 5 Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at