rs201779159
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2
The NM_017617.5(NOTCH1):c.5414T>C(p.Leu1805Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000107 in 1,613,162 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L1805F) has been classified as Uncertain significance.
Frequency
Consequence
NM_017617.5 missense
Scores
Clinical Significance
Conservation
Publications
- Adams-Oliver syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Illumina, Orphanet
- Adams-Oliver syndrome 5Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
- aortic valve disease 1Inheritance: AD Classification: STRONG Submitted by: G2P, PanelApp Australia
- connective tissue disorderInheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
- leukodystrophyInheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
- familial bicuspid aortic valveInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- familial thoracic aortic aneurysm and aortic dissectionInheritance: AD Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000986 AC: 15AN: 152080Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000483 AC: 12AN: 248646 AF XY: 0.0000296 show subpopulations
GnomAD4 exome AF: 0.000107 AC: 157AN: 1461082Hom.: 0 Cov.: 35 AF XY: 0.000100 AC XY: 73AN XY: 726832 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000986 AC: 15AN: 152080Hom.: 0 Cov.: 33 AF XY: 0.0000808 AC XY: 6AN XY: 74286 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
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The NOTCH1 c.5414T>C; p.Leu1805Pro variant (rs201779159) is reported in the literature in an individual affected with bicuspid aortic valve disease (Girdauskas 2017). This variant is reported in ClinVar (Variation ID: 499922) and if found in the non-Finnish European population with an allele frequency of 0.0109% (14/128,060 alleles) in the Genome Aggregation Database. Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.648). Due to limited information, the clinical significance of this variant is uncertain at this time. References: Girdauskas E et al. Genetic abnormalities in bicuspid aortic valve root phenotype: preliminary results. Eur J Cardiothorac Surg. 2017 Jul 1;52(1):156-162. PMID: 28387797. -
Adams-Oliver syndrome 5 Uncertain:1Benign:1
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Pulmonary arterial hypertension Uncertain:1
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NOTCH1-related disorder Uncertain:1
The NOTCH1 c.5414T>C variant is predicted to result in the amino acid substitution p.Leu1805Pro. This variant was reported in a study of individuals with bicuspid aortic valve-associated aortopathy, however additional details were not provided (Girdauskas et al. 2017. PubMed ID: 28387797; Girdauskas et al. 2018. PubMed ID: 30059548). This variant is reported in 0.011% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/9-139396511-A-G). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Familial thoracic aortic aneurysm and aortic dissection Uncertain:1
The p.L1805P variant (also known as c.5414T>C), located in coding exon 29 of the NOTCH1 gene, results from a T to C substitution at nucleotide position 5414. The leucine at codon 1805 is replaced by proline, an amino acid with similar properties. This alteration was reported in a bicuspid aortic valve cohort (Girdauskas E et al. Eur J Cardiothorac Surg, 2017 Jul;52:156-162). This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Aortic valve disease 1 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at