19-15187220-C-T

Position:

chr19-15187220-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PP3_ModerateBP6_Very_StrongBS1BS2

The NM_000435.3(NOTCH3):c.1725G>A(p.Thr575=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00877 in 1,614,070 control chromosomes in the GnomAD database, including 74 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. T575T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0071 ( 3 hom., cov: 33)

Exomes 𝑓: 0.0089 ( 71 hom. )

Consequence

NOTCH3
NM_000435.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -6.82

Variant links:

Genes affected

NOTCH3 (HGNC:7883): (notch receptor 3) This gene encodes the third discovered human homologue of the Drosophilia melanogaster type I membrane protein notch. In Drosophilia, notch interaction with its cell-bound ligands (delta, serrate) establishes an intercellular signalling pathway that plays a key role in neural development. Homologues of the notch-ligands have also been identified in human, but precise interactions between these ligands and the human notch homologues remains to be determined. Mutations in NOTCH3 have been identified as the underlying cause of cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). [provided by RefSeq, Jul 2008]

NOTCH3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PP3

Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

BP6

Variant 19-15187220-C-T is Benign according to our data. Variant chr19-15187220-C-T is described in ClinVar as [Benign]. Clinvar id is 256122.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-15187220-C-T is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0071 (1082/152304) while in subpopulation AMR AF= 0.0104 (159/15302). AF 95% confidence interval is 0.00949. There are 3 homozygotes in gnomad4. There are 501 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High AC in GnomAd4 at 1082 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NOTCH3	NM_000435.3 linkuse as main transcript	c.1725G>A	p.Thr575=	synonymous_variant	11/33	ENST00000263388.7
NOTCH3	XM_005259924.5 linkuse as main transcript	c.1725G>A	p.Thr575=	synonymous_variant	11/32

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NOTCH3	ENST00000263388.7 linkuse as main transcript	c.1725G>A	p.Thr575=	synonymous_variant	11/33	1	NM_000435.3	P1
NOTCH3	ENST00000601011.1 linkuse as main transcript	c.1722G>A	p.Thr574=	synonymous_variant	11/23	5

Frequencies

GnomAD3 genomes

AF:

0.00711

AC:

1082

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00212

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0104

Gnomad ASJ

AF:

0.0213

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00642

Gnomad FIN

AF:

0.00169

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.0101

Gnomad OTH

AF:

0.0100

GnomAD3 exomes

AF:

0.00786

AC:

1970

AN:

250726

Hom.:

AF XY:

0.00803

AC XY:

1090

AN XY:

135760

show subpopulations

Gnomad AFR exome

AF:

0.00161

Gnomad AMR exome

AF:

0.00758

Gnomad ASJ exome

AF:

0.0288

Gnomad EAS exome

AF:

0.0000545

Gnomad SAS exome

AF:

0.00660

Gnomad FIN exome

AF:

0.000972

Gnomad NFE exome

AF:

0.00969

Gnomad OTH exome

AF:

0.0116

GnomAD4 exome

AF:

0.00895

AC:

13079

AN:

1461766

Hom.:

Cov.:

AF XY:

0.00899

AC XY:

6540

AN XY:

727196

show subpopulations

Gnomad4 AFR exome

AF:

0.00131

Gnomad4 AMR exome

AF:

0.00825

Gnomad4 ASJ exome

AF:

0.0283

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00677

Gnomad4 FIN exome

AF:

0.000919

Gnomad4 NFE exome

AF:

0.00948

Gnomad4 OTH exome

AF:

0.0111

GnomAD4 genome

AF:

0.00710

AC:

1082

AN:

152304

Hom.:

Cov.:

AF XY:

0.00673

AC XY:

501

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.00212

Gnomad4 AMR

AF:

0.0104

Gnomad4 ASJ

AF:

0.0213

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00642

Gnomad4 FIN

AF:

0.00169

Gnomad4 NFE

AF:

0.0101

Gnomad4 OTH

AF:

0.00994

Alfa

AF:

0.00756

Hom.:

Bravo

AF:

0.00809

EpiCase

AF:

0.0119

EpiControl

AF:

0.0131

ClinVar

Significance: Benign

Submissions summary: Benign:11

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:5

Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Aug 02, 2017	- -
Benign, no assertion criteria provided	clinical testing	Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)	-	- -
Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -
Benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, Amsterdam University Medical Center	-	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -

not provided

Benign:5

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 22, 2024	- -
Benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Aug 01, 2024	NOTCH3: PP3, BS1, BS2 -
Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Sep 25, 2023	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	May 25, 2021	- -

Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Benign

0.74

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.87

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.87

Position offset: -2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over