chr19-15188240-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 2P and 20B. PM1BP4_StrongBP6_Very_StrongBS1BS2

The NM_000435.3(NOTCH3):c.1487C>T(p.Pro496Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0157 in 1,596,008 control chromosomes in the GnomAD database, including 288 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. P496P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.012 ( 24 hom., cov: 32)

Exomes 𝑓: 0.016 ( 264 hom. )

Consequence

NOTCH3
NM_000435.3 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: 3.84

Publications

25 publications found

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 Gene-Disease associations (from GenCC):

cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1
Inheritance: AR, AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Genomics England PanelApp, Laboratory for Molecular Medicine, Orphanet, Labcorp Genetics (formerly Invitae)
lateral meningocele syndrome
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
infantile myofibromatosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
myofibromatosis, infantile, 2
Inheritance: AD Classification: LIMITED Submitted by: G2P
pulmonary arterial hypertension
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

NOTCH3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -18 ACMG points.

PM1

In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 3 benign, 5 uncertain in NM_000435.3

BP4

Computational evidence support a benign effect (MetaRNN=0.0056042075).

BP6

Variant 19-15188240-G-A is Benign according to our data. Variant chr19-15188240-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 256120.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0122 (1862/152256) while in subpopulation NFE AF = 0.0169 (1150/68004). AF 95% confidence interval is 0.0161. There are 24 homozygotes in GnomAd4. There are 849 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 24 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NOTCH3	NM_000435.3 link	c.1487C>T	p.Pro496Leu	missense_variant	Exon 9 of 33	ENST00000263388.7	NP_000426.2	Q9UM47
NOTCH3	XM_005259924.5 link	c.1487C>T	p.Pro496Leu	missense_variant	Exon 9 of 32		XP_005259981.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NOTCH3	ENST00000263388.7 link	c.1487C>T	p.Pro496Leu	missense_variant	Exon 9 of 33	1	NM_000435.3	ENSP00000263388.1		Q9UM47
NOTCH3	ENST00000601011.1 link	c.1484C>T	p.Pro495Leu	missense_variant	Exon 9 of 23	5		ENSP00000473138.1		M0R3C9

Frequencies

GnomAD3 genomes

AF:

0.0122

AC:

1862

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00377

Gnomad AMI

AF:

0.0471

Gnomad AMR

AF:

0.0147

Gnomad ASJ

AF:

0.0585

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00145

Gnomad FIN

AF:

0.00320

Gnomad MID

AF:

0.0222

Gnomad NFE

AF:

0.0169

Gnomad OTH

AF:

0.0182

GnomAD2 exomes

AF:

0.0122

AC:

2765

AN:

226228

AF XY:

0.0124

show subpopulations

Gnomad AFR exome

AF:

0.00292

Gnomad AMR exome

AF:

0.00953

Gnomad ASJ exome

AF:

0.0560

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00246

Gnomad NFE exome

AF:

0.0170

Gnomad OTH exome

AF:

0.0179

GnomAD4 exome

AF:

0.0161

AC:

23232

AN:

1443752

Hom.:

264

Cov.:

AF XY:

0.0158

AC XY:

11339

AN XY:

716594

show subpopulations

African (AFR)

AF:

0.00250

AC:

AN:

33244

American (AMR)

AF:

0.00985

AC:

421

AN:

42724

Ashkenazi Jewish (ASJ)

AF:

0.0594

AC:

1528

AN:

25708

East Asian (EAS)

AF:

0.0000763

AC:

AN:

39298

South Asian (SAS)

AF:

0.00160

AC:

134

AN:

83536

European-Finnish (FIN)

AF:

0.00361

AC:

187

AN:

51826

Middle Eastern (MID)

AF:

0.00765

AC:

AN:

5748

European-Non Finnish (NFE)

AF:

0.0180

AC:

19830

AN:

1102016

Other (OTH)

AF:

0.0168

AC:

1002

AN:

59652

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

1093

2187

3280

4374

5467

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

764

1528

2292

3056

3820

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0122

AC:

1862

AN:

152256

Hom.:

Cov.:

AF XY:

0.0114

AC XY:

849

AN XY:

74450

show subpopulations

African (AFR)

AF:

0.00375

AC:

156

AN:

41550

American (AMR)

AF:

0.0147

AC:

225

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.0585

AC:

203

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00145

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00320

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.0204

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0169

AC:

1150

AN:

68004

Other (OTH)

AF:

0.0180

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

194

292

389

486

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0162

Hom.:

Bravo

AF:

0.0136

TwinsUK

AF:

0.0121

AC:

ALSPAC

AF:

0.0161

AC:

ESP6500AA

AF:

0.00386

AC:

ESP6500EA

AF:

0.0215

AC:

185

ExAC

AF:

0.0101

AC:

1220

Asia WGS

AF:

0.00260

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:11

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:6

May 05, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 26894465) -

Nov 18, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Jan 22, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

NOTCH3: BS1, BS2 -

not specified

Benign:3

Genome Diagnostics Laboratory, Amsterdam University Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jun 02, 2021

Athena Diagnostics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

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

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Lateral meningocele syndrome;C3809084:Myofibromatosis, infantile, 2;C4551768:Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1

Benign:1

Jan 17, 2022

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.10

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.82

D;D

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Uncertain

0.95

LIST_S2

Pathogenic

0.98

D;D

MetaRNN

Benign

0.0056

T;T

MetaSVM

Uncertain

0.58

MutationAssessor

Benign

1.6

L;.

PhyloP100

3.8

PrimateAI

Uncertain

0.57

PROVEAN

Pathogenic

-8.1

D;.

REVEL

Uncertain

0.56

Sift

Uncertain

0.0090

D;.

Sift4G

Uncertain

0.044

D;T

Polyphen

0.99

D;.

Vest4

0.34

MPC

1.0

ClinPred

0.043

GERP RS

5.0

Varity_R

0.30

gMVP

0.77

Mutation Taster

=88/12

polymorphism (auto)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over