Variant 19-15192218-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PM5

The NM_000435.3(NOTCH3):c.421C>A(p.Arg141Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,609,072 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R141C) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NOTCH3
NM_000435.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.57

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:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1

In a disulfide_bond (size 16) in uniprot entity NOTC3_HUMAN there are 18 pathogenic changes around while only 0 benign (100%) in NM_000435.3

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr19-15192218-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NOTCH3	NM_000435.3 link	c.421C>A	p.Arg141Ser	missense_variant	4/33	ENST00000263388.7	NP_000426.2	Q9UM47
NOTCH3	XM_005259924.5 link	c.421C>A	p.Arg141Ser	missense_variant	4/32		XP_005259981.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NOTCH3	ENST00000263388.7 link	c.421C>A	p.Arg141Ser	missense_variant	4/33	1	NM_000435.3	ENSP00000263388.1		Q9UM47
NOTCH3	ENST00000601011.1 link	c.418C>A	p.Arg140Ser	missense_variant	4/23	5		ENSP00000473138.1		M0R3C9

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1456966

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724556

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152106

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74308

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

-0.070

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.23

T;T

Eigen

Benign

-0.32

Eigen_PC

Benign

-0.067

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.50

T;T

M_CAP

Uncertain

0.29

MetaRNN

Uncertain

0.43

T;T

MetaSVM

Uncertain

0.011

MutationAssessor

Benign

-0.82

N;.

PrimateAI

Benign

0.48

PROVEAN

Benign

-1.4

N;.

REVEL

Uncertain

0.58

Sift

Benign

1.0

T;.

Sift4G

Benign

1.0

T;T

Polyphen

0.41

B;.

Vest4

0.50

MutPred

0.47

Gain of sheet (P = 0.1208);.;

MVP

0.99

MPC

1.3

ClinPred

0.59

GERP RS

5.0

Varity_R

0.20

gMVP

0.43

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

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over