19-15187273-G-C

Position:

chr19-15187273-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 4P and 3B. PM1PM5BP4BP6BS2_Supporting

The NM_000435.3(NOTCH3):c.1672C>G(p.Arg558Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,613,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R558C) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

NOTCH3
NM_000435.3 missense

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 2.25

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 Uncertain_significance. Variant got 1 ACMG points.

PM1

In a disulfide_bond (size 10) in uniprot entity NOTC3_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_000435.3

PM5

Other missense variant is known to change same aminoacid residue: Variant chr19-15187273-G-A is described in Lovd as [Pathogenic].

BP4

Computational evidence support a benign effect (MetaRNN=0.31056586).

BP6

Variant 19-15187273-G-C is Benign according to our data. Variant chr19-15187273-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 3354942.Status of the report is no_assertion_criteria_provided, 0 stars.

BS2

High AC in GnomAd4 at 5 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NOTCH3	NM_000435.3 linkuse as main transcript	c.1672C>G	p.Arg558Gly	missense_variant	11/33	ENST00000263388.7	NP_000426.2	Q9UM47
NOTCH3	XM_005259924.5 linkuse as main transcript	c.1672C>G	p.Arg558Gly	missense_variant	11/32		XP_005259981.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NOTCH3	ENST00000263388.7 linkuse as main transcript	c.1672C>G	p.Arg558Gly	missense_variant	11/33	1	NM_000435.3	ENSP00000263388.1		Q9UM47
NOTCH3	ENST00000601011.1 linkuse as main transcript	c.1669C>G	p.Arg557Gly	missense_variant	11/23	5		ENSP00000473138.1		M0R3C9

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000865

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000518

AC:

AN:

251034

Hom.:

AF XY:

0.0000368

AC XY:

AN XY:

135824

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000994

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.0000219

AC:

AN:

1461746

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

727188

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000957

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000865

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000111

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

NOTCH3-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Mar 09, 2022

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Uncertain

0.044

BayesDel_noAF

Benign

-0.16

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.59

D;D

Eigen

Benign

-0.28

Eigen_PC

Benign

-0.18

FATHMM_MKL

Benign

0.33

LIST_S2

Benign

0.84

T;T

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.31

T;T

MetaSVM

Uncertain

-0.18

MutationAssessor

Benign

-1.9

N;.

PrimateAI

Benign

0.38

PROVEAN

Benign

-2.2

N;.

REVEL

Uncertain

0.47

Sift

Benign

0.33

T;.

Sift4G

Benign

0.40

T;T

Polyphen

0.15

B;.

Vest4

0.56

MutPred

0.69

Loss of stability (P = 0.0957);.;

MVP

0.94

MPC

0.92

ClinPred

0.070

GERP RS

3.4

Varity_R

0.24

gMVP

0.81

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over