rs1030392985

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_000435.3(NOTCH3):c.3961G>A(p.Gly1321Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000369 in 1,355,430 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)

Exomes 𝑓: 8.3e-7 ( 0 hom. )

Consequence

NOTCH3
NM_000435.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.72

Publications

1 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: Likely_pathogenic. The variant received 6 ACMG points.

PM1

In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 10 uncertain in NM_000435.3

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.863

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NOTCH3	NM_000435.3 link	c.3961G>A	p.Gly1321Arg	missense_variant	Exon 24 of 33	ENST00000263388.7	NP_000426.2	Q9UM47
NOTCH3	XM_005259924.5 link	c.3805G>A	p.Gly1269Arg	missense_variant	Exon 23 of 32		XP_005259981.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NOTCH3	ENST00000263388.7 link	c.3961G>A	p.Gly1321Arg	missense_variant	Exon 24 of 33	1	NM_000435.3	ENSP00000263388.1		Q9UM47
NOTCH3	ENST00000601011.1 link	c.3802G>A	p.Gly1268Arg	missense_variant	Exon 23 of 23	5		ENSP00000473138.1		M0R3C9

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

151842

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000966

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

27176

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

8.31e-7

AC:

AN:

1203588

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

583848

show subpopulations

African (AFR)

AF:

0.0000411

AC:

AN:

24326

American (AMR)

AF:

0.00

AC:

AN:

13434

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

18048

East Asian (EAS)

AF:

0.00

AC:

AN:

26926

South Asian (SAS)

AF:

0.00

AC:

AN:

52762

European-Finnish (FIN)

AF:

0.00

AC:

AN:

27864

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3434

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

987654

Other (OTH)

AF:

0.00

AC:

AN:

49140

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.675

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000263

AC:

AN:

151842

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74140

show subpopulations

African (AFR)

AF:

0.0000966

AC:

AN:

41404

American (AMR)

AF:

0.00

AC:

AN:

15258

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5156

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10544

Middle Eastern (MID)

AF:

0.00

AC:

AN:

312

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67874

Other (OTH)

AF:

0.00

AC:

AN:

2084

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.638

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000712

Hom.:

Bravo

AF:

0.0000302

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Mar 15, 2024

Athena Diagnostics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Available data are insufficient to determine the clinical significance of the variant at this time. The frequency of this variant in the general population is higher than would generally be expected for pathogenic variants in this gene. (http://gnomad.broadinstitute.org) Computational tools predict that this variant is damaging. Greater than 90% of NOTCH3 pathogenic variants associated with CADASIL involve the gain or loss of a cysteine residue within the epidermal growth factor (EGF)-like repeat domain (PMID: 32457593, 20301673). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.31

BayesDel_addAF

Pathogenic

0.32

BayesDel_noAF

Pathogenic

0.22

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.73

D;T

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.95

D;D

M_CAP

Pathogenic

0.81

MetaRNN

Pathogenic

0.86

D;D

MetaSVM

Pathogenic

0.84

MutationAssessor

Pathogenic

4.3

H;.

PhyloP100

5.7

PrimateAI

Pathogenic

0.92

PROVEAN

Pathogenic

-6.1

D;.

REVEL

Pathogenic

0.71

Sift

Uncertain

0.0070

D;.

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;.

Vest4

0.72

MutPred

0.54

Loss of catalytic residue at G1321 (P = 0.0645);.;

MVP

1.0

MPC

2.8

ClinPred

0.99

GERP RS

4.5

Varity_R

0.28

gMVP

0.85

Mutation Taster

=62/38

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over