19-15162483-C-A

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_000435.3(NOTCH3):c.5895G>T(p.Lys1965Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,260 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. K1965K) has been classified as Likely benign.

Frequency

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

Consequence

NOTCH3
NM_000435.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0680

Publications

0 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: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NOTCH3	NM_000435.3 link	c.5895G>T	p.Lys1965Asn	missense_variant	Exon 32 of 33	ENST00000263388.7	NP_000426.2	Q9UM47
NOTCH3	XM_005259924.5 link	c.5739G>T	p.Lys1913Asn	missense_variant	Exon 31 of 32		XP_005259981.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NOTCH3	ENST00000263388.7 link	c.5895G>T	p.Lys1965Asn	missense_variant	Exon 32 of 33	1	NM_000435.3	ENSP00000263388.1	Q9UM47
NOTCH3	ENST00000597756.1 link	c.408G>T	p.Lys136Asn	missense_variant	Exon 3 of 3	2		ENSP00000468879.1	M0QX38
NOTCH3	ENST00000595514.1 link	n.*103G>T		non_coding_transcript_exon_variant	Exon 4 of 5	3		ENSP00000470661.1	M0QZN3
NOTCH3	ENST00000595514.1 link	n.*103G>T		3_prime_UTR_variant	Exon 4 of 5	3		ENSP00000470661.1	M0QZN3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152142

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

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74434

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41550

American (AMR)

AF:

0.00

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4812

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2112

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.49

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.26

Eigen

Benign

-0.23

Eigen_PC

Benign

-0.35

FATHMM_MKL

Benign

0.62

LIST_S2

Uncertain

0.95

M_CAP

Benign

0.030

MetaRNN

Uncertain

0.71

MetaSVM

Benign

-0.83

MutationAssessor

Benign

1.1

PhyloP100

-0.068

PrimateAI

Uncertain

0.79

PROVEAN

Uncertain

-4.1

REVEL

Benign

0.23

Sift

Uncertain

0.0060

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.67

MutPred

0.45

Loss of ubiquitination at K1965 (P = 0.0087);

MVP

0.63

MPC

1.4

ClinPred

0.98

GERP RS

-2.8

Varity_R

0.41

gMVP

0.81

Mutation Taster

=48/52

disease causing

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over