rs775267348

Variant names:

• chr19-15192020-G-A
• rs775267348
• NM_000435.3:c.619C>T

Your query was ambiguous. Multiple possible variants found:

• chr19-15192020-G-A
• chr19-15192020-G-C

Variant summary

Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PM1 PP3_Strong PP5_Very_Strong

The NM_000435.3(NOTCH3):​c.619C>T​(p.Arg207Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000062 in 1,613,076 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 Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R207H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000062 (0 hom.)
• Consequence: NOTCH3 NM_000435.3 missense
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:13
• Conservation: PhyloP100: 4.81
• Publications: 12 publications found

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: AD, AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Laboratory for Molecular Medicine, Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
• lateral meningocele syndrome

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
• 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

ACMG classification

Our verdict: Pathogenic. The variant received 14 ACMG points.

• PM1: In a hotspot region, there are 10 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 4 uncertain in NM_000435.3
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.959
• PP5: Variant 19-15192020-G-A is Pathogenic according to our data. Variant chr19-15192020-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 447862.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000435.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NOTCH3	NM_000435.3	MANE Select	c.619C>T	p.Arg207Cys	missense	Exon 4 of 33	NP_000426.2	Q9UM47

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NOTCH3	ENST00000263388.7	TSL:1 MANE Select	c.619C>T	p.Arg207Cys	missense	Exon 4 of 33	ENSP00000263388.1	Q9UM47
	NOTCH3	ENST00000931534.1		c.619C>T	p.Arg207Cys	missense	Exon 4 of 34	ENSP00000601593.1
	NOTCH3	ENST00000931532.1		c.598C>T	p.Arg200Cys	missense	Exon 4 of 32	ENSP00000601591.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152186 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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: 0.00000799 AC: 2 AN: 250308 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: 0.0000177

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000616 AC: 9 AN: 1460890 Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5 AN XY: 726784

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44586

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39688

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52678

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000630 AC: 7 AN: 1111940

Other (OTH) AF: 0.00 AC: 0 AN: 60378

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152186 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74338

African (AFR) AF: 0.00 AC: 0 AN: 41452

American (AMR) AF: 0.0000655 AC: 1 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5186

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68042

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.000411 Hom.: 0

Bravo AF: 0.0000189

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Pathogenic/Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
6	-	-	not provided (6)
4	-	-	Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1 (4)
1	-	-	Cerebral arteriopathy with subcortical infarcts and leukoencephalopathy (1)
1	-	-	Lateral meningocele syndrome;C3809084:Myofibromatosis, infantile, 2;C4551768:Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1 (1)
1	-	-	NOTCH3-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.020
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.73	D
Eigen	Uncertain	0.38
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.93	D
M_CAP	Pathogenic	0.39	D
MetaRNN	Pathogenic	0.96	D
MetaSVM	Uncertain	0.46	D
MutationAssessor	Benign	1.4	L
PhyloP100		4.8
PrimateAI	Benign	0.47	T
PROVEAN	Uncertain	-3.5	D
REVEL	Pathogenic	0.78
Sift	Benign	0.12	T
Sift4G	Uncertain	0.017	D
Polyphen		0.99	D
Vest4		0.87
MutPred		0.82		Gain of glycosylation at T211 (P = 0.1171)
MVP		1.0
MPC		1.2
ClinPred		0.94	D
GERP RS		4.3
Varity_R		0.26
gMVP		0.62
Mutation Taster		=19/81	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs775267348; hg19: chr19-15302831;