rs1188569102

Variant summary

Our verdict is Pathogenic. The variant received 13 ACMG points: 13P and 0B. PM1PM2PP3PP5_Very_Strong

The NM_000435.3(NOTCH3):​c.2953C>T​(p.Arg985Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. R985P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

NOTCH3
NM_000435.3 missense

Scores

6
6
7

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:5

Conservation

PhyloP100: 1.36

Publications

12 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 13 ACMG points.

PM1
In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 4 benign, 6 uncertain in NM_000435.3
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.763
PP5
Variant 19-15181002-G-A is Pathogenic according to our data. Variant chr19-15181002-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 447819.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NOTCH3NM_000435.3 linkc.2953C>T p.Arg985Cys missense_variant Exon 18 of 33 ENST00000263388.7 NP_000426.2 Q9UM47
NOTCH3XM_005259924.5 linkc.2797C>T p.Arg933Cys missense_variant Exon 17 of 32 XP_005259981.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NOTCH3ENST00000263388.7 linkc.2953C>T p.Arg985Cys missense_variant Exon 18 of 33 1 NM_000435.3 ENSP00000263388.1 Q9UM47
NOTCH3ENST00000601011.1 linkc.2794C>T p.Arg932Cys missense_variant Exon 17 of 23 5 ENSP00000473138.1 M0R3C9

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1445532
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
717856
African (AFR)
AF:
0.00
AC:
0
AN:
33180
American (AMR)
AF:
0.00
AC:
0
AN:
42364
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25714
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38830
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50832
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5746
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1105304
Other (OTH)
AF:
0.00
AC:
0
AN:
59748
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:3
Mar 24, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 985 of the NOTCH3 protein (p.Arg985Cys). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with cerebral arteriopathy with subcortical infarcts and leukoencephalopathy 1 (CADASIL) (PMID: 9388399, 11755616, 16009764, 19174371, 30311053, 32277177). This variant is also known as c.3031C>T. ClinVar contains an entry for this variant (Variation ID: 447819). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on NOTCH3 protein function. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Nov 13, 2020
Athena Diagnostics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant has not been reported in large, multi-ethnic general populations (http://gnomad.broadinstitute.org). This variant has been identified in at least one individual with clinical features associated with this gene. At Athena Diagnostics, this variant has been found in a single case where an alternate explanation for disease was also identified. This variant alters a critical location within the protein, and is expected to severely affect function and cause disease. Greater than 90% of NOTCH3 pathogenic mutations associated with CADASIL involve the gain or loss of a cysteine residue within the epidermal growth factor (EGF)-like repeat domain (PMID: 32457593, 20301673). -

Aug 27, 2024
Mayo Clinic Laboratories, Mayo Clinic
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PP2, PP4, PM1, PM2_moderate, PS4 -

Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1 Pathogenic:2
Jul 01, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: NOTCH3 c.2953C>T (p.Arg985Cys) results in a non-conservative amino acid change in the encoded protein sequence. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change. The variant was absent in 215298 control chromosomes. c.2953C>T has been observed in multiple individuals affected with Cerebral arteriopathy, autosomal dominant, with subcortical infarcts and leukoencephalopathy, type 1 (Joutel_1997, Peters_2005, Tikka_2009, Mukai_2020). These data indicate that the variant is very likely to be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 9388399, 32277177, 16009764, 19174371). ClinVar contains an entry for this variant (Variation ID: 447819). Based on the evidence outlined above, the variant was classified as pathogenic. -

Apr 12, 2022
MGZ Medical Genetics Center
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Uncertain
0.010
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.80
D;T
Eigen
Benign
-0.064
Eigen_PC
Benign
-0.27
FATHMM_MKL
Benign
0.65
D
LIST_S2
Benign
0.77
T;T
M_CAP
Pathogenic
0.34
D
MetaRNN
Pathogenic
0.76
D;D
MetaSVM
Uncertain
-0.067
T
MutationAssessor
Uncertain
2.4
M;.
PhyloP100
1.4
PrimateAI
Benign
0.25
T
PROVEAN
Pathogenic
-5.0
D;.
REVEL
Pathogenic
0.67
Sift
Uncertain
0.0040
D;.
Sift4G
Uncertain
0.011
D;D
Polyphen
0.99
D;.
Vest4
0.57
MVP
0.99
MPC
0.99
ClinPred
0.95
D
GERP RS
1.6
Varity_R
0.29
gMVP
0.79
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

Publications

Other links and lift over

dbSNP: rs1188569102; hg19: chr19-15291813; COSMIC: COSV54643805; COSMIC: COSV54643805; API