chr9-136506531-G-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 4P and 4B. PP3_StrongBS2

The NM_017617.5(NOTCH1):c.4010C>G(p.Pro1337Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000232 in 1,598,006 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P1337S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

NOTCH1
NM_017617.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 7.55

Publications

0 publications found

Variant links:

Genes affected

NOTCH1 (HGNC:7881): (notch receptor 1) This gene encodes a member of the NOTCH family of proteins. Members of this Type I transmembrane protein family share structural characteristics including an extracellular domain consisting of multiple epidermal growth factor-like (EGF) repeats, and an intracellular domain consisting of multiple different domain types. Notch signaling is an evolutionarily conserved intercellular signaling pathway that regulates interactions between physically adjacent cells through binding of Notch family receptors to their cognate ligands. The encoded preproprotein is proteolytically processed in the trans-Golgi network to generate two polypeptide chains that heterodimerize to form the mature cell-surface receptor. This receptor plays a role in the development of numerous cell and tissue types. Mutations in this gene are associated with aortic valve disease, Adams-Oliver syndrome, T-cell acute lymphoblastic leukemia, chronic lymphocytic leukemia, and head and neck squamous cell carcinoma. [provided by RefSeq, Jan 2016]

NOTCH1 Gene-Disease associations (from GenCC):

Adams-Oliver syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Illumina, Orphanet
Adams-Oliver syndrome 5
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
aortic valve disease 1
Inheritance: AD Classification: STRONG Submitted by: G2P, PanelApp Australia
connective tissue disorder
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
leukodystrophy
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
familial bicuspid aortic valve
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
familial thoracic aortic aneurysm and aortic dissection
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

NOTCH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.95

BS2

High AC in GnomAdExome4 at 35 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017617.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	NOTCH1	NM_017617.5	MANE Select	c.4010C>G	p.Pro1337Arg	missense	Exon 24 of 34	NP_060087.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
NOTCH1	ENST00000651671.1	MANE Select	c.4010C>G	p.Pro1337Arg	missense	Exon 24 of 34	ENSP00000498587.1
NOTCH1	ENST00000680133.1		c.3896C>G	p.Pro1299Arg	missense	Exon 23 of 33	ENSP00000505319.1
NOTCH1	ENST00000680668.1		c.3896C>G	p.Pro1299Arg	missense	Exon 23 of 33	ENSP00000506336.1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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

GnomAD2 exomes

AF:

0.00

AC:

AN:

222790

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:

0.0000242

AC:

AN:

1445856

Hom.:

Cov.:

AF XY:

0.0000209

AC XY:

AN XY:

717808

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33252

American (AMR)

AF:

0.00

AC:

AN:

42838

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25846

East Asian (EAS)

AF:

0.00

AC:

AN:

39150

South Asian (SAS)

AF:

0.00

AC:

AN:

83776

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50996

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4456

European-Non Finnish (NFE)

AF:

0.0000298

AC:

AN:

1105874

Other (OTH)

AF:

0.0000335

AC:

AN:

59668

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152150

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74336

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41428

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.600

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Dec 15, 2021

AiLife Diagnostics, AiLife Diagnostics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Jan 31, 2025

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Identified in a proband from a Heritable Thoracic Aortic Aneurysms or Dissections (HTAD) cohort in the published literature (PMID: 32748548); Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 32748548)

Adams-Oliver syndrome 5

Uncertain:2

Mar 15, 2022

Genome-Nilou Lab

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Oct 07, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with arginine, which is basic and polar, at codon 1337 of the NOTCH1 protein (p.Pro1337Arg). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with NOTCH1-related conditions. ClinVar contains an entry for this variant (Variation ID: 423102). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt NOTCH1 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Familial thoracic aortic aneurysm and aortic dissection

Uncertain:1

Jul 05, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.P1337R variant (also known as c.4010C>G), located in coding exon 24 of the NOTCH1 gene, results from a C to G substitution at nucleotide position 4010. The proline at codon 1337 is replaced by arginine, an amino acid with dissimilar properties. This alteration has been reported in a hereditable thoracic aortic aneurysm cohort; however, clinical details were limited (Musfee FI et al. Mol Genet Genomic Med, 2020 10;8:e1406). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

Aortic valve disease 1

Uncertain:1

Mar 15, 2022

Genome-Nilou Lab

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.010

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.81

Eigen

Uncertain

0.65

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Benign

0.83

M_CAP

Pathogenic

0.36

MetaRNN

Pathogenic

0.95

MetaSVM

Uncertain

0.67

MutationAssessor

Benign

1.6

PhyloP100

7.5

PrimateAI

Uncertain

0.65

PROVEAN

Pathogenic

-5.9

REVEL

Pathogenic

0.77

Sift

Uncertain

0.011

Sift4G

Uncertain

0.060

Polyphen

0.97

Vest4

0.84

MutPred

0.73

Gain of MoRF binding (P = 0.0335)

MVP

0.74

MPC

1.0

ClinPred

0.99

GERP RS

4.6

Varity_R

0.61

Mutation Taster

=27/73

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over