chr9-136497054-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_017617.5(NOTCH1):c.6685G>A(p.Val2229Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000375 in 1,609,060 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. V2229V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00039 ( 0 hom. )

Consequence

NOTCH1
NM_017617.5 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: 0.0260

Publications

3 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: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.04991281).

BP6

Variant 9-136497054-C-T is Benign according to our data. Variant chr9-136497054-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 264594.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000191 (29/152186) while in subpopulation NFE AF = 0.000338 (23/68036). AF 95% confidence interval is 0.00023. There are 0 homozygotes in GnomAd4. There are 14 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 29 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NOTCH1	NM_017617.5 link	c.6685G>A	p.Val2229Met	missense_variant	Exon 34 of 34	ENST00000651671.1	NP_060087.3	P46531
NOTCH1	XM_011518717.3 link	c.5962G>A	p.Val1988Met	missense_variant	Exon 31 of 31		XP_011517019.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NOTCH1	ENST00000651671.1 link	c.6685G>A	p.Val2229Met	missense_variant	Exon 34 of 34		NM_017617.5	ENSP00000498587.1		P46531

Frequencies

GnomAD3 genomes

AF:

0.000191

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.000338

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000179

AC:

AN:

245566

AF XY:

0.000201

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000581

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000559

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000360

Gnomad OTH exome

AF:

0.000167

GnomAD4 exome

AF:

0.000395

AC:

575

AN:

1456874

Hom.:

Cov.:

AF XY:

0.000369

AC XY:

267

AN XY:

724282

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

33420

American (AMR)

AF:

0.0000448

AC:

AN:

44628

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26038

East Asian (EAS)

AF:

0.0000253

AC:

AN:

39602

South Asian (SAS)

AF:

0.00

AC:

AN:

86156

European-Finnish (FIN)

AF:

0.0000196

AC:

AN:

51090

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.000496

AC:

550

AN:

1109942

Other (OTH)

AF:

0.000282

AC:

AN:

60238

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

Heterozygous variant carriers

112

149

186

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

110

<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:

0.000191

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74344

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41438

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000338

AC:

AN:

68036

Other (OTH)

AF:

0.000478

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.518

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:

0.000381

Hom.:

Bravo

AF:

0.000189

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000473

AC:

ExAC

AF:

0.000140

AC:

EpiCase

AF:

0.000327

EpiControl

AF:

0.000415

ClinVar

Significance: Likely benign

Submissions summary: Benign:12

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:5

Aug 01, 2020

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jan 14, 2021

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 25931334, 24113472) -

Apr 25, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Genome Diagnostics Laboratory, Amsterdam University Medical Center

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

not specified

Benign:2

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Sep 16, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: NOTCH1 c.6685G>A (p.Val2229Met) results in a conservative amino acid change in the encoded protein sequence. Four of four in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00018 in 245566 control chromosomes. The observed variant frequency is approximately 287 fold of the estimated maximal expected allele frequency for a pathogenic variant in NOTCH1 causing Adams-Oliver Syndrome 5 phenotype (6.3e-07). ClinVar contains an entry for this variant (Variation ID: 264594). Based on the evidence outlined above, the variant was classified as likely benign. -

Familial thoracic aortic aneurysm and aortic dissection

Benign:2

Oct 06, 2020

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Oct 08, 2019

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Adams-Oliver syndrome 5

Benign:2

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 15, 2022

Genome-Nilou Lab

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aortic valve disease 1

Benign:1

Mar 15, 2022

Genome-Nilou Lab

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.40

CADD

Benign

0.028

(source)

DANN

Benign

0.78

DEOGEN2

Benign

0.23

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.32

LIST_S2

Benign

0.85

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.050

MetaSVM

Benign

-0.90

MutationAssessor

Benign

-0.13

PhyloP100

0.026

PrimateAI

Benign

0.29

PROVEAN

Benign

0.16

REVEL

Benign

0.19

Sift

Benign

0.30

Sift4G

Benign

0.16

Polyphen

0.025

Vest4

0.094

MVP

0.61

MPC

0.35

ClinPred

0.034

GERP RS

-8.9

Varity_R

0.022

Mutation Taster

=95/5

polymorphism

(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

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over