9-136514511-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP2PP3BS2

The NM_017617.5(NOTCH1):c.2206G>A(p.Gly736Arg) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000438 in 1,576,476 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

NOTCH1
NM_017617.5 missense, splice_region

Scores

Splicing: ADA: 0.9418

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:1

Conservation

PhyloP100: 5.65

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 links:

LOC124902310 (HGNC:):

LOC124902310 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP2

Missense variant where missense usually causes diseases, NOTCH1

PP3

MetaRNN computational evidence supports a deleterious effect, 0.781

BS2

High AC in GnomAd at 20 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
NOTCH1	NM_017617.5 linkuse as main transcript	c.2206G>A	p.Gly736Arg	missense_variant, splice_region_variant	13/34	ENST00000651671.1
LOC124902310	XR_007061865.1 linkuse as main transcript	n.507+4532C>T		intron_variant, non_coding_transcript_variant
NOTCH1	XM_011518717.3 linkuse as main transcript	c.1483G>A	p.Gly495Arg	missense_variant, splice_region_variant	10/31

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NOTCH1	ENST00000651671.1 linkuse as main transcript	c.2206G>A	p.Gly736Arg	missense_variant, splice_region_variant	13/34		NM_017617.5	P1

Frequencies

GnomAD3 genomes

AF:

0.000131

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000289

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000421

AC:

AN:

190032

Hom.:

AF XY:

0.00000975

AC XY:

AN XY:

102556

show subpopulations

Gnomad AFR exome

AF:

0.000352

Gnomad AMR exome

AF:

0.0000365

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000368

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000344

AC:

AN:

1424124

Hom.:

Cov.:

AF XY:

0.0000326

AC XY:

AN XY:

705138

show subpopulations

Gnomad4 AFR exome

AF:

0.000272

Gnomad4 AMR exome

AF:

0.0000262

Gnomad4 ASJ exome

AF:

0.0000394

Gnomad4 EAS exome

AF:

0.000157

Gnomad4 SAS exome

AF:

0.0000245

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000256

Gnomad4 OTH exome

AF:

0.0000338

GnomAD4 genome

AF:

0.000131

AC:

AN:

152352

Hom.:

Cov.:

AF XY:

0.0000805

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.000289

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000546

Hom.:

Bravo

AF:

0.000159

ESP6500AA

AF:

0.00100

AC:

ESP6500EA

AF:

0.000120

AC:

ExAC

AF:

0.0000420

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:5Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario	Aug 10, 2021	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	May 27, 2022	The c.2206G>A (p.G736R) alteration is located in exon 13 (coding exon 13) of the NOTCH1 gene. This alteration results from a G to A substitution at nucleotide position 2206, causing the glycine (G) at amino acid position 736 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

NOTCH1-related disorder

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Feb 08, 2023

The NOTCH1 c.2206G>A variant is predicted to result in the amino acid substitution p.Gly736Arg. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.030% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/9-139408963-C-T). Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Oct 07, 2021

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Reported in ClinVar (ClinVar Variant ID# 432247; Landrum et al., 2016); This variant is associated with the following publications: (PMID: 26582918) -

Adams-Oliver syndrome 5

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jan 02, 2024

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 736 of the NOTCH1 protein (p.Gly736Arg). This variant is present in population databases (rs201662530, gnomAD 0.03%). 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: 432247). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. 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. -

Connective tissue disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Center for Human Genetics, Inc, Center for Human Genetics, Inc

Nov 01, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.28

BayesDel_addAF

Uncertain

0.017

BayesDel_noAF

Uncertain

0.10

Cadd

Uncertain

Dann

Uncertain

1.0

DEOGEN2

Pathogenic

0.81

Eigen

Uncertain

0.25

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.89

M_CAP

Uncertain

0.24

MetaRNN

Pathogenic

0.78

MetaSVM

Uncertain

0.16

MutationAssessor

Uncertain

2.3

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-4.7

REVEL

Pathogenic

0.70

Sift

Uncertain

0.0050

Sift4G

Benign

0.20

Polyphen

0.28

Vest4

0.84

MutPred

0.75

Loss of ubiquitination at K738 (P = 0.0853);

MVP

0.90

MPC

0.59

ClinPred

0.49

GERP RS

5.2

Varity_R

0.53

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.94

dbscSNV1_RF

Benign

0.50

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over