chr9-136513527-C-A

Position:

chr9-136513527-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM2PP2PP3BP6

The NM_017617.5(NOTCH1):c.2218G>T(p.Asp740Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,698 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D740N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

NOTCH1
NM_017617.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.763

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 Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), NOTCH1. . Trascript score misZ 3.6761 (greater than threshold 3.09). GenCC has associacion of gene with familial bicuspid aortic valve, familial thoracic aortic aneurysm and aortic dissection, Adams-Oliver syndrome, connective tissue disorder, Adams-Oliver syndrome 5, aortic valve disease 1.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.795

BP6

Variant 9-136513527-C-A is Benign according to our data. Variant chr9-136513527-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1787871.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
NOTCH1	NM_017617.5 linkuse as main transcript	c.2218G>T	p.Asp740Tyr	missense_variant	14/34	ENST00000651671.1
LOC124902310	XR_007061865.1 linkuse as main transcript	n.507+3548C>A		intron_variant, non_coding_transcript_variant
NOTCH1	XM_011518717.3 linkuse as main transcript	c.1495G>T	p.Asp499Tyr	missense_variant	11/31

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NOTCH1	ENST00000651671.1 linkuse as main transcript	c.2218G>T	p.Asp740Tyr	missense_variant	14/34		NM_017617.5	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000404

AC:

AN:

247828

Hom.:

AF XY:

0.00000741

AC XY:

AN XY:

135032

show subpopulations

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000893

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460698

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726638

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 09, 2022

The p.D740Y variant (also known as c.2218G>T), located in coding exon 14 of the NOTCH1 gene, results from a G to T substitution at nucleotide position 2218. The aspartic acid at codon 740 is replaced by tyrosine, an amino acid with highly dissimilar properties. This amino acid position is conserved. 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. -

Adams-Oliver syndrome 5

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jun 01, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Uncertain

0.091

BayesDel_noAF

Benign

-0.11

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Uncertain

0.43

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.30

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.87

M_CAP

Uncertain

0.20

MetaRNN

Pathogenic

0.79

MetaSVM

Uncertain

-0.094

MutationAssessor

Benign

0.90

MutationTaster

Benign

0.99

PrimateAI

Benign

0.44

PROVEAN

Benign

-1.2

REVEL

Pathogenic

0.65

Sift

Benign

1.0

Sift4G

Benign

0.17

Polyphen

0.60

Vest4

0.76

MutPred

0.64

Loss of disorder (P = 0.0351);

MVP

0.93

MPC

0.90

ClinPred

0.43

GERP RS

2.9

Varity_R

0.093

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

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