rs587609362

Positions:

chr1-119926509-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_024408.4(NOTCH2):c.3995G>A(p.Arg1332His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000493 in 1,601,182 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign 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. R1332C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

NOTCH2
NM_024408.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3O:1

Conservation

PhyloP100: 2.58

Variant links:

Genes affected

NOTCH2 (HGNC:7882): (notch receptor 2) This gene encodes a member of the Notch family. Members of this Type 1 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 family members play a role in a variety of developmental processes by controlling cell fate decisions. The Notch signaling network is an evolutionarily conserved intercellular signaling pathway which regulates interactions between physically adjacent cells. In Drosophilia, notch interaction with its cell-bound ligands (delta, serrate) establishes an intercellular signaling pathway that plays a key role in development. Homologues of the notch-ligands have also been identified in human, but precise interactions between these ligands and the human notch homologues remain to be determined. This protein is cleaved in the trans-Golgi network, and presented on the cell surface as a heterodimer. This protein functions as a receptor for membrane bound ligands, and may play a role in vascular, renal and hepatic development. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2011]

NOTCH2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2

Missense variant where missense usually causes diseases, NOTCH2

BP4

Computational evidence support a benign effect (MetaRNN=0.24611232).

BS2

High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NOTCH2	NM_024408.4 linkuse as main transcript	c.3995G>A	p.Arg1332His	missense_variant	24/34	ENST00000256646.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NOTCH2	ENST00000256646.7 linkuse as main transcript	c.3995G>A	p.Arg1332His	missense_variant	24/34	1	NM_024408.4	P1

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000429

AC:

AN:

233044

Hom.:

AF XY:

0.0000479

AC XY:

AN XY:

125172

show subpopulations

Gnomad AFR exome

AF:

0.000415

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:

0.0000975

Gnomad NFE exome

AF:

0.0000194

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000449

AC:

AN:

1448912

Hom.:

Cov.:

AF XY:

0.0000445

AC XY:

AN XY:

719236

show subpopulations

Gnomad4 AFR exome

AF:

0.000360

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000119

Gnomad4 FIN exome

AF:

0.0000761

Gnomad4 NFE exome

AF:

0.0000398

Gnomad4 OTH exome

AF:

0.0000334

GnomAD4 genome

AF:

0.0000919

AC:

AN:

152270

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000772

Hom.:

Bravo

AF:

0.000125

ExAC

AF:

0.0000577

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hajdu-Cheney syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jan 29, 2024

This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 1332 of the NOTCH2 protein (p.Arg1332His). This variant is present in population databases (rs587609362, gnomAD 0.03%). This missense change has been observed in individual(s) with clinical features of Alagille syndrome (PMID: 28776642). ClinVar contains an entry for this variant (Variation ID: 134973). 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) performed at Invitae indicates that this missense variant is not expected to disrupt NOTCH2 protein function with a negative predictive value of 95%. 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. -

NOTCH2-related disorder

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Oct 04, 2023

The NOTCH2 c.3995G>A variant is predicted to result in the amino acid substitution p.Arg1332His. This variant has been reported in the heterozygous state in an infant with neonatal cholestasis, but no other features of Allagille syndrome (Stalke et al. 2018. PubMed ID: 28776642). This variant is reported in 0.030% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/1-120469132-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. -

Hajdu-Cheney syndrome;C1857761:Alagille syndrome due to a NOTCH2 point mutation

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Apr 14, 2022

- -

not specified

Other:1

not provided, no classification provided

reference population

ITMI

Sep 19, 2013

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.26

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.47

Eigen

Benign

-0.21

Eigen_PC

Benign

-0.045

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.80

M_CAP

Benign

0.045

MetaRNN

Benign

0.25

MetaSVM

Benign

-0.75

MutationAssessor

Benign

0.19

MutationTaster

Benign

0.95

PrimateAI

Benign

0.26

PROVEAN

Benign

-1.2

REVEL

Benign

0.23

Sift

Benign

0.15

Sift4G

Benign

0.23

Polyphen

0.0060

Vest4

0.29

MVP

0.74

MPC

0.71

ClinPred

0.055

GERP RS

2.5

Varity_R

0.028

gMVP

0.14

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