20-10641598-G-A

Position:

chr20-10641598-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_ModerateBP6BP7BS1BS2

The NM_000214.3(JAG1):c.2778C>T(p.Phe926=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00114 in 1,614,160 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0011 ( 2 hom. )

Consequence

JAG1
NM_000214.3 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7

Conservation

PhyloP100: -0.120

Variant links:

Genes affected

JAG1 (HGNC:6188): (jagged canonical Notch ligand 1) The jagged 1 protein encoded by JAG1 is the human homolog of the Drosophilia jagged protein. Human jagged 1 is the ligand for the receptor notch 1, the latter is involved in signaling processes. Mutations that alter the jagged 1 protein cause Alagille syndrome. Jagged 1 signalling through notch 1 has also been shown to play a role in hematopoiesis. [provided by RefSeq, Nov 2019]

JAG1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.45).

BP6

Variant 20-10641598-G-A is Benign according to our data. Variant chr20-10641598-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 263781.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=2, Uncertain_significance=1}. Variant chr20-10641598-G-A is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-0.12 with no splicing effect.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.00108 (164/152366) while in subpopulation AMR AF= 0.00202 (31/15310). AF 95% confidence interval is 0.00147. There are 0 homozygotes in gnomad4. There are 83 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High AC in GnomAd4 at 164 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
JAG1	NM_000214.3 linkuse as main transcript	c.2778C>T	p.Phe926=	synonymous_variant	23/26	ENST00000254958.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
JAG1	ENST00000254958.10 linkuse as main transcript	c.2778C>T	p.Phe926=	synonymous_variant	23/26	1	NM_000214.3	P1	P78504-1
JAG1	ENST00000423891.6 linkuse as main transcript	n.2644C>T		non_coding_transcript_exon_variant	21/25	2
JAG1	ENST00000617965.2 linkuse as main transcript	n.3367C>T		non_coding_transcript_exon_variant	17/17	5

Frequencies

GnomAD3 genomes

AF:

0.00108

AC:

164

AN:

152248

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000265

Gnomad AMI

AF:

0.0329

Gnomad AMR

AF:

0.00203

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00103

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00125

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000724

AC:

182

AN:

251248

Hom.:

AF XY:

0.000810

AC XY:

110

AN XY:

135832

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.000347

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000915

Gnomad FIN exome

AF:

0.0000928

Gnomad NFE exome

AF:

0.00117

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.00115

AC:

1679

AN:

1461794

Hom.:

Cov.:

AF XY:

0.00116

AC XY:

843

AN XY:

727224

show subpopulations

Gnomad4 AFR exome

AF:

0.0000896

Gnomad4 AMR exome

AF:

0.000425

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000858

Gnomad4 FIN exome

AF:

0.000225

Gnomad4 NFE exome

AF:

0.00134

Gnomad4 OTH exome

AF:

0.00129

GnomAD4 genome

AF:

0.00108

AC:

164

AN:

152366

Hom.:

Cov.:

AF XY:

0.00111

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.000264

Gnomad4 AMR

AF:

0.00202

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.00125

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000959

Hom.:

Bravo

AF:

0.00143

EpiCase

AF:

0.000818

EpiControl

AF:

0.00130

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:7

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:4

Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Aug 13, 2018	This variant is associated with the following publications: (PMID: 22040217) -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Mar 01, 2023	JAG1: BP4, BP7 -
Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Dec 11, 2017	- -

Isolated Nonsyndromic Congenital Heart Disease

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 28, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to rule this variant out of causing disease. Therefore, this variant is classified as benign. -

Alagille syndrome due to a JAG1 point mutation

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 30, 2024

- -

Cardiovascular phenotype

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 26, 2016

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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.45

CADD

Benign

3.3

DANN

Benign

0.89

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