chr21-39391819-G-A

Position:

chr21-39391819-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004627.6(GET1):c.319G>A(p.Ala107Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000235 in 1,613,960 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

GET1
NM_004627.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.50

Variant links:

Genes affected

GET1 (HGNC:12790): (guided entry of tail-anchored proteins factor 1) This gene is located in the candidate region for congenital heart disease (CHD) in Down syndrome (DS). It encodes a basic protein that functions as a receptor that promotes insertion of tail-anchored proteins in the endoplasmic reticulum membrane. This gene is located at a maternally-methylated differentially methylated region (DMR); however, its transcription may be biallelic, not imprinted. Alternative splicing results in different transcript variants. A pseudogene has been defined on chromosome 4. [provided by RefSeq, Apr 2017]

GET1 links:

GET1-SH3BGR (HGNC:54635): (GET1-SH3BGR readthrough) This locus represents naturally occurring readthrough transcription between the neighboring WRB (tryptophan rich basic protein) and SH3BGR (SH3 domain binding glutamate-rich protein) genes on chromosome 21. Readthrough transcripts may encode fusion proteins that shares sequence identity with each individual gene product. [provided by RefSeq, Apr 2017]

GET1-SH3BGR links:

GET1 (HGNC:):

GET1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.25759462).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GET1	NM_004627.6 linkuse as main transcript	c.319G>A	p.Ala107Thr	missense_variant	3/5	ENST00000649170.1	NP_004618.2	O00258-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GET1	ENST00000649170.1 linkuse as main transcript	c.319G>A	p.Ala107Thr	missense_variant	3/5		NM_004627.6	ENSP00000496813.1		O00258-1
GET1-SH3BGR	ENST00000647779.1 linkuse as main transcript	c.319G>A	p.Ala107Thr	missense_variant	3/9			ENSP00000497977.1		A0A3B3ITX9

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251466

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135910

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:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000239

AC:

AN:

1461800

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

727210

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:

0.0000315

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152160

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000847

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 25, 2024

The c.319G>A (p.A107T) alteration is located in exon 3 (coding exon 3) of the WRB gene. This alteration results from a G to A substitution at nucleotide position 319, causing the alanine (A) at amino acid position 107 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.099

.;.;T;T;.;T;.;.

Eigen

Benign

-0.14

Eigen_PC

Benign

-0.081

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.74

T;.;.;T;.;T;T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.26

T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.90

.;.;L;L;.;.;.;.

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-1.7

.;.;N;.;N;N;N;.

REVEL

Benign

0.088

Sift

Benign

0.044

.;.;D;.;T;T;T;.

Sift4G

Benign

0.077

.;.;T;.;T;T;T;.

Polyphen

0.075

.;.;B;B;.;.;.;.

Vest4

0.46, 0.47

MutPred

0.58

.;.;Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);.;.;.;Loss of helix (P = 0.0237);

MVP

0.030

MPC

0.35

ClinPred

0.53

GERP RS

4.4

Varity_R

0.28

gMVP

0.68

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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