Genetic Variant NRG2:p.Ala790Thr (chr5-139848102-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_004883.3(NRG2):c.2368G>A(p.Ala790Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000127 in 1,478,526 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 29)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

NRG2
NM_004883.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.32

Variant links:

Genes affected

NRG2 (HGNC:7998): (neuregulin 2) This gene encodes a novel member of the neuregulin family of growth and differentiation factors. Through interaction with the ERBB family of receptors, this protein induces the growth and differentiation of epithelial, neuronal, glial, and other types of cells. The gene consists of 12 exons and the genomic structure is similar to that of neuregulin 1, another member of the neuregulin family of ligands. The products of these genes mediate distinct biological processes by acting at different sites in tissues and eliciting different biological responses in cells. This gene is located close to the region for demyelinating Charcot-Marie-Tooth disease locus, but is not responsible for this disease. Alternative transcript variants encoding distinct isoforms have been described. [provided by RefSeq, May 2010]

NRG2 links:

ENSG00000250692 (HGNC:):

ENSG00000250692 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.36685267).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NRG2	NM_004883.3 link	c.2368G>A	p.Ala790Thr	missense_variant	Exon 10 of 10	ENST00000361474.6	NP_004874.1	O14511-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NRG2	ENST00000361474.6 link	c.2368G>A	p.Ala790Thr	missense_variant	Exon 10 of 10	1	NM_004883.3	ENSP00000354910.1		O14511-1

Frequencies

GnomAD3 genomes

AF:

0.0000461

AC:

AN:

151720

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000375

AC:

AN:

79990

Hom.:

AF XY:

0.0000218

AC XY:

AN XY:

45902

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:

0.0000694

Gnomad OTH exome

AF:

0.000439

GnomAD4 exome

AF:

0.000136

AC:

181

AN:

1326806

Hom.:

Cov.:

AF XY:

0.000127

AC XY:

AN XY:

654146

show subpopulations

Gnomad4 AFR exome

AF:

0.0000372

Gnomad4 AMR exome

AF:

0.0000376

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:

0.000162

Gnomad4 OTH exome

AF:

0.0000908

GnomAD4 genome

AF:

0.0000461

AC:

AN:

151720

Hom.:

Cov.:

AF XY:

0.0000405

AC XY:

AN XY:

74102

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:

0.000103

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000491

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 19, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2392G>A (p.A798T) alteration is located in exon 11 (coding exon 11) of the NRG2 gene. This alteration results from a G to A substitution at nucleotide position 2392, causing the alanine (A) at amino acid position 798 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

0.22

BayesDel_addAF

Benign

-0.019

BayesDel_noAF

Benign

-0.27

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.33

.;.;T;.;.;.

Eigen

Uncertain

0.29

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.92

D;D;D;D;D;D

M_CAP

Pathogenic

0.86

MetaRNN

Benign

0.37

T;T;T;T;T;T

MetaSVM

Benign

-0.53

MutationAssessor

Benign

1.7

.;.;L;.;.;.

PrimateAI

Pathogenic

0.92

PROVEAN

Benign

-0.22

N;N;N;N;N;N

REVEL

Benign

0.21

Sift

Uncertain

0.0040

D;D;D;D;D;D

Sift4G

Uncertain

0.024

D;D;D;D;T;D

Polyphen

1.0, 1.0, 1.0

.;D;D;.;D;D

Vest4

0.35

MVP

0.59

MPC

1.8

ClinPred

0.62

GERP RS

2.5

Varity_R

0.26

gMVP

0.37

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