chr12-56343471-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_005419.4(STAT2):c.2474G>A(p.Gly825Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,614,122 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 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. G825C) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000059 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000039 ( 1 hom. )

Consequence

STAT2
NM_005419.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.63

Variant links:

Genes affected

STAT2 (HGNC:11363): (signal transducer and activator of transcription 2) The protein encoded by this gene is a member of the STAT protein family. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. In response to interferon (IFN), this protein forms a complex with STAT1 and IFN regulatory factor family protein p48 (ISGF3G), in which this protein acts as a transactivator, but lacks the ability to bind DNA directly. The protein mediates innate antiviral activity. Mutations in this gene result in Immunodeficiency 44. [provided by RefSeq, Aug 2020]

STAT2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.028237581).

BS1

Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.000039 (57/1461868) while in subpopulation AFR AF= 0.000896 (30/33480). AF 95% confidence interval is 0.000644. There are 1 homozygotes in gnomad4_exome. There are 29 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STAT2	NM_005419.4 link	c.2474G>A	p.Gly825Asp	missense_variant	Exon 24 of 24	ENST00000314128.9	NP_005410.1	P52630-3R9QE65

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STAT2	ENST00000314128.9 link	c.2474G>A	p.Gly825Asp	missense_variant	Exon 24 of 24	1	NM_005419.4	ENSP00000315768.4		P52630-3

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251432

Hom.:

AF XY:

0.0000294

AC XY:

AN XY:

135878

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000390

AC:

AN:

1461868

Hom.:

Cov.:

AF XY:

0.0000399

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.000896

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.000331

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152254

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74442

show subpopulations

Gnomad4 AFR

AF:

0.000193

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.00219

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000247

AC:

Asia WGS

AF:

0.00318

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Primary immunodeficiency with post-measles-mumps-rubella vaccine viral infection

Uncertain:1

Dec 16, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 825 of the STAT2 protein (p.Gly825Asp). This variant is present in population databases (rs113083644, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with STAT2-related conditions. ClinVar contains an entry for this variant (Variation ID: 936063). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt STAT2 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.58

CADD

Benign

2.6

DANN

Benign

0.81

DEOGEN2

Benign

0.075

T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.013

LIST_S2

Benign

0.52

T;T

M_CAP

Benign

0.0073

MetaRNN

Benign

0.028

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

L;.

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.80

N;N

REVEL

Benign

0.043

Sift

Benign

0.23

T;T

Sift4G

Benign

0.27

T;T

Polyphen

0.0010

B;.

Vest4

0.062

MVP

0.31

MPC

0.53

ClinPred

0.0093

GERP RS

-2.0

Varity_R

0.082

gMVP

0.20

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