rs146115536

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 5P and 3B. PM2PM5PP2BP4_ModerateBS1_Supporting

The NM_005419.4(STAT2):c.1301C>T(p.Thr434Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000173 in 1,614,014 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. T434R) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

STAT2
NM_005419.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.410

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 Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr12-56349466-G-C is described in ClinVar as [Likely_risk_allele]. Clinvar id is 2428770.Status of the report is no_assertion_criteria_provided, 0 stars. We mark this variant Likely_pathogenic, oryginal submission is: [Likely_risk_allele].

PP2

Missense variant where missense usually causes diseases, STAT2

BP4

Computational evidence support a benign effect (MetaRNN=0.2179882).

BS1

Variant frequency is greater than expected in population eas. gnomad4_exome allele frequency = 0.000184 (269/1461890) while in subpopulation EAS AF= 0.000327 (13/39700). AF 95% confidence interval is 0.000198. There are 0 homozygotes in gnomad4_exome. There are 120 alleles in male gnomad4_exome subpopulation. Median coverage is 32. 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/exons	MANE	UniProt
STAT2	NM_005419.4 linkuse as main transcript	c.1301C>T	p.Thr434Met	missense_variant	15/24	ENST00000314128.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
STAT2	ENST00000314128.9 linkuse as main transcript	c.1301C>T	p.Thr434Met	missense_variant	15/24	1	NM_005419.4	P2	P52630-3

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000795

AC:

AN:

251476

Hom.:

AF XY:

0.0000736

AC XY:

AN XY:

135910

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000217

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000105

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000184

AC:

269

AN:

1461890

Hom.:

Cov.:

AF XY:

0.000165

AC XY:

120

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.000327

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000221

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152124

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74300

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000887

Hom.:

Bravo

AF:

0.0000869

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

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

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Aug 12, 2022

This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 434 of the STAT2 protein (p.Thr434Met). This variant is present in population databases (rs146115536, 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: 542347). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The methionine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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

0.083

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.31

Cadd

Benign

Dann

Benign

0.97

DEOGEN2

Uncertain

0.42

T;.;.

Eigen

Benign

-0.84

Eigen_PC

Benign

-0.84

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.72

T;T;T

M_CAP

Benign

0.082

MetaRNN

Benign

0.22

T;T;T

MetaSVM

Benign

-0.71

MutationAssessor

Benign

1.2

L;.;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.32

PROVEAN

Benign

-1.6

N;N;N

REVEL

Benign

0.15

Sift

Benign

0.036

D;D;D

Sift4G

Benign

0.084

T;T;T

Polyphen

0.52

P;.;P

Vest4

0.26

MVP

0.78

MPC

0.57

ClinPred

0.045

GERP RS

0.53

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.031

gMVP

0.53

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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