12-56349466-G-C

Variant names:

• chr12-56349466-G-C
• rs146115536
• NM_005419.4:c.1301C>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_005419.4(STAT2):​c.1301C>G​(p.Thr434Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely risk allele (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T434M) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 31)
• Consequence: STAT2 NM_005419.4 missense
• Clinical Significance: Likely risk allele no assertion criteria provided P:1
• Conservation: PhyloP100: -0.410
• Publications: 1 publications found

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 Gene-Disease associations (from GenCC):

• primary immunodeficiency with post-measles-mumps-rubella vaccine viral infection

  Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, G2P
• pseudo-TORCH syndrome 3

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.39566714).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STAT2	NM_005419.4	c.1301C>G	p.Thr434Arg	missense_variant	Exon 15 of 24	ENST00000314128.9	NP_005410.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STAT2	ENST00000314128.9	c.1301C>G	p.Thr434Arg	missense_variant	Exon 15 of 24	1	NM_005419.4	ENSP00000315768.4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 31

ClinVar

Significance: Likely risk allele

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Susceptibility to severe COVID-19 Pathogenic:1

Jul 01, 2022

Al Jalila Children’s Genomics Center, Al Jalila Childrens Speciality Hospital

Significance: Likely risk allele

Review Status: no assertion criteria provided

Collection Method: research

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Uncertain	0.041	T
BayesDel_noAF	Benign	-0.18
CADD	Benign	17
DANN	Uncertain	0.98
DEOGEN2	Benign	0.22	T;.;.
Eigen	Benign	-0.59
Eigen_PC	Benign	-0.67
FATHMM_MKL	Benign	0.23	N
LIST_S2	Benign	0.82	T;T;T
M_CAP	Uncertain	0.19	D
MetaRNN	Benign	0.40	T;T;T
MetaSVM	Benign	-0.31	T
MutationAssessor	Benign	1.9	L;.;.
PhyloP100		-0.41
PrimateAI	Benign	0.34	T
PROVEAN	Benign	-0.80	N;N;N
REVEL	Uncertain	0.52
Sift	Uncertain	0.022	D;D;D
Sift4G	Benign	0.18	T;T;D
Polyphen		0.97	D;.;P
Vest4		0.39
MutPred		0.62		Loss of ubiquitination at K436 (P = 0.0418);.;.;
MVP		0.79
MPC		1.1
ClinPred		0.34	T
GERP RS		0.53
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.14
gMVP		0.69
Mutation Taster		=72/28	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.17		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs146115536; hg19: chr12-56743250;