chr12-56356456-A-C

Variant names:

• chr12-56356456-A-C
• rs757152982
• NM_005419.4:c.116T>G

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_005419.4(STAT2):​c.116T>G​(p.Ile39Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic 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. I39T) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 31)
• Consequence: STAT2 NM_005419.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.84
• Publications: 0 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: Likely_pathogenic. The variant received 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.973

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005419.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	STAT2	NM_005419.4	MANE Select	c.116T>G	p.Ile39Ser	missense	Exon 2 of 24	NP_005410.1
	STAT2	NM_198332.2		c.116T>G	p.Ile39Ser	missense	Exon 2 of 24	NP_938146.1
	STAT2	NM_001385114.1		c.116T>G	p.Ile39Ser	missense	Exon 2 of 23	NP_001372043.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	STAT2	ENST00000314128.9	TSL:1 MANE Select	c.116T>G	p.Ile39Ser	missense	Exon 2 of 24	ENSP00000315768.4
	STAT2	ENST00000557235.5	TSL:2	c.116T>G	p.Ile39Ser	missense	Exon 2 of 24	ENSP00000450751.1
	STAT2	ENST00000651915.1		c.116T>G	p.Ile39Ser	missense	Exon 2 of 23	ENSP00000498876.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Primary immunodeficiency with post-measles-mumps-rubella vaccine viral infection (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.86
BayesDel_addAF	Pathogenic	0.39	D
BayesDel_noAF	Pathogenic	0.32
CADD	Pathogenic	29
DANN	Uncertain	0.99
DEOGEN2	Benign	0.41	T
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.79
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.88	D
M_CAP	Uncertain	0.17	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Uncertain	0.10	D
MutationAssessor	Pathogenic	3.2	M
PhyloP100		7.8
PrimateAI	Uncertain	0.51	T
PROVEAN	Pathogenic	-4.5	D
REVEL	Pathogenic	0.79
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.95
MutPred		0.87		Gain of disorder (P = 0.0151)
MVP		0.90
MPC		1.5
ClinPred		1.0	D
GERP RS		5.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.95
gMVP		0.88
Mutation Taster		=13/87	disease causing

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

Other links and lift over

dbSNP: rs757152982; hg19: chr12-56750240;