2-190978964-C-T

Variant names:

• chr2-190978964-C-T
• rs745491762
• NM_007315.4:c.1765G>A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP2

The NM_007315.4(STAT1):​c.1765G>A​(p.Ala589Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,614,070 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A589S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: STAT1 NM_007315.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.07
• Publications: 0 publications found

Genes affected

STAT1 (HGNC:11362): (signal transducer and activator of transcription 1) 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. The protein encoded by this gene can be activated by various ligands including interferon-alpha, interferon-gamma, EGF, PDGF and IL6. This protein mediates the expression of a variety of genes, which is thought to be important for cell viability in response to different cell stimuli and pathogens. The protein plays an important role in immune responses to viral, fungal and mycobacterial pathogens. Mutations in this gene are associated with Immunodeficiency 31B, 31A, and 31C. [provided by RefSeq, Jun 2020]

STAT1 Gene-Disease associations (from GenCC):

• autoimmune enteropathy and endocrinopathy - susceptibility to chronic infections syndrome

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Illumina, ClinGen, PanelApp Australia, Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics
• Mendelian susceptibility to mycobacterial diseases due to partial STAT1 deficiency

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), PanelApp Australia, ClinGen, Ambry Genetics
• immunodeficiency 31B

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, Orphanet, G2P, Ambry Genetics

ACMG classification

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

• PP2: Missense variant in the STAT1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 64 curated pathogenic missense variants (we use a threshold of 10). The gene has 19 curated benign missense variants. Gene score misZ: 5.1492 (above the threshold of 3.09). Trascript score misZ: 7.0181 (above the threshold of 3.09). GenCC associations: The gene is linked to Mendelian susceptibility to mycobacterial diseases due to partial STAT1 deficiency, autoimmune enteropathy and endocrinopathy - susceptibility to chronic infections syndrome, immunodeficiency 31B.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007315.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	STAT1	NM_007315.4	MANE Select	c.1765G>A	p.Ala589Thr	missense	Exon 21 of 25	NP_009330.1	P42224-1
	STAT1	NM_001384891.1		c.1801G>A	p.Ala601Thr	missense	Exon 21 of 25	NP_001371820.1
	STAT1	NM_001384886.1		c.1765G>A	p.Ala589Thr	missense	Exon 21 of 25	NP_001371815.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	STAT1	ENST00000361099.8	TSL:1 MANE Select	c.1765G>A	p.Ala589Thr	missense	Exon 21 of 25	ENSP00000354394.4	P42224-1
	STAT1	ENST00000409465.5	TSL:1	c.1765G>A	p.Ala589Thr	missense	Exon 20 of 24	ENSP00000386244.1	P42224-1
	STAT1	ENST00000392322.7	TSL:1	c.1765G>A	p.Ala589Thr	missense	Exon 21 of 23	ENSP00000376136.3	P42224-2

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152200 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000483

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: 0.00

Gnomad OTH AF: 0.000478

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461870 Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3 AN XY: 727240

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39690

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1112010

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152200 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74350

African (AFR) AF: 0.0000483 AC: 2 AN: 41440

American (AMR) AF: 0.00 AC: 0 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5200

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68046

Other (OTH) AF: 0.000478 AC: 1 AN: 2094

Alfa AF: 0.0000434 Hom.: 0

Bravo AF: 0.00000756

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Immunodeficiency 31B;C3279990:Autoimmune enteropathy and endocrinopathy - susceptibility to chronic infections syndrome;C4013950:Mendelian susceptibility to mycobacterial diseases due to partial STAT1 deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.080
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.74	D
Eigen	Benign	-0.43
Eigen_PC	Benign	-0.36
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.85	T
M_CAP	Pathogenic	0.39	D
MetaRNN	Uncertain	0.43	T
MetaSVM	Uncertain	0.45	D
MutationAssessor	Benign	1.9	L
PhyloP100		4.1
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	-1.4	N
REVEL	Uncertain	0.34
Sift	Benign	0.16	T
Sift4G	Benign	0.58	T
Polyphen		0.0020	B
Vest4		0.23
MutPred		0.38		Gain of phosphorylation at A589 (P = 0.023)
MVP		0.89
MPC		1.2
ClinPred		0.46	T
GERP RS		4.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
Varity_R		0.13
gMVP		0.71
Mutation Taster		=70/30	polymorphism

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

Other links and lift over

dbSNP: rs745491762; hg19: chr2-191843690;