2-190998246-T-A

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 7P and 1B. PM1PM2PM5PP2BP4

The NM_007315.4(STAT1):c.604A>T(p.Met202Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,496 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M202I) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

STAT1
NM_007315.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.51

Publications

1 publications found

Variant links:

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: Ambry Genetics, Labcorp Genetics (formerly Invitae), Illumina, Orphanet
immunodeficiency 31B
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
Mendelian susceptibility to mycobacterial diseases due to partial STAT1 deficiency
Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)

STAT1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM1

In a helix (size 41) in uniprot entity STAT1_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_007315.4

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr2-190998246-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 30087.Status of the report is criteria_provided_single_submitter, 1 stars.

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 immunodeficiency 31B, Mendelian susceptibility to mycobacterial diseases due to partial STAT1 deficiency, autoimmune enteropathy and endocrinopathy - susceptibility to chronic infections syndrome.

BP4

Computational evidence support a benign effect (MetaRNN=0.2872268).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STAT1	NM_007315.4 link	c.604A>T	p.Met202Leu	missense_variant	Exon 8 of 25	ENST00000361099.8	NP_009330.1	P42224-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STAT1	ENST00000361099.8 link	c.604A>T	p.Met202Leu	missense_variant	Exon 8 of 25	1	NM_007315.4	ENSP00000354394.4		P42224-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461496

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727080

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39670

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.0000188

AC:

AN:

53232

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111858

Other (OTH)

AF:

0.00

AC:

AN:

60388

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Uncertain

0.095

BayesDel_noAF

Benign

-0.10

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Uncertain

0.77

D;D;.;.

Eigen

Benign

-0.11

Eigen_PC

Benign

-0.067

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.74

.;T;T;T

M_CAP

Benign

0.070

MetaRNN

Benign

0.29

T;T;T;T

MetaSVM

Benign

-0.80

MutationAssessor

Uncertain

2.0

M;M;M;.

PhyloP100

2.5

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-1.4

N;N;N;N

REVEL

Benign

0.26

Sift

Benign

0.099

T;T;T;T

Sift4G

Benign

0.36

T;T;T;T

Polyphen

0.19

B;B;D;.

Vest4

0.28

MutPred

0.64

Loss of MoRF binding (P = 0.0814);Loss of MoRF binding (P = 0.0814);Loss of MoRF binding (P = 0.0814);.;

MVP

0.74

MPC

1.4

ClinPred

0.58

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.42

gMVP

0.91

Mutation Taster

=16/84

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.15

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over