2-190995212-T-C

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 3P and 13B. PM1PP2BP4_StrongBP6BS1BS2

The NM_007315.4(STAT1):​c.793A>G​(p.Ile265Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000377 in 1,613,848 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0021 ( 2 hom., cov: 31)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

STAT1
NM_007315.4 missense

Scores

1
17

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 0.0820

Publications

3 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)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 3 uncertain in NM_007315.4
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=0.013243556).
BP6
Variant 2-190995212-T-C is Benign according to our data. Variant chr2-190995212-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 541826.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00205 (312/152114) while in subpopulation AFR AF = 0.0069 (286/41464). AF 95% confidence interval is 0.00624. There are 2 homozygotes in GnomAd4. There are 147 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
STAT1NM_007315.4 linkc.793A>G p.Ile265Val missense_variant Exon 10 of 25 ENST00000361099.8 NP_009330.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
STAT1ENST00000361099.8 linkc.793A>G p.Ile265Val missense_variant Exon 10 of 25 1 NM_007315.4 ENSP00000354394.4

Frequencies

GnomAD3 genomes
AF:
0.00205
AC:
311
AN:
151996
Hom.:
2
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00689
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00111
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:
0.0000294
Gnomad OTH
AF:
0.00335
GnomAD2 exomes
AF:
0.000457
AC:
115
AN:
251412
AF XY:
0.000339
show subpopulations
Gnomad AFR exome
AF:
0.00603
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.000203
AC:
297
AN:
1461734
Hom.:
0
Cov.:
31
AF XY:
0.000169
AC XY:
123
AN XY:
727176
show subpopulations
African (AFR)
AF:
0.00705
AC:
236
AN:
33472
American (AMR)
AF:
0.000425
AC:
19
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53380
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000630
AC:
7
AN:
1111928
Other (OTH)
AF:
0.000547
AC:
33
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
16
33
49
66
82
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00205
AC:
312
AN:
152114
Hom.:
2
Cov.:
31
AF XY:
0.00198
AC XY:
147
AN XY:
74384
show subpopulations
African (AFR)
AF:
0.00690
AC:
286
AN:
41464
American (AMR)
AF:
0.00111
AC:
17
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10566
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68008
Other (OTH)
AF:
0.00332
AC:
7
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.516
Heterozygous variant carriers
0
13
26
40
53
66
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000888
Hom.:
0
Bravo
AF:
0.00230
ESP6500AA
AF:
0.00454
AC:
20
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.000494
AC:
60
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Immunodeficiency 31B;C3279990:Autoimmune enteropathy and endocrinopathy - susceptibility to chronic infections syndrome;C4013950:Mendelian susceptibility to mycobacterial diseases due to partial STAT1 deficiency Uncertain:1Benign:1
Jan 27, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Nov 23, 2021
New York Genome Center
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not provided Uncertain:1Benign:1
Aug 12, 2022
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

BP4, PP2

Dec 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

STAT1: PP2, BP4, BS2

STAT1-related disorder Benign:1
Feb 10, 2024
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.054
BayesDel_addAF
Benign
-0.59
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
5.1
DANN
Benign
0.54
DEOGEN2
Uncertain
0.51
D;D;.;.
Eigen
Benign
-0.97
Eigen_PC
Benign
-0.96
FATHMM_MKL
Benign
0.28
N
LIST_S2
Benign
0.0
.;T;T;T
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.013
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.57
N;N;N;.
PhyloP100
0.082
PrimateAI
Benign
0.30
T
PROVEAN
Benign
0.25
N;N;N;N
REVEL
Benign
0.067
Sift
Benign
0.42
T;T;T;T
Sift4G
Benign
0.30
T;T;T;T
Vest4
0.12
ClinPred
0.00043
T
GERP RS
0.74
Varity_R
0.023
gMVP
0.69
Mutation Taster
=87/13
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

Publications

Other links and lift over

dbSNP: rs148775168; hg19: chr2-191859938; COSMIC: COSV107429662; COSMIC: COSV107429662; API