chr6-137206273-T-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM1BP4_ModerateBS1_Supporting

The NM_000416.3(IFNGR1):c.236A>G(p.Asn79Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000145 in 1,610,082 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 1 hom. )

Consequence

IFNGR1
NM_000416.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.840

Publications

1 publications found

Variant links:

Genes affected

IFNGR1 (HGNC:5439): (interferon gamma receptor 1) This gene (IFNGR1) encodes the ligand-binding chain (alpha) of the gamma interferon receptor. Human interferon-gamma receptor is a heterodimer of IFNGR1 and IFNGR2. A genetic variation in IFNGR1 is associated with susceptibility to Helicobacter pylori infection. In addition, defects in IFNGR1 are a cause of mendelian susceptibility to mycobacterial disease, also known as familial disseminated atypical mycobacterial infection. [provided by RefSeq, Jul 2008]

IFNGR1 Gene-Disease associations (from GenCC):

autosomal dominant mendelian susceptibility to mycobacterial diseases due to partial IFNgammaR1 deficiency
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics
immunodeficiency 27A
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
autosomal recessive Mendelian susceptibility to mycobacterial diseases due to partial IFNgammaR1 deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Mendelian susceptibility to mycobacterial diseases due to complete IFNgammaR1 deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

IFNGR1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 3 uncertain in NM_000416.3

BP4

Computational evidence support a benign effect (MetaRNN=0.11210221).

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000256 (39/152336) while in subpopulation AFR AF = 0.000577 (24/41576). AF 95% confidence interval is 0.000398. There are 0 homozygotes in GnomAd4. There are 20 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IFNGR1	NM_000416.3 link	c.236A>G	p.Asn79Ser	missense_variant	Exon 3 of 7	ENST00000367739.9	NP_000407.1	P15260-1A0A0S2Z3Y2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IFNGR1	ENST00000367739.9 link	c.236A>G	p.Asn79Ser	missense_variant	Exon 3 of 7	1	NM_000416.3	ENSP00000356713.5		P15260-1

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000579

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000413

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.000159

AC:

AN:

251174

AF XY:

0.000184

show subpopulations

Gnomad AFR exome

AF:

0.000431

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000705

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000134

AC:

195

AN:

1457746

Hom.:

Cov.:

AF XY:

0.000147

AC XY:

107

AN XY:

725548

show subpopulations

African (AFR)

AF:

0.000150

AC:

AN:

33378

American (AMR)

AF:

0.000134

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26100

East Asian (EAS)

AF:

0.000202

AC:

AN:

39650

South Asian (SAS)

AF:

0.000406

AC:

AN:

86166

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.000115

AC:

128

AN:

1108276

Other (OTH)

AF:

0.000199

AC:

AN:

60282

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000256

AC:

AN:

152336

Hom.:

Cov.:

AF XY:

0.000268

AC XY:

AN XY:

74496

show subpopulations

African (AFR)

AF:

0.000577

AC:

AN:

41576

American (AMR)

AF:

0.0000653

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000414

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000162

AC:

AN:

68026

Other (OTH)

AF:

0.000474

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000180

Hom.:

Bravo

AF:

0.000242

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000165

AC:

Asia WGS

AF:

0.00144

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Immunodeficiency 27A

Uncertain:2

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Dec 02, 2022

Laboratorio de Genetica e Diagnostico Molecular, Hospital Israelita Albert Einstein

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

ACMG classification criteria: BP4 supporting -

Disseminated atypical mycobacterial infection

Uncertain:1

Nov 15, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 79 of the IFNGR1 protein (p.Asn79Ser). This variant is present in population databases (rs377227464, gnomAD 0.06%). This variant has not been reported in the literature in individuals affected with IFNGR1-related conditions. ClinVar contains an entry for this variant (Variation ID: 569230). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt IFNGR1 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.37

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Uncertain

0.74

D;.;.;.;.;.;.;T

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.64

FATHMM_MKL

Benign

0.38

LIST_S2

Benign

0.55

T;.;T;.;.;T;T;T

M_CAP

Benign

0.024

MetaRNN

Benign

0.11

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.65

MutationAssessor

Benign

1.9

L;.;.;.;.;.;.;.

PhyloP100

0.84

PrimateAI

Benign

0.43

PROVEAN

Uncertain

-3.4

D;.;.;.;.;.;.;D

REVEL

Uncertain

0.32

Sift

Benign

0.094

T;.;.;.;.;.;.;T

Sift4G

Uncertain

0.047

D;.;.;.;.;.;.;.

Polyphen

1.0

D;.;.;.;.;.;.;.

Vest4

0.27

MVP

0.72

MPC

0.11

ClinPred

0.028

GERP RS

0.43

Varity_R

0.29

gMVP

0.52

Mutation Taster

=86/14

polymorphism

(source)

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

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chr6-137206273-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over