Genetic Variant IFNGR2:p.Thr168Ser (chr21-33426974-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 4P and 4B. PM2PM5BP4_Strong

The NM_005534.4(IFNGR2):c.503C>G(p.Thr168Ser) 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 1,461,306 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. T168N) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

IFNGR2
NM_005534.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.461

Publications

0 publications found

Variant links:

Genes affected

IFNGR2 (HGNC:5440): (interferon gamma receptor 2) This gene (IFNGR2) encodes the non-ligand-binding beta chain of the gamma interferon receptor. Human interferon-gamma receptor is a heterodimer of IFNGR1 and IFNGR2. Defects in IFNGR2 are a cause of mendelian susceptibility to mycobacterial disease (MSMD), also known as familial disseminated atypical mycobacterial infection. MSMD is a genetically heterogeneous disease with autosomal recessive, autosomal dominant or X-linked inheritance. [provided by RefSeq, Jul 2008]

IFNGR2 Gene-Disease associations (from GenCC):

immunodeficiency 28
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
autosomal dominant mendelian susceptibility to mycobacterial diseases due to partial IFNgammaR2 deficiency
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autosomal recessive Mendelian susceptibility to mycobacterial diseases due to complete IFNgammaR2 deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
autosomal recessive Mendelian susceptibility to mycobacterial diseases due to partial IFNgammaR2 deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

IFNGR2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr21-33426974-C-A is described in ClinVar as Pathogenic. ClinVar VariationId is 14727.Status of the report is no_assertion_criteria_provided, 0 stars.

BP4

Computational evidence support a benign effect (MetaRNN=0.061280042).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IFNGR2	NM_005534.4 link	c.503C>G	p.Thr168Ser	missense_variant	Exon 4 of 7	ENST00000290219.11	NP_005525.2
IFNGR2	NM_001329128.2 link	c.560C>G	p.Thr187Ser	missense_variant	Exon 5 of 8		NP_001316057.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IFNGR2	ENST00000290219.11 link	c.503C>G	p.Thr168Ser	missense_variant	Exon 4 of 7	1	NM_005534.4	ENSP00000290219.5		P38484

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461306

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726992

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33458

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111484

Other (OTH)

AF:

0.00

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

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

0.083

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.71

CADD

Benign

0.0080

(source)

DANN

Benign

0.41

DEOGEN2

Benign

0.054

T;.;.

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.029

LIST_S2

Benign

0.29

T;T;T

M_CAP

Benign

0.0010

MetaRNN

Benign

0.061

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

L;.;.

PhyloP100

-0.46

PrimateAI

Benign

0.29

PROVEAN

Benign

0.26

N;N;N

REVEL

Benign

0.012

Sift

Benign

0.71

T;T;T

Sift4G

Benign

0.81

T;T;T

Polyphen

0.0

B;B;.

Vest4

0.070

MutPred

0.42

.;Gain of relative solvent accessibility (P = 0.0249);.;

MVP

0.63

MPC

0.37

ClinPred

0.045

GERP RS

-8.0

Varity_R

0.14

gMVP

0.17

Mutation Taster

=76/24

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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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