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GeneBe

21-33403599-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_005534.4(IFNGR2):​c.56C>T​(p.Ala19Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000511 in 1,369,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000033 ( 0 hom. )

Consequence

IFNGR2
NM_005534.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.269
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.2662083).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IFNGR2NM_005534.4 linkuse as main transcriptc.56C>T p.Ala19Val missense_variant 1/7 ENST00000290219.11
IFNGR2NM_001329128.2 linkuse as main transcriptc.56C>T p.Ala19Val missense_variant 1/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IFNGR2ENST00000290219.11 linkuse as main transcriptc.56C>T p.Ala19Val missense_variant 1/71 NM_005534.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151406
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000484
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:
0.00
GnomAD4 exome
AF:
0.00000329
AC:
4
AN:
1217544
Hom.:
0
Cov.:
31
AF XY:
0.00000503
AC XY:
3
AN XY:
596870
show subpopulations
Gnomad4 AFR exome
AF:
0.0000818
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000407
GnomAD4 genome
AF:
0.0000198
AC:
3
AN:
151514
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74062
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000475
Bravo
AF:
0.00000378
Asia WGS
AF:
0.000586
AC:
2
AN:
3426

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Immunodeficiency 28 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJul 19, 2022This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 19 of the IFNGR2 protein (p.Ala19Val). This variant is present in population databases (no rsID available, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with IFNGR2-related conditions. ClinVar contains an entry for this variant (Variation ID: 666003). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). 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
0.34
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
14
DANN
Uncertain
0.98
DEOGEN2
Benign
0.090
T;.
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.67
FATHMM_MKL
Benign
0.017
N
LIST_S2
Benign
0.50
T;T
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.27
T;T
MetaSVM
Benign
-0.87
T
MutationAssessor
Benign
1.0
L;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
0.16
N;N
REVEL
Benign
0.12
Sift
Benign
0.12
T;D
Sift4G
Benign
0.062
T;D
Polyphen
0.99
D;D
Vest4
0.26
MutPred
0.33
Loss of glycosylation at P23 (P = 0.1209);Loss of glycosylation at P23 (P = 0.1209);
MVP
0.75
MPC
0.40
ClinPred
0.45
T
GERP RS
1.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.2
Varity_R
0.077
gMVP
0.30

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs956427420; hg19: chr21-34775905; API