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GeneBe

2-102445230-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001393487.1(IL18RAP):c.962T>A(p.Ile321Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,814 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

IL18RAP
NM_001393487.1 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.868
Variant links:
Genes affected
IL18RAP (HGNC:5989): (interleukin 18 receptor accessory protein) The protein encoded by this gene is an accessory subunit of the heterodimeric receptor for interleukin 18 (IL18), a proinflammatory cytokine involved in inducing cell-mediated immunity. This protein enhances the IL18-binding activity of the IL18 receptor and plays a role in signaling by IL18. Mutations in this gene are associated with Crohn's disease and inflammatory bowel disease, and susceptibility to celiac disease and leprosy. Alternatively spliced transcript variants of this gene have been described, but their full-length nature is not known. [provided by RefSeq, Feb 2014]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IL18RAPNM_001393487.1 linkuse as main transcriptc.962T>A p.Ile321Asn missense_variant 7/10 ENST00000687160.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IL18RAPENST00000687160.1 linkuse as main transcriptc.962T>A p.Ile321Asn missense_variant 7/10 NM_001393487.1 P1O95256-1
IL18RAPENST00000264260.6 linkuse as main transcriptc.962T>A p.Ile321Asn missense_variant 9/121 P1O95256-1
IL18RAPENST00000409369.1 linkuse as main transcriptc.536T>A p.Ile179Asn missense_variant 7/101 O95256-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461814
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
727222
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 29, 2023The c.962T>A (p.I321N) alteration is located in exon 9 (coding exon 7) of the IL18RAP gene. This alteration results from a T to A substitution at nucleotide position 962, causing the isoleucine (I) at amino acid position 321 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.41
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.45
Cadd
Benign
17
Dann
Uncertain
0.98
DEOGEN2
Uncertain
0.72
D;.
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.49
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.50
T;T
M_CAP
Benign
0.029
D
MetaRNN
Uncertain
0.64
D;D
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.7
L;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.36
T
PROVEAN
Uncertain
-3.8
D;D
REVEL
Benign
0.19
Sift
Uncertain
0.0070
D;D
Sift4G
Uncertain
0.022
D;D
Polyphen
0.82
P;.
Vest4
0.69
MutPred
0.74
Loss of stability (P = 0.0369);.;
MVP
0.28
MPC
0.61
ClinPred
0.80
D
GERP RS
2.9
Varity_R
0.51
gMVP
0.96

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-103061690; COSMIC: COSV51830072; COSMIC: COSV51830072; API