2-112917695-T-C

Position:

• chr2-112917695-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_014439.4(IL37):​c.326T>C​(p.Ile109Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: IL37 NM_014439.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.544

Genes affected

IL37 (HGNC:15563): (interleukin 37) The protein encoded by this gene is a member of the interleukin 1 cytokine family. This cytokine can bind to, and may be a ligand for interleukin 18 receptor (IL18R1/IL-1Rrp). This cytokine also binds to interleukin 18 binding protein (IL18BP), an inhibitory binding protein of interleukin 18 (IL18), and subsequently forms a complex with IL18 receptor beta subunit, and through which it inhibits the activity of IL18. This gene along with eight other interleukin 1 family genes form a cytokine gene cluster on chromosome 2. Five alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.947

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IL37	NM_014439.4	c.326T>C	p.Ile109Thr	missense_variant	5/6	ENST00000263326.8	NP_055254.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IL37	ENST00000263326.8	c.326T>C	p.Ile109Thr	missense_variant	5/6	1	NM_014439.4	ENSP00000263326	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 23, 2024

The c.326T>C (p.I109T) alteration is located in exon 4 (coding exon 4) of the IL37 gene. This alteration results from a T to C substitution at nucleotide position 326, causing the isoleucine (I) at amino acid position 109 to be replaced by a threonine (T). 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	Pathogenic	0.79
BayesDel_addAF	Pathogenic	0.23	D
BayesDel_noAF	Uncertain	0.10
CADD	Benign	17
DANN	Uncertain	0.99
DEOGEN2	Benign	0.075	T;.;.;.;.
Eigen	Benign	-0.18
Eigen_PC	Benign	-0.46
FATHMM_MKL	Benign	0.049	N
LIST_S2	Benign	0.77	T;T;T;T;T
M_CAP	Benign	0.013	T
MetaRNN	Pathogenic	0.95	D;D;D;D;D
MetaSVM	Benign	-0.78	T
MutationAssessor	Pathogenic	3.2	M;.;.;.;.
MutationTaster	Benign	1.0	N;N;N;N;N
PrimateAI	Benign	0.37	T
PROVEAN	Uncertain	-4.2	D;D;D;D;D
REVEL	Benign	0.25
Sift	Uncertain	0.018	D;D;D;D;D
Sift4G	Uncertain	0.0040	D;D;D;D;D
Polyphen		1.0	D;D;D;D;D
Vest4		0.76
MutPred		0.69		Loss of stability (P = 0.0133);.;.;.;.;
MVP		0.54
MPC		0.52
ClinPred		0.76	D
GERP RS		2.0
Varity_R		0.76
gMVP		0.52

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: chr2-113675272;