16-3068006-T-G

Variant names:

• chr16-3068006-T-G
• rs774367638
• NM_001376923.1:c.137T>G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001376923.1(IL32):​c.137T>G​(p.Leu46Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000805 in 1,613,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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: 0.0000068 (0 hom.)
• Consequence: IL32 NM_001376923.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0750

Genes affected

IL32 (HGNC:16830): (interleukin 32) This gene encodes a member of the cytokine family. The protein contains a tyrosine sulfation site, 3 potential N-myristoylation sites, multiple putative phosphorylation sites, and an RGD cell-attachment sequence. Expression of this protein is increased after the activation of T-cells by mitogens or the activation of NK cells by IL-2. This protein induces the production of TNFalpha from macrophage cells. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.11005297).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IL32	NM_001376923.1	c.137T>G	p.Leu46Arg	missense_variant	Exon 5 of 7	ENST00000525643.7	NP_001363852.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IL32	ENST00000525643.7	c.137T>G	p.Leu46Arg	missense_variant	Exon 5 of 7	1	NM_001376923.1	ENSP00000432218.3

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152138 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000398 AC: 10 AN: 251372 Hom.: 0 AF XY: 0.0000515 AC XY: 7 AN XY: 135884

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000231

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000326

GnomAD4 exome AF: 0.00000684 AC: 10 AN: 1461832 Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5 AN XY: 727218

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.000157

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: 0.0000497

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152138 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74310

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000756

ExAC AF: 0.0000165 AC: 2

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Nov 14, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.137T>G (p.L46R) alteration is located in exon 6 (coding exon 4) of the IL32 gene. This alteration results from a T to G substitution at nucleotide position 137, causing the leucine (L) at amino acid position 46 to be replaced by an arginine (R). 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	0.76
BayesDel_addAF	Benign	-0.085	T
BayesDel_noAF	Uncertain	-0.060
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.045	.;T;T;.;.;T;.;.;.;.;.;T;.;.;.;.;.;T;.;.;.;T;T;.;.;.
Eigen	Benign	-0.57
Eigen_PC	Benign	-0.79
FATHMM_MKL	Benign	0.017	N
LIST_S2	Benign	0.30	.;.;T;T;.;.;.;.;.;.;.;T;.;.;.;.;.;.;T;.;T;T;T;T;T;T
M_CAP	Benign	0.041	D
MetaRNN	Benign	0.11	T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM	Benign	-0.75	T
MutationAssessor	Benign	0.0	.;N;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;N;.;.;.;.;N;.;.;.
PrimateAI	Benign	0.48	T
PROVEAN	Uncertain	-3.0	D;D;.;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
REVEL	Uncertain	0.30
Sift	Uncertain	0.014	D;D;.;D;D;D;D;D;D;D;D;D;D;T;D;D;T;D;D;D;D;D;D;D;T;T
Sift4G	Pathogenic	0.0	D;D;T;T;D;T;D;D;D;D;D;D;D;T;D;D;T;D;D;D;D;T;D;D;T;T
Polyphen		1.0	D;D;D;.;D;D;D;D;D;D;D;.;D;.;D;D;.;D;.;D;D;.;D;D;.;.
Vest4		0.44
MutPred		0.38		.;Loss of helix (P = 0.0138);.;.;.;.;.;.;.;.;.;Loss of helix (P = 0.0138);.;.;.;.;.;Loss of helix (P = 0.0138);Loss of helix (P = 0.0138);.;.;.;Loss of helix (P = 0.0138);.;.;.;
MVP		0.82
MPC		0.40
ClinPred		0.27	T
GERP RS		0.78
Varity_R		0.36
gMVP		0.014

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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

Other links and lift over

dbSNP: rs774367638; hg19: chr16-3118007;