Genetic Variant IL31:p.Gly61Gly (chr12-122172724-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_001014336.2(IL31):c.183C>T(p.Gly61Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000212 in 1,610,186 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. G61G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00022 ( 1 hom. )

Consequence

IL31
NM_001014336.2 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -3.28

Variant links:

Genes affected

IL31 (HGNC:19372): (interleukin 31) IL31, which is made principally by activated Th2-type T cells, interacts with a heterodimeric receptor consisting of IL31RA (MIM 609510) and OSMR (MIM 601743) that is constitutively expressed on epithelial cells and keratinocytes. IL31 may be involved in the promotion of allergic skin disorders and in regulating other allergic diseases, such as asthma (Dillon et al., 2004 [PubMed 15184896]).[supplied by OMIM, Mar 2008]

IL31 links:

LRRC43 (HGNC:28562): (leucine rich repeat containing 43)

LRRC43 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.83).

BP6

Variant 12-122172724-G-A is Benign according to our data. Variant chr12-122172724-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3109380.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-3.28 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IL31	NM_001014336.2 link	c.183C>T	p.Gly61Gly	synonymous_variant	Exon 3 of 3	ENST00000377035.2	NP_001014358.1	Q6EBC2
LRRC43	NM_152759.5 link	c.-406+4942G>A		intron_variant	Intron 1 of 11		NP_689972.3	Q8N309-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IL31	ENST00000377035.2 link	c.183C>T	p.Gly61Gly	synonymous_variant	Exon 3 of 3	1	NM_001014336.2	ENSP00000366234.1		Q6EBC2
LRRC43	ENST00000537729.5 link	c.-406+4942G>A		intron_variant	Intron 1 of 5	5		ENSP00000438751.1		F5H0N3

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152010

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000416

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000250

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.000234

AC:

AN:

243396

Hom.:

AF XY:

0.000228

AC XY:

AN XY:

131728

show subpopulations

Gnomad AFR exome

AF:

0.0000638

Gnomad AMR exome

AF:

0.000239

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000398

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000320

Gnomad OTH exome

AF:

0.000167

GnomAD4 exome

AF:

0.000220

AC:

321

AN:

1458058

Hom.:

Cov.:

AF XY:

0.000203

AC XY:

147

AN XY:

725078

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.000273

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000430

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000222

Gnomad4 OTH exome

AF:

0.000299

GnomAD4 genome

AF:

0.000138

AC:

AN:

152128

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74354

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000250

Gnomad4 OTH

AF:

0.000945

Alfa

AF:

0.0000384

Hom.:

224

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Mar 07, 2024

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.83

CADD

Benign

0.17

DANN

Benign

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

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over