2-112833537-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000576.3(IL1B):c.138C>T(p.Gly46Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00167 in 1,614,032 control chromosomes in the GnomAD database, including 37 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 4 hom., cov: 32)

Exomes 𝑓: 0.0017 ( 33 hom. )

Consequence

IL1B
NM_000576.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.297

Publications

5 publications found

Variant links:

Genes affected

IL1B (HGNC:5992): (interleukin 1 beta) The protein encoded by this gene is a member of the interleukin 1 cytokine family. This cytokine is produced by activated macrophages as a proprotein, which is proteolytically processed to its active form by caspase 1 (CASP1/ICE). This cytokine is an important mediator of the inflammatory response, and is involved in a variety of cellular activities, including cell proliferation, differentiation, and apoptosis. The induction of cyclooxygenase-2 (PTGS2/COX2) by this cytokine in the central nervous system (CNS) is found to contribute to inflammatory pain hypersensitivity. Similarly, IL-1B has been implicated in human osteoarthritis pathogenesis. Patients with severe Coronavirus Disease 2019 (COVID-19) present elevated levels of pro-inflammatory cytokines such as IL-1B in bronchial alveolar lavage fluid samples. The lung damage induced by the Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is to a large extent, a result of the inflammatory response promoted by cytokines such as IL-1B. This gene and eight other interleukin 1 family genes form a cytokine gene cluster on chromosome 2. [provided by RefSeq, Jul 2020]

IL1B Gene-Disease associations (from GenCC):

hereditary diffuse gastric adenocarcinoma
Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

IL1B links:

ENSG00000299339 (HGNC:):

ENSG00000299339 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 2-112833537-G-A is Benign according to our data. Variant chr2-112833537-G-A is described in ClinVar as Benign. ClinVar VariationId is 780097.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.297 with no splicing effect.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.00141 (215/152254) while in subpopulation EAS AF = 0.0257 (133/5178). AF 95% confidence interval is 0.0221. There are 4 homozygotes in GnomAd4. There are 135 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 4 Unknown gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000576.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IL1B	NM_000576.3	MANE Select	c.138C>T	p.Gly46Gly	synonymous	Exon 4 of 7	NP_000567.1	P01584

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IL1B	ENST00000263341.7	TSL:1 MANE Select	c.138C>T	p.Gly46Gly	synonymous	Exon 4 of 7	ENSP00000263341.2	P01584
IL1B	ENST00000491056.5	TSL:1	n.688C>T		non_coding_transcript_exon	Exon 3 of 6
IL1B	ENST00000418817.5	TSL:3	c.138C>T	p.Gly46Gly	synonymous	Exon 4 of 5	ENSP00000407219.1	C9JWV2

Frequencies

GnomAD3 genomes

AF:

0.00142

AC:

216

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0256

Gnomad SAS

AF:

0.0151

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00390

AC:

981

AN:

251260

AF XY:

0.00423

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000231

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0284

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000158

Gnomad OTH exome

AF:

0.00163

GnomAD4 exome

AF:

0.00169

AC:

2475

AN:

1461778

Hom.:

Cov.:

AF XY:

0.00202

AC XY:

1468

AN XY:

727180

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.000201

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26136

East Asian (EAS)

AF:

0.0257

AC:

1022

AN:

39700

South Asian (SAS)

AF:

0.0139

AC:

1202

AN:

86258

European-Finnish (FIN)

AF:

0.0000188

AC:

AN:

53324

Middle Eastern (MID)

AF:

0.000693

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000719

AC:

AN:

1112000

Other (OTH)

AF:

0.00257

AC:

155

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

175

349

524

698

873

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

114

152

190

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00141

AC:

215

AN:

152254

Hom.:

Cov.:

AF XY:

0.00181

AC XY:

135

AN XY:

74448

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41546

American (AMR)

AF:

0.000262

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.0257

AC:

133

AN:

5178

South Asian (SAS)

AF:

0.0149

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.511

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000259

Hom.:

Bravo

AF:

0.00131

Asia WGS

AF:

0.0130

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000119

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

6.9

(source)

DANN

Benign

0.83

PhyloP100

-0.30

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over