Variant chr2-112832825-T-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_000576.3(IL1B):c.303A>T(p.Glu101Asp) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

IL1B
NM_000576.3 missense, splice_region

Scores

Splicing: ADA: 0.00003555

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0480

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.754

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IL1B	NM_000576.3 linkuse as main transcript	c.303A>T	p.Glu101Asp	missense_variant, splice_region_variant	5/7	ENST00000263341.7
IL1B	XM_047444175.1 linkuse as main transcript	c.69A>T	p.Glu23Asp	missense_variant, splice_region_variant	2/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IL1B	ENST00000263341.7 linkuse as main transcript	c.303A>T	p.Glu101Asp	missense_variant, splice_region_variant	5/7	1	NM_000576.3	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461854

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727230

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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 submitter

clinical testing

Ambry Genetics

Dec 17, 2021

The c.303A>T (p.E101D) alteration is located in exon 5 (coding exon 4) of the IL1B gene. This alteration results from a A to T substitution at nucleotide position 303, causing the glutamic acid (E) at amino acid position 101 to be replaced by an aspartic acid (D). 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

0.44

BayesDel_addAF

Benign

-0.039

BayesDel_noAF

Benign

-0.29

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

T;T;.;T

Eigen

Benign

-0.23

Eigen_PC

Benign

-0.49

FATHMM_MKL

Benign

0.33

LIST_S2

Benign

0.83

T;T;T;T

M_CAP

Benign

0.031

MetaRNN

Pathogenic

0.75

D;D;D;D

MetaSVM

Benign

-0.49

MutationAssessor

Uncertain

2.3

M;.;.;.

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-2.2

N;N;N;N

REVEL

Uncertain

0.31

Sift

Uncertain

0.0080

D;D;D;D

Sift4G

Uncertain

0.012

D;D;.;D

Polyphen

1.0

D;.;.;.

Vest4

0.42

MutPred

0.81

Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);

MVP

0.74

MPC

1.2

ClinPred

0.98

GERP RS

-4.1

Varity_R

0.27

gMVP

0.58

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000036

dbscSNV1_RF

Benign

0.12

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over