Genetic Variant IRF2BP2:p.Tyr43Tyr (chr1-234609366-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_182972.3(IRF2BP2):c.129C>T(p.Tyr43Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,400,734 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 Likely benign (★).

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

IRF2BP2
NM_182972.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.49

Publications

0 publications found

Variant links:

Genes affected

IRF2BP2 (HGNC:21729): (interferon regulatory factor 2 binding protein 2) This gene encodes an interferon regulatory factor-2 (IRF2) binding protein that interacts with the C-terminal transcriptional repression domain of IRF2. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2008]

IRF2BP2 links:

LINC00184 (HGNC:37192): (long intergenic non-protein coding RNA 184)

LINC00184 links:

ENSG00000228830 (HGNC:):

ENSG00000228830 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.61).

BP6

Variant 1-234609366-G-A is Benign according to our data. Variant chr1-234609366-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2985281.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=3.49 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IRF2BP2	NM_182972.3 link	c.129C>T	p.Tyr43Tyr	synonymous_variant	Exon 1 of 2	ENST00000366609.4	NP_892017.2	Q7Z5L9-1
IRF2BP2	NM_001077397.1 link	c.129C>T	p.Tyr43Tyr	synonymous_variant	Exon 1 of 2		NP_001070865.1	Q7Z5L9-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
IRF2BP2	ENST00000366609.4 link	c.129C>T	p.Tyr43Tyr	synonymous_variant	Exon 1 of 2	1	NM_182972.3	ENSP00000355568.3	Q7Z5L9-1
IRF2BP2	ENST00000366610.8 link	c.129C>T	p.Tyr43Tyr	synonymous_variant	Exon 1 of 2	1		ENSP00000355569.3	Q7Z5L9-2
LINC00184	ENST00000796406.1 link	n.72G>A		non_coding_transcript_exon_variant	Exon 1 of 4
ENSG00000228830	ENST00000436039.1 link	n.631-55G>A		intron_variant	Intron 1 of 1	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000143

AC:

AN:

1400734

Hom.:

Cov.:

AF XY:

0.00000144

AC XY:

AN XY:

695140

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

28842

American (AMR)

AF:

0.00

AC:

AN:

38052

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24550

East Asian (EAS)

AF:

0.00

AC:

AN:

33012

South Asian (SAS)

AF:

0.00

AC:

AN:

79708

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49594

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5152

European-Non Finnish (NFE)

AF:

0.00000184

AC:

AN:

1084170

Other (OTH)

AF:

0.00

AC:

AN:

57654

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Oct 15, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.61

CADD

Benign

(source)

DANN

Benign

0.90

PhyloP100

3.5

PromoterAI

-0.065

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Mutation Taster

=96/4

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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over