Variant 4-184388975-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_002199.4(IRF2):c.833C>T(p.Ala278Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000157 in 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

IRF2
NM_002199.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.58

Variant links:

Genes affected

IRF2 (HGNC:6117): (interferon regulatory factor 2) IRF2 encodes interferon regulatory factor 2, a member of the interferon regulatory transcription factor (IRF) family. IRF2 competitively inhibits the IRF1-mediated transcriptional activation of interferons alpha and beta, and presumably other genes that employ IRF1 for transcription activation. However, IRF2 also functions as a transcriptional activator of histone H4. [provided by RefSeq, Jul 2008]

IRF2 links:

IRF2 (HGNC:):

IRF2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 23 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IRF2	NM_002199.4 linkuse as main transcript	c.833C>T	p.Ala278Val	missense_variant	9/9	ENST00000393593.8	NP_002190.2	P14316-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IRF2	ENST00000393593.8 linkuse as main transcript	c.833C>T	p.Ala278Val	missense_variant	9/9	1	NM_002199.4	ENSP00000377218.3		P14316-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000160

AC:

AN:

249454

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

135008

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.0000268

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000157

AC:

AN:

1461874

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

727244

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000171

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000247

AC:

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

Jul 16, 2024

The c.833C>T (p.A278V) alteration is located in exon 9 (coding exon 8) of the IRF2 gene. This alteration results from a C to T substitution at nucleotide position 833, causing the alanine (A) at amino acid position 278 to be replaced by a valine (V). 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

Benign

0.22

BayesDel_addAF

Uncertain

0.070

BayesDel_noAF

Uncertain

-0.070

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.28

Eigen

Uncertain

0.26

Eigen_PC

Benign

0.20

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.80

M_CAP

Uncertain

0.15

MetaRNN

Uncertain

0.44

MetaSVM

Pathogenic

1.1

MutationAssessor

Benign

1.8

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-1.2

REVEL

Uncertain

0.55

Sift

Uncertain

0.021

Sift4G

Uncertain

0.019

Polyphen

1.0

Vest4

0.25

MutPred

0.40

Gain of helix (P = 0.0349);

MVP

1.0

MPC

0.85

ClinPred

0.31

GERP RS

4.5

Varity_R

0.046

gMVP

0.60

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