rs3775572

chr4-184448298-G-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002199.4(IRF2):c.-6-19228C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.821 in 152,136 control chromosomes in the GnomAD database, including 54,839 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.82 (54839 hom., cov: 32)
• Consequence: IRF2 NM_002199.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0540

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.96).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.965 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IRF2	NM_002199.4	c.-6-19228C>T		intron_variant		ENST00000393593.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IRF2	ENST00000393593.8	c.-6-19228C>T		intron_variant		1	NM_002199.4	P1

Frequencies

GnomAD3 genomes AF: 0.821 AC: 124778 AN: 152018 Hom.: 54821 Cov.: 32

Gnomad AFR AF: 0.473

Gnomad AMI AF: 0.979

Gnomad AMR AF: 0.927

Gnomad ASJ AF: 0.908

Gnomad EAS AF: 0.770

Gnomad SAS AF: 0.917

Gnomad FIN AF: 0.988

Gnomad MID AF: 0.877

Gnomad NFE AF: 0.971

Gnomad OTH AF: 0.871

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.821 AC: 124836 AN: 152136 Hom.: 54839 Cov.: 32 AF XY: 0.825 AC XY: 61412 AN XY: 74402

Gnomad4 AFR AF: 0.473

Gnomad4 AMR AF: 0.927

Gnomad4 ASJ AF: 0.908

Gnomad4 EAS AF: 0.770

Gnomad4 SAS AF: 0.917

Gnomad4 FIN AF: 0.988

Gnomad4 NFE AF: 0.971

Gnomad4 OTH AF: 0.871

Alfa AF: 0.940 Hom.: 111640

Bravo AF: 0.801

Asia WGS AF: 0.797 AC: 2774 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.96
Cadd	Benign	1.4
Dann	Benign	0.50

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

Other links and lift over

dbSNP: rs3775572; hg19: chr4-185369452;