4-184435757-G-A

Variant names:

• chr4-184435757-G-A
• rs13139310
• NM_002199.4:c.-6-6687C>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002199.4(IRF2):​c.-6-6687C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.153 in 152,100 control chromosomes in the GnomAD database, including 2,213 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 0.15 (2213 hom., cov: 31)
• Consequence: IRF2 NM_002199.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0670
• Publications: 4 publications found

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

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.213 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IRF2	NM_002199.4	c.-6-6687C>T		intron_variant	Intron 1 of 8	ENST00000393593.8	NP_002190.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IRF2	ENST00000393593.8	c.-6-6687C>T		intron_variant	Intron 1 of 8	1	NM_002199.4	ENSP00000377218.3

Frequencies

GnomAD3 genomes AF: 0.153 AC: 23248 AN: 151982 Hom.: 2217 Cov.: 31

Gnomad AFR AF: 0.0484

Gnomad AMI AF: 0.162

Gnomad AMR AF: 0.152

Gnomad ASJ AF: 0.171

Gnomad EAS AF: 0.0284

Gnomad SAS AF: 0.192

Gnomad FIN AF: 0.190

Gnomad MID AF: 0.136

Gnomad NFE AF: 0.216

Gnomad OTH AF: 0.167

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

GnomAD4 genome AF: 0.153 AC: 23231 AN: 152100 Hom.: 2213 Cov.: 31 AF XY: 0.152 AC XY: 11270 AN XY: 74350

African (AFR) AF: 0.0482 AC: 2002 AN: 41506

American (AMR) AF: 0.152 AC: 2321 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.171 AC: 595 AN: 3472

East Asian (EAS) AF: 0.0284 AC: 147 AN: 5172

South Asian (SAS) AF: 0.191 AC: 921 AN: 4818

European-Finnish (FIN) AF: 0.190 AC: 2012 AN: 10572

Middle Eastern (MID) AF: 0.139 AC: 41 AN: 294

European-Non Finnish (NFE) AF: 0.216 AC: 14701 AN: 67974

Other (OTH) AF: 0.163 AC: 343 AN: 2106

Alfa AF: 0.182 Hom.: 5371

Bravo AF: 0.143

Asia WGS AF: 0.105 AC: 366 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	2.4
DANN	Benign	0.29
PhyloP100		0.067
Mutation Taster		=100/0	polymorphism (auto)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs13139310; hg19: chr4-185356911;