11-612681-G-T

Variant names:

• chr11-612681-G-T
• rs755671976
• NM_001572.5:c.1476C>A

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2 BP4_Strong BP6_Moderate BP7

The NM_001572.5(IRF7):​c.1476C>A​(p.Ile492Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,952 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 (★). Synonymous variant affecting the same amino acid position (i.e. I492I) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: IRF7 NM_001572.5 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -5.28
• Publications: 0 publications found

Genes affected

IRF7 (HGNC:6122): (interferon regulatory factor 7) This gene encodes interferon regulatory factor 7, a member of the interferon regulatory transcription factor (IRF) family. It has been shown to play a role in the transcriptional activation of virus-inducible cellular genes, including interferon beta chain genes. Inducible expression of IRF7 is largely restricted to lymphoid tissue. The encoded protein plays an important role in the innate immune response against DNA and RNA viruses. [provided by RefSeq, Jul 2021]

IRF7 Gene-Disease associations (from GenCC):

• immunodeficiency 39

  Inheritance: AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

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=-0.9).
• BP6: Variant 11-612681-G-T is Benign according to our data. Variant chr11-612681-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 1513571.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-5.28 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001572.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IRF7	NM_001572.5	MANE Select	c.1476C>A	p.Ile492Ile	synonymous	Exon 11 of 11	NP_001563.2
	IRF7	NM_004031.4		c.1515C>A	p.Ile505Ile	synonymous	Exon 10 of 10	NP_004022.2	Q92985-4
	IRF7	NM_001440440.1		c.1512C>A	p.Ile504Ile	synonymous	Exon 10 of 10	NP_001427369.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IRF7	ENST00000525445.6	TSL:5 MANE Select	c.1476C>A	p.Ile492Ile	synonymous	Exon 11 of 11	ENSP00000434009.2	Q92985-1
	IRF7	ENST00000397566.5	TSL:1	c.1515C>A	p.Ile505Ile	synonymous	Exon 9 of 9	ENSP00000380697.1	Q92985-4
	IRF7	ENST00000397570.5	TSL:1	c.1428C>A	p.Ile476Ile	synonymous	Exon 8 of 8	ENSP00000380700.2	M9RSF4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000797 AC: 2 AN: 250792 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000578

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460952 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726798

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

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000447 AC: 2 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52526

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111984

Other (OTH) AF: 0.00 AC: 0 AN: 60378

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Immunodeficiency 39 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.080
DANN	Benign	0.49
PhyloP100		-5.3

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: rs755671976; hg19: chr11-612681;