5-132484229-C-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_002198.3(IRF1):c.853+133G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.467 in 1,411,578 control chromosomes in the GnomAD database, including 158,672 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency:
  • Genomes: 𝑓 0.52 (21002 hom., cov: 31)
  • Exomes 𝑓: 0.46 (137670 hom.)
• Consequence: IRF1 NM_002198.3 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.677

Genes affected

IRF1 (HGNC:6116): (interferon regulatory factor 1) The protein encoded by this gene is a transcriptional regulator and tumor suppressor, serving as an activator of genes involved in both innate and acquired immune responses. The encoded protein activates the transcription of genes involved in the body's response to viruses and bacteria, playing a role in cell proliferation, apoptosis, the immune response, and DNA damage response. This protein represses the transcription of several other genes. As a tumor suppressor, it both suppresses tumor cell growth and stimulates an immune response against tumor cells. Defects in this gene have been associated with gastric cancer, myelogenous leukemia, and lung cancer. [provided by RefSeq, Aug 2017]

IRF1-AS1 (HGNC:33838): (colitis associated IRF1 antisense regulator of intestinal homeostasis)

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BP6: Variant 5-132484229-C-A is Benign according to our data. Variant chr5-132484229-C-A is described in ClinVar as [Benign]. Clinvar id is 2688486.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.68 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IRF1	NM_002198.3	c.853+133G>T		intron_variant		ENST00000245414.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IRF1	ENST00000245414.9	c.853+133G>T		intron_variant		1	NM_002198.3	P1
IRF1-AS1	ENST00000612967.2	n.281-1963C>A		intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes AF: 0.518 AC: 78525 AN: 151730 Hom.: 20968 Cov.: 31

Gnomad AFR AF: 0.621

Gnomad AMI AF: 0.325

Gnomad AMR AF: 0.547

Gnomad ASJ AF: 0.412

Gnomad EAS AF: 0.699

Gnomad SAS AF: 0.614

Gnomad FIN AF: 0.500

Gnomad MID AF: 0.614

Gnomad NFE AF: 0.439

Gnomad OTH AF: 0.487

GnomAD4 exome AF: 0.461 AC: 580318 AN: 1259730 Hom.: 137670 Cov.: 18 AF XY: 0.464 AC XY: 290259 AN XY: 625902

Gnomad4 AFR exome AF: 0.618

Gnomad4 AMR exome AF: 0.608

Gnomad4 ASJ exome AF: 0.400

Gnomad4 EAS exome AF: 0.693

Gnomad4 SAS exome AF: 0.600

Gnomad4 FIN exome AF: 0.499

Gnomad4 NFE exome AF: 0.429

Gnomad4 OTH exome AF: 0.473

GnomAD4 genome AF: 0.518 AC: 78617 AN: 151848 Hom.: 21002 Cov.: 31 AF XY: 0.525 AC XY: 38950 AN XY: 74174

Gnomad4 AFR AF: 0.621

Gnomad4 AMR AF: 0.548

Gnomad4 ASJ AF: 0.412

Gnomad4 EAS AF: 0.699

Gnomad4 SAS AF: 0.614

Gnomad4 FIN AF: 0.500

Gnomad4 NFE AF: 0.439

Gnomad4 OTH AF: 0.489

Alfa AF: 0.459 Hom.: 16429

Bravo AF: 0.523

Asia WGS AF: 0.615 AC: 2141 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

Unidad de Genómica Garrahan, Hospital de Pediatría Garrahan

Jan 24, 2024

This variant is classified as Benign based on local population frequency. This variant was detected in 24% of patients studied by a panel of primary immunodeficiencies. Number of patients: 21. Only high quality variants are reported. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
Cadd	Benign	0.82
Dann	Benign	0.60
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0

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

Publications

LitVar

Other links and lift over

dbSNP: rs2070729; hg19: chr5-131819921;