Genetic Variant IRF6:c.*2414G>A (chr1-209786006-C-T) – ACMG Classification: Benign (-14 pts)

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_006147.4(IRF6):c.*2414G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00644 in 152,166 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0064 ( 11 hom., cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

IRF6
NM_006147.4 3_prime_UTR

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: 0.573

Variant links:

Genes affected

IRF6 (HGNC:6121): (interferon regulatory factor 6) This gene encodes a member of the interferon regulatory transcription factor (IRF) family. Family members share a highly-conserved N-terminal helix-turn-helix DNA-binding domain and a less conserved C-terminal protein-binding domain. The encoded protein may be a transcriptional activator. Mutations in this gene can cause van der Woude syndrome and popliteal pterygium syndrome. Mutations in this gene are also associated with non-syndromic orofacial cleft type 6. Alternate splicing results in multiple transcript variants.[provided by RefSeq, May 2011]

IRF6 links:

ENSG00000289700 (HGNC:):

ENSG00000289700 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.84).

BP6

Variant 1-209786006-C-T is Benign according to our data. Variant chr1-209786006-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 295171.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00644 (980/152166) while in subpopulation AFR AF= 0.0224 (927/41470). AF 95% confidence interval is 0.0212. There are 11 homozygotes in gnomad4. There are 446 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 980 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IRF6	NM_006147.4 link	c.*2414G>A		3_prime_UTR_variant	Exon 9 of 9	ENST00000367021.8	NP_006138.1	O14896-1G0Z349
IRF6	NM_001206696.2 link	c.*2414G>A		3_prime_UTR_variant	Exon 7 of 7		NP_001193625.1	O14896-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IRF6	ENST00000367021 link	c.*2414G>A		3_prime_UTR_variant	Exon 9 of 9	1	NM_006147.4	ENSP00000355988.3		O14896-1
ENSG00000289700	ENST00000696133.1 link	c.1401-2297G>A		intron_variant	Intron 9 of 9			ENSP00000512426.1		A0A8Q3SJ75

Frequencies

GnomAD3 genomes

AF:

0.00647

AC:

983

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0225

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00255

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00239

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

Gnomad4 EAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

GnomAD4 genome

AF:

0.00644

AC:

980

AN:

152166

Hom.:

Cov.:

AF XY:

0.00599

AC XY:

446

AN XY:

74404

show subpopulations

Gnomad4 AFR

AF:

0.0224

Gnomad4 AMR

AF:

0.00255

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00237

Alfa

AF:

0.00524

Hom.:

Bravo

AF:

0.00725

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Orofacial cleft 6, susceptibility to

Benign:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Van der Woude syndrome 1

Benign:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

2.7

DANN

Benign

0.48

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