19-49660790-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001571.6(IRF3):​c.1021C>T​(p.Arg341Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000634 in 1,609,688 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

IRF3
NM_001571.6 missense

Scores

3
11
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.52
Variant links:
Genes affected
IRF3 (HGNC:6118): (interferon regulatory factor 3) This gene encodes a member of the interferon regulatory transcription factor (IRF) family. The encoded protein is found in an inactive cytoplasmic form that upon serine/threonine phosphorylation forms a complex with CREBBP. This complex translocates to the nucleus and activates the transcription of interferons alpha and beta, as well as other interferon-induced genes. The protein plays an important role in the innate immune response against DNA and RNA viruses. Mutations in this gene are associated with Encephalopathy, acute, infection-induced, herpes-specific, 7. [provided by RefSeq, Sep 2020]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IRF3NM_001571.6 linkuse as main transcriptc.1021C>T p.Arg341Cys missense_variant 7/8 ENST00000377139.8 NP_001562.1 Q14653-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IRF3ENST00000377139.8 linkuse as main transcriptc.1021C>T p.Arg341Cys missense_variant 7/81 NM_001571.6 ENSP00000366344.3 Q14653-1

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152110
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000217
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000497
AC:
12
AN:
241642
Hom.:
0
AF XY:
0.0000614
AC XY:
8
AN XY:
130312
show subpopulations
Gnomad AFR exome
AF:
0.000196
Gnomad AMR exome
AF:
0.000149
Gnomad ASJ exome
AF:
0.000102
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000275
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000604
AC:
88
AN:
1457460
Hom.:
0
Cov.:
30
AF XY:
0.0000566
AC XY:
41
AN XY:
724414
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.000159
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000675
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
AF:
0.0000920
AC:
14
AN:
152228
Hom.:
0
Cov.:
31
AF XY:
0.0000672
AC XY:
5
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.000217
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000136
Hom.:
0
Bravo
AF:
0.000113
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 12, 2024The c.1037C>T (p.T346M) alteration is located in exon 7 (coding exon 6) of the IRF3 gene. This alteration results from a C to T substitution at nucleotide position 1037, causing the threonine (T) at amino acid position 346 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Uncertain
0.096
D
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
31
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.62
D;D;D;D;.;D;.;.;D;D;T
Eigen
Uncertain
0.43
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Benign
0.69
D
LIST_S2
Uncertain
0.94
D;.;.;D;D;.;.;D;.;.;D
M_CAP
Uncertain
0.20
D
MetaRNN
Uncertain
0.60
D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.61
D
MutationAssessor
Uncertain
2.1
.;M;M;M;.;.;.;.;.;.;.
PROVEAN
Uncertain
-3.5
.;D;D;.;.;.;.;.;.;.;.
REVEL
Pathogenic
0.71
Sift
Benign
0.030
.;D;D;.;.;.;.;.;.;.;.
Sift4G
Uncertain
0.012
D;D;D;D;T;D;D;D;D;D;.
Polyphen
1.0
.;D;D;D;.;.;.;.;.;.;.
Vest4
0.58
MVP
0.99
ClinPred
0.19
T
GERP RS
4.4
Varity_R
0.25

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.13
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.

Other links and lift over

dbSNP: rs760057796; hg19: chr19-50164047; COSMIC: COSV99881800; COSMIC: COSV99881800; API