rs547782932

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_022168.4(IFIH1):​c.3044A>G​(p.Tyr1015Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000624 in 1,603,334 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

IFIH1
NM_022168.4 missense

Scores

2
7
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.75

Publications

0 publications found
Variant links:
Genes affected
IFIH1 (HGNC:18873): (interferon induced with helicase C domain 1) IFIH1 encodes MDA5 which is an intracellular sensor of viral RNA that triggers the innate immune response. Sensing RNA length and secondary structure, MDA5 binds dsRNA oligonucleotides with a modified DExD/H-box helicase core and a C-terminal domain, thus leading to a proinflammatory response that includes interferons. It has been shown that Coronaviruses (CoVs) as well as various other virus families, are capable of evading the MDA5-dependent interferon response, thus impeding the activation of the innate immune response to infection. MDA5 has also been shown to play an important role in enhancing natural killer cell function in malaria infection. In addition to its protective role in antiviral responses, MDA5 has been implicated in autoimmune and autoinflammatory diseases such as type 1 diabetes, systemic lupus erythematosus, and Aicardi-Goutieres syndrome[provided by RefSeq, Jul 2020]
IFIH1 Gene-Disease associations (from GenCC):
  • Aicardi-Goutieres syndrome 7
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Illumina, G2P, Labcorp Genetics (formerly Invitae)
  • IFIH1-related type 1 interferonopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • Singleton-Merten syndrome 1
    Inheritance: AD Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • Aicardi-Goutieres syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Singleton-Merten dysplasia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • immunodeficiency 95
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.27787203).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022168.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IFIH1
NM_022168.4
MANE Select
c.3044A>Gp.Tyr1015Cys
missense
Exon 16 of 16NP_071451.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IFIH1
ENST00000649979.2
MANE Select
c.3044A>Gp.Tyr1015Cys
missense
Exon 16 of 16ENSP00000497271.1Q9BYX4-1
IFIH1
ENST00000648433.1
c.2927A>Gp.Tyr976Cys
missense
Exon 15 of 15ENSP00000496816.1A0A3B3IRK8
IFIH1
ENST00000679938.1
c.2732A>Gp.Tyr911Cys
missense
Exon 15 of 15ENSP00000505518.1A0A7P0Z4A9

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152234
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000166
AC:
4
AN:
241026
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.000254
Gnomad AMR exome
AF:
0.00
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:
0.00000276
AC:
4
AN:
1450982
Hom.:
0
Cov.:
30
AF XY:
0.00000277
AC XY:
2
AN XY:
721576
show subpopulations
African (AFR)
AF:
0.0000307
AC:
1
AN:
32608
American (AMR)
AF:
0.00
AC:
0
AN:
41840
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25838
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39648
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83300
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53304
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5254
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1109230
Other (OTH)
AF:
0.0000500
AC:
3
AN:
59960
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.438
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152352
Hom.:
0
Cov.:
32
AF XY:
0.0000268
AC XY:
2
AN XY:
74508
show subpopulations
African (AFR)
AF:
0.000144
AC:
6
AN:
41584
American (AMR)
AF:
0.00
AC:
0
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000330
AC:
4

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Aicardi-Goutieres syndrome 7;C4225427:Singleton-Merten syndrome 1 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.25
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.42
T
Eigen
Uncertain
0.27
Eigen_PC
Benign
0.21
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.78
T
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.28
T
MetaSVM
Benign
-0.71
T
MutationAssessor
Uncertain
2.4
M
PhyloP100
4.8
PrimateAI
Uncertain
0.58
T
PROVEAN
Pathogenic
-5.6
D
REVEL
Benign
0.22
Sift
Benign
0.050
D
Sift4G
Uncertain
0.028
D
Polyphen
0.85
P
Vest4
0.44
MutPred
0.45
Loss of loop (P = 0.0073)
MVP
0.79
MPC
0.16
ClinPred
0.84
D
GERP RS
4.3
Varity_R
0.89
gMVP
0.67
Mutation Taster
=27/73
disease causing

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

Other links and lift over

dbSNP: rs547782932; hg19: chr2-163123744; API