rs10930046

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_022168.4(IFIH1):​c.1379A>T​(p.His460Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,611,952 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H460R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

IFIH1
NM_022168.4 missense

Scores

5
14

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.05
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.38972804).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IFIH1NM_022168.4 linkuse as main transcriptc.1379A>T p.His460Leu missense_variant 7/16 ENST00000649979.2 NP_071451.2
IFIH1XM_047445407.1 linkuse as main transcriptc.662A>T p.His221Leu missense_variant 6/15 XP_047301363.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IFIH1ENST00000649979.2 linkuse as main transcriptc.1379A>T p.His460Leu missense_variant 7/16 NM_022168.4 ENSP00000497271 P1Q9BYX4-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151910
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1460042
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726362
show subpopulations
Gnomad4 AFR exome
AF:
0.0000599
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151910
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74218
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.098
BayesDel_addAF
Benign
-0.093
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
22
DANN
Uncertain
0.97
DEOGEN2
Benign
0.35
T;T;.
Eigen
Benign
-0.24
Eigen_PC
Benign
-0.027
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.24
.;T;T
M_CAP
Benign
0.072
D
MetaRNN
Benign
0.39
T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.51
N;N;.
MutationTaster
Benign
0.20
P;P
PrimateAI
Benign
0.47
T
PROVEAN
Uncertain
-2.6
.;D;.
REVEL
Benign
0.15
Sift
Uncertain
0.0030
.;D;.
Sift4G
Uncertain
0.024
.;D;.
Polyphen
0.0
B;B;.
Vest4
0.30
MutPred
0.60
Loss of disorder (P = 0.0897);Loss of disorder (P = 0.0897);Loss of disorder (P = 0.0897);
MVP
0.68
MPC
0.027
ClinPred
0.84
D
GERP RS
5.9
Varity_R
0.59
gMVP
0.69

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.20
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.20
Position offset: -14

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: rs10930046; hg19: chr2-163137983; API