20-3864403-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM1BP4_ModerateBS2

The NM_020746.5(MAVS):​c.773C>T​(p.Ser258Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000446 in 1,613,954 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

MAVS
NM_020746.5 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.932
Variant links:
Genes affected
MAVS (HGNC:29233): (mitochondrial antiviral signaling protein) This gene encodes an intermediary protein necessary in the virus-triggered beta interferon signaling pathways. It is required for activation of transcription factors which regulate expression of beta interferon and contributes to antiviral innate immunity. [provided by RefSeq, Jul 2020]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM1
In a modified_residue Phosphoserine (size 0) in uniprot entity MAVS_HUMAN
BP4
Computational evidence support a benign effect (MetaRNN=0.13516995).
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MAVSNM_020746.5 linkuse as main transcriptc.773C>T p.Ser258Phe missense_variant 6/7 ENST00000428216.4
MAVSNM_001206491.2 linkuse as main transcriptc.350C>T p.Ser117Phe missense_variant 5/6
MAVSNM_001385663.1 linkuse as main transcriptc.350C>T p.Ser117Phe missense_variant 7/8
MAVSNR_037921.2 linkuse as main transcriptn.737C>T non_coding_transcript_exon_variant 5/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MAVSENST00000428216.4 linkuse as main transcriptc.773C>T p.Ser258Phe missense_variant 6/71 NM_020746.5 P1Q7Z434-1
MAVSENST00000416600.6 linkuse as main transcriptc.350C>T p.Ser117Phe missense_variant 5/61 Q7Z434-4

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152132
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.00
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:
0.0000796
AC:
20
AN:
251338
Hom.:
0
AF XY:
0.0000957
AC XY:
13
AN XY:
135864
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00109
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000451
AC:
66
AN:
1461822
Hom.:
0
Cov.:
33
AF XY:
0.0000468
AC XY:
34
AN XY:
727214
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00119
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000216
Gnomad4 OTH exome
AF:
0.0000993
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152132
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74300
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.000576
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000131
Hom.:
0
Bravo
AF:
0.0000604
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

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 GeneticsJan 23, 2024The c.773C>T (p.S258F) alteration is located in exon 6 (coding exon 5) of the MAVS gene. This alteration results from a C to T substitution at nucleotide position 773, causing the serine (S) at amino acid position 258 to be replaced by a phenylalanine (F). 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
0.12
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.28
.;T
Eigen
Benign
-0.17
Eigen_PC
Benign
-0.38
FATHMM_MKL
Benign
0.069
N
LIST_S2
Benign
0.61
T;T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
.;L
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.41
T
PROVEAN
Uncertain
-3.8
D;D
REVEL
Benign
0.063
Sift
Uncertain
0.015
D;D
Sift4G
Uncertain
0.0050
D;D
Polyphen
1.0
.;D
Vest4
0.33
MVP
0.75
MPC
0.41
ClinPred
0.43
T
GERP RS
1.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.11
gMVP
0.27

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs749064057; hg19: chr20-3845050; API