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GeneBe

20-3857807-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_020746.5(MAVS):​c.290C>T​(p.Pro97Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000415 in 1,614,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

MAVS
NM_020746.5 missense, splice_region

Scores

2
17
Splicing: ADA: 0.8376
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0310
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 -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.11537105).
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.290C>T p.Pro97Leu missense_variant, splice_region_variant 3/7 ENST00000428216.4
MAVSNM_001385663.1 linkuse as main transcriptc.-258C>T splice_region_variant, 5_prime_UTR_variant 3/8
MAVSNM_001206491.2 linkuse as main transcriptc.-132+3066C>T intron_variant
MAVSNR_037921.2 linkuse as main transcriptn.427C>T splice_region_variant, non_coding_transcript_exon_variant 3/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MAVSENST00000428216.4 linkuse as main transcriptc.290C>T p.Pro97Leu missense_variant, splice_region_variant 3/71 NM_020746.5 P1Q7Z434-1
MAVSENST00000416600.6 linkuse as main transcriptc.-132+3066C>T intron_variant 1 Q7Z434-4

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152224
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000636
AC:
16
AN:
251406
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135888
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000114
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000417
AC:
61
AN:
1461856
Hom.:
0
Cov.:
33
AF XY:
0.0000371
AC XY:
27
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000927
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000459
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000579
Hom.:
0
Bravo
AF:
0.0000491
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000659
AC:
8
EpiCase
AF:
0.00
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 GeneticsAug 12, 2021The c.290C>T (p.P97L) alteration is located in exon 3 (coding exon 2) of the MAVS gene. This alteration results from a C to T substitution at nucleotide position 290, causing the proline (P) at amino acid position 97 to be replaced by a leucine (L). 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
0.17
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
15
DANN
Uncertain
0.99
DEOGEN2
Benign
0.36
T
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.32
FATHMM_MKL
Benign
0.16
N
LIST_S2
Benign
0.56
T
M_CAP
Benign
0.0097
T
MetaRNN
Benign
0.12
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.8
L
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-3.7
D
REVEL
Benign
0.043
Sift
Benign
0.092
T
Sift4G
Benign
0.22
T
Polyphen
0.39
B
Vest4
0.15
MVP
0.58
MPC
0.52
ClinPred
0.24
T
GERP RS
3.7
Varity_R
0.23
gMVP
0.13

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.84
dbscSNV1_RF
Benign
0.59
SpliceAI score (max)
0.040
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: rs367892824; hg19: chr20-3838454; API