chr20-3865997-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_020746.5(MAVS):​c.1473C>T​(p.Gly491=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00163 in 1,612,844 control chromosomes in the GnomAD database, including 32 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0087 ( 21 hom., cov: 33)
Exomes 𝑓: 0.00089 ( 11 hom. )

Consequence

MAVS
NM_020746.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.14
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 20-3865997-C-T is Benign according to our data. Variant chr20-3865997-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 782664.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.14 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00873 (1330/152272) while in subpopulation AFR AF= 0.0303 (1258/41554). AF 95% confidence interval is 0.0289. There are 21 homozygotes in gnomad4. There are 616 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 1330 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MAVSNM_020746.5 linkuse as main transcriptc.1473C>T p.Gly491= synonymous_variant 7/7 ENST00000428216.4
MAVSNM_001206491.2 linkuse as main transcriptc.1050C>T p.Gly350= synonymous_variant 6/6
MAVSNM_001385663.1 linkuse as main transcriptc.1050C>T p.Gly350= synonymous_variant 8/8
MAVSNR_037921.2 linkuse as main transcriptn.1437C>T non_coding_transcript_exon_variant 6/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MAVSENST00000428216.4 linkuse as main transcriptc.1473C>T p.Gly491= synonymous_variant 7/71 NM_020746.5 P1Q7Z434-1
MAVSENST00000416600.6 linkuse as main transcriptc.1050C>T p.Gly350= synonymous_variant 6/61 Q7Z434-4

Frequencies

GnomAD3 genomes
AF:
0.00873
AC:
1329
AN:
152154
Hom.:
21
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0303
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00295
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00909
GnomAD3 exomes
AF:
0.00206
AC:
509
AN:
247310
Hom.:
6
AF XY:
0.00140
AC XY:
188
AN XY:
134612
show subpopulations
Gnomad AFR exome
AF:
0.0294
Gnomad AMR exome
AF:
0.00107
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000981
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000539
Gnomad OTH exome
AF:
0.000827
GnomAD4 exome
AF:
0.000892
AC:
1303
AN:
1460572
Hom.:
11
Cov.:
32
AF XY:
0.000778
AC XY:
565
AN XY:
726632
show subpopulations
Gnomad4 AFR exome
AF:
0.0325
Gnomad4 AMR exome
AF:
0.00134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000243
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000225
Gnomad4 OTH exome
AF:
0.00169
GnomAD4 genome
AF:
0.00873
AC:
1330
AN:
152272
Hom.:
21
Cov.:
33
AF XY:
0.00827
AC XY:
616
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.0303
Gnomad4 AMR
AF:
0.00294
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00900
Alfa
AF:
0.00233
Hom.:
3
Bravo
AF:
0.00995
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpMay 17, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
3.7
DANN
Benign
0.33

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs61739401; hg19: chr20-3846644; API