Menu
GeneBe

8-143310198-G-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_052963.3(TOP1MT):​c.1573C>T​(p.Arg525Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.449 in 1,579,896 control chromosomes in the GnomAD database, including 169,713 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.38 ( 13454 hom., cov: 33)
Exomes 𝑓: 0.46 ( 156259 hom. )

Consequence

TOP1MT
NM_052963.3 missense

Scores

6
12

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.176
Variant links:
Genes affected
TOP1MT (HGNC:29787): (DNA topoisomerase I mitochondrial) This gene encodes a mitochondrial DNA topoisomerase that plays a role in the modification of DNA topology. The encoded protein is a type IB topoisomerase and catalyzes the transient breaking and rejoining of DNA to relieve tension and DNA supercoiling generated in the mitochondrial genome during replication and transcription. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, May 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=4.9609944E-6).
BP6
Variant 8-143310198-G-A is Benign according to our data. Variant chr8-143310198-G-A is described in ClinVar as [Benign]. Clinvar id is 1645532.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.664 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TOP1MTNM_052963.3 linkuse as main transcriptc.1573C>T p.Arg525Trp missense_variant 13/14 ENST00000329245.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TOP1MTENST00000329245.9 linkuse as main transcriptc.1573C>T p.Arg525Trp missense_variant 13/141 NM_052963.3 P1Q969P6-1

Frequencies

GnomAD3 genomes
AF:
0.376
AC:
57154
AN:
151956
Hom.:
13436
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0975
Gnomad AMI
AF:
0.467
Gnomad AMR
AF:
0.556
Gnomad ASJ
AF:
0.346
Gnomad EAS
AF:
0.683
Gnomad SAS
AF:
0.636
Gnomad FIN
AF:
0.523
Gnomad MID
AF:
0.301
Gnomad NFE
AF:
0.441
Gnomad OTH
AF:
0.387
GnomAD3 exomes
AF:
0.505
AC:
107399
AN:
212494
Hom.:
29468
AF XY:
0.511
AC XY:
58990
AN XY:
115490
show subpopulations
Gnomad AFR exome
AF:
0.0907
Gnomad AMR exome
AF:
0.682
Gnomad ASJ exome
AF:
0.362
Gnomad EAS exome
AF:
0.708
Gnomad SAS exome
AF:
0.637
Gnomad FIN exome
AF:
0.537
Gnomad NFE exome
AF:
0.446
Gnomad OTH exome
AF:
0.471
GnomAD4 exome
AF:
0.457
AC:
652480
AN:
1427822
Hom.:
156259
Cov.:
41
AF XY:
0.462
AC XY:
326913
AN XY:
707740
show subpopulations
Gnomad4 AFR exome
AF:
0.0806
Gnomad4 AMR exome
AF:
0.661
Gnomad4 ASJ exome
AF:
0.343
Gnomad4 EAS exome
AF:
0.704
Gnomad4 SAS exome
AF:
0.627
Gnomad4 FIN exome
AF:
0.528
Gnomad4 NFE exome
AF:
0.440
Gnomad4 OTH exome
AF:
0.440
GnomAD4 genome
AF:
0.376
AC:
57188
AN:
152074
Hom.:
13454
Cov.:
33
AF XY:
0.389
AC XY:
28937
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.0973
Gnomad4 AMR
AF:
0.557
Gnomad4 ASJ
AF:
0.346
Gnomad4 EAS
AF:
0.683
Gnomad4 SAS
AF:
0.635
Gnomad4 FIN
AF:
0.523
Gnomad4 NFE
AF:
0.441
Gnomad4 OTH
AF:
0.390
Alfa
AF:
0.429
Hom.:
13535
Bravo
AF:
0.364
TwinsUK
AF:
0.430
AC:
1593
ALSPAC
AF:
0.450
AC:
1734
ESP6500AA
AF:
0.0987
AC:
434
ESP6500EA
AF:
0.441
AC:
3794
ExAC
AF:
0.470
AC:
56544
Asia WGS
AF:
0.610
AC:
2123
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.56
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.35
T;.;.;.
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.28
N
LIST_S2
Uncertain
0.89
D;.;.;D
MetaRNN
Benign
0.0000050
T;T;T;T
MetaSVM
Benign
-0.94
T
MutationAssessor
Uncertain
2.3
M;.;.;.
MutationTaster
Benign
1.0
P;P;P;P
PrimateAI
Benign
0.36
T
PROVEAN
Uncertain
-4.3
D;D;D;D
REVEL
Benign
0.14
Sift
Uncertain
0.019
D;D;D;D
Sift4G
Uncertain
0.0020
D;D;D;D
Polyphen
0.99
D;.;.;.
Vest4
0.12
MPC
0.19
ClinPred
0.043
T
GERP RS
-3.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.3
Varity_R
0.12
gMVP
0.24

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: rs2293925; hg19: chr8-144392368; COSMIC: COSV61319143; API