rs17301766

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_007027.4(TOPBP1):​c.2450C>T​(p.Ser817Leu) variant causes a missense change. The variant allele was found at a frequency of 0.178 in 1,613,762 control chromosomes in the GnomAD database, including 28,141 homozygotes. In-silico tool predicts 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 0.14 ( 1891 hom., cov: 32)
Exomes 𝑓: 0.18 ( 26250 hom. )

Consequence

TOPBP1
NM_007027.4 missense

Scores

1
4
13

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 5.49
Variant links:
Genes affected
TOPBP1 (HGNC:17008): (DNA topoisomerase II binding protein 1) This gene encodes a binding protein which interacts with the C-terminal region of topoisomerase II beta. This interaction suggests a supportive role for this protein in the catalytic reactions of topoisomerase II beta through transient breakages of DNA strands. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0015048087).
BP6
Variant 3-133637946-G-A is Benign according to our data. Variant chr3-133637946-G-A is described in ClinVar as [Benign]. Clinvar id is 670995.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.197 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TOPBP1NM_007027.4 linkuse as main transcriptc.2450C>T p.Ser817Leu missense_variant 14/28 ENST00000260810.10 NP_008958.2 Q92547Q05BV8A0AV47A7E2X7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TOPBP1ENST00000260810.10 linkuse as main transcriptc.2450C>T p.Ser817Leu missense_variant 14/281 NM_007027.4 ENSP00000260810.5 Q92547
TOPBP1ENST00000642236.1 linkuse as main transcriptc.2435C>T p.Ser812Leu missense_variant 14/28 ENSP00000493612.1 A0A2R8YD63

Frequencies

GnomAD3 genomes
AF:
0.144
AC:
21854
AN:
152034
Hom.:
1888
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0753
Gnomad AMI
AF:
0.101
Gnomad AMR
AF:
0.133
Gnomad ASJ
AF:
0.147
Gnomad EAS
AF:
0.000384
Gnomad SAS
AF:
0.0623
Gnomad FIN
AF:
0.172
Gnomad MID
AF:
0.152
Gnomad NFE
AF:
0.200
Gnomad OTH
AF:
0.162
GnomAD3 exomes
AF:
0.141
AC:
35086
AN:
249120
Hom.:
3101
AF XY:
0.143
AC XY:
19316
AN XY:
135146
show subpopulations
Gnomad AFR exome
AF:
0.0742
Gnomad AMR exome
AF:
0.0952
Gnomad ASJ exome
AF:
0.157
Gnomad EAS exome
AF:
0.000557
Gnomad SAS exome
AF:
0.0660
Gnomad FIN exome
AF:
0.159
Gnomad NFE exome
AF:
0.200
Gnomad OTH exome
AF:
0.164
GnomAD4 exome
AF:
0.181
AC:
265279
AN:
1461610
Hom.:
26250
Cov.:
33
AF XY:
0.179
AC XY:
129832
AN XY:
727096
show subpopulations
Gnomad4 AFR exome
AF:
0.0706
Gnomad4 AMR exome
AF:
0.100
Gnomad4 ASJ exome
AF:
0.153
Gnomad4 EAS exome
AF:
0.000428
Gnomad4 SAS exome
AF:
0.0675
Gnomad4 FIN exome
AF:
0.160
Gnomad4 NFE exome
AF:
0.206
Gnomad4 OTH exome
AF:
0.167
GnomAD4 genome
AF:
0.144
AC:
21871
AN:
152152
Hom.:
1891
Cov.:
32
AF XY:
0.141
AC XY:
10448
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.0755
Gnomad4 AMR
AF:
0.133
Gnomad4 ASJ
AF:
0.147
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.0636
Gnomad4 FIN
AF:
0.172
Gnomad4 NFE
AF:
0.200
Gnomad4 OTH
AF:
0.160
Alfa
AF:
0.184
Hom.:
5887
Bravo
AF:
0.140
TwinsUK
AF:
0.218
AC:
807
ALSPAC
AF:
0.214
AC:
824
ESP6500AA
AF:
0.0730
AC:
293
ESP6500EA
AF:
0.195
AC:
1628
ExAC
AF:
0.141
AC:
17039
Asia WGS
AF:
0.0380
AC:
131
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 19, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
TOPBP1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesOct 28, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.083
BayesDel_addAF
Benign
-0.66
T
BayesDel_noAF
Benign
-0.57
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.32
.;T
Eigen
Benign
0.086
Eigen_PC
Benign
0.21
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.84
T;T
MetaRNN
Benign
0.0015
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.7
.;M
PrimateAI
Benign
0.48
T
PROVEAN
Uncertain
-2.5
.;D
REVEL
Benign
0.060
Sift
Uncertain
0.0040
.;D
Sift4G
Benign
0.087
.;T
Polyphen
0.37
.;B
Vest4
0.055
MPC
0.18
ClinPred
0.041
T
GERP RS
5.2
Varity_R
0.13
gMVP
0.37

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: rs17301766; hg19: chr3-133356790; COSMIC: COSV53442711; API