rs368969696

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_018319.4(TDP1):​c.1081C>T​(p.Arg361Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000298 in 1,611,364 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

TDP1
NM_018319.4 missense

Scores

5
11
3

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.69
Variant links:
Genes affected
TDP1 (HGNC:18884): (tyrosyl-DNA phosphodiesterase 1) The protein encoded by this gene is involved in repairing stalled topoisomerase I-DNA complexes by catalyzing the hydrolysis of the phosphodiester bond between the tyrosine residue of topoisomerase I and the 3-prime phosphate of DNA. This protein may also remove glycolate from single-stranded DNA containing 3-prime phosphoglycolate, suggesting a role in repair of free-radical mediated DNA double-strand breaks. This gene is a member of the phospholipase D family and contains two PLD phosphodiesterase domains. Mutations in this gene are associated with the disease spinocerebellar ataxia with axonal neuropathy (SCAN1). [provided by RefSeq, Aug 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.77

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TDP1NM_018319.4 linkuse as main transcriptc.1081C>T p.Arg361Cys missense_variant 10/17 ENST00000335725.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TDP1ENST00000335725.9 linkuse as main transcriptc.1081C>T p.Arg361Cys missense_variant 10/171 NM_018319.4 P1Q9NUW8-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152048
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000399
AC:
10
AN:
250334
Hom.:
0
AF XY:
0.0000517
AC XY:
7
AN XY:
135336
show subpopulations
Gnomad AFR exome
AF:
0.0000618
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000657
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000618
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000302
AC:
44
AN:
1459198
Hom.:
0
Cov.:
29
AF XY:
0.0000275
AC XY:
20
AN XY:
725952
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.0000233
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000333
Gnomad4 OTH exome
AF:
0.0000498
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152166
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74406
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000264
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000412
AC:
5
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 10, 2024The c.1081C>T (p.R361C) alteration is located in exon 10 (coding exon 8) of the TDP1 gene. This alteration results from a C to T substitution at nucleotide position 1081, causing the arginine (R) at amino acid position 361 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Uncertain significance, criteria provided, single submitterclinical testingAthena DiagnosticsApr 18, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
0.13
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.55
.;D;D;.
Eigen
Benign
0.063
Eigen_PC
Benign
0.047
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Pathogenic
0.97
D;.;D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Pathogenic
0.77
D;D;D;D
MetaSVM
Uncertain
-0.24
T
MutationAssessor
Pathogenic
3.4
.;M;M;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Pathogenic
-4.9
D;D;D;D
REVEL
Uncertain
0.39
Sift
Uncertain
0.028
D;D;D;D
Sift4G
Uncertain
0.053
T;T;T;T
Polyphen
1.0
D;D;D;D
Vest4
0.84
MVP
0.55
MPC
0.49
ClinPred
0.91
D
GERP RS
3.7
Varity_R
0.55
gMVP
0.82

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: rs368969696; hg19: chr14-90451504; API