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rs746662161

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_018319.4(TDP1):​c.621C>A​(p.Asp207Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,922 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. D207D) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TDP1
NM_018319.4 missense

Scores

1
8
8

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.67
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.848

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TDP1NM_018319.4 linkuse as main transcriptc.621C>A p.Asp207Glu missense_variant 5/17 ENST00000335725.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TDP1ENST00000335725.9 linkuse as main transcriptc.621C>A p.Asp207Glu missense_variant 5/171 NM_018319.4 P1Q9NUW8-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152174
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251484
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135920
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461748
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727182
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152174
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74354
show subpopulations
Gnomad4 AFR
AF:
0.0000724
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000604
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Uncertain
0.070
D
BayesDel_noAF
Uncertain
0.10
CADD
Benign
0.078
DANN
Benign
0.87
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.13
N
LIST_S2
Uncertain
0.86
D;D;.;D;D;D
M_CAP
Benign
0.033
D
MetaRNN
Pathogenic
0.85
D;D;D;D;D;D
MetaSVM
Uncertain
-0.15
T
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-3.3
D;D;D;D;D;D
REVEL
Uncertain
0.42
Sift
Benign
0.080
T;D;D;D;D;D
Sift4G
Uncertain
0.010
D;D;D;D;D;D
Polyphen
0.76
P;.;P;.;P;P
Vest4
0.74
MutPred
0.81
Loss of sheet (P = 0.1501);Loss of sheet (P = 0.1501);Loss of sheet (P = 0.1501);.;Loss of sheet (P = 0.1501);Loss of sheet (P = 0.1501);
MVP
0.19
MPC
0.18
ClinPred
0.69
D
GERP RS
-12
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.7
Varity_R
0.64
gMVP
0.86

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: rs746662161; hg19: chr14-90433728; API