12-103979993-G-C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_003211.6(TDG):​c.329G>C​(p.Arg110Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,632 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R110H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 34)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TDG
NM_003211.6 missense

Scores

6
10
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.19

Publications

2 publications found
Variant links:
Genes affected
TDG (HGNC:11700): (thymine DNA glycosylase) The protein encoded by this gene belongs to the TDG/mug DNA glycosylase family. Thymine-DNA glycosylase (TDG) removes thymine moieties from G/T mismatches by hydrolyzing the carbon-nitrogen bond between the sugar-phosphate backbone of DNA and the mispaired thymine. With lower activity, this enzyme also removes thymine from C/T and T/T mispairings. TDG can also remove uracil and 5-bromouracil from mispairings with guanine. This enzyme plays a central role in cellular defense against genetic mutation caused by the spontaneous deamination of 5-methylcytosine and cytosine. This gene may have a pseudogene in the p arm of chromosome 12. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TDGNM_003211.6 linkc.329G>C p.Arg110Pro missense_variant Exon 3 of 10 ENST00000392872.8 NP_003202.3 Q13569B4E127

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TDGENST00000392872.8 linkc.329G>C p.Arg110Pro missense_variant Exon 3 of 10 1 NM_003211.6 ENSP00000376611.3 Q13569

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152290
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000589
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
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251280
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000205
AC:
3
AN:
1461342
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
726976
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33458
American (AMR)
AF:
0.0000671
AC:
3
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86218
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5358
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111980
Other (OTH)
AF:
0.00
AC:
0
AN:
60354
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000042), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.358
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152290
Hom.:
0
Cov.:
34
AF XY:
0.0000672
AC XY:
5
AN XY:
74410
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41480
American (AMR)
AF:
0.000589
AC:
9
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5208
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68054
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.353
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.59
D;.;.;T
Eigen
Pathogenic
0.81
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Benign
0.029
D
MetaRNN
Uncertain
0.72
D;D;D;D
MetaSVM
Benign
-0.44
T
MutationAssessor
Uncertain
2.0
M;.;.;.
PhyloP100
9.2
PrimateAI
Uncertain
0.77
T
PROVEAN
Pathogenic
-6.2
D;D;D;D
REVEL
Uncertain
0.50
Sift
Uncertain
0.0010
D;D;D;D
Sift4G
Uncertain
0.0060
D;D;D;D
Polyphen
1.0
D;.;.;.
Vest4
0.92
MutPred
0.41
Loss of MoRF binding (P = 0.0021);.;.;Loss of MoRF binding (P = 0.0021);
MVP
0.85
MPC
1.0
ClinPred
0.99
D
GERP RS
5.1
Varity_R
0.97
gMVP
0.93
Mutation Taster
=91/209
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs776409591; hg19: chr12-104373771; API