9-97475407-T-A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4BS1_Supporting

The NM_014290.3(TDRD7):​c.2104T>A​(p.Ser702Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000725 in 1,613,650 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000073 ( 0 hom. )

Consequence

TDRD7
NM_014290.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.66

Publications

0 publications found
Variant links:
Genes affected
TDRD7 (HGNC:30831): (tudor domain containing 7) The protein encoded by this gene belongs to the Tudor family of proteins. This protein contains conserved Tudor domains and LOTUS domains. It is a component of RNA granules, which function in RNA processing. Mutations in this gene have been associated with cataract formation in mouse and human. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2014]
TDRD7 Gene-Disease associations (from GenCC):
  • cataract 36
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.31092477).
BS1
Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.0000732 (107/1461404) while in subpopulation NFE AF = 0.0000846 (94/1111742). AF 95% confidence interval is 0.0000705. There are 0 homozygotes in GnomAdExome4. There are 57 alleles in the male GnomAdExome4 subpopulation. Median coverage is 30. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TDRD7NM_014290.3 linkc.2104T>A p.Ser702Thr missense_variant Exon 12 of 17 ENST00000355295.5 NP_055105.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TDRD7ENST00000355295.5 linkc.2104T>A p.Ser702Thr missense_variant Exon 12 of 17 1 NM_014290.3 ENSP00000347444.4

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152246
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000723
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000399
AC:
10
AN:
250816
AF XY:
0.0000369
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000617
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000732
AC:
107
AN:
1461404
Hom.:
0
Cov.:
30
AF XY:
0.0000784
AC XY:
57
AN XY:
726984
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33458
American (AMR)
AF:
0.0000224
AC:
1
AN:
44688
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26122
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.0000696
AC:
6
AN:
86218
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53364
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000846
AC:
94
AN:
1111742
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
6
12
18
24
30
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74388
show subpopulations
African (AFR)
AF:
0.0000723
AC:
3
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5206
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68036
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000113
Hom.:
0
Bravo
AF:
0.0000604
ExAC
AF:
0.0000165
AC:
2

ClinVar

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

Submissions by phenotype

Cataract 36 Uncertain:1
Jun 25, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces serine, which is neutral and polar, with threonine, which is neutral and polar, at codon 702 of the TDRD7 protein (p.Ser702Thr). This variant is present in population databases (no rsID available, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with TDRD7-related conditions. ClinVar contains an entry for this variant (Variation ID: 471809). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.15
T
Eigen
Benign
0.16
Eigen_PC
Benign
0.047
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.79
T
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.31
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
4.7
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
-0.91
N
REVEL
Benign
0.21
Sift
Benign
0.036
D
Sift4G
Uncertain
0.018
D
Polyphen
0.99
D
Vest4
0.42
MVP
0.42
MPC
0.27
ClinPred
0.18
T
GERP RS
1.4
Varity_R
0.072
gMVP
0.53
Mutation Taster
=94/6
polymorphism

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

Other links and lift over

dbSNP: rs946019953; hg19: chr9-100237689; API