3-9371165-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000452837.7(THUMPD3):​c.436C>T​(p.Arg146Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000472 in 1,611,326 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

THUMPD3
ENST00000452837.7 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.72
Variant links:
Genes affected
THUMPD3 (HGNC:24493): (THUMP domain containing 3) Predicted to enable tRNA (guanine) methyltransferase activity. Predicted to be involved in tRNA methylation. Located in cytosol and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.066109866).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
THUMPD3NM_001114092.2 linkuse as main transcriptc.436C>T p.Arg146Cys missense_variant 4/10 ENST00000452837.7 NP_001107564.1 Q9BV44A0A024R2D3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
THUMPD3ENST00000452837.7 linkuse as main transcriptc.436C>T p.Arg146Cys missense_variant 4/101 NM_001114092.2 ENSP00000395893.2 Q9BV44

Frequencies

GnomAD3 genomes
AF:
0.0000922
AC:
14
AN:
151844
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000266
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:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000402
AC:
10
AN:
248556
Hom.:
0
AF XY:
0.0000297
AC XY:
4
AN XY:
134470
show subpopulations
Gnomad AFR exome
AF:
0.000443
Gnomad AMR exome
AF:
0.0000293
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:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000425
AC:
62
AN:
1459364
Hom.:
0
Cov.:
32
AF XY:
0.0000413
AC XY:
30
AN XY:
725724
show subpopulations
Gnomad4 AFR exome
AF:
0.000270
Gnomad4 AMR exome
AF:
0.0000226
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000414
Gnomad4 OTH exome
AF:
0.0000829
GnomAD4 genome
AF:
0.0000921
AC:
14
AN:
151962
Hom.:
0
Cov.:
33
AF XY:
0.0000943
AC XY:
7
AN XY:
74238
show subpopulations
Gnomad4 AFR
AF:
0.000265
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:
0.0000294
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000113
Hom.:
0
Bravo
AF:
0.0000945
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 12, 2021The c.436C>T (p.R146C) alteration is located in exon 4 (coding exon 3) of the THUMPD3 gene. This alteration results from a C to T substitution at nucleotide position 436, causing the arginine (R) at amino acid position 146 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.076
T;T;T
Eigen
Benign
-0.069
Eigen_PC
Benign
0.10
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.80
.;.;T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.066
T;T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Uncertain
2.0
M;M;M
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Benign
0.29
T
PROVEAN
Uncertain
-3.3
D;D;D
REVEL
Benign
0.063
Sift
Benign
0.057
T;T;T
Sift4G
Benign
0.20
T;T;T
Polyphen
0.10
B;B;B
Vest4
0.19
MVP
0.59
MPC
0.068
ClinPred
0.10
T
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.21
gMVP
0.41

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: rs141407615; hg19: chr3-9412849; API