Genetic Variant TRPT1:p.Gly131Asp (chr11-64224653-C-T) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

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

The NM_001033678.4(TRPT1):c.392G>A(p.Gly131Asp) variant causes a missense change. The variant allele was found at a frequency of 0.0000143 in 1,607,870 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 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

TRPT1
NM_001033678.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.88

Variant links:

Genes affected

TRPT1 (HGNC:20316): (tRNA phosphotransferase 1) Predicted to enable tRNA 2'-phosphotransferase activity. Predicted to be involved in tRNA splicing, via endonucleolytic cleavage and ligation. Predicted to act upstream of or within regulation of protein kinase activity. [provided by Alliance of Genome Resources, Apr 2022]

TRPT1 links:

Genome browser will be placed here

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, 0.908

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TRPT1	NM_001033678.4 link	c.392G>A	p.Gly131Asp	missense_variant	Exon 5 of 8	ENST00000317459.11	NP_001028850.2	Q86TN4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TRPT1	ENST00000317459.11 link	c.392G>A	p.Gly131Asp	missense_variant	Exon 5 of 8	1	NM_001033678.4	ENSP00000314073.6		Q86TN4-1

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.0000122

AC:

AN:

244946

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132260

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.0000294

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:

0.0000124

AC:

AN:

1455678

Hom.:

Cov.:

AF XY:

0.00000829

AC XY:

AN XY:

723780

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.0000226

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:

0.00000902

Gnomad4 OTH exome

AF:

0.0000499

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152192

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74348

show subpopulations

Gnomad4 AFR

AF:

0.000121

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

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000416

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.398G>A (p.G133D) alteration is located in exon 5 (coding exon 4) of the TRPT1 gene. This alteration results from a G to A substitution at nucleotide position 398, causing the glycine (G) at amino acid position 133 to be replaced by an aspartic acid (D). 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

Pathogenic

0.83

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Pathogenic

0.27

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.42

.;.;.;T;T;T;T

Eigen

Pathogenic

0.88

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.83

T;T;T;T;T;T;T

M_CAP

Uncertain

0.26

MetaRNN

Pathogenic

0.91

D;D;D;D;D;D;D

MetaSVM

Uncertain

0.49

MutationAssessor

Pathogenic

4.4

.;H;.;.;H;.;.

PrimateAI

Uncertain

0.65

PROVEAN

Pathogenic

-6.5

D;D;D;D;D;D;D

REVEL

Pathogenic

0.68

Sift

Uncertain

0.0030

D;D;D;D;D;D;D

Sift4G

Uncertain

0.0050

D;D;D;D;D;D;D

Polyphen

1.0

D;.;.;.;D;.;.

Vest4

0.92

MVP

0.92

MPC

0.95

ClinPred

0.99

GERP RS

4.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.95

gMVP

0.98

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over