Variant 1-39844103-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_017646.6(TRIT1):c.1232C>T(p.Ala411Val) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000137 in 1,458,732 control chromosomes in the GnomAD database, with no homozygous occurrence. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A411S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TRIT1
NM_017646.6 missense, splice_region

Scores

Splicing: ADA: 0.9999

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.67

Variant links:

Genes affected

TRIT1 (HGNC:20286): (tRNA isopentenyltransferase 1) This gene encodes a protein that that is targeted to the mitochondrion and modifies transfer RNAs (tRNAs) by adding a dimethylallyl group onto the adenine at position 37. This modification is important for maintaining the correct reading frame during protein translation. This gene is considered a tumor suppressor and its expression can decrease cell growth. Alternative splicing results in multiple transcripts variants, most of which are likely non-functional. [provided by RefSeq, Aug 2015]

TRIT1 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

Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TRIT1	NM_017646.6 linkuse as main transcript	c.1232C>T	p.Ala411Val	missense_variant, splice_region_variant	10/11	ENST00000316891.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TRIT1	ENST00000316891.10 linkuse as main transcript	c.1232C>T	p.Ala411Val	missense_variant, splice_region_variant	10/11	1	NM_017646.6	P1	Q9H3H1-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1458732

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

725966

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Combined oxidative phosphorylation deficiency 35

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Revvity Omics, Revvity

Jul 26, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.022

BayesDel_noAF

Benign

-0.27

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.051

.;.;T;.;.

Eigen

Uncertain

0.61

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.96

D;D;D;D;D

M_CAP

Benign

0.015

MetaRNN

Uncertain

0.46

T;T;T;T;T

MetaSVM

Benign

-0.77

MutationAssessor

Uncertain

2.4

.;.;M;.;.

MutationTaster

Benign

1.0

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

PrimateAI

Benign

0.46

PROVEAN

Benign

-2.0

N;.;N;N;D

REVEL

Benign

0.097

Sift

Benign

0.063

T;.;T;T;D

Sift4G

Uncertain

0.026

D;T;T;T;D

Polyphen

0.93, 0.83, 0.78

.;P;P;P;.

Vest4

0.54

MutPred

0.35

.;.;Gain of methylation at K415 (P = 0.0744);.;.;

MVP

0.68

MPC

0.43

ClinPred

0.87

GERP RS

6.0

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.6

Varity_R

0.21

gMVP

0.16

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.99

SpliceAI score (max)

1.0

Details are displayed if max score is > 0.2

DS_DG_spliceai

1.0

Position offset: 2

DS_DL_spliceai

0.93

Position offset: -2

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

Publications

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over