Variant 1-39883470-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_017646.6(TRIT1):c.22C>G(p.Arg8Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000689 in 1,595,904 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. 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. R8L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

TRIT1
NM_017646.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.669

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:

TRIT1 (HGNC:):

TRIT1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20355093).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRIT1	NM_017646.6 linkuse as main transcript	c.22C>G	p.Arg8Gly	missense_variant	1/11	ENST00000316891.10	NP_060116.2	Q9H3H1-1Q53F11Q3T7C7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TRIT1	ENST00000316891.10 linkuse as main transcript	c.22C>G	p.Arg8Gly	missense_variant	1/11	1	NM_017646.6	ENSP00000321810.5	Q9H3H1-1
TRIT1	ENST00000372818.5 linkuse as main transcript	c.22C>G	p.Arg8Gly	missense_variant	1/10	1		ENSP00000361905.1	Q9H3H1-4
TRIT1	ENST00000462797.5 linkuse as main transcript	n.22C>G		non_coding_transcript_exon_variant	1/10	5		ENSP00000473773.1	S4R2Z0
TRIT1	ENST00000486825.6 linkuse as main transcript	n.4C>G		non_coding_transcript_exon_variant	1/8	5		ENSP00000474151.1	S4R3C5
TRIT1	ENST00000489945.5 linkuse as main transcript	n.22C>G		non_coding_transcript_exon_variant	1/7	5		ENSP00000473745.1	B4DK89
TRIT1	ENST00000492612.6 linkuse as main transcript	n.10C>G		non_coding_transcript_exon_variant	1/9	5		ENSP00000473708.1	S4R2X1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

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:

0.00000412

AC:

AN:

242456

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132626

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000693

AC:

AN:

1443734

Hom.:

Cov.:

AF XY:

0.00000420

AC XY:

AN XY:

714352

show subpopulations

Gnomad4 AFR exome

AF:

0.0000907

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000233

Gnomad4 FIN exome

AF:

0.0000190

Gnomad4 NFE exome

AF:

0.00000364

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74324

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000656

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

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Apr 16, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.097

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.41

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.034

.;T;.

Eigen

Benign

-0.35

Eigen_PC

Benign

-0.32

FATHMM_MKL

Benign

0.50

LIST_S2

Uncertain

0.87

D;D;D

M_CAP

Benign

0.026

MetaRNN

Benign

0.20

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.95

L;L;L

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-0.79

.;N;N

REVEL

Benign

0.11

Sift

Uncertain

0.013

.;D;D

Sift4G

Benign

0.11

T;D;D

Polyphen

0.95

P;B;.

Vest4

0.57

MVP

0.63

MPC

0.37

ClinPred

0.30

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.11

gMVP

0.64

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