1-39883459-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_017646.6(TRIT1):​c.33C>T​(p.Pro11=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.421 in 1,603,634 control chromosomes in the GnomAD database, including 144,664 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.46 ( 16390 hom., cov: 32)
Exomes 𝑓: 0.42 ( 128274 hom. )

Consequence

TRIT1
NM_017646.6 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.156
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.67).
BP6
Variant 1-39883459-G-A is Benign according to our data. Variant chr1-39883459-G-A is described in ClinVar as [Benign]. Clinvar id is 1342274.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.156 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.578 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TRIT1NM_017646.6 linkuse as main transcriptc.33C>T p.Pro11= synonymous_variant 1/11 ENST00000316891.10
MYCL-AS1NR_183424.1 linkuse as main transcriptn.272+38G>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TRIT1ENST00000316891.10 linkuse as main transcriptc.33C>T p.Pro11= synonymous_variant 1/111 NM_017646.6 P1Q9H3H1-1

Frequencies

GnomAD3 genomes
AF:
0.457
AC:
69412
AN:
151940
Hom.:
16359
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.576
Gnomad AMI
AF:
0.209
Gnomad AMR
AF:
0.432
Gnomad ASJ
AF:
0.474
Gnomad EAS
AF:
0.596
Gnomad SAS
AF:
0.456
Gnomad FIN
AF:
0.398
Gnomad MID
AF:
0.285
Gnomad NFE
AF:
0.393
Gnomad OTH
AF:
0.414
GnomAD3 exomes
AF:
0.442
AC:
108640
AN:
246060
Hom.:
24629
AF XY:
0.434
AC XY:
58089
AN XY:
133950
show subpopulations
Gnomad AFR exome
AF:
0.582
Gnomad AMR exome
AF:
0.472
Gnomad ASJ exome
AF:
0.466
Gnomad EAS exome
AF:
0.595
Gnomad SAS exome
AF:
0.448
Gnomad FIN exome
AF:
0.403
Gnomad NFE exome
AF:
0.392
Gnomad OTH exome
AF:
0.411
GnomAD4 exome
AF:
0.418
AC:
606042
AN:
1451576
Hom.:
128274
Cov.:
45
AF XY:
0.417
AC XY:
300368
AN XY:
719920
show subpopulations
Gnomad4 AFR exome
AF:
0.583
Gnomad4 AMR exome
AF:
0.461
Gnomad4 ASJ exome
AF:
0.474
Gnomad4 EAS exome
AF:
0.603
Gnomad4 SAS exome
AF:
0.444
Gnomad4 FIN exome
AF:
0.408
Gnomad4 NFE exome
AF:
0.401
Gnomad4 OTH exome
AF:
0.432
GnomAD4 genome
AF:
0.457
AC:
69491
AN:
152058
Hom.:
16390
Cov.:
32
AF XY:
0.456
AC XY:
33903
AN XY:
74334
show subpopulations
Gnomad4 AFR
AF:
0.576
Gnomad4 AMR
AF:
0.433
Gnomad4 ASJ
AF:
0.474
Gnomad4 EAS
AF:
0.596
Gnomad4 SAS
AF:
0.455
Gnomad4 FIN
AF:
0.398
Gnomad4 NFE
AF:
0.393
Gnomad4 OTH
AF:
0.414
Alfa
AF:
0.424
Hom.:
10113
Bravo
AF:
0.465
Asia WGS
AF:
0.555
AC:
1930
AN:
3478
EpiCase
AF:
0.390
EpiControl
AF:
0.384

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Combined oxidative phosphorylation deficiency 35 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabSep 10, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.67
CADD
Benign
7.6
DANN
Benign
0.83
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs3845570; hg19: chr1-40349131; COSMIC: COSV57547751; COSMIC: COSV57547751; API