20-5942697-C-T

Variant summary

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

The NM_015939.5(TRMT6):​c.757G>A​(p.Gly253Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000632 in 1,613,938 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000066 ( 0 hom. )

Consequence

TRMT6
NM_015939.5 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.60
Variant links:
Genes affected
TRMT6 (HGNC:20900): (tRNA methyltransferase 6 non-catalytic subunit) This gene encodes a member of the tRNA methyltransferase 6 protein family. A similar protein in yeast is part of a two component methyltransferase, which is involved in the posttranslational modification that produces the modified nucleoside 1-methyladenosine in tRNAs. Modified 1-methyladenosine influences initiator methionine stability and may be involved in the replication of human immunodeficiency virus type 1. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

Genome browser will be placed here

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=0.09603822).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TRMT6NM_015939.5 linkuse as main transcriptc.757G>A p.Gly253Ser missense_variant 7/11 ENST00000203001.7 NP_057023.2 Q9UJA5-1
TRMT6NM_001281467.2 linkuse as main transcriptc.247G>A p.Gly83Ser missense_variant 6/10 NP_001268396.1 Q9UJA5-4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TRMT6ENST00000203001.7 linkuse as main transcriptc.757G>A p.Gly253Ser missense_variant 7/111 NM_015939.5 ENSP00000203001.2 Q9UJA5-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152064
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000588
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000719
AC:
18
AN:
250274
Hom.:
0
AF XY:
0.0000665
AC XY:
9
AN XY:
135410
show subpopulations
Gnomad AFR exome
AF:
0.0000617
Gnomad AMR exome
AF:
0.000202
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:
0.0000710
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000664
AC:
97
AN:
1461874
Hom.:
0
Cov.:
32
AF XY:
0.0000605
AC XY:
44
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000201
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:
0.0000746
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152064
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74290
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000588
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000718
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000659
AC:
8
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

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 GeneticsDec 10, 2024The c.757G>A (p.G253S) alteration is located in exon 7 (coding exon 7) of the TRMT6 gene. This alteration results from a G to A substitution at nucleotide position 757, causing the glycine (G) at amino acid position 253 to be replaced by a serine (S). 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
0.071
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
19
DANN
Benign
0.89
DEOGEN2
Benign
0.0074
T;.
Eigen
Benign
-0.25
Eigen_PC
Benign
0.016
FATHMM_MKL
Benign
0.70
D
LIST_S2
Benign
0.79
T;T
M_CAP
Benign
0.0061
T
MetaRNN
Benign
0.096
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
-0.41
N;.
PrimateAI
Benign
0.37
T
PROVEAN
Benign
1.4
N;N
REVEL
Benign
0.073
Sift
Benign
0.75
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.063
B;.
Vest4
0.039
MVP
0.28
MPC
0.30
ClinPred
0.039
T
GERP RS
5.2
Varity_R
0.094
gMVP
0.57

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs138599064; hg19: chr20-5923343; API