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GeneBe

9-97910350-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_016481.5(TRMO):c.676A>G(p.Thr226Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,614,110 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

TRMO
NM_016481.5 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.00400
Variant links:
Genes affected
TRMO (HGNC:30967): (tRNA methyltransferase O) Enables tRNA (adenine-N6-)-methyltransferase activity. Involved in tRNA methylation. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.029152185).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TRMONM_016481.5 linkuse as main transcriptc.676A>G p.Thr226Ala missense_variant 4/5 ENST00000375119.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TRMOENST00000375119.8 linkuse as main transcriptc.676A>G p.Thr226Ala missense_variant 4/51 NM_016481.5 P1
TRMOENST00000375118.1 linkuse as main transcriptc.238A>G p.Thr80Ala missense_variant 1/21
TRMOENST00000375117.8 linkuse as main transcriptc.*296A>G 3_prime_UTR_variant 5/53
TRMOENST00000478126.5 linkuse as main transcriptn.480A>G non_coding_transcript_exon_variant 3/32

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152248
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251462
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135904
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461862
Hom.:
0
Cov.:
33
AF XY:
0.00000275
AC XY:
2
AN XY:
727230
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:
0.00000630
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152248
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74392
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsOct 03, 2023The c.676A>G (p.T226A) alteration is located in exon 4 (coding exon 4) of the TRMO gene. This alteration results from a A to G substitution at nucleotide position 676, causing the threonine (T) at amino acid position 226 to be replaced by an alanine (A). 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
-0.33
T
BayesDel_noAF
Benign
-0.70
Cadd
Benign
5.8
Dann
Benign
0.79
DEOGEN2
Benign
0.0063
T;T;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.043
N
LIST_S2
Benign
0.55
T;T;T
M_CAP
Benign
0.0034
T
MetaRNN
Benign
0.029
T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N
PROVEAN
Benign
-0.67
N;N;.
REVEL
Benign
0.021
Sift
Benign
0.25
T;T;.
Sift4G
Benign
0.40
T;T;T
Polyphen
0.0010
B;B;B
Vest4
0.033
MutPred
0.15
Loss of phosphorylation at T226 (P = 0.0473);.;.;
MVP
0.048
MPC
0.12
ClinPred
0.043
T
GERP RS
-5.5
Varity_R
0.034
gMVP
0.19

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: rs777707868; hg19: chr9-100672632; API