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GeneBe

9-97904794-G-A

Variant summary

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

The NM_016481.5(TRMO):c.1265C>T(p.Pro422Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,614,020 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/19 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: 0.000030 ( 1 hom. )

Consequence

TRMO
NM_016481.5 missense

Scores

1
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.32
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=0.040574014).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TRMONM_016481.5 linkuse as main transcriptc.1265C>T p.Pro422Leu missense_variant 5/5 ENST00000375119.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TRMOENST00000375119.8 linkuse as main transcriptc.1265C>T p.Pro422Leu missense_variant 5/51 NM_016481.5 P1
TRMOENST00000375118.1 linkuse as main transcriptc.827C>T p.Pro276Leu missense_variant 2/21

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152136
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000636
AC:
16
AN:
251470
Hom.:
0
AF XY:
0.0000736
AC XY:
10
AN XY:
135912
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.0000992
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000301
AC:
44
AN:
1461884
Hom.:
1
Cov.:
33
AF XY:
0.0000344
AC XY:
25
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000197
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000153
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152136
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74316
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000844
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000659
AC:
8

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 17, 2021The c.1265C>T (p.P422L) alteration is located in exon 5 (coding exon 5) of the TRMO gene. This alteration results from a C to T substitution at nucleotide position 1265, causing the proline (P) at amino acid position 422 to be replaced by a leucine (L). 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
0.079
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.62
Cadd
Benign
12
Dann
Benign
0.19
DEOGEN2
Benign
0.16
T;T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.22
N
LIST_S2
Benign
0.67
T;T
M_CAP
Benign
0.0053
T
MetaRNN
Benign
0.041
T;T
MetaSVM
Benign
-0.95
T
MutationTaster
Benign
0.89
D;D
PROVEAN
Uncertain
-3.1
D;D
REVEL
Benign
0.058
Sift
Benign
1.0
T;T
Sift4G
Benign
0.71
T;T
Polyphen
0.45
B;P
Vest4
0.096
MVP
0.16
MPC
0.14
ClinPred
0.062
T
GERP RS
-1.1
Varity_R
0.024
gMVP
0.40

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: rs753673780; hg19: chr9-100667076; COSMIC: COSV64293702; API