19-13105301-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_001136035.4(TRMT1):​c.1799G>A​(p.Arg600Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000752 in 1,614,010 control chromosomes in the GnomAD database, including 4 homozygotes. 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.0033 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00048 ( 2 hom. )

Consequence

TRMT1
NM_001136035.4 missense

Scores

1
17

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.306
Variant links:
Genes affected
TRMT1 (HGNC:25980): (tRNA methyltransferase 1) This gene encodes a tRNA-modifying enzyme that acts as a dimethyltransferase, modifying a single guanine residue at position 26 of the tRNA. The encoded enzyme has both mono- and dimethylase activity when exogenously expressed, and uses S-adenosyl methionine as a methyl donor. The C-terminal region of the encoded protein has both a zinc finger motif, and an arginine/proline-rich region. Mutations in this gene have been implicated in autosomal recessive intellectual disorder (ARID). Alternative splicing results in multiple transcript variants encoding different isoforms. There is a pseudogene of this gene on the X chromosome. [provided by RefSeq, May 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0056091547).
BP6
Variant 19-13105301-C-T is Benign according to our data. Variant chr19-13105301-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3025195.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00334 (508/152320) while in subpopulation AFR AF= 0.0109 (452/41572). AF 95% confidence interval is 0.01. There are 2 homozygotes in gnomad4. There are 244 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TRMT1NM_001136035.4 linkuse as main transcriptc.1799G>A p.Arg600Gln missense_variant 16/17 ENST00000357720.9 NP_001129507.1 Q9NXH9-1A0A024R7I5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TRMT1ENST00000357720.9 linkuse as main transcriptc.1799G>A p.Arg600Gln missense_variant 16/172 NM_001136035.4 ENSP00000350352.4 Q9NXH9-1

Frequencies

GnomAD3 genomes
AF:
0.00332
AC:
505
AN:
152202
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0108
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00209
Gnomad ASJ
AF:
0.00202
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00107
AC:
268
AN:
251154
Hom.:
0
AF XY:
0.000921
AC XY:
125
AN XY:
135790
show subpopulations
Gnomad AFR exome
AF:
0.0107
Gnomad AMR exome
AF:
0.00150
Gnomad ASJ exome
AF:
0.00139
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000185
Gnomad OTH exome
AF:
0.000979
GnomAD4 exome
AF:
0.000483
AC:
706
AN:
1461690
Hom.:
2
Cov.:
33
AF XY:
0.000459
AC XY:
334
AN XY:
727142
show subpopulations
Gnomad4 AFR exome
AF:
0.0117
Gnomad4 AMR exome
AF:
0.00150
Gnomad4 ASJ exome
AF:
0.000995
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.0000563
Gnomad4 NFE exome
AF:
0.000125
Gnomad4 OTH exome
AF:
0.00101
GnomAD4 genome
AF:
0.00334
AC:
508
AN:
152320
Hom.:
2
Cov.:
32
AF XY:
0.00328
AC XY:
244
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.0109
Gnomad4 AMR
AF:
0.00209
Gnomad4 ASJ
AF:
0.00202
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00120
Hom.:
1
Bravo
AF:
0.00369
ESP6500AA
AF:
0.0107
AC:
47
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.00116
AC:
141
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000296

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenNov 01, 2024TRMT1: BP4, BS1 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.60
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
17
DANN
Uncertain
0.99
DEOGEN2
Benign
0.021
T;T;.;T
Eigen
Benign
-0.89
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.13
N
LIST_S2
Benign
0.69
T;.;T;.
MetaRNN
Benign
0.0056
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.1
L;L;.;L
PrimateAI
Benign
0.29
T
PROVEAN
Benign
0.28
N;N;N;.
REVEL
Benign
0.026
Sift
Benign
0.22
T;T;T;.
Sift4G
Benign
0.25
T;T;T;T
Polyphen
0.0050
B;B;B;B
Vest4
0.23
MVP
0.37
MPC
0.16
ClinPred
0.013
T
GERP RS
0.77
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.020
gMVP
0.11

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: rs150832090; hg19: chr19-13216115; API