rs542184779

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PP3_StrongPP5_Moderate

The NM_001136035.4(TRMT1):​c.967C>T​(p.Arg323Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,460,206 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TRMT1
NM_001136035.4 missense

Scores

12
6
1

Clinical Significance

Likely pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 3.52
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.966
PP5
Variant 19-13110210-G-A is Pathogenic according to our data. Variant chr19-13110210-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 191099.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr19-13110210-G-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TRMT1NM_001136035.4 linkuse as main transcriptc.967C>T p.Arg323Cys missense_variant 8/17 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.967C>T p.Arg323Cys missense_variant 8/172 NM_001136035.4 ENSP00000350352.4 Q9NXH9-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251018
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135792
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1460206
Hom.:
0
Cov.:
41
AF XY:
0.00000275
AC XY:
2
AN XY:
726428
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Likely pathogenic, flagged submissionresearchCenter for Genomic Medicine, King Faisal Specialist Hospital and Research Center-- -
Intellectual developmental disorder, autosomal recessive 68 Pathogenic:1
Likely pathogenic, criteria provided, single submitterresearchCenter for Genomic Medicine, King Faisal Specialist Hospital and Research CenterMar 17, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.76
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.43
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.64
D;D;.;D;D;D
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Uncertain
0.97
D;.;D;.;D;D
M_CAP
Pathogenic
0.34
D
MetaRNN
Pathogenic
0.97
D;D;D;D;D;D
MetaSVM
Uncertain
0.37
D
MutationAssessor
Pathogenic
4.2
H;H;H;H;.;.
PrimateAI
Pathogenic
0.79
T
PROVEAN
Pathogenic
-7.8
D;D;D;.;.;.
REVEL
Pathogenic
0.84
Sift
Pathogenic
0.0
D;D;D;.;.;.
Sift4G
Pathogenic
0.0
D;D;D;D;.;.
Polyphen
1.0
D;D;D;D;.;.
Vest4
0.96
MutPred
0.88
Loss of MoRF binding (P = 0.0047);Loss of MoRF binding (P = 0.0047);Loss of MoRF binding (P = 0.0047);Loss of MoRF binding (P = 0.0047);.;.;
MVP
0.72
MPC
0.73
ClinPred
1.0
D
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.93
gMVP
0.89

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs542184779; hg19: chr19-13221024; COSMIC: COSV99679013; COSMIC: COSV99679013; API