chr20-5941328-C-T

Position:

chr20-5941328-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PM2

The ENST00000203001.7(TRMT6):c.1130G>A(p.Arg377His) variant causes a missense change. The variant allele was found at a frequency of 0.0000328 in 1,613,792 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R377C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

TRMT6
ENST00000203001.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.87

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]

TRMT6 links:

TRMT6 (HGNC:):

TRMT6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1

In a binding_site (size 0) in uniprot entity TRM6_HUMAN

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TRMT6	NM_015939.5 linkuse as main transcript	c.1130G>A	p.Arg377His	missense_variant	9/11	ENST00000203001.7	NP_057023.2	Q9UJA5-1
TRMT6	NM_001281467.2 linkuse as main transcript	c.620G>A	p.Arg207His	missense_variant	8/10		NP_001268396.1	Q9UJA5-4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
TRMT6	ENST00000203001.7 linkuse as main transcript	c.1130G>A	p.Arg377His	missense_variant	9/11	1	NM_015939.5	ENSP00000203001.2	Q9UJA5-1
TRMT6	ENST00000453074.6 linkuse as main transcript	c.620G>A	p.Arg207His	missense_variant	8/10	2		ENSP00000392070.2	Q9UJA5-4
TRMT6	ENST00000466974.5 linkuse as main transcript	n.1807G>A		non_coding_transcript_exon_variant	8/9	2
TRMT6	ENST00000473131.5 linkuse as main transcript	n.1361G>A		non_coding_transcript_exon_variant	9/11	5

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152090

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

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:

0.0000945

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000160

AC:

AN:

250698

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135602

show subpopulations

Gnomad AFR exome

AF:

0.0000618

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.0000924

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000280

AC:

AN:

1461702

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

727154

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:

0.0000232

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000315

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152090

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74284

show subpopulations

Gnomad4 AFR

AF:

0.000193

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000945

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000756

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.000109

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 submitter

clinical testing

Ambry Genetics

Apr 12, 2022

The c.1130G>A (p.R377H) alteration is located in exon 9 (coding exon 9) of the TRMT6 gene. This alteration results from a G to A substitution at nucleotide position 1130, causing the arginine (R) at amino acid position 377 to be replaced by a histidine (H). 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

0.25

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.16

T;.

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.90

D;D

M_CAP

Benign

0.078

MetaRNN

Uncertain

0.51

D;D

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.8

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-3.6

D;D

REVEL

Benign

0.26

Sift

Uncertain

0.026

D;D

Sift4G

Uncertain

0.012

D;D

Polyphen

1.0

D;.

Vest4

0.55

MVP

0.62

MPC

1.1

ClinPred

0.75

GERP RS

6.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.40

gMVP

0.43

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over