11-72106052-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001393500.2(TOMT):c.101G>A(p.Arg34Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000058 in 1,550,722 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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: 0.0000050 ( 0 hom. )

Consequence

TOMT
NM_001393500.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.60

Variant links:

Genes affected

TOMT (HGNC:55527): (transmembrane O-methyltransferase) This gene encodes a catechol-O-methyltransferase that catalyzes the transfer of a methyl group from S-adenosyl-L-methionine to a hydroxyl group of catechols and is essential for auditory and vestibular function. Mutations in this gene have been associated with nonsyndromic deafness. Readthrough transcription is observed across this gene and the adjacent leucine-rich repeat containing 51 gene. A third locus (GeneID:220074) is defined to represent the readthrough transcripts. [provided by RefSeq, Feb 2021]

TOMT links:

LRTOMT (HGNC:):

LRTOMT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.39761445).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
TOMT	NM_001393500.2 linkuse as main transcript	c.101G>A	p.Arg34Gln	missense_variant	1/3	ENST00000541899.3
LRTOMT	NM_001145309.4 linkuse as main transcript	c.200G>A	p.Arg67Gln	missense_variant	7/9
LRTOMT	NM_001145308.5 linkuse as main transcript	c.200G>A	p.Arg67Gln	missense_variant	5/7
LRTOMT	NM_001145310.4 linkuse as main transcript	c.84-4G>A		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TOMT	ENST00000541899.3 linkuse as main transcript	c.101G>A	p.Arg34Gln	missense_variant	1/3	5	NM_001393500.2	P1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152180

Hom.:

Cov.:

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

GnomAD4 exome

AF:

0.00000501

AC:

AN:

1398542

Hom.:

Cov.:

AF XY:

0.00000580

AC XY:

AN XY:

689828

show subpopulations

Gnomad4 AFR exome

AF:

0.0000316

Gnomad4 AMR exome

AF:

0.0000280

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000280

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000371

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152180

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74322

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

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 04, 2021

The c.200G>A (p.R67Q) alteration is located in exon 5 (coding exon 3) of the LRTOMT gene. This alteration results from a G to A substitution at nucleotide position 200, causing the arginine (R) at amino acid position 67 to be replaced by a glutamine (Q). 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

0.13

BayesDel_addAF

Uncertain

0.12

BayesDel_noAF

Uncertain

-0.060

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.040

T;T;.

Eigen

Uncertain

0.26

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.87

D;.;D

M_CAP

Uncertain

0.093

MetaRNN

Benign

0.40

T;T;T

MetaSVM

Uncertain

-0.24

MutationAssessor

Benign

1.9

L;L;.

MutationTaster

Benign

1.0

D;D;N;N

PrimateAI

Uncertain

0.57

PROVEAN

Benign

0.0

N;N;.

REVEL

Uncertain

0.41

Sift

Benign

0.50

T;T;.

Sift4G

Benign

0.46

T;T;.

Polyphen

1.0

D;D;.

Vest4

0.32

MutPred

0.38

Gain of helix (P = 0.0078);Gain of helix (P = 0.0078);.;

MVP

0.90

MPC

0.16

ClinPred

0.77

GERP RS

4.4

Varity_R

0.11

gMVP

0.58

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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