Variant 8-55782806-A-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_024831.8(TGS1):c.160A>T(p.Asn54Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000827 in 1,450,896 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000083 ( 1 hom. )

Consequence

TGS1
NM_024831.8 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.23

Variant links:

Genes affected

TGS1 (HGNC:17843): (trimethylguanosine synthase 1) Enables RNA trimethylguanosine synthase activity. Involved in 7-methylguanosine cap hypermethylation. Located in cytosol and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

TGS1 links:

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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=0.052651733).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TGS1	NM_024831.8 linkuse as main transcript	c.160A>T	p.Asn54Tyr	missense_variant	2/13	ENST00000260129.6	NP_079107.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TGS1	ENST00000260129.6 linkuse as main transcript	c.160A>T	p.Asn54Tyr	missense_variant	2/13	1	NM_024831.8	ENSP00000260129	P1
TGS1	ENST00000523948.5 linkuse as main transcript	c.102-2913A>T		intron_variant, NMD_transcript_variant		1		ENSP00000430467

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000245

AC:

AN:

244988

Hom.:

AF XY:

0.0000227

AC XY:

AN XY:

132352

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000278

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000167

GnomAD4 exome

AF:

0.00000827

AC:

AN:

1450896

Hom.:

Cov.:

AF XY:

0.00000970

AC XY:

AN XY:

721918

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000507

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000167

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000412

AC:

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

May 13, 2024

The c.160A>T (p.N54Y) alteration is located in exon 2 (coding exon 2) of the TGS1 gene. This alteration results from a A to T substitution at nucleotide position 160, causing the asparagine (N) at amino acid position 54 to be replaced by a tyrosine (Y). 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

0.085

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.037

Eigen

Benign

-0.58

Eigen_PC

Benign

-0.57

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.48

M_CAP

Benign

0.0073

MetaRNN

Benign

0.053

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

MutationTaster

Benign

1.0

PrimateAI

Benign

0.36

PROVEAN

Benign

-1.1

REVEL

Benign

0.038

Sift

Benign

0.10

Sift4G

Benign

0.20

Polyphen

0.0010

Vest4

0.20

MutPred

0.084

Loss of disorder (P = 0.0915);

MVP

0.34

MPC

0.024

ClinPred

0.038

GERP RS

1.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.031

gMVP

0.14

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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