Variant 1-74764007-A-G 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_138467.3(TYW3):c.674A>G(p.Glu225Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000261 in 1,611,612 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: 𝑓 0.00014 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

TYW3
NM_138467.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.104

Variant links:

Genes affected

TYW3 (HGNC:24757): (tRNA-yW synthesizing protein 3 homolog) Wybutosine (yW) is a hypermodified guanosine at the 3-prime position adjacent to the anticodon of phenylalanine tRNA that stabilizes codon-anticodon interactions during decoding on the ribosome. TYW3 is the human homolog of a yeast gene essential for yW synthesis (Noma and Suzuki, 2006).[supplied by OMIM, Mar 2008]

TYW3 links:

Genome browser will be placed here

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=0.040915728).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
TYW3	NM_138467.3 linkuse as main transcript	c.674A>G	p.Glu225Gly	missense_variant	6/6	ENST00000370867.8
TYW3	NM_001162916.2 linkuse as main transcript	c.575A>G	p.Glu192Gly	missense_variant	5/5
TYW3	XM_006710347.3 linkuse as main transcript	c.674A>G	p.Glu225Gly	missense_variant	6/7
TYW3	NR_027962.2 linkuse as main transcript	n.880A>G		non_coding_transcript_exon_variant	6/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TYW3	ENST00000370867.8 linkuse as main transcript	c.674A>G	p.Glu225Gly	missense_variant	6/6	1	NM_138467.3	P1	Q6IPR3-1

Frequencies

GnomAD3 genomes

AF:

0.000145

AC:

AN:

152126

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00131

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000804

AC:

AN:

248754

Hom.:

AF XY:

0.00000744

AC XY:

AN XY:

134344

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000585

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1459486

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

725912

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000135

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000232

GnomAD4 genome

AF:

0.000145

AC:

AN:

152126

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74304

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000329

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

Mar 28, 2023

The c.674A>G (p.E225G) alteration is located in exon 6 (coding exon 6) of the TYW3 gene. This alteration results from a A to G substitution at nucleotide position 674, causing the glutamic acid (E) at amino acid position 225 to be replaced by a glycine (G). 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

0.063

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.63

Cadd

Benign

6.4

Dann

Benign

0.86

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.052

LIST_S2

Benign

0.46

T;T;T

M_CAP

Benign

0.0051

MetaRNN

Benign

0.041

T;T;T

MetaSVM

Benign

-0.97

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.31

PROVEAN

Benign

-1.6

N;N;.

REVEL

Benign

0.023

Sift

Benign

0.41

T;T;.

Sift4G

Benign

0.38

T;T;T

Polyphen

0.0010

.;B;.

Vest4

0.083

MutPred

0.20

.;Loss of helix (P = 0.0237);.;

MVP

0.13

MPC

0.11

ClinPred

0.019

GERP RS

-1.2

Varity_R

0.033

gMVP

0.12

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.

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