Genetic Variant THOC3:p.Gly19Val (chr5-175968153-C-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_032361.4(THOC3):c.56G>T(p.Gly19Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 152,306 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

THOC3
NM_032361.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.58

Variant links:

Genes affected

THOC3 (HGNC:19072): (THO complex subunit 3) This gene encodes a component of the nuclear THO transcription elongation complex, which is part of the larger transcription export (TREX) complex that couples messenger RNA processing and export. In humans, the transcription export complex is recruited to the 5'-end of messenger RNAs in a splicing- and cap-dependent manner. Studies of a related complex in mouse suggest that the metazoan transcription export complex is involved in cell differentiation and development. A pseudogene of this gene has been defined on chromosome 5. [provided by RefSeq, May 2013]

THOC3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.059357733).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
THOC3	NM_032361.4 link	c.56G>T	p.Gly19Val	missense_variant	Exon 1 of 6	ENST00000265097.9	NP_115737.1	Q96J01-1
THOC3	NM_001376902.1 link	c.56G>T	p.Gly19Val	missense_variant	Exon 1 of 5		NP_001363831.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
THOC3	ENST00000265097.9 link	c.56G>T	p.Gly19Val	missense_variant	Exon 1 of 6	1	NM_032361.4	ENSP00000265097.5		Q96J01-1

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152306

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000386

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000174

AC:

AN:

230482

Hom.:

AF XY:

0.00000788

AC XY:

AN XY:

126932

show subpopulations

Gnomad AFR exome

AF:

0.000320

Gnomad AMR exome

AF:

0.00

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

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000117

AC:

AN:

1452940

Hom.:

Cov.:

AF XY:

0.00000969

AC XY:

AN XY:

722274

show subpopulations

Gnomad4 AFR exome

AF:

0.000421

Gnomad4 AMR exome

AF:

0.00

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:

0.00000180

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.000105

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74414

show subpopulations

Gnomad4 AFR

AF:

0.000386

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000843

Hom.:

ExAC

AF:

0.0000251

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 25, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.56G>T (p.G19V) alteration is located in exon 1 (coding exon 1) of the THOC3 gene. This alteration results from a G to T substitution at nucleotide position 56, causing the glycine (G) at amino acid position 19 to be replaced by a valine (V). 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

0.092

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.011

T;.;.

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.21

LIST_S2

Benign

0.76

T;T;T

M_CAP

Benign

0.057

MetaRNN

Benign

0.059

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

N;.;N

PrimateAI

Pathogenic

0.80

PROVEAN

Benign

-1.3

N;.;N

REVEL

Benign

0.11

Sift

Uncertain

0.0080

D;.;D

Sift4G

Uncertain

0.020

D;D;D

Polyphen

0.099

B;.;.

Vest4

0.60

MVP

0.23

ClinPred

0.054

GERP RS

2.5

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.1

Varity_R

0.12

gMVP

0.33

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