X-123611497-T-C

Position:

• chrX-123611497-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_001081550.2(THOC2):​c.4697A>G​(p.Glu1566Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 22)
• Consequence: THOC2 NM_001081550.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.46

Genes affected

THOC2 (HGNC:19073): (THO complex subunit 2) The TREX multiprotein complex binds specifically to spliced mRNAs to facilitate mRNA export. The protein encoded by this gene is a member of the THO complex, a subset of the TREX complex. The encoded protein interacts with the THOC1 protein.[provided by RefSeq, Jun 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), THOC2. . Gene score misZ 5.5258 (greater than the threshold 3.09). GenCC has associacion of gene with X-linked intellectual disability-short stature-overweight syndrome.
• BP4: Computational evidence support a benign effect (MetaRNN=0.23428616).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
THOC2	NM_001081550.2	c.4697A>G	p.Glu1566Gly	missense_variant	37/39	ENST00000245838.13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
THOC2	ENST00000245838.13	c.4697A>G	p.Glu1566Gly	missense_variant	37/39	5	NM_001081550.2	P1

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome Cov.: 24

GnomAD4 genome Cov.: 22

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Mar 01, 2023

THOC2: PM2, PP2 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.37
BayesDel_addAF	Uncertain	0.10	D
BayesDel_noAF	Benign	-0.090
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.033	T;.;.;.;T;T
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.93	D;D;D;D;.;D
M_CAP	Benign	0.069	D
MetaRNN	Benign	0.23	T;T;T;T;T;T
MetaSVM	Benign	-0.82	T
MutationAssessor	Benign	0.97	L;.;.;.;L;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	-1.4	N;.;D;D;N;N
REVEL	Benign	0.14
Sift	Uncertain	0.020	D;.;D;D;D;D
Sift4G	Benign	0.26	T;D;D;T;T;T
Polyphen		0.61	P;.;.;.;P;.
Vest4		0.23
MutPred		0.30		Loss of helix (P = 0.0033);.;.;.;Loss of helix (P = 0.0033);.;
MVP		0.19
MPC		1.0
ClinPred		0.59	D
GERP RS		5.8
Varity_R		0.30
gMVP		0.057

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

No publications associated with this variant yet.

Other links and lift over

hg19: chrX-122745348;