chrX-123613451-C-G

Position:

• chrX-123613451-C-G

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.4625G>C​(p.Ser1542Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000912 in 1,096,384 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 22)
  • Exomes 𝑓: 9.1e-7 (0 hom. 0 hem.)
• Consequence: THOC2 NM_001081550.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.99

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=0.09232822).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
THOC2	NM_001081550.2	c.4625G>C	p.Ser1542Thr	missense_variant	36/39	ENST00000245838.13

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
THOC2	ENST00000245838.13	c.4625G>C	p.Ser1542Thr	missense_variant	36/39	5	NM_001081550.2	P1

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome AF: 9.12e-7 AC: 1 AN: 1096384 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 361942

Gnomad4 AFR exome AF: 0.00

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: 0.00000119

Gnomad4 OTH exome AF: 0.00

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

May 01, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.067
BayesDel_addAF	Benign	-0.26	T
BayesDel_noAF	Benign	-0.61
CADD	Benign	16
DANN	Benign	0.88
DEOGEN2	Benign	0.022	T;.;.;.;T;T
FATHMM_MKL	Benign	0.34	N
LIST_S2	Benign	0.67	T;T;T;T;.;T
M_CAP	Benign	0.048	D
MetaRNN	Benign	0.092	T;T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.55	N;.;.;.;N;.
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.42	T
PROVEAN	Benign	-0.47	N;.;N;N;N;N
REVEL	Benign	0.073
Sift	Benign	0.42	T;.;T;T;T;T
Sift4G	Benign	0.65	T;T;T;T;T;T
Polyphen		0.0	B;.;.;.;B;.
Vest4		0.086
MutPred		0.26		Gain of ubiquitination at K1546 (P = 0.1215);.;.;.;Gain of ubiquitination at K1546 (P = 0.1215);.;
MVP		0.29
MPC		0.72
ClinPred		0.12	T
GERP RS		4.9
Varity_R		0.17
gMVP		0.016

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-122747302;