X-123620953-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_001081550.2(THOC2):​c.4229G>A​(p.Arg1410His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000911 in 1,097,097 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. 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

Scores

2
8
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.71
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 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=0.36440024).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
THOC2NM_001081550.2 linkuse as main transcriptc.4229G>A p.Arg1410His missense_variant 32/39 ENST00000245838.13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
THOC2ENST00000245838.13 linkuse as main transcriptc.4229G>A p.Arg1410His missense_variant 32/395 NM_001081550.2 P1Q8NI27-1

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD3 exomes
AF:
0.00000552
AC:
1
AN:
181142
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67114
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000366
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:
9.11e-7
AC:
1
AN:
1097097
Hom.:
0
Cov.:
29
AF XY:
0.00
AC XY:
0
AN XY:
362519
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000284
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:
0.00
GnomAD4 genome
Cov.:
22

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJan 19, 2023Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.55
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.062
T;.;T;T
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D;.;D
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.36
T;T;T;T
MetaSVM
Benign
-0.72
T
MutationAssessor
Benign
0.97
L;.;L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-2.3
N;.;N;N
REVEL
Benign
0.23
Sift
Uncertain
0.0050
D;.;D;D
Sift4G
Uncertain
0.051
T;T;T;T
Polyphen
0.99
D;.;D;.
Vest4
0.51
MutPred
0.23
Loss of stability (P = 0.0355);.;Loss of stability (P = 0.0355);.;
MVP
0.69
MPC
1.8
ClinPred
0.61
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.54
gMVP
0.21

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.

Other links and lift over

dbSNP: rs866352621; hg19: chrX-122754804; COSMIC: COSV55548880; COSMIC: COSV55548880; API