chrX-123613412-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_001081550.2(THOC2):​c.4664C>T​(p.Ser1555Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000249 in 1,203,611 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 22)
Exomes 𝑓: 9.2e-7 ( 0 hom. 0 hem. )

Consequence

THOC2
NM_001081550.2 missense

Scores

3
7
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.06
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 3 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.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
THOC2NM_001081550.2 linkuse as main transcriptc.4664C>T p.Ser1555Phe missense_variant 36/39 ENST00000245838.13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
THOC2ENST00000245838.13 linkuse as main transcriptc.4664C>T p.Ser1555Phe missense_variant 36/395 NM_001081550.2 P1Q8NI27-1

Frequencies

GnomAD3 genomes
AF:
0.0000180
AC:
2
AN:
110970
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33328
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000379
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000564
AC:
1
AN:
177186
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
63770
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.0000125
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
9.15e-7
AC:
1
AN:
1092641
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
359203
show subpopulations
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
AF:
0.0000180
AC:
2
AN:
110970
Hom.:
0
Cov.:
22
AF XY:
0.00
AC XY:
0
AN XY:
33328
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000379
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

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 testingGeneDxFeb 17, 2023Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Pathogenic
0.24
D
BayesDel_noAF
Uncertain
0.10
CADD
Uncertain
24
DANN
Benign
0.95
DEOGEN2
Benign
0.036
T;.;.;.;T;T
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.95
D;D;D;D;.;D
M_CAP
Pathogenic
0.36
D
MetaRNN
Uncertain
0.48
T;T;T;T;T;T
MetaSVM
Benign
-0.40
T
MutationAssessor
Benign
0.97
L;.;.;.;L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.65
T
PROVEAN
Benign
-1.1
N;.;D;D;N;N
REVEL
Uncertain
0.42
Sift
Uncertain
0.017
D;.;D;D;D;D
Sift4G
Uncertain
0.013
D;D;D;D;D;D
Polyphen
0.99
D;.;.;.;D;.
Vest4
0.41
MutPred
0.38
Loss of phosphorylation at S1555 (P = 0.0011);.;.;.;Loss of phosphorylation at S1555 (P = 0.0011);.;
MVP
0.53
MPC
1.0
ClinPred
0.61
D
GERP RS
5.8
Varity_R
0.33
gMVP
0.19

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.

Other links and lift over

dbSNP: rs1474472931; hg19: chrX-122747263; COSMIC: COSV104552183; COSMIC: COSV104552183; API