rs1474472931

Variant summary

Our verdict is Uncertain significance. The variant received 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

Publications

0 publications found
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]
THOC2 Gene-Disease associations (from GenCC):
  • X-linked intellectual disability-short stature-overweight syndrome
    Inheritance: XL Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 15 curated pathogenic missense variants (we use a threshold of 10). The gene has 3 curated benign missense variants. Gene score misZ: 5.5258 (above the threshold of 3.09). Trascript score misZ: NaN (below the threshold of 3.09). GenCC associations: The gene is linked to X-linked intellectual disability-short stature-overweight syndrome.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
THOC2NM_001081550.2 linkc.4664C>T p.Ser1555Phe missense_variant Exon 36 of 39 ENST00000245838.13 NP_001075019.1 Q8NI27-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
THOC2ENST00000245838.13 linkc.4664C>T p.Ser1555Phe missense_variant Exon 36 of 39 5 NM_001081550.2 ENSP00000245838.8 Q8NI27-1
THOC2ENST00000355725.8 linkc.4664C>T p.Ser1555Phe missense_variant Exon 36 of 39 5 ENSP00000347959.4 Q8NI27-1
THOC2ENST00000491737.5 linkc.4319C>T p.Ser1440Phe missense_variant Exon 32 of 34 5 ENSP00000419795.1 A0A0C4DG98
THOC2ENST00000441692.5 linkc.1046C>T p.Ser349Phe missense_variant Exon 7 of 10 5 ENSP00000415211.1 H0Y7U4
THOC2ENST00000448128.5 linkc.449C>T p.Ser150Phe missense_variant Exon 6 of 9 5 ENSP00000397317.1 H0Y594
THOC2ENST00000416618.5 linkc.431C>T p.Ser144Phe missense_variant Exon 5 of 8 5 ENSP00000415244.1 B7ZBA0
THOC2ENST00000455053.5 linkc.143C>T p.Ser48Phe missense_variant Exon 1 of 4 3 ENSP00000402168.1 B7ZB98
THOC2ENST00000432353.5 linkn.*906C>T non_coding_transcript_exon_variant Exon 6 of 9 1 ENSP00000415947.1 H7C477
THOC2ENST00000432353.5 linkn.*906C>T 3_prime_UTR_variant Exon 6 of 9 1 ENSP00000415947.1 H7C477

Frequencies

GnomAD3 genomes
AF:
0.0000180
AC:
2
AN:
110970
Hom.:
0
Cov.:
22
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
GnomAD2 exomes
AF:
0.00000564
AC:
1
AN:
177186
AF XY:
0.00
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 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
African (AFR)
AF:
0.00
AC:
0
AN:
26095
American (AMR)
AF:
0.00
AC:
0
AN:
34431
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19293
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30150
South Asian (SAS)
AF:
0.00
AC:
0
AN:
52983
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40467
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3867
European-Non Finnish (NFE)
AF:
0.00000119
AC:
1
AN:
839503
Other (OTH)
AF:
0.00
AC:
0
AN:
45852
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
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
African (AFR)
AF:
0.00
AC:
0
AN:
30621
American (AMR)
AF:
0.00
AC:
0
AN:
10462
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2620
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3577
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2623
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5911
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
236
European-Non Finnish (NFE)
AF:
0.0000379
AC:
2
AN:
52742
Other (OTH)
AF:
0.00
AC:
0
AN:
1497
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
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
Feb 17, 2023
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Has 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;.
PhyloP100
8.1
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
PromoterAI
0.016
Neutral
Varity_R
0.33
gMVP
0.19
Mutation Taster
=78/22
polymorphism

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

Other links and lift over

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