THOC2

THO complex subunit 2, the group of THO complex

Basic information

Region (hg38): X:123600561-123733056

Previous symbols: [ "CXorf3", "MRX12", "MRX35" ]

Links

ENSG00000125676NCBI:57187OMIM:300395HGNC:19073Uniprot:Q8NI27AlphaFoldGenCCjaxSfariGnomADPubmedClinVar

Phenotypes

GenCC

Source: genCC

  • X-linked intellectual disability-short stature-overweight syndrome (Strong), mode of inheritance: XLR
  • X-linked intellectual disability-short stature-overweight syndrome (Strong), mode of inheritance: XL
  • X-linked intellectual disability-short stature-overweight syndrome (Supportive), mode of inheritance: XL
  • X-linked intellectual disability-short stature-overweight syndrome (Moderate), mode of inheritance: XL
  • X-linked intellectual disability-short stature-overweight syndrome (Strong), mode of inheritance: XL

Clinical Genomic Database

Source: CGD

ConditionInheritanceIntervention CategoriesIntervention/Rationale Manifestation CategoriesReferences
Intellectual developmental disorder, X-linked 12XLGeneralGenetic knowledge may be beneficial related to issues such as selection of optimal supportive care, informed medical decision-making, prognostic considerations, and avoidance of unnecessary testingCraniofacial; Genitourinary; Musculoskeletal; Neurologic26166480

ClinVar

This is a list of variants' phenotypes submitted to ClinVar and linked to the THOC2 gene.

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the THOC2 gene is commonly pathogenic or not.

In the table, we include only reliable ClinVar variants with their consequences to MANE Select, Mane Plus Clinical transcripts, or transcripts with TSL equals 1. Click the count to view the source variants.

Warning: slight differences between displayed counts and the number of variants in ClinVar may occur, primarily due to (1) the application of a different transcript and/or consequence by our variant effect predictor or (2) differences in clinical significance: we classify Benign/Likely benign variants as Likely benign and Pathogenic/Likely pathogenic variants as Likely pathogenic.

Variant type Pathogenic Likely pathogenic VUS Likely benign Benign Sum
synonymous
16
clinvar
5
clinvar
21
missense
8
clinvar
95
clinvar
2
clinvar
2
clinvar
107
nonsense
0
start loss
0
frameshift
0
inframe indel
3
clinvar
3
splice donor/acceptor (+/-2bp)
0
splice region
5
3
1
9
non coding
1
clinvar
3
clinvar
5
clinvar
9
Total 0 8 99 21 12

Variants in THOC2

This is a list of pathogenic ClinVar variants found in the THOC2 region.

You can filter this list by clicking the number of variants in the Variants pathogenicity by type table.

Position Type Phenotype Significance ClinVar
X-123609722-GAAAACGGGCTATAAAAAAGCAGAGTCGGCCAGGCACAGTGGCTCACACATGTAATCCCAGCACTTCGGGAGGCTGAGGCAGGTGGATCACGAGGTCAAGAGTTCAAGACCAGCCTAGCCAACATGGTGAAACCCCATCTCTACTAAAAATACAAAAATTAGCCGGGCGCGGTGGCAGGCGCCTCTAATCCCAGCTACTCAGGAGGCTGAGGCAGGAGAATCGCTTGGACCTGGGCGGCAGAGGTTGCAGTGAGCTGAGATCGCGCCACTGCACTCCAGCCTGGGCGACAGAGTGAGACTCTGTCTCAAAAAAAAATAAAAATAAAAAAATAAAGGCAGAATCAACAGCCTCAAAACACAGCTGTCTGGAACCATTACATTTAGGGGGCAAATTGTCCTACGTACTTCAATAATACTAAGGCATCACCAAACAGTAACTATTCAGATTATCTTAAGTGCTCAAAAAAGGCGATGTTAGGGTCTGAACACTGTATCCACTATGATGGAAACACAATTTATTTAAGATGGGTAAAATACTTTTTAAATCTCACATAAAGCATTAAGTGCATTACCTAAAAAAAGAAAAAAAAAGAAAAAAAAAGTTACACATTGTAAATTCCAGAACTAAAAACACAGACCATATTTTCTGTTGCAAAACATGGGCAGTGGTAAAAAAAAAAAAAATGGCACGAAAACTTAAAAATCTTTGGATAAGACATCAGCATGAGAAAGCAAAAGGAACAGAGAACACTAAAGGATAGAAAGACTGAGGATAGTCAACTGGCTCTGTTGACTAATATCTTTATGACCCTCTTCAACTTAACCTCTCAGAGTCTGTTTCTTCACTTATAAAATGCAGATACCACTACCACCATTTACAAGGCAATAAGGACTTTAAAAACATAATTAATTATCCAGAGAAGATGGGAATAAGTGGTGAAGAGAAAGCCAGATGTTCTTAAATATATCTTGGTGCTTAAAAAAAAAATGTGTGGCTAATCAGCAAGCTTAAAATGAAAACAGCTTAAAAATAACTCTGAATCTTGTTTTGCATCTATACCCGAAGACTTGGTCGTTATATTTAGGTGAAAAAAACAAGTAGTTGTAGCTTGTAAAATGCATCTAGTTTTTCAACATTATCAGAACTCATTTTATGTTTCTATCATTAAGTGAAAAGGTGGTGAGAGAACACTCACCTTGATGGAAAGTCTTCATTATCTGTGCTTGTCCGAGGACTTATGAGTAGATGACAAATTAAGGGAAAACAACTTTTGGGAATGGCGGAAAGAACAGCATCTCCCCTTTTAGTACAGCACCTCAGGTTGCAGGCCTAAATGGGCTCTGACCAGCCTGGTAGCCTCAAACTCTACCAGCTCTGCTTGTCTGACTCATCATTTTGCCCTTCTATTCCCAATGTCCCCAGCCCTAGGGACTCTCTGTTCCCTTTCTTCCTCTCTGTGATAATATAACCTGAAAGACTATAAATCCCTTAGTGGCATAAAACATCTCAGTCACCACAGAAGTATTTTTAAATATCAAGAACATCAAGTATCCCACTTCCAGATTTCACACATTTTGAGAGTTAACTGGAAAGACCATTTCAAAACTAATCAGCCCTTAAGCATATAAACCACATACTAAAAGAGTACAATTGTAAACATGACCAGTATCAAAGCTTTCTACTACACTAACTGAAAACATCAAAATGAAAAGGATATTGTTTCTTCTCTTCCTTTCCTCCTGAACTGTCCCGTTTCTCTTTCTTTTCTATCTTTTCTTTATCATGCCTGGACTCCTATAAGAAATAGTAGAATTAGCTGGGGAAGGGAAAGCCAAATATAAAAGCCAGCTCAAAACCCCTTTTCATCACCCGCGAGCTATATTTGTCTTCAAAAACTTACTTAACATGACACCAAAAGCATAAGCAACAAAAGGAAAAAAATAGATACATTGAACTTCATCAAAAGTAAAAACATTCATGCATCAAAGAACACTATCAAGAAAGTGAAAAGACAACCTATAGAACTGGAGAAAAAATTTGCAAATCACCTATCTCATAAGGATCTAGTATCCAAAGTACATAAAGAACTCTTACAACTGAGCAACAAAAACACAAACCCTCAAAATAAAAAATGGTCAAGGTATCTGAACAGATTTCTTGAAAGATAAACAAATGGCCAATAAGCACATGAAAAGATGTTCAGCATCATTAGTTATTAAGAAAATGCAAATCAAAACCACAATGAGACACCACTTCACACTTACTGGAATGGCTATAATAAAAAACAAAAACAGAAAATAACCAGTGTTGACAAAGATGTAGAGAAATCTGCACTCTGATACTTTGTTGGTAGAAATGTAAACTGT-G X-linked intellectual disability-short stature-overweight syndrome Uncertain significance (Jan 10, 2019)804360
X-123610951-C-T Benign (Aug 14, 2018)764241
X-123610952-G-A Uncertain significance (Apr 09, 2019)1186698
X-123610962-G-A X-linked intellectual disability-short stature-overweight syndrome Likely benign (May 20, 2024)2429418
X-123611497-T-C Uncertain significance (Mar 01, 2023)2661347
X-123613410-C-T Inborn genetic diseases Uncertain significance (Jun 07, 2024)3325928
X-123613412-G-A Uncertain significance (Feb 17, 2023)2429653
X-123613430-T-C X-linked intellectual disability-short stature-overweight syndrome Uncertain significance (Jan 10, 2019)804359
X-123613433-T-G X-linked intellectual disability-short stature-overweight syndrome Uncertain significance (Nov 24, 2023)2664007
X-123613451-C-G Uncertain significance (May 01, 2021)1176954
X-123613636-T-C X-linked intellectual disability-short stature-overweight syndrome Uncertain significance (Jan 04, 2022)996890
X-123613660-G-A Inborn genetic diseases Uncertain significance (Nov 08, 2022)2323638
X-123613710-T-C X-linked intellectual disability-short stature-overweight syndrome Pathogenic/Likely pathogenic (Oct 16, 2024)488434
X-123614042-T-A Benign (Apr 10, 2018)739835
X-123614063-C-G Uncertain significance (Jan 04, 2022)1695615
X-123614070-G-C Uncertain significance (Aug 01, 2024)2663539
X-123614070-GTCCTTT-G Uncertain significance (May 22, 2023)1326782
X-123614098-C-T Uncertain significance (Nov 14, 2023)2817293
X-123614163-T-C X-linked intellectual disability-short stature-overweight syndrome Benign/Likely benign (Oct 08, 2021)788159
X-123614165-G-A Inborn genetic diseases Uncertain significance (Mar 05, 2024)1329531
X-123614173-G-A Uncertain significance (May 01, 2024)3239343
X-123614183-T-C X-linked intellectual disability-short stature-overweight syndrome Uncertain significance (Mar 31, 2022)1805377
X-123620953-C-T Uncertain significance (Jan 19, 2023)2573689
X-123620956-C-T X-linked intellectual disability-short stature-overweight syndrome Uncertain significance (Nov 15, 2021)2437079
X-123620973-G-A Benign (Sep 19, 2018)709134

GnomAD

Source: gnomAD

GeneTypeBio TypeTranscript Coding Exons Length
THOC2protein_codingprotein_codingENST00000245838 38132495
pLI Probability
LOF Intolerant
pRec Probability
LOF Recessive
Individuals with
no LOFs
Individuals with
Homozygous LOFs
Individuals with
Heterozygous LOFs
Defined p
1.002.50e-9116512011165130.00000429
Z-Score Observed Expected Observed/Expected Mutation Rate Total Possible in Transcript
Missense5.531785390.3300.000038910545
Missense in Polyphen13109.030.119232322
Synonymous0.2011831860.9810.00001352793
Loss of Function6.99158.90.01700.000004331237

LoF frequencies by population

EthnicitySum of pLOFs p
African & African-American0.00003890.0000389
Ashkenazi Jewish0.000.00
East Asian0.000.00
Finnish0.000.00
European (Non-Finnish)0.000.00
Middle Eastern0.000.00
South Asian0.000.00
Other0.000.00

dbNSFP

Source: dbNSFP

Function
FUNCTION: Required for efficient export of polyadenylated RNA and spliced mRNA. Acts as component of the THO subcomplex of the TREX complex which is thought to couple mRNA transcription, processing and nuclear export, and which specifically associates with spliced mRNA and not with unspliced pre-mRNA. TREX is recruited to spliced mRNAs by a transcription-independent mechanism, binds to mRNA upstream of the exon-junction complex (EJC) and is recruited in a splicing- and cap-dependent manner to a region near the 5' end of the mRNA where it functions in mRNA export to the cytoplasm via the TAP/NFX1 pathway. The TREX complex is essential for the export of Kaposi's sarcoma-associated herpesvirus (KSHV) intronless mRNAs and infectious virus production. THOC2 (and probably the THO complex) is involved in releasing mRNA from nuclear speckle domains. Required for NXF1 localization to the nuclear rim. Plays a role for proper neuronal development. {ECO:0000269|PubMed:11979277, ECO:0000269|PubMed:15833825, ECO:0000269|PubMed:15998806, ECO:0000269|PubMed:17190602, ECO:0000269|PubMed:18974867, ECO:0000269|PubMed:22893130, ECO:0000269|PubMed:23222130, ECO:0000269|PubMed:26166480}.;
Pathway
RNA transport - Homo sapiens (human);Spliceosome - Homo sapiens (human);Gene expression (Transcription);RNA Polymerase II Transcription;Metabolism of RNA;Cleavage of Growing Transcript in the Termination Region ;RNA Polymerase II Transcription Termination;Transport of Mature mRNA derived from an Intron-Containing Transcript;mRNA 3,-end processing;Transport of Mature Transcript to Cytoplasm;Processing of Capped Intron-Containing Pre-mRNA (Consensus)

Recessive Scores

pRec
0.118

Intolerance Scores

loftool
0.0182
rvis_EVS
-0.58
rvis_percentile_EVS
18.59

Haploinsufficiency Scores

pHI
0.495
hipred
Y
hipred_score
0.696
ghis
0.667

Essentials

essential_gene_CRISPR
E
essential_gene_CRISPR2
E
essential_gene_gene_trap
gene_indispensability_pred
N
gene_indispensability_score
0.215

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium

Mouse Genome Informatics

Gene name
Thoc2
Phenotype

Zebrafish Information Network

Gene name
thoc2
Affected structure
hepatocyte
Phenotype tag
abnormal
Phenotype quality
increased size

Gene ontology

Biological process
RNA export from nucleus;mRNA export from nucleus;RNA splicing;poly(A)+ mRNA export from nucleus;mRNA 3'-end processing;viral mRNA export from host cell nucleus;neuron development;generation of neurons
Cellular component
transcription export complex;THO complex;THO complex part of transcription export complex;nuclear chromosome, telomeric region;nucleoplasm;nuclear speck
Molecular function
mRNA binding;protein binding