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TREX2 three prime repair exonuclease 2 [ Homo sapiens (human) ]

Gene ID: 11219, updated on 11-Apr-2024

Summary

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Official Symbol
TREX2provided by HGNC
Official Full Name
three prime repair exonuclease 2provided by HGNC
Primary source
HGNC:HGNC:12270
See related
Ensembl:ENSG00000183479 MIM:300370; AllianceGenome:HGNC:12270
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Summary
This gene encodes a nuclear protein with 3' to 5' exonuclease activity. The encoded protein participates in double-stranded DNA break repair, and may interact with DNA polymerase delta. [provided by RefSeq, Nov 2012]
Expression
Biased expression in skin (RPKM 5.9), spleen (RPKM 0.7) and 5 other tissues See more
Orthologs
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Genomic context

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See TREX2 in Genome Data Viewer
Location:
Xq28
Exon count:
2
Annotation release Status Assembly Chr Location
RS_2023_10 current GRCh38.p14 (GCF_000001405.40) X NC_000023.11 (153444473..153446056, complement)
RS_2023_10 current T2T-CHM13v2.0 (GCF_009914755.1) X NC_060947.1 (151718056..151719639, complement)
105.20220307 previous assembly GRCh37.p13 (GCF_000001405.25) X NC_000023.10 (152709931..152711514, complement)

Chromosome X - NC_000023.11Genomic Context describing neighboring genes Neighboring gene uncharacterized LOC105373379 Neighboring gene PNMA family member 6E Neighboring gene RNA, 7SL, cytoplasmic 667, pseudogene Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 21061 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 21062 Neighboring gene ReSE screen-validated silencer GRCh37_chrX:152677238-152677448 Neighboring gene ZFP92 zinc finger protein Neighboring gene HAUS augmin like complex subunit 7 Neighboring gene ReSE screen-validated silencer GRCh37_chrX:152726424-152726582 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 30033 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 30034 Neighboring gene Sharpr-MPRA regulatory region 9358 Neighboring gene H3K4me1 hESC enhancer GRCh37_chrX:152741433-152741972 Neighboring gene H3K4me1 hESC enhancer GRCh37_chrX:152742168-152742668 Neighboring gene H3K4me1 hESC enhancer GRCh37_chrX:152742669-152743169 Neighboring gene H3K4me1 hESC enhancer GRCh37_chrX:152753877-152754691 Neighboring gene extracellular matrix protein X-linked, pseudogene Neighboring gene H3K4me1 hESC enhancer GRCh37_chrX:152756808-152757380 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 30035 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 30036 Neighboring gene biglycan

Genomic regions, transcripts, and products

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Go to nucleotide: Graphics FASTA GenBank

Expression

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  • Project title: HPA RNA-seq normal tissues
  • Description: RNA-seq was performed of tissue samples from 95 human individuals representing 27 different tissues in order to determine tissue-specificity of all protein-coding genes
  • BioProject: PRJEB4337
  • Publication: PMID 24309898
  • Analysis date: Wed Apr 4 07:08:55 2018

Bibliography

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Related articles in PubMed

  1. Nucleoporin TPR is an integral component of the TREX-2 mRNA export pathway. Aksenova V, et al. Nat Commun, 2020 Sep 11. PMID 32917881, Free PMC Article
  2. DNA methylation at an enhancer of the three prime repair exonuclease 2 gene (TREX2) is linked to gene expression and survival in laryngeal cancer. Weigel C, et al. Clin Epigenetics, 2019 May 3. PMID 31053176, Free PMC Article
  3. Transcription and mRNA export machineries SAGA and TREX-2 maintain monoubiquitinated H2B balance required for DNA repair. Evangelista FM, et al. J Cell Biol, 2018 Oct 1. PMID 30054449, Free PMC Article
  4. Multifaceted role of TREX2 in the skin defense against UV-induced skin carcinogenesis. Manils J, et al. Oncotarget, 2015 Sep 8. PMID 26090614, Free PMC Article
  5. DNA binding induces active site conformational change in the human TREX2 3'-exonuclease. de Silva U, et al. Nucleic Acids Res, 2009 Apr. PMID 19321497, Free PMC Article

See all (44) citations in PubMed

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
  1. The Human TREX-2 Complex Interacts with Subunits of the ORC Complex.
    Title: The Human TREX-2 Complex Interacts with Subunits of the ORC Complex.
  2. TREX2 Exonuclease Causes Spontaneous Mutations and Stress-Induced Replication Fork Defects in Cells Expressing RAD51(K133A).
    Title: TREX2 Exonuclease Causes Spontaneous Mutations and Stress-Induced Replication Fork Defects in Cells Expressing RAD51(K133A).
  3. Nucleoporin TPR is an integral component of the TREX-2 mRNA export pathway.
    Title: Nucleoporin TPR is an integral component of the TREX-2 mRNA export pathway.
  4. Significant methylation loss at an intragenic site of TREX2 was a frequent trait in a cohort of patients with laryngeal cancer. Methylation loss correlated with increased expression of TREX2 in laryngeal tumors and improved overall survival. These data highlight a regulatory role of TREX2 DNA methylation for gene expression which might affect incidence and survival of laryngeal cancer.
    Title: DNA methylation at an enhancer of the three prime repair exonuclease 2 gene (TREX2) is linked to gene expression and survival in laryngeal cancer.
  5. the scaffold subunit of TREX-2, GANP, positively regulates DNA repair through homologous recombination (HR). In contrast, DUBm adaptor subunits ENY2 and ATXNL3 are required to limit unscheduled HR.
    Title: Transcription and mRNA export machineries SAGA and TREX-2 maintain monoubiquitinated H2B balance required for DNA repair.
  6. Altogether, data provide new insights in the molecular mechanisms of TREX2 activity and establish cell autonomous and non-cell autonomous functions of TREX2 in the UVB-induced skin response.
    Title: Multifaceted role of TREX2 in the skin defense against UV-induced skin carcinogenesis.
  7. human TREX-2 complex prevents genome instability, as determined by the accumulation of gamma-H2AX and 53BP1 foci and single-cell electrophoresis in cells depleted of the TREX-2 subunits PCID2, GANP and DSS1
    Title: BRCA2 prevents R-loop accumulation and associates with TREX-2 mRNA export factor PCID2.
  8. TREX-2 is an NPC-associated complex in mammalian cells.
    Title: The human TREX-2 complex is stably associated with the nuclear pore basket.
  9. Trex2 does not enable DSB repair and prompt a new model that posits Trex2 suppresses the formation of broken chromosomes.
    Title: Trex2 enables spontaneous sister chromatid exchanges without facilitating DNA double-strand break repair.
  10. a model for DNA binding and 3' hydrolysis for the TREX2 dimer.
    Title: DNA binding induces active site conformational change in the human TREX2 3'-exonuclease.
Submit: New GeneRIF Correction See all GeneRIFs (16)

Phenotypes

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Find tests for this gene in the NIH Genetic Testing Registry (GTR)

Review eQTL and phenotype association data in this region using PheGenI

Variation

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See variants in ClinVar

See studies and variants in dbVar

See Variation Viewer (GRCh37.p13)

See Variation Viewer (GRCh38)

Genotypes

Interactions

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Products Interactant Other Gene Complex Source Pubs Description

General gene information

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Markers

Potential readthrough

Included gene: HAUS7

Homology

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables 3'-5'-DNA exonuclease activity IBA
Inferred from Biological aspect of Ancestor
more info
  
enables 3'-5'-DNA exonuclease activity IDA
Inferred from Direct Assay
more info
 PubMed 
enables DNA binding EXP
Inferred from Experiment
more info
 PubMed 
enables double-stranded DNA 3'-5' DNA exonuclease activity IEA
Inferred from Electronic Annotation
more info
  
enables magnesium ion binding IDA
Inferred from Direct Assay
more info
 PubMed 
enables molecular adaptor activity EXP
Inferred from Experiment
more info
 PubMed 
enables protein binding IPI
Inferred from Physical Interaction
more info
 PubMed 
enables protein homodimerization activity IPI
Inferred from Physical Interaction
more info
 PubMed 
Process Evidence Code Pubs
involved_in DNA catabolic process IBA
Inferred from Biological aspect of Ancestor
more info
  
involved_in DNA metabolic process IDA
Inferred from Direct Assay
more info
 PubMed 
involved_in DNA repair IEA
Inferred from Electronic Annotation
more info
  
Component Evidence Code Pubs
is_active_in cytoplasm IBA
Inferred from Biological aspect of Ancestor
more info
  
located_in nucleus IEA
Inferred from Electronic Annotation
more info
  

General protein information

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Preferred Names
three prime repair exonuclease 2
Names
3'-5' exonuclease TREX2 long form
NP_542432.2

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

Genomic

  1. NG_029986.1 RefSeqGene

    Range
    5432..7015
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_080701.4 → NP_542432.2  three prime repair exonuclease 2

    See identical proteins and their annotated locations for NP_542432.2

    Status: REVIEWED

    Source sequence(s)
    U82695
    Consensus CDS
    CCDS35437.1
    UniProtKB/Swiss-Prot
    Q45F08, Q9BQ50, Q9UN77
    UniProtKB/TrEMBL
    Q06S70
    Related
    ENSP00000359251.2, ENST00000370231.3
    Conserved Domains (1) summary
    cd06136
    Location:10 → 204
    TREX1_2; DEDDh 3'-5' exonuclease domain of three prime repair exonuclease (TREX)1, TREX2, and similar proteins

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2023_10

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000023.11 Reference GRCh38.p14 Primary Assembly

    Range
    153444473..153446056 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060947.1 Alternate T2T-CHM13v2.0

    Range
    151718056..151719639 complement
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Suppressed Reference Sequence(s)

The following Reference Sequences have been suppressed. Explain

  1. NM_080699.2: Suppressed sequence

    Description
    NM_080699.2: This RefSeq was permanently suppressed because currently there is support for the transcript but not for the protein.

  2. NM_080700.2: Suppressed sequence

    Description
    NM_080700.2: This RefSeq was permanently suppressed because currently there is support for the transcript but not for the protein.
Nucleotide Protein
Heading Accession and Version
Protein Accession Links
GenPept Link UniProtKB Link
Q9BQ50.2 GenPept UniProtKB/Swiss-Prot:Q9BQ50

Gene LinkOut

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