ArticleNature communications2025
Structural mechanism of DDX39B regulation by human TREX-2 and a related complex in mRNP remodeling.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- RNA export through the nuclear pore complex: pathways, mechanisms, and imaging strategies.RNA biology · 2026Review
- Prion-Like Protein LENG8-Mediated Nucleation Drives Stress Granule Assembly.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Conserved mRNP remodeling mechanism of the TREX-2.1 complex.Nucleic acids research · 2026Article
- Mechanisms of transcription termination across the coding and noncoding loci of the genome.Nature reviews. Molecular cell biology · 2026Review
- Article
- Evolutionarily conserved spliceosome-exosome pathway in nuclear mRNA surveillance.Genes & development · 2026Article
- Escorting mRNAs - the multifunctional and divergent roles of cap-chaperones in post-transcriptional gene expression.Journal of cell science · 2026Review
- Screening for influenza B virus NS1-interacting host proteins and characterization of interactions with hnRNPA0 and DDX39B.Virus genes · 2026Article
- LENG8 mediates RNA nuclear retention and degradation in eukaryotes.Molecular cell · 2026Article
- TREX2 component PCID2 scaffolds alternative SAC3-based subcomplexes with distinct RNA processing and export function.bioRxiv : the preprint server for biology · 2026Article
- Molecular insights into mRNA export regulation by the human TREX-2 complex.Nature communications · 2026Article
- Coordinating mRNA maturation: The U1 relay model.Molecular cell · 2026Review
- Leigh Syndrome Pathomechanism Involves Region-Specific Innate Immune Activation in Ndufs4 Knockout Mice.Cellular and molecular neurobiology · 2026Article
- Article
- Characterization of Visceral Adipose Tissue Proteome Reveals Metabolic Changes and Inflammatory Signatures in Severe Obesity.Obesity (Silver Spring, Md.) · 2026Article
- From transcription to export: mRNA's winding path to the cytoplasm.Trends in biochemical sciences · 2025Review
- Mixed Messages: Dynamic and Compositional Heterogeneity of Nuclear Messenger Ribonucleoprotein (mRNP) Complexes.Wiley interdisciplinary reviews. RNAReview
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
Nuclear export of mRNAs in the form of messenger ribonucleoprotein particles (mRNPs) is an obligatory step for eukaryotic gene expression. The DEAD-box ATPase DDX39B (also known as UAP56) is a multifunctional regulator of nuclear mRNPs. How DDX39B mediates mRNP assembly and export in a controlled manner remains elusive. Here, we identify a novel complex TREX-2.1 localized in the nucleus that facilitates the release of DDX39B from the mRNP. TREX-2.1 is composed of three subunits, LENG8, PCID2, and DSS1, and shares the latter two subunits with the nuclear pore complex-associated TREX-2 complex. Cryo-EM structures of TREX-2.1/DDX39B and TREX-2/DDX39B identify a conserved trigger loop in the LENG8 and GANP subunit of the respective TREX-2.1 and TREX-2 complex that is critical for DDX39B regulation. RNA sequencing from LENG8 knockdown cells shows that LENG8 influences the nucleocytoplasmic ratio of a subset of mRNAs with high GC content. Together, our findings lead to a mechanistic understanding of the functional cycle of DDX39B and its regulation by TREX-2 and TREX-2.1 in mRNP processing.
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