ArticleThe Journal of biological chemistry2016
REH2C Helicase and GRBC Subcomplexes May Base Pair through mRNA and Small Guide RNA in Kinetoplastid Editosomes.
Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 26 citations in OpenAlex.
- DRBD18 acts as a transcript-specific RNA editing auxiliary factor inRNA (New York, N.Y.) · 2025Article
- KREH2 helicase represses ND7 mRNA editing in procyclic-stage Trypanosoma brucei by opposite modulation of canonical and 'moonlighting' gRNA utilization creating a proposed mRNA structure.Nucleic acids research · 2024Article
- RESC14 and RESC8 cooperate to mediate RESC function and dynamics during trypanosome RNA editing.Nucleic acids research · 2024Article
- Prioritization of Trypanosoma brucei editosome protein interactions interfaces at residue resolution through proteome-scale network analysis.BMC molecular and cell biology · 2024Article
- Structure-Function Analysis of RBP7910: An Editosome Z-Binding Protein in Trypanosomatids.Molecules (Basel, Switzerland) · 2023Article
- Trypanosome RNA helicase KREH2 differentially controls non-canonical editing and putative repressive structure via a novel proposed 'bifunctional' gRNA in mRNA A6.Nucleic acids research · 2023Article
- Structural basis of gRNA stabilization and mRNA recognition in trypanosomal RNA editing.Science (New York, N.Y.) · 2023Article
- KREH1 RNA helicase activity promotes utilization of initiator gRNAs across multiple mRNAs in trypanosome RNA editing.Nucleic acids research · 2023Article
- Structural basis for guide RNA selection by the RESC1-RESC2 complex.Nucleic acids research · 2023Article
- Conserved and transcript-specific functions of the RESC factors, RESC13 and RESC14, in kinetoplastid RNA editing.RNA (New York, N.Y.) · 2022Article
- Trypanosome RNAEditing Substrate Binding Complex integrity and function depends on the upstream action of RESC10.Nucleic acids research · 2021Article
- Site-specific and substrate-specific control of accurate mRNA editing by a helicase complex in trypanosomes.RNA (New York, N.Y.) · 2020Article
- Lexis and Grammar of Mitochondrial RNA Processing in Trypanosomes.Trends in parasitology · 2020Review
- MRB10130 is a RESC assembly factor that promotes kinetoplastid RNA editing initiation and progression.RNA (New York, N.Y.) · 2019Article
- Protein features for assembly of the RNA editing helicase 2 subcomplex (REH2C) in Trypanosome holo-editosomes.PloS one · 2019Article
- Dynamic RNA holo-editosomes with subcomplex variants: Insights into the control of trypanosome editing.Wiley interdisciplinary reviews. RNA · 2018Review
- High throughput sequencing revolution reveals conserved fundamentals of U-indel editing.Wiley interdisciplinary reviews. RNA · 2018Review
- MRB7260 is essential for productive protein-RNA interactions within the RNA editing substrate binding complex during trypanosome RNA editing.RNA (New York, N.Y.) · 2018Article
- Trypanosome RNA Editing Mediator Complex proteins have distinct functions in gRNA utilization.Nucleic acids research · 2017Article
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Authors and funding
11 authors at 4 institutions in 1 country.
Funding
Abstract
Mitochondrial mRNAs in Trypanosoma brucei undergo extensive insertion and deletion of uridylates that are catalyzed by the RNA editing core complex (RECC) and directed by hundreds of small guide RNAs (gRNAs) that base pair with mRNA. RECC is largely RNA-free, and accessory mitochondrial RNA-binding complex 1 (MRB1) variants serve as scaffolds for the assembly of mRNA-gRNA hybrids and RECC. However, the molecular steps that create higher-order holoenzymes ("editosomes") are unknown. Previously, we identified an RNA editing helicase 2-associated subcomplex (REH2C) and showed that REH2 binds RNA. Here we showed that REH2C is an mRNA-associated ribonucleoprotein (mRNP) subcomplex with editing substrates, intermediates, and products. We isolated this mRNP from mitochondria lacking gRNA-bound RNP (gRNP) subcomplexes and identified REH2-associated cofactors 1 and 2 ((H2)F1 and (H2)F2). (H2)F1 is an octa-zinc finger protein required for mRNP-gRNP docking, pre-mRNA and RECC loading, and RNP formation with a short synthetic RNA duplex. REH2 and other eukaryotic DEAH/RHA-type helicases share a conserved regulatory C-terminal domain cluster that includes an oligonucleotide-binding fold. Recombinant REH2 and (H2)F1 constructs associate in a purified complex in vitro. We propose a model of stepwise editosome assembly that entails controlled docking of mRNP and gRNP modules via specific base pairing between their respective mRNA and gRNA cargo and regulatory REH2 and (H2)F1 subunits of the novel mRNP that may control specificity checkpoints in the editing pathway.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.