RNA editing articles within Nature Communications

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  • Article
    | Open Access

    Here the authors captured the structure of human telomerase H/ACA ribonucleoprotein (RNP) by cryo-EM. The structure rationalizes telomere-disorder disease mutations and reveals insights into the mechanism of pseudouridylation by eukaryotic H/ACA RNPs.

    • George E. Ghanim
    • , Zala Sekne
    •  & Thi Hoang Duong Nguyen
  • Article
    | Open Access

    The deamination of all adenosines in the wobble base position is essential to empower the individual tRNA to decode several codons. Here, the authors present the cryo-EM structure of the tRNA-bound ADAT2/3 deaminase, revealing how the geometry-specific enzyme acquiesces sequence-divergent tRNAs to its active site.

    • Luciano G. Dolce
    • , Aubree A. Zimmer
    •  & Eva Kowalinski
  • Article
    | Open Access

    C-to-Ψ conversion is a previously uncharacterized form of base editing. Here, the authors describe how the TrcP enzyme catalyzes this process in a stepwise fashion and how this editing process is controlled by a network of modifications and nutrient availability to optimize translation efficiency.

    • Satoshi Kimura
    • , Veerasak Srisuknimit
    •  & Matthew K. Waldor
  • Article
    | Open Access

    Additional roles for A-to-I editing of RNA continue to be uncovered. Niescierowicz et al. report prevalent A-to-I editing in the zebrafish transcriptome, and the distinct maternal and zygotic functions of the editing enzyme Adar in embryonic patterning and in the regulation of innate immune response, respectively.

    • Katarzyna Niescierowicz
    • , Leszek Pryszcz
    •  & Cecilia Winata
  • Article
    | Open Access

    The spatial context of epitranscriptomic features in the tumour microenvironment remains poorly understood. Here, a method for transcriptomic and epitranscriptomic analysis of immunofluorescence-stained tissue, Select-seq, is applied to stem cell-like microniches in triple negative breast cancer.

    • Amos C. Lee
    • , Yongju Lee
    •  & Sunghoon Kwon
  • Article
    | Open Access

    RNA editing and circRNAs are involved in tumorigenesis. Here the authors report that ADARs regulate the circular transcriptome in a bidirectional manner through and beyond their editing function in multiple cancer cells.

    • Haoqing Shen
    • , Omer An
    •  & Leilei Chen
  • Article
    | Open Access

    Bumblebee workers are genetically highly similar but they show different behaviors such as brood care and foraging. Here the authors report a high level of ADAR-mediated RNA editing in the bumblebee Bombus terrestris and its weak correlation to task performance.

    • Hagit T. Porath
    • , Esther Hazan
    •  & Guy Bloch
  • Article
    | Open Access

    Polyadenylation stabilizes edited mitochondrial mRNAs in Trypanosoma brucei, but the involved poly(A) binding protein is unknown. Here, Mesitov et al. show that a pentatricopeptide repeat factor KPAF4 binds to A-tail and prevents exonucleolytic degradation as well as translation of incompletely edited mRNAs.

    • Mikhail V. Mesitov
    • , Tian Yu
    •  & Inna Aphasizheva
  • Article
    | Open Access

    RNA editing rate detected from bulk RNA-seq data can vary widely. Here, by constructing a hierarchical Bayesian model, the authors report substantial variance in editing signatures detected by RNA-seq data from both single cells and a cognate bulk sample.

    • Dewi Harjanto
    • , Theodore Papamarkou
    •  & Anastasia Papavasiliou
  • Article
    | Open Access

    Activation-induced deoxycytidine deaminase (AID) induces somatic hypermutation and class-switch recombination during transcription of immunoglobulin genes. Here the authors use single-molecule FRET to show that AID translocates together with RNA polymerase and scans within stalled transcription bubbles.

    • Gayan Senavirathne
    • , Jeffrey G. Bertram
    •  & David Rueda
  • Article
    | Open Access

    Adenosine-to-inosine (A-to-I) RNA editing plays an important role in neurological functions. Here, by a quantitative trait loci (QTL) mapping approach in 131 Drosophila melanogasterstrains, the authors identify 545 QTLs associated with differences in RNA editing.

    • Gokul Ramaswami
    • , Patricia Deng
    •  & Jin Billy Li
  • Article
    | Open Access

    Aberrant RNA editing is linked to a range of neuropsychiatric and chronic diseases. Here Sharma et al. show that APOBEC3A can function as an RNA editing protein in response to physiological stimuli, significantly expanding our understanding of RNA editing and the role this may play in diseases.

    • Shraddha Sharma
    • , Santosh K. Patnaik
    •  & Bora E. Baysal
  • Article |

    ADAR1 is an adenosine deaminase that converts adenosine to inosine (A-to-I) mostly on Alu repeats in human RNA. Here by analysing transcriptome-wide ADAR1–RNA interactions, the authors show that ADAR1 also binds non-Alusequences to regulate alternative 3′ UTR usage and miRNA biogenesis in the nucleus.

    • Jae Hoon Bahn
    • , Jaegyoon Ahn
    •  & Xinshu Xiao
  • Article
    | Open Access

    Post-translational mRNA editing has the potential to enhance the diversity of gene products and alter the functional properties of proteins. Here, Li et al. provide evidence that RNA editing is involved in generating caste-specific contrasting phenotypes in the leaf-cutting ant Acromyrmex echinatior.

    • Qiye Li
    • , Zongji Wang
    •  & Guojie Zhang
  • Article
    | Open Access

    Common methods to detect adenosine-to-inosine RNA editing sites rely on mapping short RNA reads to the genome while allowing only a limited number of mismatches. Here, Porath et al. present a novel RNA-seq based approach to identify hyper-edited reads that significantly expands the RNA editome.

    • Hagit T. Porath
    • , Shai Carmi
    •  & Erez Y. Levanon
  • Article |

    The Hoppel transposable element mediates heterochromatin formation in Drosophila. Here Savva et al. report that the RNA-editing enzyme, ADAR, edits a long double-stranded RNA generated by the Hoppeltransposon, thereby regulating heterochromatin formation and gene expression.

    • Yiannis A. Savva
    • , James E. C. Jepson
    •  & Robert A. Reenan
  • Article |

    A central, imperfect duplex RNA secondary structure is generally required for site-specific adenosine-to-inosine RNA editing by ADAR enzymes. Rieder et al. show in Drosophila that conserved and complex long-range RNA tertiary structures form in vivoand can also regulate specific RNA-editing events by ADAR enzymes.

    • Leila E. Rieder
    • , Cynthia J. Staber
    •  & Robert A. Reenan
  • Article |

    Adars are adenosine deaminases that act on RNAs, including those encoding proteins involved in neuronal transmission and also Adar RNA. Here, Savvaet al. engineered knock-in Drosophila mutants with altered Adar autoediting and found that this changed the spectrum of adenosine deamination and Drosophilabehaviour.

    • Yiannis A. Savva
    • , James E.C Jepson
    •  & Robert A. Reenan
  • Article
    | Open Access

    RNA editing is important in regulating neuronal excitability, and a specific editing event has been shown to alter the permeation pathway of voltage-gate potassium channels. Gonzalezet al.find that the tip of the channel's inactivation gate makes a direct hydrophobic interaction with the edited position.

    • Carlos Gonzalez
    • , Angelica Lopez-Rodriguez
    •  & Miguel Holmgren
  • Article
    | Open Access

    ADAR enzymes edit double-stranded RNA, converting adenosines to inosines, and are essential for neuronal function. Eggingtonet al. quantify edit sites in RNA using a Sanger sequencing protocol and use the resulting data to develop algorithms to predict RNA edit sites.

    • Julie M. Eggington
    • , Tom Greene
    •  & Brenda L. Bass