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Towards Higher Complexity in the RNA World: Hairpin Ribozyme Supported RNA Recombination

  • Abstract In the RNA world, the exchange of sequence patches between two RNAs is an intriguing evolutionary concept, allowing generation of new RNA molecules with novel functionality. Based on the hairpin ribozyme (HPR) with its unique cleavage‐ligation properties, we here demonstrate RNA supported RNA recombination as a possible scenario for the emergence of larger RNA molecules with more complex functionality. A HPR variant designed for the purpose of recombination is capable of cleaving two different RNA molecules, one being a hammerhead ribozyme (HHR) and the other an aptamer (A), and to subsequently recombine and ligate the resulting fragments to a hammerhead ribozyme that is allosterically controlled (HHA) by a cognate ligand. Two such recombination processes involving aptamers for either theophylline or flavine mononucleotide (FMN) are demonstrated with yields of functional recombination product of up to 34 %.

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Metadaten
Author: Robert Hieronymus, Sabine Müller
URN:urn:nbn:de:gbv:9-opus-46228
DOI:https://doi.org/10.1002/syst.202100003
Parent Title (English):ChemSystemsChem
Document Type:Article
Language:English
Date of first Publication:2021/02/25
Release Date:2021/06/28
Tag:RNA; RNA engineering; RNA recombination; aptazymes; ribozymes
GND Keyword:-
First Page:n/a
Last Page:n/a
Faculties:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie und Biochemie
Licence (German):License LogoCreative Commons - Namensnennung-Nicht kommerziell