Cited by 515RNA and protein synthesis mechanismsDNA and Nucleic Acid ChemistryEnzyme Catalysis and Immobilization

Directed Evolution of Nucleic Acid Enzymes

Joyce, Gerald F.·2004·Annual Review of Biochemistry

Abstract

▪ Abstract Just as Darwinian evolution in nature has led to the development of many sophisticated enzymes, Darwinian evolution in vitro has proven to be a powerful approach for obtaining similar results in the laboratory. This review focuses on the development of nucleic acid enzymes starting from a population of random-sequence RNA or DNA molecules. In order to illustrate the principles and practice of in vitro evolution, two especially well-studied categories of catalytic nucleic acid are considered: RNA enzymes that catalyze the template-directed ligation of RNA and DNA enzymes that catalyze the cleavage of RNA. The former reaction, which involves attack of a 2′- or 3′-hydroxyl on the α-phosphate of a 5′-triphosphate, is more difficult. It requires a comparatively larger catalytic motif, containing more nucleotides than can be sampled exhaustively within a starting population of random-sequence RNAs. The latter reaction involves deprotonation of the 2′-hydroxyl adjacent to the cleavage site, resulting in cleaved products that bear a 2′,3′-cyclic phosphate and 5′-hydroxyl. The difficulty of this reaction, and therefore the complexity of the corresponding DNA enzyme, depends on whether a catalytic cofactor, such as a divalent metal cation or small molecule, is present in the reaction mixture.

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Crossref · 10.1146/annurev.biochem.73.011303.073717

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  • A replicator generally has to exhibit exponential growth in order to dominate over a weaker replicator.

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Authors
Joyce, G. F.
Affiliations
Scripps Research Institute (US)
Corresponding author
Joyce, Gerald F.
Venue
Annual Review of Biochemistry
Published
2004-06
Volume
73
Issue
1
Pages
791-836
ISSN
  • 0066-4154 (ISSN-L)
  • 1545-4509
OpenAlex
W2073775872
Cited by
515
References
6
Citations by year
2026: 9 · 2025: 5 · 2024: 13 · 2023: 11 · 2022: 6 · 2021: 18 · 2020: 14 · 2019: 18 · 2018: 14 · 2017: 24 · 2016: 23 · 2015: 28 · 2014: 27 · 2013: 28 · 2012: 20
FWCI
3.11
Type
journal article
Language
en
Open access
closed
Locations
  • Annual Review of Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Nucleic Acid Chemistry
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Enzyme Catalysis and Immobilization
Keywords
in vitro evolution, nucleic acid enzymes, ribozymes, RNA ligation, RNA cleavage, 2',3'-cyclic phosphate, divalent metal cations, catalytic motifs
MeSH terms
RNA, Catalytic, Directed Molecular Evolution, DNA, Catalytic

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