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Ribozyme

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  • First Online:
Encyclopedia of Astrobiology
  • 58 Accesses

Synonyms

RNA enzyme

Definition

An abbreviation of “ribonucleic acid enzyme.” Broadly defined as an RNA molecule that catalyzes any specific chemical reaction even though it may not always satisfy the strict definition of “enzyme,” specifically with respect to multiple turnover and self-modification.

History

The concept of catalytically active RNA was first postulated in the late 1960s as part of an elegant scenario to describe the origin of life (Woese 1967; Crick 1968; Orgel 1968). Subsequently, the unexpected discovery in the early 1980s that ribozymes were, in fact, active and essential components of contemporary living organisms was a paradigm-shifting breakthrough. Tom Cech, studying intron splicing (an intron is a region of RNA that interrupts the protein-coding region of some messenger RNAs and which must be removed in a process called RNA splicing before the mRNA can be correctly translated into a protein) (Kruger et al. 1982), and Sidney Altman, investigating ribonuclease P...

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References and Further Reading

  • Crick FHC (1968) The origin of the genetic code. J Mol Biol 38(3):367–379

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  • Ellington AD, Chen X, Robertson MP, Syrett A (2009) Evolutionary origins and directed evolution of RNA. Int J Biochem Cell Biol 41(2):254–265

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  • Gilbert W (1986) The RNA world. Nature 319:618

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  • Guerrier-Takada C, Gardiner K, Marsh T, Pace N, Altman S (1983) The RNA moiety of ribonuclease P is the catalytic subunit of the enzyme. Cell 35(3):849–857

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  • Joyce GF (2004) Directed evolution of nucleic acid enzymes. Annu Rev Biochem 73:791–836

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  • Kruger K, Grabowski PJ, Zaug AJ, Sands J, Gottschling DE, Cech TR (1982) Self-splicing RNA: autoexcision and autocyclization of the ribosomal RNA intervening sequence of Tetrahymena. Cell 31(1):147–157

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  • Nissen P, Hansen J, Ban N, Moore PB, Steitz TA (2000) The structural basis of ribosome activity in peptide bond synthesis. Science 289(5481):920–930

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  • Noller HF, Hoffarth V, Zimniak L (1992) Unusual resistance of peptidyl transferase to protein extraction procedures. Science 256(5062):1416–1419

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  • Orgel LE (1968) Evolution of the genetic apparatus. J Mol Biol 38(3):381–393

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  • Woese C (1967) The genetic code: the molecular basis for genetic expression. Harper & Row, New York

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Correspondence to Michael P. Robertson .

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Robertson, M.P. (2015). Ribozyme. In: Gargaud, M., et al. Encyclopedia of Astrobiology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-44185-5_1375

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