Ribozyme

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See Ribozyme in Wikipedia, the free encyclopedia.

A ribozyme is a piece of RNA that acts as an enzyme (or the active part of one). The existence of RNA that can act both as an enzyme and a carrier of genetic information lends weight to the RNA world hypothesis.

Examples of ribozymes

  • Ribosomes (catalyses polymerisation of amino acids)
  • Self-splicing introns (RNA sequence catalyses its own removal from the mRNA)
  • Ribonuclease P (cleaves tRNA precursors into the right shape)

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