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Science 22 September 2006:
Vol. 313. no. 5794, pp. 1745 - 1747
DOI: 10.1126/science.1133259
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Perspectives

MOLECULAR BIOLOGY:
Versatility of Self-Cleaving Ribozymes

Michael D. Been

Two studies expand our knowledge of RNA sequences that catalyze their own cleavage. One sheds light on their evolution, the other on the cleavage mechanism.

The author is in the Department of Biochemistry, Duke University Medical School, Durham, NC 27710, USA. E-mail: mdbeen{at}duke.edu

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Science. ISSN 0036-8075 (print), 1095-9203 (online)