RNA ribozyme polymerases, and methods
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United States of America Patent
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Aug 6, 1991
Issued Date -
N/A
app pub date -
Mar 16, 1989
filing date -
Dec 3, 1986
priority date (Note) -
Expired
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Abstract
A catalytic RNA (ribozyme) derived from an intervening sequence (IVS) RNA of Tetrahymena thermophila will catalyze an RNA polymerization reaction in which pentacytidylic acid (C.sub.5) is extended by the successive addition of mononucleotides derived from a guanylyl-(3',5')-nucleotide (GpN). Cytidines or uridines are added to C.sub.5 to generate chain lengths of 10 to 11 nucleotides; longer products are also generated but at reduced efficiency. The reaction is analogous to that catalyzed by a replicase with C.sub.5 acting as the primer, GpNs as the nucleoside triphosphates, and a sequence in the ribozyme providing a template.
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