PROKARYOTIC RNAi-LIKE SYSTEM AND METHODS OF USE
Provided herein are methods for inactivating a target polynucleotide. The methods use a psiRNA having a 5' region and a 3' region. The 5' region includes, but is not limited to, 5 to 10 nucleotides chosen from a repeat from a CRISPR locus immediately upstream of a spacer. The 3' region is substantially complementary to a portion of the target polynucleotide. The methods may be practiced in a prokaryotic microbe or in vitro. Also provided are polypeptides that have endonuclease activity in the presence of a psiRNA and a target polynucleotide, and methods for using the polypeptides.
TERNS REBECCA [US]; TERNS MICHAEL [US]; HALE CARYN [US]
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