The present invention provides novel cleavage agents and polymerases for the cleavage and modification of nucleic acid. The cleavage agents and polymerases find use, for example, for the detection and characterization of nucleic acid sequences and variations in nucleic acid sequences. In some embodiments,...http://www.google.com/patents/US7150982?utm_source=gb-gplus-sharePatent US7150982 - RNA detection assays