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Chymotrypsin. Proteases. Covalent Intermediate. Class. Nucleophile(s ). Base. Serine protease. Ser/water. His. Yes. Cysteine protease. Cys /water. His. Yes. Aspartyl protease. water. Asp. No. Metalloprotease (Zn). water. Glu. No. Proton Shuttle in Carbonic Anhydrase.
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Proteases Covalent Intermediate Class Nucleophile(s) Base Serine protease Ser/water His Yes Cysteine protease Cys/water His Yes Aspartyl protease water Asp No Metalloprotease (Zn) water Glu No
RNA Secondary and Tertiary Structure Hepatitis Delta Virus Ribozyme
in vitro Evolution of a Ribozyme Genetic diversity More genetic diversity! (affinity chromatography) (RT-PCR) Clone and test for Ribozyme that Hydrolyzes ATP