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Protein Engineering Protocols - Mycobacteriology research center

Protein Engineering Protocols - Mycobacteriology research center

Protein Engineering Protocols - Mycobacteriology research center

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Ribosome-Inactivation Display System 229Fig. 3. (Continued)3.1.3. Construction of pStAv-mR and pGST-mR PlasmidsTo confirm that RTA helps to maintain a stable ribosome complex, in a controlexperiment, we made a gene for an inactive, mutant RTA by site-specificmutagenesis, changing functional amino acids as follows: glutamic acid 177to glutamine; arginine 180 to histidine; and glutamic acid 208 to aspartic acid.Mutation of these three amino acids in RTA completely abolished its activity

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