A rationally designed pyrrolysyl-tRNA synthetase mutant with a broad substrate spectrum |
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| Authors: | Wang Yane-Shih Fang Xinqiang Wallace Ashley L Wu Bo Liu Wenshe R |
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| Affiliation: | Department of Chemistry, Texas A&M University, College Station, Texas 77843, USA. |
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| Abstract: | Together with tRNA(CUA)(Pyl), a rationally designed pyrrolysyl-tRNA synthetase mutant N346A/C348A has been successfully used for the genetic incorporation of a variety of phenylalanine derivatives with large para substituents into superfolder green fluorescent protein at an amber mutation site in Escherichia coli. This discovery greatly expands the genetically encoded noncanonical amino acid inventory and opens the gate for the genetic incorporation of other phenylalanine derivatives using engineered pyrrolysyl-tRNA synthetase-tRNA(CUA)(Pyl) pairs. |
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