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Phenylalanyl-tRNA synthetase fromE. coli MRE-600: Localization of the phenylalanine binding sites on the subunits by affinity reagents

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Abstract

The phenylalanine and the phenylalanyl-tRNAPhe binding sites on the subunits of phenylalanyl-tRNA synthetase fromE.coli MRE-600 were localized using p-azidoanilidate of [14C]phenylalanine and N-bromoacetyl[14C]phenylalanyl-tRNAPhe. The phenylalanine recognizing site was shown to be situated on the α subunit of the enzyme in close proximity to the contact region of the α and β subunits and the phenylalanyl-tRNAPhe recognizing site on the β subunit. Transfer of the aminoacyl moiety from the α subunit to the β subunit of the enzyme was assumed to take place in the process of catalysis of the aminoacylation reaction.

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Lavrik, O.I., Moor, N.A. & Khodyreva, S.N. Phenylalanyl-tRNA synthetase fromE. coli MRE-600: Localization of the phenylalanine binding sites on the subunits by affinity reagents. Mol Biol Rep 8, 123–126 (1982). https://doi.org/10.1007/BF00778515

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  • DOI: https://doi.org/10.1007/BF00778515

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