Impaired affinity for phenylalanine in Escherichia coli phenylalanyl-tRNA synthetase mutant caused by Gly-to-Asp exchange in motif 2 of class II tRNA synthetases.

doi:10.1016/0014-5793(91)81176-9

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Article

Impaired affinity for phenylalanine in Escherichia coli phenylalanyl-tRNA synthetase mutant caused by Gly-to-Asp exchange in motif 2 of class II tRNA synthetases.

FEBS letters - 18 Nov 1991

Kast P, Wehrli C, Hennecke H

Abstract excerpt

Phenylalanyl-tRNA synthetase (PheRS; alpha 2 beta 2 subunit structure) is a member of class II of tRNA synthetases. We report here the genetic analysis of an Escherichia coli mutant strain which is auxotrophic for phenylalanine because it has a PheRS with a decreased affinity for phenylalanine. T...

Topics

Amino Acid Sequence
Amino Acids
Aspartic Acid
Cloning, Molecular
Consensus Sequence
Escherichia coli
Genetic Vectors
Glycine
Molecular Sequence Data
Mutation
Phenylalanine
Phenylalanine-tRNA Ligase

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