Genetic tools for selective labeling of proteins with alpha-15N-amino acids.

Abstract excerpt

A collection of genetic tools that can be used to manipulate amino acid metabolism in Escherichia coli is described. The set comprises 21 strains of bacteria, each containing a different genetic defect that is closely linked to a selectable transposon marker. These tools can be used to construct strains of E. coli with ideal genotypes for residue-specific, selective labeling of proteins with nearly any 15N-amino...

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