Dennis N. Arvidson

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The phenotypes of four mutant Escherichia coli Trp repressor proteins with increased activities have been examined in vivo using the challenge-phage assay, an assay based on a positive genetic selection for DNA binding. These proteins, which differ by single amino acid changes from the wild type (Glu13-->Lys, Glu18-->Lys, Glu49-->Lys and Ala77-->Val),(More)
Recombinant Lactobacillus jensenii enolase fused to a C-terminal noncleavable His tag was expressed in Escherichia coli, purified and crystallized by sitting-drop vapor diffusion. A complete data set was collected to 3.25 A resolution. The crystals belonged to space group I4, with unit-cell parameters a=b=145.31, c=99.79 A. There were two protein subunits(More)
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