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Translation initiation factor IF2 from Bacillus stearothermophilus (741 amino acids, M r = 82 043) was subjected to trypsinolysis alone or in the presence of GTP. Following electroblotting and automated amino acid sequencing of the resulting peptides, the location and the sequential order of the main cleavage sites were identified. Trypsinolysis of IF2 ultimately generates two compact domains:...
The promoter region of Escherichia coli hns, the structural gene for the DNA-binding protein H-NS, has been identified by use of a promoter search vector and the in vivo transcriptional start point by primer extension analysis. The homologous hns genes of two other Enterobacteriaceae, Proteus vulgaris and Serratia marcescens, were identified by heterologous hybridization with a DNA probe derived from...
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