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The hexameric regulatory protein ArgR formed by arginine-mediated dimerization of identical trimers governs the expression of genes required for arginine metabolism and some other genes in mesophilic(More)
The degree of sequence conservation of arginine repressor proteins (ArgR) and of the cognate operators (tandem pairs of 18 bp imperfect palindromes, ARG boxes) in evolutionarily distant bacteria is(More)
A 3.4 kb EcoRI fragment, cloned in E. coli, that carries part of a cluster of genes encoding arginine biosynthetic functions of the thermophilic bacterium Bacillus stearothermophilus, was sequenced(More)