Subunit complementation of Escherichia coli adenylosuccinate synthetase.

Abstract excerpt

Data are presented, based upon subunit complementation experiments, that suggest that Escherichia coli adenylosuccinate synthetase contains two shared active sites between its dimeric interface. This conclusion was alluded to by use of mutant forms of adenylosuccinate synthetase previously prepared by site-directed mutagenesis. The experiments indicate that, although the R143L and D13A mutants have low or no...

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