Information transfer in multienzyme complexes--2. The role of Arg64 of Chlamydomonas reinhardtii phosphoribulokinase in the information transfer between glyceraldehyde-3-phosphate dehydrogenase and phosphoribulokinase.

Abstract excerpt

A mutant phosphoribulokinase has been isolated from the 12-2B mutant of Chlamydomonas reinhardtii. In this mutant, Arg64 has been replaced by Cys. The enzyme, which may exist in the dimeric and tetrameric states, is almost devoid of activity. Neither of these enzymes is able to form a complex with glyceraldehyde-3-phosphate dehydrogenase. The phosphoribulokinase gene has been expressed in Escherichia coli. The...

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