[Polyfunctional enzymes].
The properties of enzymes possessing several autonomous functions distributed among the domains of the polypeptide chain are considered. Three types of such proteins have been characterized: (i) bifunctional enzymes catalyzing consecutive reactions of metabolism: (ii) enzymes capable of catalyzing different reactions that are not consecutive and, (iii) enzymes catalyzing oppositely directed reactions. Possible advantages of various reactions catalyzed by the same protein are discussed.
Nagrdova
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D002384:Catalysis; D004798:Enzymes / Q000378:metabolism*
D004798:Enzymes