Polyamino acids, thermal catalytic actions

V. Summary of Catalytic Actions of Thermal Polyamino Acids. 409... 

Various definitions of the term catalyst can be categorized into those that require the regeneration of the promoting species, and those that do not. Usage of definitions that fall into either category can be found [e.g., Leuthardt (27) Laidler (28)]. Some of the actions of thermal polyamino acids have been proven, by various criteria, to be catalytic in the... 

To date, four main types of catalytic activity have been reported in detail for thermal polyamino acids. These are (with the most studied substrates in parentheses) hydrolyses (p-nitrophenyl acetate, p-nitro-phenyl phosphate, ATP), decarboxylations (OAA, glucuronic acid, pyruvic acid), and aminations (a-ketoglutaric acid, OAA, pyruvic acid, phenylpyruvic acid). The fourth type is a deamination reaction yielding a-ketoglutaric acid (51). For some of the actions of the thermal polymers the products are identified quantitatively, and the kinds of amino acid side chain necessary for activity in the polymer elucidated. In others, products have yet to be fully identified. The activities of thermal polyamino acids are manifest on substrates which range from chemically labile to relatively stable. 

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See also in sourсe #XX -- [ , , , , , ]

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