Abstract

Although extensive studies have been conducted on the assembly of the allosteric enzyme, aspartate transcarbamoylase (ATCase) from isolate, intact catalytic (C) and regulatory (R) subunits, there has been little research on the formation of these subunits from individual catalytic (c) and regulatory (r) polypeptide chains. Such studies would be useful for evaluating the strengths of the interchain bonding domains within the subunits just as earlier experiments provided valuable data regarding interactions between the subunits in ATCase. The intact enzyme comprising two C trimers and three R dimers is designated as C/sub 2/R/sub 3/ or c/sub 6/r/sub 6/.

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