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  • Title: Retention of the oxygens at C-2 and C-3 of D-ribulose 1,5-bisphosphate in the reaction catalyzed by ribulose-1,5-bisphosphate carboxylase.
    Author: Sue JM, Knowles JR.
    Journal: Biochemistry; 1978 Sep 19; 17(19):4041-4. PubMed ID: 101236.
    Abstract:
    Ribulose-1,5-bisphosphate carboxylase catalyzes the conversion of D ribulose 1,5-bisphosphate and CO2 to 3-phospho-D-glycerate, with retention of the oxygen atoms at both C-2 and C-3 of the substrate. This observation is consistent with mechanistic pathways involving an enediol intermediate and eliminates suggested mechanisms that involve covalent intermediates between the enzyme and ribulose 1,5-bisphosphate in which the substrate oxygen at C-2 or C-3 is compulsorily lost.
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