Ribulose bisphosphate carboxylase large chain

UniProtKB accession:  P00875

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UniProtKB description:  RuBisCO catalyzes two reactions: the carboxylation of D-ribulose 1,5-bisphosphate, the primary event in carbon dioxide fixation, as well as the oxidative fragmentation of the pentose substrate in the photorespiration process (PubMed:2928307) (Probable). Both reactions occur simultaneously and in competition at the same active site (Probable). Binds to abscisic acid (ABA) which has weakly inhibits carboxylation and more strongly inhibits enzyme activation (PubMed:26197050).