Purity ~90% (SDS-PAGE). 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. Both reactions occur simultaneously and in competition at the same active site. Source: Recombinant protein corresponding to aa3-475 from glycine max RBCL, fused to His-SUMO-Tag at N-terminal, expressed in E. coli. Molecular Weight: ~68.4kD AA