This enzyme's substrate is regenerated in a cycle of transketolases and transaldolases that converts five three-carbon compounds to three five-carbon compounds.
Carbonic anhydrase and this protein localize to the octahedral microcompartments found in Synechococcus . This enzyme's substrate is regenerated in a cycle of transketolases and transaldolases that converts five three-carbon compounds to three five-carbon compounds. This protein, which is oddly active at a pH of 8, has a turnover number around one ha Hertz, making it one of the (*)  slowest enzymes. It turns ribulose 1,5-bisphosphate to 3-phosphoglycerate. This protein is segregated to bundle-sheath cells and is kept out of mesophyll cells in C4 organisms, which prevents its wasteful photorespiration. It adds carbon dioxideCO2 to organic sugars in the Calvin cycle. For 10 points, name this most abundant protein on Earth, which makes up about half the weight of photosynthetic leaves.
Carbonic anhydrase and this protein localize to the octahedral microcompartments found in Synechococcus .
RuBisCo  [or  ribulose bisphosphate carboxylase ; or  ribulose 1,5-bisphosphate carboxylase ; or RuBPC ase]