Its active site consists of three amino acids, including a modified form of lysine, chelated to a magnesium ion, and it consists of eight large and eight small protein chains. Remarkably inefficient, this enzyme has an activity rate of 3 molecules per second and such poor specificity as to bind to oxygen instead of carbon dioxide. Its function is to attach carbon dioxide to its namesake compound, a five-carbon sugar, and 
Its active site consists of three amino acids, including a modified form of lysine, chelated to a magnesium ion, and it consists of eight large and eight small protein chains. Remarkably inefficient, this enzyme has an activity rate of 3 molecules per second and such poor specificity as to bind to oxygen instead of carbon dioxide. Its function is to attach carbon dioxide to its namesake compound, a five-carbon sugar, and then clip the molecule into two three-carbon phosphoglycerates. FTP, identify this plant enzyme found in the dark reactions of the Calvin cycle, the most abundant protein on earth.
Its active site consists of three amino acids, including a modified form of lysine, chelated to a magnesium ion, and it consists of eight large and eight small protein chains.
{rubisco} or {ribulose biphosphate carboxylase/oxygenase}