Calvin Cycle

When cursor points to a box further details will be displayed in a tooltip window. If you click on the box you will change to appropriate reaction scheme or enzyme specification.

For compounds involved in more than one reaction the small numbers against the arrow indicate the number of molecules proceeding along each branch. Similarly for compounds derived from more than one reaction the number of molecules derived from each route are indicated by a small number against the arrow.

For the same reaction scheme but showing structures click here.

The net overall reaction is:

6 CO₂ + 12 NADPH + 18 ATP + 11 H₂O = D-glucose 6-phosphate + 12 NADP⁺ + 18 ADP + 17 phosphate

Note Click here for mechanism of EC 4.1.2.13, fructose-bisphosphate aldolase (drawn in reverse direction).

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enzymes homepage.
EC 1.2.1.13 glyceraldehyde-3-phosphate dehydrogenase (NADP) (phosphorylating)
EC 2.2.1.1 transketolase (mechanism)
EC 2.7.1.19 phosphoribulokinase
EC 2.7.2.3 phosphoglycerate kinase
EC 3.1.3.11 fructose-bisphosphatase
EC 3.1.3.37 sedoheptulose-bisphosphatase
EC 4.1.1.39 ribulose-bisphosphate carboxylase
EC 4.1.2.13 fructose-bisphosphate aldolase (mechanism)
EC 5.1.3.1 ribulose-phosphate 3-epimerase
EC 5.3.1.1 triose-phosphate isomerase
EC 5.3.1.6 ribose-5-phosphate isomerase
EC 5.3.1.9 glucose-6-phosphate isomerase