FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term reductive pentose-phosphate cycle ID (Ontology) GO:0019253 (Gene Ontology)
Definition The fixation of carbon dioxide (CO2) as glucose in the chloroplasts of C3 plants; uses ATP and NADPH formed in the light reactions of photosynthesis; carbon dioxide reacts with ribulose 1,5-bisphosphate (catalyzed by the function of ribulose-bisphosphate carboxylase) to yield two molecules of 3-phosphoglycerate; these are then phosphorylated by ATP to 1,3-bisphosphateglyceraldehyde which, in turn, is then reduced by NADPH to glyceraldehyde 3-phosphate. The glyceraldehyde 3-phosphate is converted to fructose 5-phosphate and ribulose 5-phosphate by aldolase and other enzymes; the ribulose 5-phosphate is phosphorylated by ATP to ribulose 1,5-bisphosphate.[ ISBN:0198547684 ]
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metabolic process
 |__carbon fixation________________
photosynthesis                     |
 |__photosynthesis, dark reaction__|
carbohydrate biosynthetic process  |
 |__photosynthesis, dark reaction__|
                                   reductive pentose-phosphate cycle
                                    |__regulation of reductive pentose-phosphate cycle
                                        |__negative regulation of reductive pentose-phosphate cycle
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Is a photosynthesis, dark reaction
Part of carbon fixation
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Synonyms
  • "C3 photosynthesis" NARROW
    "Calvin cycle" NARROW
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MetaCyc:CALVIN-PWY