Pyruvate, phosphate dikinase
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Pyruvate, phosphate dikinase, or PPDK is an enzyme in the family of transferases that catalyzes the chemical reaction
Pyruvate phosphate dikinase dimer, Clostridium symbiosum (PDB: 1KC7)
PPDK is inactivated when PPDK Regulatory Protein (PDRP) phosphorylates Thr456. PDRP both activates and inactivates PPDK.
Biological carbon fixation
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Biological carbon fixation, or carbon assimilation, is the process by which living organisms convert inorganic carbon to organic compounds. These organic compounds are then used to store energy and as
Cyanobacteria such as these carry out photosynthesis. Their emergence foreshadowed the evolution of many photosynthetic plants and oxygenated Earth's atmosphere.
Overview of the six known biological carbon fixation cycles