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Introduction
Basic Energy Concepts
Enzymes
Types of Catabolism
Fermentation
Feremented Foods
Respiration
Catabolism of Fats
Catabolism of Proteins
Amazing Respirations
Membranes and
Energy Generation

Anaerobic Respiration
Lithotrophs
Photosynthesis
Summary of Catabolism
Anabolism
Collecting Elements
Synthesizing Monomers
Carbon Assimilation
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Other Assimilation
Formation of
Amino Acids

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Making Polymers
Structural Assembly
Amphibolic Pathways

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The Mechanism of ATP Synthesis

©1999 Timothy Paustian, University of Wisconsin-Madison

ATP synthase is driven by proton exchanges on subunit c. It is thought that when subunit c moves near subunit a, it interacts with it, losing a proton off an acidic amino acid. The released proton moves into the cytoplasm. A new proton from the periplasm enters through a channel in subunit a and interupts this interaction, causing subunit c to move away from subunit a and turning F1 relative to F0.

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