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Related Concept Videos

ATP Synthase: Structure01:18

ATP Synthase: Structure

14.5K
ATP synthase or ATPase is among the most conserved proteins found in bacteria, mammals, and plants. This enzyme can catalyze a forward reaction in response to the electrochemical gradient, producing ATP from ADP and inorganic phosphate. ATP synthase can also work in a reverse direction by hydrolyzing ATP and generating an electrochemical gradient. Different forms of ATP synthases have evolved special features to meet the specific demands of the cell. Based on their specific feature, ATP...
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ATP Synthase: Mechanism01:48

ATP Synthase: Mechanism

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In animals, the mitochondrial F1F0 ATP synthase is the key protein that synthesizes ATP molecules through a complex catalytic mechanism. While the nuclear genome encodes the majority of ATP synthase subunits, the mitochondrial genome encodes some of the enzyme's most critical components. The formation of this multi-subunit enzyme is a complex multi-step process regulated at the level of transcription, translation, and assembly. Defects in one or more of these steps can result in decreased...
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ATP Driven Pumps I: An Overview01:27

ATP Driven Pumps I: An Overview

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ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
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Chemiosmosis and ATP Synthesis01:22

Chemiosmosis and ATP Synthesis

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The electron transport chain is a critical component of cellular respiration, occurring in the inner mitochondrial membrane. It facilitates the transfer of high-energy electrons from reduced cofactors NADH and FADH₂ to molecular oxygen, the final electron acceptor. This transfer of electrons through a series of protein complexes is tightly coupled to the translocation of protons across the membrane, generating a proton gradient essential for ATP synthesis.Electron Flow and Proton...
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Energy to Drive Translocation01:37

Energy to Drive Translocation

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Mitochondrial protein import is powered by two distinct energy sources: ATP hydrolysis and electrochemical potential across the inner membrane. Newly synthesized precursors are bound by cytosolic chaperones of the Hsp70 family, which guide them to the import receptors on the mitochondrial surface. Utilizing the energy of ATP hydrolysis, Hsp70 chaperones transfer these precursors to the TOM receptors on the mitochondrial outer membrane.
Generally, polypeptides are unfolded by two distinct...
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The ADP/ATP Carrier Protein01:42

The ADP/ATP Carrier Protein

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ADP/ATP carrier or AAC protein is the most abundant carrier protein in the inner mitochondrial membrane. It transports large quantities of ADP and ATP, equivalent to the average human body weight, every day. Among other transporters, ACC protein is one of the best-studied members of the mitochondrial carrier protein family. The ADP/ATP carrier protein comprises two transmembrane helices connected to a loop and a single alpha-helix on the matrix side. It switches between two conformational...
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Related Experiment Video

Updated: Dec 8, 2025

Visualization of ATP Synthase Dimers in Mitochondria by Electron Cryo-tomography
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ATP synthase: Evolution, energetics, and membrane interactions.

Jasmine A Nirody1,2, Itay Budin3, Padmini Rangamani4

  • 1Center for Studies in Physics and Biology, The Rockefeller University, New York, NY.

The Journal of General Physiology
|September 23, 2020
PubMed
Summary

Adenosine triphosphate (ATP) synthases are vital enzymes. This review explores how variations in ATP synthase structure and function across species reflect evolutionary adaptations, particularly in response to their lipid environments.

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Last Updated: Dec 8, 2025

Visualization of ATP Synthase Dimers in Mitochondria by Electron Cryo-tomography
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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Evolutionary Biology

Background:

  • Adenosine triphosphate (ATP) is the universal energy currency fueling cellular processes.
  • ATP synthases are essential enzymes responsible for ATP production, found across all domains of life.
  • F-type ATP synthases (ATPases) are crucial for organism survival in diverse environments.

Purpose of the Study:

  • To review structural and functional variations in F-type ATPases across taxa.
  • To explore the evolutionary significance of these variations, including ion channel selectivity, rotor ring size, and dimer structure.
  • To emphasize the role of the lipid environment in shaping ATP synthase evolution.

Main Methods:

  • Comparative analysis of structural and functional data from various species.
  • Review of existing literature on ATP synthase molecular biology and evolution.
  • Integration of findings within the context of membrane lipid environments.

Main Results:

  • F-type ATPases exhibit diverse features, such as ion channel selectivity and rotor ring stoichiometry, that vary across different life forms.
  • These variations are proposed to be adaptive, reflecting evolutionary pressures.
  • The specific lipid environment significantly influences ATP synthase structure, function, and evolutionary trajectory.

Conclusions:

  • Understanding ATP synthase evolution requires an integrative approach, considering both molecular details and environmental context.
  • The lipid membrane environment is a critical factor in the adaptation and evolution of ATP synthases.
  • A comprehensive view is necessary for a complete understanding of membrane protein evolution.