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Published on: June 15, 2017
Exploring the possibilities for radical pair effects in cryptochrome.
Ilia A Solov'yov1, Danielle E Chandler, Klaus Schulten
1Frankfurt Institute for Advanced Studies; Johann Wolfgang Goethe University; Frankfurt am Main, Germany.
Plant Signaling & Behavior
|August 26, 2009
Summary
Migratory birds may use radical pair mechanisms in cryptochrome proteins to sense magnetic fields. Our model explains this avian magnetic orientation sense and its links to plant cryptochrome research.
Area of Science:
- Biophysics
- Animal Behavior
- Quantum Biology
Background:
- Animals exhibit magnetoreception, the ability to perceive magnetic fields.
- Cryptochrome proteins are implicated in magnetoreception, particularly in birds.
- Radical pair biochemistry is a leading hypothesis for the quantum mechanism involved.
Purpose of the Study:
- To present a model explaining how radical pair effects in cryptochrome enable magnetic orientation in birds.
- To connect this model with experimental findings in plant cryptochromes.
- To outline future research directions for cryptochrome-based magnetosensing.
Main Methods:
- Theoretical modeling of radical pair reactions within cryptochrome.
- Analysis of quantum chemical principles governing spin dynamics.
- Comparison of model predictions with existing experimental data.
Main Results:
- The proposed model provides a plausible biophysical mechanism for avian magnetoreception.
- The model shows consistency with known photochemistry of cryptochromes.
- Identified key parameters for cryptochrome as a magnetic sensor.
Conclusions:
- Radical pair processes in cryptochrome offer a viable explanation for bird navigation.
- Further research on cryptochrome's quantum properties is crucial for understanding magnetoreception.
- The model serves as a foundation for exploring other biological magnetic sensors.
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