Nature's Incredible ROTATING MOTOR (It’s Electric!) - Smarter Every Day 300
A video on YouTube. In Science & Engineering, a Krater category.
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Smarter Every Day visits Vanderbilt University to explore the cryo-EM structure and mechanics of the bacterial flagellar motor, talking with researchers Prashant Singh and Tina Iverson.
From the video
Answers: How does the bacterial flagellar motor work and how do scientists image it?
- Bacterial flagellar motor structure
- Cryo-electron microscopy
- Chemotaxis mechanism
- MotAB stator complex
- Protein structure determination
What it concludes
- The bacterial flagellar motor uses a proton gradient across the inner membrane to generate torque and rotate.
- CheY protein binds to the motor to encourage it to turn in a clockwise direction.
- Cryo-electron microscopy allows researchers to image bacterial flagellar motor structures down to the amino acid level by combining 2D class averages into 3D models.
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