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Unformatted text preview: E.g., COP I, COP II, clathrin, kinectin. d. How many steps can this motor protein make in one second? 375 steps per second; or 2250 steps per minute. e. A neuron has to tranport acetylcholine packaged in a vesicle from near the nucleus, down the axon, to the tip for release at a synapse. The length of the axon is 600 micrometers. Assuming the motor protein doesnt stumble and fall off the MT, how many minutes will it take to deliver the cargo vesicle? 3.3 minutes to travel 600 micrometers. f. What two cytoplasmic parameters might influence the rate of cargo movement? i) availablility of ATP ii) Frictional resistance to motion due to cytoplasmic viscosity (high protein concentrations, particularly cytosleletal proteins, in the cytoplasm)....
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This note was uploaded on 04/06/2011 for the course BIS 104 taught by Professor Scholey during the Spring '08 term at UC Davis.
- Spring '08
- cell biology