Chapter 13 - Cytoskeletal Systems Chapter 13, Question 5 9 of 12 Part B The poly

Question

Chapter 13 - Cytoskeletal Systems Chapter 13, Question 5 9 of 12 Part B The polymerization of G-actin into microfilaments can be followed using pyrene-labeled actin and a device to measure the fluorescence of polymerized actin in a test tube. The increase in fluorescence can then be plotted over time, similar to light-scattering experiments to measure tubulin polymerization (see the figure below). In each case, state your reasoning Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Terms can be used once, more than once, or not at all. Reset Help 1 without Arp2/3 or polymerization increases, but not as much as WASP with Arp2r3 with WASP with Arp2/3 and WASP family proteins family proteins polymerization is very slow. family proteins polymerization is very fast. Time Actin Polymerization Kinetics Measured by Pyrene Actin Incorporation Under Various Experimental Conditions. Submit

Explanation / Answer

With Arp2/3 polymerization increases, but not as much as with Arp2/3 and WASP family proteins.

Without Arp2/ 3 or WASP family proteins, polymerization is very slow.

With Arp2/ 3 and WASP family proteins polymerization is very fast..

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