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Which of these proteins is responsible for depolymerization of microtubule?

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Which of these proteins is responsible for depolymerization of microtubule?

(a) Kin I kinesin

(b) CENP-E

(c) Dynein

(d) Actin

This question was posed to me in class test.

This is a very interesting question from Cell Division topic in portion Cell Structure and Functions of Life Sciences

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Correct answer is (a) Kin I kinesin

To explain I would say: CENP-E, Kin I kinesin, and dynein are the motor proteins which contain kinetochores. Out of them only Kin I kinesis is responsible for depolymerization of microtubule from its plus end while dynein generates poleward forces toward its minus end.

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