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Eur J Cell Biol. 2010 Dec;89(12):906-16. doi: 10.1016/j.ejcb.2010.08.003. Epub 2010 Sep 15.

RIP3 and AtKinesin-13A - a novel interaction linking Rho proteins of plants to microtubules.

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Max Planck Institute of Molecular Physiology, Structural Biology Department, Otto Hahn Strasse 11, 44227 Dortmund, Germany.


RIP3 belongs to a group of recently identified proteins, classified as the ICR/RIP family whose members were described to interact with Rho proteins of plants (ROPs). Our in vivo and in vitro data demonstrate that RIP3 is a true ROP effector, interacting specifically with the active form of ROPs. We found that RIP3 has properties and cellular roles different from the previously described RIP family member ICR1/RIP1. We show that RIP3 is localized at microtubules and interacts with the kinesin-13 family member AtKinesin-13A, suggesting a role for RIP3 in microtubule reorganization and a possible function in ROP-regulated polar growth.

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