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Kinesins microtubule complex

A detailed view of the kinesin-microtubule complex has been obtained by combining high-resolution structures of the individual components from X-ray crystallography (kinesin) and electron diffraction (tubulin Lowe et al., 2001 Nogales et al, 1998) with low-resolution models of kinesin-decorated microtubules obtained by cryoelectron microscopy and image reconstruction (Hirose et al, 1999 Hoenger et al., 2000 Kikkawa et al, 2001 Kozielski et al., 1998 Rice et al., 1999 Skiniotis et al., 2003 Wendt... [Pg.308]

Hackney DD. 2005. The tethered motor domain of a kinesin-microtubule complex catalyzes reversible synthesis of bound ATP. Proceedings of the National Academy of Sciences of USA 102 18338. [Pg.19]

The membrane tubules and lamellae of the endoplasmic reticulum (ER) are extended in the cell with the use of MTs and actin filaments. Kinesin motors are required for stretching out the ER, whereas depolymerization of microtubules causes the retraction of the ER to the cell centre in an actin-dependent manner. Newly synthesized proteins in the ER are moved by dynein motors along MTs to the Golgi complex (GC), where they are modified and packaged. The resulting vesicles move along the MTs to the cell periphery transported by kinesin motors. MTs determine the shape and the position also of the GC. Their depolymerization causes the fragmentation and dispersal of the GC. Dynein motors are required to rebuild the GC. [Pg.415]

Fig. 7. General structures of a number of different motors (A) myosin II interacting with actin, (B) kinesin carrying a cargo and interacting with a microtubule, and (C) cytoplasmic dynein, with its associated cargo-laden dynactin complex, interacting with a microtubule. Fig. 7. General structures of a number of different motors (A) myosin II interacting with actin, (B) kinesin carrying a cargo and interacting with a microtubule, and (C) cytoplasmic dynein, with its associated cargo-laden dynactin complex, interacting with a microtubule.
Hirose, K., Lowe,J., Alonso, M., Cross, R. A., and Amos, L. A. (1999). Congruent docking of dimeric kinesin and ncd into three-dimensional electron cryomicroscopy maps of microtubule-motor ADP complexes. Mol. Biol. CeU 10, 2063-2074. [Pg.340]

Kozielski, F., Amal, I., and Wade, R. H. (1998). A model of the microtubule-kinesin complex based on electron cryomicroscopy and X-ray crystallograhpy. Curr Biol. 8, 191-198. [Pg.341]

Mishima, M., Kaitna, S., Glotzer, M. (2002). Central spindle assembly and cytokinesis require a kinesin-like protein/RhoGAP complex with microtubule bundling activity. Developmental CeU, 2, 41-54. [Pg.444]


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