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| LOCALIZATION OF AN EXCHANGEABLE GTP-BINDING SITE AT THE PLUS END OF MICROTUBULES |
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| Author(s): MITCHISON TJ |
| Source: SCIENCE Volume: 261 Issue: 5124 Pages: 1044-1047 Published: AUG 20 1993 |
| Times Cited: 93 References: 18 |
| Abstract: Microtubule polarity arises from the head-to-tall orientation of alpha-beta tubulin heterodimers in the microtubule lattice. The identity of the polypeptide at each end of the microtubule is unknown, but structural models predict that the beta-tubulin end contains an exchangeable guanosine triphosphate (GTP) binding site. When GTP-coated fluorescent beads were incubated with microtubules, they bound specifically to plus ends, suggesting that tubulin is oriented in microtubules with beta-tubulin toward the plus end. |
| Document Type: Article |
| Language: English |
| Reprint Address: MITCHISON, TJ (reprint author), UNIV CALIF SAN FRANCISCO, DEPT PHARMACOL, SAN FRANCISCO, CA 94143 USA |
| Publisher: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 |
| Subject Category: Multidisciplinary Sciences |
| IDS Number: LT747 |
| ISSN: 0036-8075 |
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| |  |  |  |  | | | | Record from Web of Science® | |  |  | | | | | | |