3RYH
GMPCPP-Tubulin: RB3 Stathmin-like domain complex
Summary for 3RYH
Entry DOI | 10.2210/pdb3ryh/pdb |
Related | 3RYC 3RYF 3RYI |
Descriptor | Tubulin alpha chain, Tubulin beta chain, Stathmin-4, ... (8 entities in total) |
Functional Keywords | alpha-tubulin, beta-tubulin, gmpcpp, gtpase, microtubule, stathmin s-tubulin, subtilisin, tubulin, cell cycle |
Biological source | Rattus norvegicus (rat) More |
Total number of polymer chains | 5 |
Total formula weight | 220197.11 |
Authors | Nawrotek, A.,Knossow, M.,Gigant, B. (deposition date: 2011-05-11, release date: 2011-10-05, Last modification date: 2024-11-20) |
Primary citation | Nawrotek, A.,Knossow, M.,Gigant, B. The Determinants That Govern Microtubule Assembly from the Atomic Structure of GTP-Tubulin. J.Mol.Biol., 412:35-42, 2011 Cited by PubMed Abstract: Tubulin alternates between a soluble curved structure and a microtubule straight conformation. GTP binding to αβ-tubulin is required for microtubule assembly, but whether this triggers conversion into a straighter structure is still debated. This is due, at least in part, to the lack of structural data for GTP-tubulin before assembly. Here, we report atomic-resolution crystal structures of soluble tubulin in the GDP and GTP nucleotide states in a complex with a stathmin-like domain. The structures differ locally in the neighborhood of the nucleotide. A loop movement in GTP-bound tubulin favors its recruitment to the ends of growing microtubules and facilitates its curved-to-straight transition, but this conversion has not proceeded yet. The data therefore argue for the conformational change toward the straight structure occurring as microtubule-specific contacts are established. They also suggest a model for the way the tubulin structure is modified in relation to microtubule assembly. PubMed: 21787788DOI: 10.1016/j.jmb.2011.07.029 PDB entries with the same primary citation |
Experimental method | X-RAY DIFFRACTION (2.8 Å) |
Structure validation
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