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3RYH

GMPCPP-Tubulin: RB3 Stathmin-like domain complex

Summary for 3RYH
Entry DOI10.2210/pdb3ryh/pdb
Related3RYC 3RYF 3RYI
DescriptorTubulin alpha chain, Tubulin beta chain, Stathmin-4, ... (8 entities in total)
Functional Keywordsalpha-tubulin, beta-tubulin, gmpcpp, gtpase, microtubule, stathmin s-tubulin, subtilisin, tubulin, cell cycle
Biological sourceRattus norvegicus (rat)
More
Total number of polymer chains5
Total formula weight220197.11
Authors
Nawrotek, A.,Knossow, M.,Gigant, B. (deposition date: 2011-05-11, release date: 2011-10-05, Last modification date: 2023-09-13)
Primary citationNawrotek, 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: 21787788
DOI: 10.1016/j.jmb.2011.07.029
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (2.8 Å)
Structure validation

226707

数据于2024-10-30公开中

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