4F61

Tubulin:Stathmin-like domain complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.17 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.241 
  • R-Value Observed: 0.242 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Design and characterization of modular scaffolds for tubulin assembly.

Mignot, I.Pecqueur, L.Dorleans, A.Karuppasamy, M.Ravelli, R.B.Dreier, B.Pluckthun, A.Knossow, M.Gigant, B.

(2012) J Biol Chem 287: 31085-31094

  • DOI: 10.1074/jbc.M112.383869
  • Primary Citation of Related Structures:  
    4F61, 4F6R

  • PubMed Abstract: 
  • In cells, microtubule dynamics is regulated by stabilizing and destabilizing factors. Whereas proteins in both categories have been identified, their mechanism of action is rarely understood at the molecular level. This is due in part to the difficulties faced in structural approaches to obtain atomic models when tubulin is involved ...

    In cells, microtubule dynamics is regulated by stabilizing and destabilizing factors. Whereas proteins in both categories have been identified, their mechanism of action is rarely understood at the molecular level. This is due in part to the difficulties faced in structural approaches to obtain atomic models when tubulin is involved. Here, we design and characterize new stathmin-like domain (SLD) proteins that sequester tubulins in numbers different from two, the number of tubulins bound by stathmin or by the SLD of RB3, two stathmin family members that have been extensively studied. We established rules for the design of tight tubulin-SLD assemblies and applied them to complexes containing one to four tubulin heterodimers. Biochemical and structural experiments showed that the engineered SLDs behaved as expected. The new SLDs will be tools for structural studies of microtubule regulation. The larger complexes will be useful for cryo-electron microscopy, whereas crystallography or nuclear magnetic resonance will benefit from the 1:1 tubulin-SLD assembly. Finally, our results provide new insight into SLD function, suggesting that a major effect of these phosphorylatable proteins is the programmed release of sequestered tubulin for microtubule assembly at the specific cellular locations of members of the stathmin family.


    Organizational Affiliation

    Laboratoire d'Enzymologie et Biochimie Structurales, Centre de Recherche de Gif, CNRS, Bâtiment 34, 1 avenue de la Terrasse, 91198 Gif sur Yvette, France.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Tubulin alpha chain ACEG451Ovis ariesMutation(s): 0 
Find proteins for D0VWZ0 (Ovis aries)
Explore D0VWZ0 
Go to UniProtKB:  D0VWZ0
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Tubulin beta chain BDFH445Ovis ariesMutation(s): 0 
Find proteins for D0VWY9 (Ovis aries)
Explore D0VWY9 
Go to UniProtKB:  D0VWY9
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Stathmin-like domain R4 I240synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.17 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.241 
  • R-Value Observed: 0.242 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 639.74α = 90
b = 66.1β = 92.02
c = 128.13γ = 90
Software Package:
Software NamePurpose
AMoREphasing
BUSTERrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-07-18
    Type: Initial release
  • Version 1.1: 2012-09-26
    Changes: Database references