3J1U

Low affinity dynein microtubule binding domain - tubulin complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.7 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural basis for microtubule binding and release by dynein.

Redwine, W.B.Hernandez-Lopez, R.Zou, S.Huang, J.Reck-Peterson, S.L.Leschziner, A.E.

(2012) Science 337: 1532-1536

  • DOI: 10.1126/science.1224151
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Cytoplasmic dynein is a microtubule-based motor required for intracellular transport and cell division. Its movement involves coupling cycles of track binding and release with cycles of force-generating nucleotide hydrolysis. How this is accomplished ...

    Cytoplasmic dynein is a microtubule-based motor required for intracellular transport and cell division. Its movement involves coupling cycles of track binding and release with cycles of force-generating nucleotide hydrolysis. How this is accomplished given the ~25 nanometers separating dynein's track- and nucleotide-binding sites is not understood. Here, we present a subnanometer-resolution structure of dynein's microtubule-binding domain bound to microtubules by cryo-electron microscopy that was used to generate a pseudo-atomic model of the complex with molecular dynamics. We identified large rearrangements triggered by track binding and specific interactions, confirmed by mutagenesis and single-molecule motility assays, which tune dynein's affinity for microtubules. Our results provide a molecular model for how dynein's binding to microtubules is communicated to the rest of the motor.


    Organizational Affiliation

    Department of Molecular and Cellular Biology, Harvard University, 52 Oxford Street, Cambridge, MA 02138, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cytoplasmic dynein 1 heavy chain 1, seryl t-RNA synthetase chimera
A
164Mus musculusMutation(s): 0 
Gene Names: Dync1h1 (Dhc1, Dnch1, Dnchc1, Dyhc)
Find proteins for Q9JHU4 (Mus musculus)
Go to UniProtKB:  Q9JHU4
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Tubulin alpha-1B chain
B
451Bos taurusMutation(s): 0 
Find proteins for P81947 (Bos taurus)
Go to UniProtKB:  P81947
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Tubulin beta-2B chain
C
427Bos taurusMutation(s): 0 
Gene Names: TUBB2B
Find proteins for Q6B856 (Bos taurus)
Go to Gene View: TUBB2B
Go to UniProtKB:  Q6B856
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.7 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-09-26
    Type: Initial release
  • Version 1.1: 2012-10-03
    Type: Database references
  • Version 1.2: 2014-08-27
    Type: Other
  • Version 1.3: 2018-07-18
    Type: Author supporting evidence, Data collection