5JCY

Spir2-GTBM bound to MyoVa-GTD


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.151 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Coordinated recruitment of Spir actin nucleators and myosin V motors to Rab11 vesicle membranes.

Pylypenko, O.Welz, T.Tittel, J.Kollmar, M.Chardon, F.Malherbe, G.Weiss, S.Michel, C.I.Samol-Wolf, A.Grasskamp, A.T.Hume, A.Goud, B.Baron, B.England, P.Titus, M.A.Schwille, P.Weidemann, T.Houdusse, A.Kerkhoff, E.

(2016) Elife 5: --

  • DOI: 10.7554/eLife.17523
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • There is growing evidence for a coupling of actin assembly and myosin motor activity in cells. However, mechanisms for recruitment of actin nucleators and motors on specific membrane compartments remain unclear. Here we report how Spir actin nucleato ...

    There is growing evidence for a coupling of actin assembly and myosin motor activity in cells. However, mechanisms for recruitment of actin nucleators and motors on specific membrane compartments remain unclear. Here we report how Spir actin nucleators and myosin V motors coordinate their specific membrane recruitment. The myosin V globular tail domain (MyoV-GTD) interacts directly with an evolutionarily conserved Spir sequence motif. We determined crystal structures of MyoVa-GTD bound either to the Spir-2 motif or to Rab11 and show that a Spir-2:MyoVa:Rab11 complex can form. The ternary complex architecture explains how Rab11 vesicles support coordinated F-actin nucleation and myosin force generation for vesicle transport and tethering. New insights are also provided into how myosin activation can be coupled with the generation of actin tracks. Since MyoV binds several Rab GTPases, synchronized nucleator and motor targeting could provide a common mechanism to control force generation and motility in different cellular processes.


    Organizational Affiliation

    Institut Curie, PSL Research University, CNRS, UMR 144, F-75005, Paris, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Unconventional myosin-Va
A
397Homo sapiensMutation(s): 0 
Gene Names: MYO5A (MYH12)
Find proteins for Q9Y4I1 (Homo sapiens)
Go to Gene View: MYO5A
Go to UniProtKB:  Q9Y4I1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Protein spire homolog 2
B
27Homo sapiensMutation(s): 0 
Gene Names: SPIRE2 (KIAA1832, SPIR2)
Find proteins for Q8WWL2 (Homo sapiens)
Go to Gene View: SPIRE2
Go to UniProtKB:  Q8WWL2
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.191 
  • R-Value Work: 0.151 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 99.610α = 90.00
b = 41.220β = 115.89
c = 108.220γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
PHENIXrefinement
XDSdata reduction
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
French National Research AgencyFranceANR-13-BSV8-0019-01

Revision History 

  • Version 1.0: 2016-09-28
    Type: Initial release
  • Version 1.1: 2017-09-06
    Type: Author supporting evidence