4L8T

Structure of the Cargo Binding Domain from Human Myosin Vc


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.225 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Insights into Functional Overlapping and Differentiation among Myosin V Motors.

Nascimento, A.F.Trindade, D.M.Tonoli, C.C.de Giuseppe, P.O.Assis, L.H.Honorato, R.V.de Oliveira, P.S.Mahajan, P.Burgess-Brown, N.A.von Delft, F.Larson, R.E.Murakami, M.T.

(2013) J Biol Chem 288: 34131-34145

  • DOI: 10.1074/jbc.M113.507202
  • Primary Citation of Related Structures:  
    4J5L, 4J5M, 4L8T

  • PubMed Abstract: 
  • Myosin V (MyoV) motors have been implicated in the intracellular transport of diverse cargoes including vesicles, organelles, RNA-protein complexes, and regulatory proteins. Here, we have solved the cargo-binding domain (CBD) structures of the three human MyoV paralogs (Va, Vb, and Vc), revealing subtle structural changes that drive functional differentiation and a novel redox mechanism controlling the CBD dimerization process, which is unique for the MyoVc subclass ...

    Myosin V (MyoV) motors have been implicated in the intracellular transport of diverse cargoes including vesicles, organelles, RNA-protein complexes, and regulatory proteins. Here, we have solved the cargo-binding domain (CBD) structures of the three human MyoV paralogs (Va, Vb, and Vc), revealing subtle structural changes that drive functional differentiation and a novel redox mechanism controlling the CBD dimerization process, which is unique for the MyoVc subclass. Moreover, the cargo- and motor-binding sites were structurally assigned, indicating the conservation of residues involved in the recognition of adaptors for peroxisome transport and providing high resolution insights into motor domain inhibition by CBD. These results contribute to understanding the structural requirements for cargo transport, autoinhibition, and regulatory mechanisms in myosin V motors.


    Organizational Affiliation

    From the Brazilian Biosciences National Laboratory, National Center for Research in Energy and Materials, Campinas, São Paulo 13083-100, Brazil.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Unconventional myosin-VcA447Homo sapiensMutation(s): 0 
Gene Names: MYO5C
Find proteins for Q9NQX4 (Homo sapiens)
Explore Q9NQX4 
Go to UniProtKB:  Q9NQX4
NIH Common Fund Data Resources
PHAROS:  Q9NQX4
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.225 
  • Space Group: P 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 116.399α = 90
b = 116.399β = 90
c = 114.752γ = 90
Software Package:
Software NamePurpose
NatXraydata collection
PHASERphasing
PHENIXrefinement
XDSdata reduction
XDSdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-10-09
    Type: Initial release
  • Version 1.1: 2013-10-23
    Changes: Database references
  • Version 1.2: 2013-12-11
    Changes: Database references