Structure of the Cargo Binding Domain from Human Myosin Va

Experimental Data Snapshot

  • Resolution: 2.20 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.208 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


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: https://doi.org/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. 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

    Department of Cellular & Molecular Biology, Ribeirão Preto Medical School, University of São Paulo, São Paulo 14049-900, Brazil.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Unconventional myosin-Va
A, B
408Homo sapiensMutation(s): 0 
Gene Names: MYH12MYO5A
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y4I1 (Homo sapiens)
Explore Q9Y4I1 
Go to UniProtKB:  Q9Y4I1
GTEx:  ENSG00000197535 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y4I1
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.20 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.208 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.799α = 90
b = 79.494β = 105.77
c = 94.139γ = 90
Software Package:
Software NamePurpose
NatXraydata collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

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
  • Version 1.3: 2017-11-15
    Changes: Advisory, Refinement description
  • Version 1.4: 2024-02-28
    Changes: Advisory, Data collection, Database references, Derived calculations