2N12

Solution structure of human Myosin VI isoform3 (1050-1131)


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 98 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 2.1 of the entry. See complete history


Literature

Diverse functions of myosin VI elucidated by an isoform-specific alpha-helix domain.

Wollscheid, H.P.Biancospino, M.He, F.Magistrati, E.Molteni, E.Lupia, M.Soffientini, P.Rottner, K.Cavallaro, U.Pozzoli, U.Mapelli, M.Walters, K.J.Polo, S.

(2016) Nat Struct Mol Biol 23: 300-308

  • DOI: https://doi.org/10.1038/nsmb.3187
  • Primary Citation of Related Structures:  
    2N12

  • PubMed Abstract: 

    Myosin VI functions in endocytosis and cell motility. Alternative splicing of myosin VI mRNA generates two distinct isoform types, myosin VI(short) and myosin VI(long), which differ in the C-terminal region. Their physiological and pathological roles remain unknown. Here we identified an isoform-specific regulatory helix, named the α2-linker, that defines specific conformations and hence determines the target selectivity of human myosin VI. The presence of the α2-linker structurally defines a new clathrin-binding domain that is unique to myosin VI(long) and masks the known RRL interaction motif. This finding is relevant to ovarian cancer, in which alternative myosin VI splicing is aberrantly regulated, and exon skipping dictates cell addiction to myosin VI(short) in tumor-cell migration. The RRL interactor optineurin contributes to this process by selectively binding myosin VI(short). Thus, the α2-linker acts like a molecular switch that assigns myosin VI to distinct endocytic (myosin VI(long)) or migratory (myosin VI(short)) functional roles.


  • Organizational Affiliation

    Fondazione Istituto FIRC di Oncologia Molecolare (IFOM), Milan 20139, Italy.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Unconventional myosin-VI82Homo sapiensMutation(s): 0 
Gene Names: MYO6KIAA0389
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UM54 (Homo sapiens)
Explore Q9UM54 
Go to UniProtKB:  Q9UM54
PHAROS:  Q9UM54
GTEx:  ENSG00000196586 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UM54
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 98 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Cancer Institute (NIH/NCI)United StatesCA136472
National Institutes of Health/National Cancer Institute (NIH/NCI)United States1ZIABC011627

Revision History  (Full details and data files)

  • Version 1.0: 2016-03-02
    Type: Initial release
  • Version 1.1: 2016-03-30
    Changes: Database references
  • Version 1.2: 2016-04-27
    Changes: Database references
  • Version 1.3: 2021-10-13
    Changes: Data collection, Database references
  • Version 2.0: 2021-11-03
    Type: Coordinate replacement
    Reason: Atoms with unrealistic or zero occupancies
    Changes: Advisory, Atomic model, Author supporting evidence, Data collection, Database references, Derived calculations, Experimental preparation, Other, Refinement description, Source and taxonomy, Structure summary
  • Version 2.1: 2024-05-15
    Changes: Data collection, Database references