2N12

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


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation 3D Report Full Report


This is version 1.2 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: 10.1038/nsmb.3187

  • 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 ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Unconventional myosin-VI
A
82Homo sapiensGene Names: MYO6 (KIAA0389)
Find proteins for Q9UM54 (Homo sapiens)
Go to Gene View: MYO6
Go to UniProtKB:  Q9UM54
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2015-03-20 
  • Released Date: 2016-03-02 
  • Deposition Author(s): He, F., Walters, K.

Revision History 

  • Version 1.0: 2016-03-02
    Type: Initial release
  • Version 1.1: 2016-03-30
    Type: Database references
  • Version 1.2: 2016-04-27
    Type: Database references