2LPF

R state structure of monomeric phospholamban (C36A, C41F, C46A)


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 16000 
  • Conformers Submitted: 
  • Selection Criteria: median structure 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structures of the Excited States of Phospholamban and Shifts in Their Populations upon Phosphorylation.

De Simone, A.Gustavsson, M.Montalvao, R.W.Shi, L.Veglia, G.Vendruscolo, M.

(2013) Biochemistry 52: 6684-6694

  • DOI: 10.1021/bi400517b

  • PubMed Abstract: 
  • Phospholamban is an integral membrane protein that controls the calcium balance in cardiac muscle cells. As the function and regulation of this protein require the active involvement of low populated states in equilibrium with the native state, it is ...

    Phospholamban is an integral membrane protein that controls the calcium balance in cardiac muscle cells. As the function and regulation of this protein require the active involvement of low populated states in equilibrium with the native state, it is of great interest to acquire structural information about them. In this work, we calculate the conformations and populations of the ground state and the three main excited states of phospholamban by incorporating nuclear magnetic resonance residual dipolar couplings as replica-averaged structural restraints in molecular dynamics simulations. We then provide a description of the manner in which phosphorylation at Ser16 modulates the activity of the protein by increasing the sizes of the populations of its excited states. These results demonstrate that the approach that we describe provides a detailed characterization of the different states of phospholamban that determine the function and regulation of this membrane protein. We anticipate that the knowledge of conformational ensembles enable the design of new dominant negative mutants of phospholamban by modulating the relative populations of its conformational substates.


    Organizational Affiliation

    Division of Molecular Biosciences, Imperial College London , London SW7 2AZ, U.K.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cardiac phospholamban
A
53Oryctolagus cuniculusMutation(s): 3 
Gene Names: PLN
Find proteins for P61015 (Oryctolagus cuniculus)
Go to Gene View: PLN
Go to UniProtKB:  P61015
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 16000 
  • Conformers Submitted: 
  • Selection Criteria: median structure 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-02-13
    Type: Initial release
  • Version 1.1: 2013-09-11
    Type: Database references
  • Version 1.2: 2013-10-09
    Type: Database references