1JDM

NMR Structure of Sarcolipin


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 16 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and orientation of sarcolipin in lipid environments.

Mascioni, A.Karim, C.Barany, G.Thomas, D.D.Veglia, G.

(2002) Biochemistry 41: 475-482


  • PubMed Abstract: 
  • Sarcolipin (SLN) is a 31 amino acid integral membrane protein that regulates Ca-ATPase activity in skeletal muscle. Here, we report the three-dimensional structure and topology of synthetic SLN in lipid environments, as determined by solution and sol ...

    Sarcolipin (SLN) is a 31 amino acid integral membrane protein that regulates Ca-ATPase activity in skeletal muscle. Here, we report the three-dimensional structure and topology of synthetic SLN in lipid environments, as determined by solution and solid-state NMR spectroscopy. 2D solution NMR experiments were performed on SLN solubilized in sodium dodecyl sulfate (SDS) micelles. We found that SLN adopts a highly defined alpha-helical conformation from F9 through R27, with a backbone RMSD of 0.65 A and a side chain RMSD of 1.66 A. The N-terminus (M1 through L8) and the C-terminus (S28 through Y31) are mostly unstructured. The orientation of the SLN was determined using one-dimensional (15)N NMR solid-state spectroscopy. The protein was incorporated into phospholipid bilayers prepared from a mixture of 1,2-dioleoyl-sn-glycero-3-phosphocholine and 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine. The (15)N chemical shift solid-state spectra from selectively labeled SLN samples indicate that SLN orients perpendicularly to the plane of the membrane bilayers. These results support the proposed mechanism of Ca-ATPase regulation of SLN via protein-protein intramembranous interactions between the highly conserved transmembrane domains of the Ca-ATPase and the conserved transmembrane domain of SLN.


    Organizational Affiliation

    Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Sarcolipin
A
31Homo sapiensMutation(s): 0 
Gene Names: SLN
Find proteins for O00631 (Homo sapiens)
Go to Gene View: SLN
Go to UniProtKB:  O00631
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 16 
  • Selection Criteria: structures with the least restraint violations 
  • Olderado: 1JDM Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-02-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance