1I5J

NMR STRUCTURE OF HUMAN APOLIPOPROTEIN C-II IN THE PRESENCE OF SDS


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 25 
  • Selection Criteria: Structures with favourable non-bond energy and minimal constraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

NMR structure of human apolipoprotein C-II in the presence of sodium dodecyl sulfate.

MacRaild, C.A.Hatters, D.M.Howlett, G.J.Gooley, P.R.

(2001) Biochemistry 40: 5414-5421


  • PubMed Abstract: 
  • The structure and protein-detergent interactions of apolipoprotein C-II (apoC-II) in the presence of SDS micelles have been investigated using circular dichroism and heteronuclear NMR techniques applied to (15)N-labeled protein. Micellar SDS, a commo ...

    The structure and protein-detergent interactions of apolipoprotein C-II (apoC-II) in the presence of SDS micelles have been investigated using circular dichroism and heteronuclear NMR techniques applied to (15)N-labeled protein. Micellar SDS, a commonly used mimetic of the lipoprotein surface, inhibits the aggregation of apoC-II and induces a stable structure containing approximately 60% alpha-helix as determined by circular dichroism. NMR reveals the first 12 residues of apoC-II to be structurally heterogeneous and largely disordered, with the rest of the protein forming a predominantly helical structure. Three regions of helical conformation, residues 16-36, 50-56, and 63-77, are well-defined by NMR-derived constraints, with the intervening regions showing more loosely defined helical conformation. The structure of apoC-II is compared to that determined for other apolipoproteins in a similar environment. Our results shed light on the lipid interactions of apoC-II and its mechanism of lipoprotein lipase activation.


    Organizational Affiliation

    Russell Grimwade School of Biochemistry and Molecular Biology, University of Melbourne, Gate 12, Royal Parade, Parkville, Victoria 3052, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
APOLIPOPROTEIN CII
A
79Homo sapiensMutation(s): 0 
Gene Names: APOC2 (APC2)
Find proteins for P02655 (Homo sapiens)
Go to Gene View: APOC2
Go to UniProtKB:  P02655
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 25 
  • Selection Criteria: Structures with favourable non-bond energy and minimal constraint violations 
  • Olderado: 1I5J Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-05-16
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance