1RON

NMR SOLUTION STRUCTURE OF HUMAN NEUROPEPTIDE Y


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 26 
  • Conformers Submitted: 26 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Solution structure of human neuropeptide Y.

Monks, S.A.Karagianis, G.Howlett, G.J.Norton, R.S.

(1996) J.Biomol.NMR 8: 379-390


  • PubMed Abstract: 
  • The three-dimensional structure of synthetic human neuropeptide Y in aqueous solution at pH 3.2 and 37 degrees C was determined from two-dimensional 1H NMR data recorded at 600 MHz. A restraint set consisting of 440 interproton distance restraints in ...

    The three-dimensional structure of synthetic human neuropeptide Y in aqueous solution at pH 3.2 and 37 degrees C was determined from two-dimensional 1H NMR data recorded at 600 MHz. A restraint set consisting of 440 interproton distance restraints inferred from NOEs and 11 backbone and 4 side-chain dihedral angle restraints derived from spin-spin coupling constants was used as input for distance geometry calculations on DIANA and simulated annealing and restrained energy minimization in X-PLOR. The final set of 26 structures is well defined in the region of residues 11-36, with a mean pairwise rmsd of 0.51 A for the backbone heavy atoms (N, C alpha and C) and 1.34 A for all heavy atoms. Residues 13-36 form an amphipathic alpha-helix. The N-terminal 10 residues are poorly defined relative to the helical region, although some elements of local structure are apparent. At least one of the three prolines in the N-terminal region co-exists in both cis and trans conformations. An additional set of 24 distances was interpreted as intermolecular distances within a dimer. A combination of distance geometry and restrained simulated annealing yielded a model of the dimer having antiparallel packing of two helical units, whose hydrophobic faces form a well-defined core. Sedimentation equilibrium experiments confirm the observation that neuropeptide Y associates to form dimers and higher aggregates under the conditions of the NMR experiments. Our results therefore support the structural features reported for porcine neuropeptide Y [Cowley, D.J. et al. (1992) Eur. J. Biochem., 205, 1099-1106] rather than the 'aPP' fold described previously for human neuropeptide Y [Darbon, H. et al. (1992) Eur. J. Biochem., 209, 765-771].


    Related Citations: 
    • Solution Structure of Shk Toxin, a Novel Potassium Channel Inhibitor from a Sea Anemone
      Grimes, J.E.,Pallaghy, P.K.,Pennington, M.W.,Norton, R.S.
      () TO BE PUBLISHED --: --


    Organizational Affiliation

    Biomolecular Research Institute, Parkville, VIC, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NEUROPEPTIDE Y
A
37Homo sapiensMutation(s): 0 
Gene Names: NPY
Find proteins for P01303 (Homo sapiens)
Go to Gene View: NPY
Go to UniProtKB:  P01303
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
NH2
Query on NH2
A
NON-POLYMERH2 N

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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 26 
  • Conformers Submitted: 26 
  • Olderado: 1RON Olderado
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-08-17
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2016-05-25
    Type: Source and taxonomy
  • Version 1.4: 2017-11-29
    Type: Derived calculations, Other