1HPN

N.M.R. AND MOLECULAR-MODELLING STUDIES OF THE SOLUTION CONFORMATION OF HEPARIN

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 2 

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Literature

N.m.r. and molecular-modelling studies of the solution conformation of heparin.

Mulloy, B., Forster, M.J., Jones, C., Davies, D.B.

(1993) Biochem J 293: 849-858

  • DOI: 10.1042/bj2930849
  • Primary Citation of Related Structures:  
    1HPN

  • PubMed Abstract: 

    • The solution conformations of heparin and de-N-sulphated, re-N-acetylated heparin have been determined by a combination of n.m.r. spectroscopic and molecular-modelling techniques. The 1H- and 13C-n.m.r. spectra of these polysaccharides have been assigned ...

    The solution conformations of heparin and de-N-sulphated, re-N-acetylated heparin have been determined by a combination of n.m.r. spectroscopic and molecular-modelling techniques. The 1H- and 13C-n.m.r. spectra of these polysaccharides have been assigned. Observed 1H-1H nuclear Overhauser enhancements (n.O.e.s) have been simulated using the program NOEMOL [Forster, Jones and Mulloy (1989) J. Mol. Graph. 7, 196-201] for molecular models derived from conformational-energy calculations; correlation times for the simulations were chosen to fit experimentally determined 13C spin-lattice relaxation times. In order to achieve good agreement between calculated and observed 1H-1H n.O.e.s it was necessary to assume that the reorientational motion of the polysaccharide molecules was not isotropic, but was that of a symmetric top. The resulting model of heparin in solution is similar to that determined in the fibrous state by X-ray-diffraction techniques [Nieduszynski, Gardner and Atkins (1977) Am. Chem. Soc. Symp. Ser. 48, 73-80].

    Related Citations: 
    • The Effect of Variation of Substitution on the Solution Conformation of Heparin: A Spectroscopic and Molecular Modelling Study
      Mulloy, B., Forster, M.J., Jones, C., Drake, A.F., Johnson, E.A., Davies, D.B.
      (1994) Carbohydr Res 255: 1
    • Noemol: Integrated Molecular Graphics and the Simulation of Nuclear Overhauser Effects in NMR Spectroscopy
      Forster, M.J., Jones, C., Mulloy, B.
      (1989) J Mol Graph 7: 196
    Organizational Affiliation: 

    National Institute for Biological Standards and Control, South Mimms, Potters Bar, Herts, U.K.



Oligosaccharides

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Entity ID: 1
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose-(1-4)-2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose
A
12 N/A Oligosaccharides Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 2 
  • OLDERADO: 1HPN Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-03-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Other, Structure summary