2H95

Structure of the Amantadine-Blocked Influenza A M2 Proton Channel Trans-membrane Domain by Solid-state NMR spectroscopy


Experimental Data Snapshot

  • Method: SOLID-STATE NMR
  • Conformers Calculated: 72 
  • Conformers Submitted: 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history

Re-refinement Note

A newer entry is available that reflects an alternative modeling of the original data: 2KQT


Literature

Backbone structure of the amantadine-blocked trans-membrane domain m2 proton channel from influenza a virus.

Hu, J.Asbury, T.Achuthan, S.Li, C.Bertram, R.Quine, J.R.Fu, R.Cross, T.A.

(2007) Biophys J 92: 4335-4343

  • DOI: 10.1529/biophysj.106.090183
  • Primary Citation of Related Structures:  
    2H95

  • PubMed Abstract: 
  • Amantadine is known to block the M2 proton channel of the Influenza A virus. Here, we present a structure of the M2 trans-membrane domain blocked with amantadine, built using orientational constraints obtained from solid-state NMR polarization-inversion-spin-exchange-at-the-magic-angle experiments ...

    Amantadine is known to block the M2 proton channel of the Influenza A virus. Here, we present a structure of the M2 trans-membrane domain blocked with amantadine, built using orientational constraints obtained from solid-state NMR polarization-inversion-spin-exchange-at-the-magic-angle experiments. The data indicates a kink in the monomer between two helical fragments having 20 degrees and 31 degrees tilt angles with respect to the membrane normal. This monomer structure is then used to construct a plausible model of the tetrameric amantadine-blocked M2 trans-membrane channel. The influence of amantadine binding through comparative cross polarization magic-angle spinning spectra was also observed. In addition, spectra are shown of the amantadine-resistant mutant, S31N, in the presence and absence of amantadine.


    Organizational Affiliation

    The National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA.



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Matrix protein 2 ABCD18N/AMutation(s): 0 
Find proteins for Q3LZC0 (Influenza A virus)
Explore Q3LZC0 
Go to UniProtKB:  Q3LZC0
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLID-STATE NMR
  • Conformers Calculated: 72 
  • Conformers Submitted: 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 2H95 Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-04-24
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance