1DXZ

M2 TRANSMEMBRANE SEGMENT OF ALPHA-SUBUNIT OF NICOTINIC ACETYLCHOLINE RECEPTOR FROM TORPEDO CALIFORNICA, NMR, 20 STRUCTURES

• PDB DOI: https://doi.org/10.2210/pdb1DXZ/pdb

• Classification: TRANSMEMBRANE PROTEIN
• Organism(s): Tetronarce californica
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTMMemProtMD


• Deposited: 2000-01-20 Released: 2000-02-02 
• Deposition Author(s): Pashkov, V.S., Maslennikov, I.V., Tchikin, L.D., Efremov, R.G., Ivanov, V.T., Arseniev, A.S.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 300 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINTS VIOLATION 

Literature

Spatial Structure of the M2 Transmembrane Segment of the Nicotinic Acetylcholine Receptor Alpha-Subunit

Pashkov, V.S., Maslennikov, I.V., Tchikin, L.D., Efremov, R.G., Ivanov, V.T., Arseniev, A.S.

(1999) FEBS Lett 457: 117

• PubMed: 10486576 
• DOI: https://doi.org/10.1016/s0014-5793(99)01023-6
• Primary Citation of Related Structures:  
  1DXZ


• PubMed Abstract: 
  

  A synthetic peptide corresponding to the transmembrane segment M2 (residues 236-267) of the alpha-subunit of the nicotinic acetylcholine receptor from Torpedo californica has been studied by two dimensional 1H-NMR spectroscopy in a chloroform-methanol (1:1) mixture containing 0.1 M LiClO4. Reconstruction of the spatial structure of M2 from the NMR data resulted in an alpha-helix formed by residues 241-263. Distribution of the molecular hydrophobicity potential on the helix surface is very similar to that in five-helix bundles of proteins with a known three dimensional structure: two hydrophilic bands located on the opposite helix sides separated by strong hydrophobic zones.

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Organizational Affiliation: 

Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 3.42 kDa 
• Atom Count: 239 
• Modelled Residue Count: 33 
• Deposited Residue Count: 33 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ACETYLCHOLINE RECEPTOR PROTEIN, ALPHA CHAIN	A	33	Tetronarce californica	Mutation(s): 0  Membrane Entity: Yes
UniProt
Find proteins for P02710 (Tetronarce californica) Explore P02710  Go to UniProtKB:  P02710

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 300 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINTS VIOLATION 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-02-02 
Deposition Author(s): Pashkov, V.S., Maslennikov, I.V., Tchikin, L.D., Efremov, R.G., Ivanov, V.T., Arseniev, A.S.

Revision History  

• Version 1.0: 2000-02-02
  Type: Initial release
  
• Version 1.1: 2011-05-07
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance