1AG7

CONOTOXIN GS, NMR, 20 STRUCTURES

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGIES AND LEAST NUMBER OF RESTRAINT VIOLATIONS 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history. 

Literature

Solution structure of the sodium channel antagonist conotoxin GS: a new molecular caliper for probing sodium channel geometry.

Hill, J.M., Alewood, P.F., Craik, D.J.

(1997) Structure 5: 571-583


  • PubMed Abstract: 

    • The venoms of Conus snails contain small, disulfide-rich inhibitors of voltage-dependent sodium channels. Conotoxin GS is a 34-residue polypeptide isolated from Conus geographus that interacts with the extracellular entrance of skeletal muscle sodium ...

    The venoms of Conus snails contain small, disulfide-rich inhibitors of voltage-dependent sodium channels. Conotoxin GS is a 34-residue polypeptide isolated from Conus geographus that interacts with the extracellular entrance of skeletal muscle sodium channels to prevent sodium ion conduction. Although conotoxin GS binds competitively with mu conotoxin GIIIA to the sodium channel surface, the two toxin types have little sequence identity with one another, and conotoxin GS has a four-loop structural framework rather than the characteristic three-loop mu-conotoxin framework. The structural study of conotoxin GS will form the basis for establishing a structure-activity relationship and understanding its interaction with the pore region of sodium channels.

    Related Citations: 
    • A Novel Sodium Channel Inhibitor from Conus Geographus: Purification, Structure, and Pharmacological Properties
      Yanagawa, Y.,Abe, T.,Satake, M.,Odani, S.,Suzuki, J.,Ishikawa, K.
      (1988) Biochemistry 27: 6256

    Organizational Affiliation: 

    Centre for Drug Design and Development The University of Queensland, Brisbane, Queensland, 4072, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CONOTOXIN GS
A
34Conus geographusMutation(s): 0 
Find proteins for P15472 (Conus geographus)
Go to UniProtKB:  P15472
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
HYP
Query on HYP
A
L-PEPTIDE LINKINGC5 H9 N O3PRO
CGU
Query on CGU
A
L-PEPTIDE LINKINGC6 H9 N O6GLU
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 20 
  • Selection Criteria: LOWEST ENERGIES AND LEAST NUMBER OF RESTRAINT VIOLATIONS 
  • Olderado: 1AG7 Olderado
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-04-08
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance