Biological Magnetic Resonance Data Bank

A Repository for Data from NMR Spectroscopy on Proteins, Peptides, Nucleic Acids, and other Biomolecules
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BMRB Entry 21006

Title: alpha-conotoxin ImI cystathionine 2-4   PubMed: 21899353

Authors: Dekan, Zoltan; Vetter, Irina; Daly, Norelle; Lewis, Richard; Alewood, Paul; Craik, David

Citation: Dekan, Zoltan; Vetter, Irina; Daly, Norelle; Craik, David; Lewis, Richard; Alewood, Paul. "Alpha-Conotoxin ImI Incorporating Stable Cystathionine Bridges Maintains Full Potency and Identical Three-Dimensional Structure"  J. Am. Chem. Soc. 133, 15866-15869 (2011).

Assembly members:
alpha_conotoxin_ImI_Cystathionine_2-4, polymer, 12 residues, Formula weight is not available

Natural source:   Common Name: not available   Taxonomy ID: not available   Superkingdom: not available   Kingdom: not available   Genus/species: not available not available

Experimental source:   Production method: recombinant technology

Entity Sequences (FASTA):
alpha_conotoxin_ImI_Cystathionine_2-4: GCXSDPRCAWRC

Data sets:
Data typeCount
1H chemical shifts65

Additional metadata:

  • Assembly
  • Samples and Experiments
  • Software
  • Spectrometers
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Entity Assembly IDEntity NameEntity ID


Entity 1, alpha_conotoxin_ImI_Cystathionine_2-4 12 residues - Formula weight is not available




sample_1: alpha conotoxin ImI Cystathionine 2-4 1 mM; H2O 90%; D2O 10%

sample_conditions_1: temperature: 280 K; pH: 3


NameSampleSample stateSample conditions
2D 1H-1H TOCSYsample_1isotropicsample_conditions_1
2D DQF-COSYsample_1isotropicsample_conditions_1
2D 1H-1H NOESYsample_1isotropicsample_conditions_1


TOPSPIN, Bruker Biospin - collection

SPARKY, Goddard - chemical shift assignment

CYANA, Guntert, Mumenthaler and Wuthrich - structure solution

CNSSOLVE, Brunger, Adams, Clore, Gros, Nilges and Read - structure solution

NMR spectrometers:

  • Bruker Avance 600 MHz

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