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 30202

Title: Alpha Helix Nucleation by a Simple Cyclic Tetrapeptide

Deposition date: 2016-11-13 Original release date: 2016-12-09

Authors: Hoang, H.; Fairlie, D.

Citation: Hoang, H.; Fairlie, D.. "Alpha Helix Nucleation by a Simple Cyclic Tetrapeptide"  .

Assembly members:
entity_1, polymer, 5 residues, 458.513 Da.

Natural source:   Common Name: Greater dwarf lemur   Taxonomy ID: 47177   Superkingdom: Eukaryota   Kingdom: Metazoa   Genus/species: Cheirogaleus major

Experimental source:   Production method: chemical synthesis

Entity Sequences (FASTA):
entity_1: ARAXX

Data sets:
Data typeCount
1H chemical shifts8
coupling constants4

Additional metadata:

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


Entity 1, entity_1 5 residues - 458.513 Da.



sample_1: peptide 1 ± 0.1 mM

sample_conditions_1: ionic strength: 100 mM; pH: 6; pressure: 1 atm; temperature: 298 K


NameSampleSample stateSample conditions
2D 1H-1H ROESYsample_1anisotropicsample_conditions_1


TOPSPIN, Bruker Biospin - chemical shift assignment, peak picking

Xplor, Xplor-NIH - refinement

NMR spectrometers:

  • Bruker AvanceIII 600 MHz