Two-dimensional NMR studies on des-pentapeptide-insulin. Proton resonance assignments and secondary structure analysis

R Boelens, M L Ganadu, P Verheyden, R Kaptein

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The shortened analogue of insulin, des-(B26-B30)-pentapeptide insulin, has been characterized by two-dimensional 1H NMR. The 1H resonance assignments and the secondary structure in water solution are discussed The results indicate that the secondary structure in solution is very similar to that reported for the crystalline state. A high flexibility of both A and B chains is observed. Of the two conformations seen in the 2-Zn insulin crystals and indicated as molecules 1 and 2 (Chinese nomenclature), the structure of the analogue is more similar to that of molecule 1.

Original languageEnglish
Pages (from-to)147-53
Number of pages7
JournalEuropean Journal of Biochemistry
Volume191
Issue number1
Publication statusPublished - 20 Jul 1990

Keywords

  • Amino Acid Sequence
  • Amino Acids
  • Insulin
  • Magnetic Resonance Spectroscopy
  • Molecular Sequence Data
  • Protein Conformation
  • Water

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