Conformation of Thymosin Beta9 in Water/Fluoroalcohol Solution Determined by NMR Spectroscopy
Stoll, R., Voelter, W., Holak, T.A.(1997) Biopolymers 41: 623
- PubMed: 9108730
- DOI: https://doi.org/10.1002/(SICI)1097-0282(199705)41:6<623::AID-BIP3>3.0.CO;2-S
- Primary Citation of Related Structures:
1HJ0 - PubMed Abstract:
The conformation of thymosin beta 9 in solution of 40% (v/v) 1,1,1,3,3,3-hexafluoro-2-propanol-d2 in water has been investigated by two-dimensional 1H-nmr spectroscopy. Under this condition thymosin beta 9 adopts an ordered structure. The determination of the conformation of the peptide was based on a set of 304 approximate interproton distance constraints derived from nuclear Overhauser enhancement measurements. The conformation of thymosin beta 9 includes two helical regions from residues 4 to 27 and 32 to 41. The two helices are separated by a poorly defined loop region between amino acids 28 and 31; the N-terminus of thymosin beta 9 shows random-coil structure only.
Organizational Affiliation:
Abteilung für Physikalische Biochemie des Physiologisch-chemischen Institutes der Universität Tübingen, FRG.