Journal
EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS
Volume 42, Issue 11-12, Pages 803-810Publisher
SPRINGER
DOI: 10.1007/s00249-013-0928-7
Keywords
NMR; Residual dipolar coupling (RDC); Two-dimensional NMR spectroscopy (TOCSY; HSQC-HECADE; NOESY); Alzheimer's disease; beta-Amyloid; Oligopeptides
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Funding
- Ministry of Education and Science of the Republic of Tatarstan [13-03-97041]
- Ministry of Education and Science of the Russian Federation (KFU) [2.2792.2011]
- Foundation in memory of J.C. and Seth M. Kempe
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The spatial structure of Alzheimer's amyloid A beta(10-35)-NH2 peptide in aqueous solution at pH 7.3 and in SDS micelles was investigated by use of a combination of the residual dipolar coupling method and two-dimensional NMR spectroscopy (TOCSY, NOESY). At pH 7.3 A beta(10-35)-NH2 adopts a compact random-coil conformation whereas in SDS micellar solutions two helical regions (residues 13-23 and 30-35) of A beta(10-35)-NH2 were observed. By use of experimental data, the structure of peptide-micelle complex was determined; it was found that A beta(10-35)-NH2 peptide binds to the micelle surface at two regions (residues 17-20 and 29-35).
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