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Jayawickrama D, Zink S, Velde DV, et al. Conformational Analysis of the β-amyloid Peptide Fragment, β(12-28). J Biomol Struct Dyn. 1995;13(2):229-244doi: 10.1080/07391102.1995.10508836.
Jayawickrama, D., Zink, S., Velde, D. V., Effiong, R. I., & Larive, C. K. (1995). Conformational Analysis of the β-amyloid Peptide Fragment, β(12-28). Journal of biomolecular structure & dynamics, 13(2), 229-244. https://doi.org/10.1080/07391102.1995.10508836
Jayawickrama, Dimuthu, et al. "Conformational Analysis of the β-amyloid Peptide Fragment, β(12-28)." Journal of biomolecular structure & dynamics vol. 13,2 (1995): 229-244. doi: https://doi.org/10.1080/07391102.1995.10508836
Jayawickrama D, Zink S, Velde DV, Effiong RI, Larive CK. Conformational Analysis of the β-amyloid Peptide Fragment, β(12-28). J Biomol Struct Dyn. 1995 Oct;13(2):229-244. doi: 10.1080/07391102.1995.10508836. PMID: 22616728.
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J Biomol Struct Dyn. 1995 Oct;13(2):229-244. doi: 10.1080/07391102.1995.10508836.

Conformational Analysis of the β-amyloid Peptide Fragment, β(12-28).

Journal of biomolecular structure & dynamics

Dimuthu Jayawickrama, Shana Zink, David Vander Velde, Rosemary I Effiong, Cynthia K Larive

Affiliations

  1. a Department of Chemistry , University of Kansas , Lawrence , KS , 66045.

PMID: 22616728 DOI: 10.1080/07391102.1995.10508836

Abstract

Abstract NMR and CD spectroscopy have been used to examine the conformation of the peptide, β(12-28), (VHHQKLVFFAEDVGSNK) in aqueous and 60% TFE/40% H(2)0 solution at pH 2.4. In 60% TFE solution, the peptide is helical as confirmed by the CD spectrum and by the pattern of the NOE cross peaks detected in the NOESY spectrum of the peptide. In aqueous solution, the peptide adopts a more extended and flexible conformation. Broadening of resonances at low temperature, temperature-dependent changes in the chemical shifts of several of the CH(α) resonances and the observation of a number of NOE contacts between the hydrophobic side-chain protons of the peptide are indicative of aggregation in aqueous solution. The behavior of β(12-28) in 60% TFE and in aqueous solution are consistent with the overall conformation and aggregation behavior reported for the larger peptide fragment, β(1-28) and the parent β-amyloid peptide.

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