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Intrinsic Amyloidogenic Behavior of Terminally Protected Alzheimer’s Aβ17–21 Peptide: Self-Aggregation and Amyloid-Like Fibril Formation

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International Journal of Peptide Research and Therapeutics Aims and scope Submit manuscript

The terminally protected peptide Boc-Leu-Val-Phe-Phe-Ala-OMe bearing sequence similarity with the central hydrophobic cluster (CHC) of Alzheimer’s Aβ17–21 peptide self-assembles to produce amyloid-like straight unbranched fibrils from organic solvents. The fibrils readily bind with a physiological dye Congo red (CR) and exhibits green gold birefringence under polarized light, a characteristic feature of amyloid plaque obtained from many neurodegenerative diseases. FTIR spectroscopy and in silico energy minimization study shed some light on the antiparallel supramolecular β-sheet aggregation of the peptide.

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Acknowledgments

Arindam Banerjee thanks Department of Science and Technology, New Delhi, India for financial assistance [Grant No. SR/S5/OC-29/2003]. We thank the anonymous referees for critical comments that help to improve the work.

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Correspondence to Debasish Haldar.

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Haldar, D., Banerjee, A. Intrinsic Amyloidogenic Behavior of Terminally Protected Alzheimer’s Aβ17–21 Peptide: Self-Aggregation and Amyloid-Like Fibril Formation. Int J Pept Res Ther 13, 439–446 (2007). https://doi.org/10.1007/s10989-006-9072-x

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  • DOI: https://doi.org/10.1007/s10989-006-9072-x

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