Research data to: The rigid core and flexible surface of amyloid fibrils probed by magic-angle-spinning NMR spectroscopy of aromatic residues

Becker LM, Schanda P. 2023. Research data to: The rigid core and flexible surface of amyloid fibrils probed by magic-angle-spinning NMR spectroscopy of aromatic residues, Institute of Science and Technology Austria, 10.15479/AT:ISTA:12497.

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Corresponding author has ISTA affiliation

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Abstract
Aromatic side chains are important reporters of the plasticity of proteins, and often form important contacts in protein–protein interactions. We studied aromatic residues in the two structurally homologous cross-β amyloid fibrils HET-s, and HELLF by employing a specific isotope-labeling approach and magic-angle-spinning NMR. The dynamic behavior of the aromatic residues Phe and Tyr indicates that the hydrophobic amyloid core is rigid, without any sign of "breathing motions" over hundreds of milliseconds at least. Aromatic residues exposed at the fibril surface have a rigid ring axis but undergo ring flips on a variety of time scales from nanoseconds to microseconds. Our approach provides direct insight into hydrophobic-core motions, enabling a better evaluation of the conformational heterogeneity generated from an NMR structural ensemble of such amyloid cross-β architecture.
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Date Published
2023-03-23
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Institute of Science and Technology Austria
IST-REx-ID

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Becker LM, Schanda P. Research data to: The rigid core and flexible surface of amyloid fibrils probed by magic-angle-spinning NMR spectroscopy of aromatic residues. 2023. doi:10.15479/AT:ISTA:12497
Becker, L. M., & Schanda, P. (2023). Research data to: The rigid core and flexible surface of amyloid fibrils probed by magic-angle-spinning NMR spectroscopy of aromatic residues. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:12497
Becker, Lea Marie, and Paul Schanda. “Research Data to: The Rigid Core and Flexible Surface of Amyloid Fibrils Probed by Magic-Angle-Spinning NMR Spectroscopy of Aromatic Residues.” Institute of Science and Technology Austria, 2023. https://doi.org/10.15479/AT:ISTA:12497.
L. M. Becker and P. Schanda, “Research data to: The rigid core and flexible surface of amyloid fibrils probed by magic-angle-spinning NMR spectroscopy of aromatic residues.” Institute of Science and Technology Austria, 2023.
Becker LM, Schanda P. 2023. Research data to: The rigid core and flexible surface of amyloid fibrils probed by magic-angle-spinning NMR spectroscopy of aromatic residues, Institute of Science and Technology Austria, 10.15479/AT:ISTA:12497.
Becker, Lea Marie, and Paul Schanda. Research Data to: The Rigid Core and Flexible Surface of Amyloid Fibrils Probed by Magic-Angle-Spinning NMR Spectroscopy of Aromatic Residues. Institute of Science and Technology Austria, 2023, doi:10.15479/AT:ISTA:12497.
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