Fig. 2: Chemical shift perturbations comparing α-synuclein fibrils grown in the presence and absence of anle138b.
From: The clinical drug candidate anle138b binds in a cavity of lipidic α-synuclein fibrils
a Excerpts of carbon-nitrogen projections of 3D (H)CANH spectra of lipidic α-synuclein fibrils. Signal attenuation (Ibound/Ifree) and chemical shift perturbation (CSP) are observed comparing spectra of fibrils with anle138b (green, 800 MHz with 55 kHz MAS) and without anle138b (gray, 950 MHz with 100 kHz MAS). b Relative peak intensities from 3D (H)CANH spectra and c, average CSP from DARR and (H)CANH spectra induced by anle138b inside α-synuclein fibrils plotted per residue. Black dotted line represents a 2-residue moving average; highlighted areas indicate the cavity in protofilament L2. d Excerpts of 2D 13C,13C correlation spectra (20 ms DARR mixing) of α-synuclein fibrils with (red) and without (gray) anle138b acquired at 850 MHz with 17 kHz MAS. e Residues enclosing the cavity in α-synuclein protofilament L2 color-coded by nuclei experiencing significant CSP (blue), signal attenuation (green), or both (copper). Source data are provided as a Source Data file.
