Structural Heterogeneity of Proteoform-Ligand Complexes in Adenosine Monophosphate-Activated Protein Kinase Uncovered by Integrated Top-Down Mass Spectrometry - Hsin-Ju Chan; Boris Krichel; Liam J. Bandura; Emily A. Chapman; Holden T. Rogers; Matthew S. Fischer; David S. Roberts; Zhan Gao; Man-Di Wang; Jingshing Wu; Charlotte Uetrecht; Song Jin; et al. (Journal of the American Chemical Society, 2025)