Structure of A4M4C bound to (KR)4 Solution backbone structure refined by PCS - Cucuzza, S.; Sitnik, M.; Jurt, S.; Michel, E.; Dai, W.; Muentener, T.; Ernst, P.; Haeussinger, D.; Plueckthun, A.; Zerbe, O. (Biological Magnetic Resonance Bank, 2023)