Crystallographic Fragment Screening with CK2α', an Isoform of Human Protein Kinase CK2 Catalytic Subunit, and Its Use to Obtain a CK2α'/Heparin Complex Structure. - Werner, Christian; Barthel, Tatjana; Harasimowicz, Hugo; Marminon, Christelle; Weiss, Manfred S.; Borgne, Marc Le; Niefind, Karsten (Kinases & Phosphatases, 2026)