All diffraction data were indexed and integrated using MOSFLM (Leslie and Powell, 2007 ) and scaled using SCALA (Evans, 2006 (link)). All models were refined with REFMAC5 (Murshudov et al., 2011 (link)).
The DYRK1A structure was solved by molecular replacement using Phaser (McCoy et al., 2007 (link)) and a search ensemble of the coordinates from two CLK kinases (PDB ID codes2EXE and 1Z57 ). Four molecules were present in the asymmetric unit and, after NCS averaging and density modification in dm (Cowtan, 1994 ), the resulting phases could be utilized in ARP/wARP (Langer et al., 2008 (link)) to autobuild the main parts of one of the molecules in the asymmetric unit. After further model building in Coot (Emsley et al., 2010 (link)), this molecule was used to generate the other three molecules for restrained refinement with tight NCS restraints. Rebuilding and refinement (including TLS parameters) resulted in the final model.
The DYRK1A peptide complex and the DYRK2 structure were both solved by molecular replacement using Phaser, with the structure of the inhibitor-bound DYRK1A as a search molecule.
The DYRK1A structure was solved by molecular replacement using Phaser (McCoy et al., 2007 (link)) and a search ensemble of the coordinates from two CLK kinases (PDB ID codes
The DYRK1A peptide complex and the DYRK2 structure were both solved by molecular replacement using Phaser, with the structure of the inhibitor-bound DYRK1A as a search molecule.
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