On the basis
of molecular modeling, acrifoline (4) is proposed to interact
with Glu203 and the conserved Lys188 through hydrogen
bonds involving the C-6 hydroxy group and with the hinge
region (backbone atoms of Glu239 and Leu241) through
hydrogen bonds involving the C-1 hydroxy group.
’s of 0.075,
5.7, and 2.2 μM, respectively. Their selectivity profile was
evaluated against a panel of various kinases, and molecular
docking calculations provided structural details for the
interaction between these compounds and DYRK1A