Mapping sites on Cdk2 bound by the original aptamers and by aptamer
10M. We collected the Cdk2 mutant bait proteins, described elsewhere
(3), Cdk3, and Drosophila Cdc2 and Cdc2c (16). In this
experiment, we expressed TrxA, the 14 different aptamers originally
selected (1), and aptamer 10M as preys. We mated yeast to generate an
interaction matrix (16).