Figure 2.

Protein–DNA, protein–RNA and protein–ligand interactions monitored with the use of the universal protein array. Autoradiographic signals detected from the same array which was repeatedly stripped and incubated with the ³²P-labeled dsDNA probe (A), the ssDNA probe (B), the RNA probe (C) and the ¹²⁵I-labeled ligand T3 (D) after the array was washed with 500 mM KCl.