Fig. 5.
Overall approach to using microarrays to study antibacterial resistance that is conferred by aminoglycoside modification. The image illustrates results of binding of array-immobilized substrates that have been modified by APH(3′)-IIIa to a mimic of the bacterial rRNA A-site. The plot below the array image illustrates the decrease in affinity of the arrayed aminoglycoside upon modification by APH(3′)-IIIa; the orange bar shows the decreased signal due to the modification of kanamaycin A by APH(3′)-IIIa.