Stimulation of binding of L-731,988 to FLAG-integrase by HIV-1 donor
DNA. (A) FLAG-integrase associated with SPA beads was
incubated with labeled L-731,988 titrated in the absence
(●) or presence (■) of 100 nM U5 DNA.
(B) FLAG-integrase associated with SPA beads was
incubated with labeled L-731,988 (35 nM) and unlabeled L-731,988
titrated in the absence (●) or presence
(■) of 100 nM U5 DNA. FLAG-Asp116Ala associated with SPA
beads was incubated with labeled L-731,988 and a titration of unlabeled
L-731,988 in the presence of 100 nM U5 DNA (×).
(C) FLAG-integrase associated with SPA beads was
incubated with L-731,988 with a titration of U5 viral ends
(■, n = 7), a nonspecific DNA containing
a 2-bp 3′ overhang (×, n = 4), or a
disintegration dumbbell (●, n = 2).
Averaged results of multiple experiments are shown and the standard
error is indicated.