(A) Single molecule traces of biotin-tethered nucleosomes, displaying initial repositioning (decrease in FRET) followed by repetitive increases in FRET, signifying sliding in the opposite direction.
(B) Schematic of surface-immobilized Chd1 and FRET-labeled nucleosome applied to single molecule platform.
(C) FRET histograms of non-biotinylated nucleosomes with surface-immobilized Chd1 before and after ATP addition.
(D) Single molecule traces of FRET labeled nucleosomes bound to surface-immobilized Chd1 before (top) and after (middle, bottom) ATP addition.