Control with 10 nM ATTO655-HI + 10 nM unlabelled HI 93 mikroM ATTO655 HI stock 100 mikroM HI stock 40 mikroL 100 nM ATTO655 HI 40 mikroL 100 nM HI 320 mikroL buffer = 400 mikroL total volume 10 % lp, 50 ms exposure + 100 ms wt, 4000 frames 350 mikroL is flushed in to each chamber Exp2: chamber 1 Exp 3: chamber 2 Exp 4: chamber 3 Exp 6; chamber 5