Fig.3 Fibers grown from green-Sup35NM in the presence of preformed red-Sup35NM fibers. Integrated fluorescent images of the Sup35NM fibers. TMR-labeled (red) Sup35NM (30 μmol/l) in 8 mol/l guanidine HCl was diluted 200-fold into Buffer A. After incubation for 10 h, 30 μmol/l of OG-labeled (green) Sup35NM in 6 mol/l guanidine HCl was diluted 200-fold into the reaction mixture and incubated for another 10 h. Red and green images

were recorded separately,and the colored images were subsequently merged.