Figure 4
Two-color fluorescence imaging. (a) Protein crystals of ConA labeled with the fluorescent probes CR and PB under white light. (b) Image of the well shown in (a) under the light of a 532 nm green laser diode using a 550 nm high-pass emission filter. (c) Image of the well shown in (a) illuminated with a 400 nm blue LED with no emission filter. |