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CLSM images for CBD-SpaA-H6 immobilized on Avicel. Purified CBD-SpaA protein was bound to Avicel and incubated with anti-histidine antibody followed by goat anti-mouse IgG-FITC. The confocal microscope image indicates that CBD-SpaA protein had a high binding affinity to Avicel. (a) Differential interference contrast images; (b) FITC fluorescence; (c) merging of the two split images.
