Hybridization intensity ranking.

(A) Image of a laser-scanned microarray hybridized with 50 μg Cy3-labeled NBM total RNA and 50 μg Cy5-labeled K562 erythroleukemia cell (K562) total RNA. (B) Cy3-labeled NBM signal intensity ranking. (C) Cy5-labeled K562 erythroleukemia cell signal intensity ranking. The horizontal bars at (B) 1544 and (C) 1491 fluorescent units denote the level above which signal intensity could be reliably detected above that of the negative controls.