Figure 2. Differential expression between PDLF and GF of the 9018 unique human cDNAs represented in the microarray. mRNA from PDLF was labeled with Cy5; mRNA from GF was labeled with Cy3. Forward gridlines indicate expression ratios between the two probes. Each dot represents a gene. Genes differentially expressed by at least three-fold were indicated as those above or below red dashed lines.