Representative mouse Atlas cDNA expression array analysis. The cDNA hybridization patterns using the “plus” (TFF1−/−) and “minus” (TFF1+/+) total probes (A), or enriched probes (B) are shown. The numbers (1–22) located on the left of dots identify the position of the cDNAs up-regulated in the TFF1 null antropyloric tumors. *Background spot. Panels (white letters) and dot coordinates (numbers and small letters) are indicated.