Virtually-multiplexed transcript abundance data for each gene (in the form of molecules/106 β-actin molecules) from all experiments were included in the same Standardized Expression Database (SED). These data are now directly comparable to previously published virtually-multiplexed transcript abundance data from this laboratory [15], or to Virtually-multiplexed transcript abundance data collected by others who use the NCI-funded (R24 CA 95806) Standardized Expression Measurement (SEM) Center. The data presented here represent more than 6,000 Virtually-multiplexed transcript abundance measurements conducted in multiple experiments. The sixteen antioxidant or DNA repair genes and each of the six transcription factors except for E2F1 were measured in each NBEC sample from 49 individuals (24 non-BC individuals and 25 BC individuals).