RnR is a database for over-expression experiments in Arabidopsis T87 cultured cells. In our project, we obtained and constructed approx. 2000 RAFL clones (by RIKEN) of the genes on which we focused. We selected approx. 185 constructs that we expected to relate to metabolism and utilized for analyses using DNA microarray (214 assays, 214 experiments), GC-MS (1118 assays, 222 experiments), UPLC-MS (1006 assays, 201 experiments), and CE-MS (990 assays, 196 experiments). The RnR database provides the results of such analyses for understanding the large-scale regulation relationships of gene expression and metabolite accumulation in plants.