Plant expression database is a publicly accessible co-expressed gene sets database will be a powerful resource for a broad spectrum of experimental projects, including targeting genes for functional detection or regulatory work e.g, SoyNet database(Kim, Hwang et al. 2017), BarleyBase(Shen, Gong et al. 2005) . Here we report the construction of the Arabidopsis thaliana trans-factor and cis-element prediction database (ATTED-II) that provides co-regulated, co-expressed gene relationships, On co-expressed genes resulting from microarray data and the cis elements expected(Obayashi, Aoki et al. 2018).