INTRARED is a data platform for promoting the understanding of the transcriptional regulations. The platform integrates the data of cis-regulatory elements (CRE), trans-factors, and epigenomes. The data platform consists of two databases. fanta.bio is a database of CREs, which are genomic regions contributing to the regulation of gene and transcript expressions in the same chromosomes, with their locations and activities in various cell types and states. ChIP-Atlas is a database of trans-factors that bind to CREs and epigenomes that affects to CREs and trans-factors. In the data platform, developing and operating teams in both databases cooperate and build datasets of transcriptional regulations and develop interfaces to provide them.