Construction of the cis MEP database. cis MEP gathered the computationally identified CRMs and collected the literature-curated TFBS location data and nine genres of epigenetic data. (a) We have performed different CRM prediction algorithms and gathered these identified potential CRMs for comparative cross-referencing. (b) The genomic epigenetic marks are mapped to the locations of these potential CRMs for prediction confidence assessment and potential CRM function determination. We further retrieved the literature-curated CRMs to distinguish putative and known CRMs.