The Rice Transporter Database was created to integrate and host functional genomic information for all putative rice transporters, as a part of Joint BioEnergy Institute (JBEI). The database contains information on 1754 putative rice transporters (gene models). These transporters were identified by Transporter Protein Analysis Database (TransportDB). Our goal is to integrate disparate data sets into a logical, user-friendly format. To accomplish this, we have developed a platform to display user-selected functional genomic data on a phylogenetic tree, including sequence information, mutant line information, expression data and so on. The database also includes an interactive chromosomal map showing the positions of all rice transporters. Links are provided to the MSU/TIGR and RAP-DB rice genome annotation databases. We hope this format will make it easier to compare closely related transporters within different families as well as perform global comparisons between sets of related families. We would greatly appreciate any feedback you may have that would assist us in continually improving this database.