OrGene is an organ based categorized human genome database developed for the categorization of human genome on the basis of organs. The function of the proteins encoded by these genes is also made available. OrGene will expand in future to other organs, genes and cover more useful information of other species. Primers provided for each gene, with their features and conditions given to facilitate the researchers, are useful in PCR amplification, especially in cloning experiments. Flexible database design, expandability and easy access of information to all of the users are the main features of the database. The Database is publicly available at http://www.orgene.pakbiz.org.