Ramana Madupu Alexander R. Richter Robert J. Dodson Lauren M. Brinkac Derek M. Harkins A. Scott Durkin Susmita Shrivastava Granger G. Sutton Daniel H. Haft CharProtDB: a database of experimentally characterized protein annotations. 237-241 2012 40 Nucleic Acids Research Database-Issue http://dx.doi.org/10.1093/nar/gkr1133 db/journals/nar/nar40.html#MadupuRDBHDSSH12