TIGRFAMs and Genome Properties: tools for the assignment of molecular function and biological process in prokaryotic genomes. - Jeremy D. Selengut; Daniel H. Haft; Tanja Davidsen; Anurhada Ganapathy; Michelle Gwinn-Giglio; William C. Nelson; Alexander R. Richter; Owen White (Nucleic Acids Res., 2007)

CharProtDB: a database of experimentally characterized protein annotations. - 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 (Nucleic Acids Res., 2012)