Defensins knowledgebase: a manually curated database and information source focused on the defensins family of antimicrobial peptides. - Shalin Seebah; Anita Suresh; Shaowei Zhuo; Yong How Choong; Hazel Chua; Danny Chuon; Roger Beuerman; Chandra Verma (Nucleic Acids Res., 2007)