NEWSROOM | NEWS RELEASES | PRESS KIT | AWARDS & RECOGNITION CORPORATE MILESTONES | CORPORATE PROFILE | FACT SHEET | ZYMOGENETICS CAMPUS PRESS KIT Return PRODUCT CANDIDATE BACKGROUNDERS These backgrounders offer detailed information about each product candidate. Interleukin 21 (IL-21) Interferon lambda-1 (also referred to as Interleukin 29 or IL-29) Back to top copyright © 2003 - 2008 ZymoGenetics