ZymoGenetics Financial results Conference Call on August 3, 2010.

ZymoGenetics to Host Conference Call and Webcast on August 3, 2010 to Discuss Second Quarter 2010 Financial Results

SEATTLE--(BUSINESS WIRE)--Jul 12, 2010 - ZymoGenetics, Inc. (NASDAQ: ZGEN) announced today that it will report second quarter financial results on Tuesday, August 3, 2010 after market close. Following the announcement, members of the company's senior management will discuss the results and provide a corporate update.

Conference Call and Webcast Information

ZymoGenetics Second Quarter 2010 Financial Results Conference Call will be held on August 3, 2010 at 4:30 p.m. Eastern Time and may be accessed at www.zymogenetics.com or by dialing (877) 407-0778 (International: 201-689-8565). Participants should dial in to the call approximately 10 minutes prior to the scheduled start time to register. A live audio webcast and slide presentation can be accessed by going to: www.zymogenetics.com. The webcast will be archived for 60 days.

For replay, please visit www.zymogenetics.com or use the following information:

• U.S. callers: (877) 660-6853
• International callers: (201) 612-7415

Replay passcode account #: 286

Conference ID #: 353663