(19)

(11)

EP 0 920 525 A1

(12)

(43) Date of publication: 09.06.1999 Bulletin 1999/23 (21) Application number: 97935001.0 (22) Date of filing: 14.07.1997

(51) International Patent Classification (IPC):  C12N 15/ 09( . ) C12N 15/ 81( . ) C12R 1/ 84( . ) C12N 1/ 19( . ) C12N 15/ 87( . ) (86) International application number: PCT/US1997/012581 (87) International publication number: WO 1998/002565 (22.01.1998 Gazette 1998/03)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 17.07.1996 US 19960042910 (71) Applicant: ZymoGenetics Seattle, WA 98102 (US)	(72) Inventors: RAYMOND, Christopher, K. Seattle, WA 98103 (US) HOLDERMAN, Susan, D. Kirkland, WA 98033 (US) VANAJA, Erica Seattle, WA 98103 (US) (74) Representative: Bizley, Richard Edward, et al  Hepworth, Lawrence, Bryer & Bizley Merlin House Falconry Court Baker's Lane Epping Essex CM16 5DQ Epping Essex CM16 5DQ (GB)