(19)

(11)

EP 0 814 830 A1

(12)

(43) Date of publication: 07.01.1998 Bulletin 1998/02 (21) Application number: 96908839.0 (22) Date of filing: 15.03.1996

(51) International Patent Classification (IPC):  C07K 14/ 555( . ) C12N 5/ 078( . ) (86) International application number: PCT/US1996/003613 (87) International publication number: WO 1996/028184 (19.09.1996 Gazette 1996/42)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 15.03.1995 US 19950404667 (71) Applicant: Rothschild, Peter Nuevo Leon 67100 (MX)	(72) Inventor: ROTHSCHILD, Peter R. Cd. Guadulupe, NL 67100 Mexico (MX) (74) Representative: Perry, Robert Edward  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)