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(11)

EP 0 771 353 A1

(12)

(43) Date of publication: 07.05.1997 Bulletin 1997/19 (21) Application number: 95923516.0 (22) Date of filing: 06.07.1995

(51) International Patent Classification (IPC):  A01K 67/ 027( . ) C12N 15/ 09( . ) C12N 9/ 00( . ) C12N 15/ 82( . ) (86) International application number: PCT/GB1995/001603 (87) International publication number: WO 1996/002650 (01.02.1996 Gazette 1996/06)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 18.07.1994 GB 19940014505 22.09.1994 GB 19940019081 (71) Applicant: ZENECA LIMITED London W1Y 6LN (GB)

(72) Inventors: KARVOUNI, Zoi GR-145 64 Kifissia (GR) JOHN, Isaac University of Nottingham Sutton Bonington Loughborough LE12 5RD (GB) TAYLOR, Jane Lancaster University Institute of Biological Sciences Lancaster LA1 4YQ (GB) WATSON, Colin Tucson, AZ 85721 (US) TURNER, Andrew Aberdeen AB9 2TN (GB) GRIERSON, Donald University of Nottingham Sutton Bonington Loughborough LE12 5RD (GB) (74) Representative: Huskisson, Frank Mackie, et al  Intellectual Property Department, ZENECA AGrochemicals, Jealott's Hill Research Station, P.O. Box 3538 Bracknell, Berkshire RG12 6YA Bracknell, Berkshire RG12 6YA (GB)