Patent number: 8329163
Abstract: Disclosed and claimed are a mutant of a gram negative bacterium, wherein said bacterium has at least one mutation in a nucleotide sequence which codes for a polypeptide having an identity which is equal or more than 70%, 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99% with an amino acid sequence coded by a nucleotide sequence selected from the group consisting of nucleotide sequences identified SEQ ID NO: 2, 6, 9, 12, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 75, 78, 81, 84, 87, 90, 93; said mutation resulting in attenuated virulence of the bacterium. Immunogenic compositions and vaccines containing such a mutant are also disclosed and claimed.
Type:
Grant
Filed:
April 20, 2011
Date of Patent:
December 11, 2012
Assignee:
Merial Limited
Inventors:
Helen Rachel Crooke, Jacqueline Elizabeth Shea, Robert Graham Feldman, Sylvain Gabriel Goutebroze, Francois Xavier Le Gros
Patent number: 8263566
Abstract: What is described are a compound of the formula wherein n is 0 or 1; A-B is —CH?CH— or —CH2—CH2—; R1 is C1-C12-alkyl, C3-C8-cycloalkyl or C2-C12-alkenyl; R2 is for example C1-C12-alkyl, C2-C12-alkenyl or C2-C12-alkinyl; which are optionally substituted with one to five substituents selected from the group consisting of OH, halogen, CN, —N3, —NO2, C3-C8-Cycloalkyl, norbornylenyl-, C3-C8-Cycloalkenyl; C3-C8-halocycloalkyl, C1-C12-alkoxy, C1-C6-alkoxy-C1-C6-alkoxy, C3-C8-cycloalkoxy, C1-C12-haloalkoxy, C1-C12-alkylthio, C3-C8-cycloalkylthio, C1-C12-haloalkylthio, C1-C12-alkylsulfinyl, C3-C8-cycloalkylsulfinyl, C1-C12-haloalkylsulfinyl, C3-C8-halocycloalkylsulfinyl, C1-C12-alkylsulfonyl, C3-C8-cycloalkylsulfonyl, C1-C12-haloalkylsulfonyl, C3-C8-halocycloalkylsulfonyl, —NR4R6, —X—C(?Y)—R4, —X—C(?Y)—Z—R4, —P(?O)(OC1-C6-alkyl)2, aryl, heterocyclyl, aryloxy, arylthio and heterocyclyloxy; R3 is for example H, C1-C12-alkyl or C1-C12-alkyl which is optionally substituted and, where applicable, to E/Z isomers, mixtu
Type:
Grant
Filed:
May 27, 2011
Date of Patent:
September 11, 2012
Assignee:
Merial Limited
Inventors:
Peter Maienfisch, Fiona Murphy Kessabi, Jerome Cassayre, Laura Quaranta, Thomas Pitterna, Ottmar Franz Hueter, Pierre Jung