Abstract: This application relates to methods of screening molecules capable of inhibiting the survival of Helicobacter pylori in vivo by specifically inhibiting the activity of UreI, to the molecules identified by these methods, and to the use of these molecules to treat or prevent H. pylori infection.

Abstract: The present application relates to nucleotide sequences which regulate the biosynthesis of the flagella proteins Helicobacter pylori, to the proteins encoded by these sequences and to aflagellate bacterial strains. The invention also relates to the use of these means for detecting an infection due to H. pylori or for protecting against such an infection.

Abstract: A method of treating or preventing Helicobacter infection in humans or animals comprising the step of administering a molecule, such as a molecule that can interact with UreI, capable of inhibiting the growth or survival of Helicobacter in vivo to a human or animal in need of such treatment.

Abstract: The present application relates to nucleotide sequences which regulate the biosynthesis of the flagella proteins Helicobacter pylori, to the proteins encoded by these sequences and to aflagellate bacterial strains. The invention also relates to the use of these means for detecting an infection due to H.pylori or for protecting against such an infection.

Abstract: The present application relates to nucleotide sequences which regulate the biosynthesis of the flagella proteins Helicobacter pylori, to the proteins encoded by these sequences and to aflagellate bacterial strains. The invention also relates to the use of these means for detecting an infection due to H.pylori or for protecting against such an infection.

Abstract: Disclosed are polypeptides named HP1122, Cj1464 and PA3351 which are the anti-&sgr;28 factor of Helicobacter pylori, Campylobacter jejuni and Pseudomonas aeruginosa, respectively and fragments and variants thereof. Also disclosed is a polypeptide named SID1122 which is the domain of Helicobacter pylori's HP1122 polypeptide involved in a specific interaction with Helicobacter pylori &sgr;28 (HP1032) and which has an anti-&sgr;28 factor activity.

Abstract: This invention relates to methods of screening molecules capable of inhibiting the survival of Helicobacter pylori in vivo by specifically inhibiting the activity of UreI, to the molecules identified by these methods, and to the use of these molecules to treat or prevent H. pylori infection.

Abstract: There is provided an immunogenic composition capable of inducing protective antibodies against Helicobacter infection characterized in that it comprises: i) at least one sub-unit of a urease structural polypeptide from Helicobacter pylori (SEQ ID NO: 22,26), or a fragment thereof, said fragment being recognized by antibodies reacting with Helicobacter felis urease (SEQ ID NO: 20-21), and/or at least one sub-unit of a urease structural polypeptide from Helicobacter felis (SEQ ID NO: 20-21), or a fragment thereof, said fragment being recognized by antibodies reacting with Helicobacter pylori urease (SEQ ID NO: 22-26); ii) and/or, a heat shock protein (Hsp), or chaperonin, from Helicobacter, or a fragment of said protein. The preparation, by recombinant means, of such immunogenic compositions is also provided.

Abstract: This invention relates to Helicobacter species aliphatic amidase AmiE polypeptides, the DNA encoding those polypeptides and transformed microorganisms capable of expressing those polypeptides. This invention also relates to the use of Helicobacter sp. (particularly Helicobacter pylori) amidase AmiE polypeptides and antibodies specific for those polypeptides in immunogenic, therapeutic, and diagnostic applications. The invention additionally relates to processes of producing Helicobacter species aliphatic amidase AmiE polypeptides and intermediates useful in the production of those polypeptides.

Abstract: There is provided an immunogenic composition capable of inducing protective antibodies against Helicobacter infection characterized in that it comprises: i) at least one sub-unit of a urease structural polypeptide from Helicobacter pylori, or a fragment thereof, said fragment being recognized by antibodies reacting with Helicobacter felis urease, and/or at least one sub-unit of a urease structural polypeptide from Helicobacter felis, or a fragment thereof, said fragment being recognized by antibodies reacting with Helicobacter pylori urease; ii) and/or, a heat shock protein (Hsp), or chaperonin, from Helicobacter, or a fragment of said protein. The preparation, by recombinant means, of such immunogenic compositions is also provided.

Abstract: The invention relates more particularly to any nucleotide sequence corresponding, according to the universal genetic code, to at least one part of the following amino acid sequence (VIII) of 61 kDa (coded by the nucleotide sequence (VII)):1MKKISRKEYVSMYGPTTGDKVRLGDTDLIAEVEHDYTTYGEELKFGGGKTLREGM SQSNNPSKEELDLIITNALIVDYTGIYKADIGIKDGKIAGIGKGGNKDMQDGVKNN LSVGPATEALAGEGLIVTAGGIDTHIHFISPQQIPTAFASGVTTMIGGGTGPAD GTNATTTTPGRRNLKWMLRAAEEYSMNLGFLAKGNASNDASLADQIEAGAIGF KIHEDWGTTPSAINHALDVADKYDVQVAIHTDTLNEAGCVEDTMAAIAGRTMH TFHTEGAGGGHAPDIIKVAGEHNILPASTNPTIPFTVNTEAEHMDMLMVCHHLD KSIKEDVQFADSRIRPQTIAAEDTLHDMIGIFSITSSDSQAMGRVGEVTTRTWQT ADKNKKEFGRLKEEKGDNDNFRIKRYLSKYTINPAIAHGISEYVGSVEVGKVADL VLWSPAFFGVKPNMIIKGGFIALSQMGDANASIPTPQPVYYREMFAHHGKAKYD ANITFVSQAAYDKGIKEELGLERQVLPVKNCRNITKKDMQFNDTTAHIEVNPETY HVFVDGKEVTSKPANKVSLAQLFSIF.sub.--.sbsb.569.Molecular weight: 61,729 daltons.The comparison between the aminoacid sequence (VIII) with the Jack bean urease sequence described in Eur. J. Biochem.

Abstract: Oligonucleotide sequences are disclosed specific to H. pylori urease and useful as DNA probes and primers in the detection of H. pylori infection in humans. Also disclosed are methods of hybridization and amplification using these sequences.

Abstract: This invention relates to Helicobacter polypeptides, particularly UreE, UreF, UreG, UreH, and UreI, immunogenic fragments of those polypeptides, and compositions containing those polypeptides or fragments. This invention also relates to purified antibodies that bind to the polypeptides of this invention and to compositions comprising those antibodies.

Abstract: The invention relates to a sequence of nucleotides, characterized in that it comprises at least a part of a sequence coding for a protein with urease activity such as that expressed by C. pylori.Another subject of the invention is the uses of this sequence, in particular for the in vitro diagnosis of diseases associated with the presence of Campylobacter pylori in the organism of an individual.

Abstract: There is provided an immunogenic composition capable of inducing protective antibodies against Helicobacter infection characterized in that it comprises:i) at least one sub-unit of a urease structural polypeptide from Helicobacter pylori (SEQ ID NOS:22,26), or a fragment thereof, said fragment being recognized by antibodies reacting with Helicobacter felis urease (SEQ ID NOS:20-21), and/or at least one sub-unit of a urease structural polypeptide from Helicobacter felis (SEQ ID NOS:20-21), or a fragment thereof, said fragment being recognized by antibodies reacting with Helicobacter pylori urease (SEQ ID NOS:22-26);ii) and/or, a heat shock protein (Hsp), or chaperonin, from Helicobacter, or a fragment of said protein.The preparation, by recombinant means, of such immunogenic compositions is also provided.

Abstract: The invention relates to polypeptides possessing urease activity of the type expressed naturally in C. pylori and immunogenic compositions comprising those polypeptides. This invention also relates to antibodies to polypeptides possessing urease activity and use of those antibodies to detect C. pylori.

Abstract: The invention relates to a sequence of nucleotides, characterized in that it comprises at least a part of a sequence coding for a protein with urease activity such as that expressed by C. pylori.Another subject of the invention is the uses of this sequence, in particular for the in vitro diagnosis of diseases associated with the presence of Campylobacter pylori in the organism of an individual.

Abstract: The invention relates to a sequence of nucleotides, characterized in that it comprises at least a part of a sequence coding for a protein with urease activity such as that expressed by C. pylori.Another subject of the invention is the use of this sequence, in particular for the in vitro diagnosis of diseases associated with the presence of Campylobacter pylori in the organism of an individual.