摘要:
The invention relates to polyepitope carrier proteins that comprise at least five CD4+ T cell epitopes, for conjugation to capsular polysaccharides. The carrier proteins are use useful as components of vaccines that can elicit a T-cell dependent immune response. These vaccines arm particularly useful to confer protection against infection from encapsulated bacteria in infants between the ages of 3 months and about 2 years.
摘要:
The present invention relates to (a) variable regions of heavy and light chains of an antibody specific to a surface antigen in sporozoite of Eimeria spp.; (b) a recombinant scFV (single chain variable fragment) antibody prepared using the variable regions; (c) a method for preparing a recombinant scFv antibody; and (d) an expression vector for expressing a recombinant scFv antibody.
摘要:
The present invention relates to (a) variable regions of heavy and light chains of an antibody specific to a surface antigen in sporozoite of Eimeria spp.; (b) a recombinant scFV (single chain variable fragment) antibody prepared using the variable regions; (c) a method for preparing a recombinant scFv antibody; and (d) an expression vector for expressing a recombinant scFv antibody.
摘要:
Nucleic acids (SEQ ID NOs: 1-3) encoding a Plasmodium falciparum liver stage antigen, the LSA-3 immunogenic polypeptide, recombinant vectors containing the nucleic acids, and methods of making the polypeptide using the nucleic acids and vectors are disclosed.
摘要翻译:公开了编码恶性疟原虫肝阶段抗原的核酸(SEQ ID NO:1-3),LSA-3免疫原性多肽,含有核酸的重组载体,以及使用核酸和载体制备多肽的方法。
摘要:
This invention relates to novel recombinant antigenic proteins of avian coccidiosis, and fragments thereof containing antigenic determinants, and to the genes that encode the antigenic peptides. This invention also relates to vaccines made using the novel antigenic proteins of avian coccidiosis and to methods of immunizing chickens against avian coccidia.
摘要:
This invention relates to novel recombinant antigenic proteins of avian coccidiosis, and fragments thereof containing antigenic determinants, and to the genes that encode the antigenic peptides. This invention also relates to vaccines made using the novel antigenic proteins of avian coccidiosis and to methods of immunizing chickens against avian coccidia.
摘要:
An immunogenic composition for a vaccine against human malaria. The composition contains one or more polypeptides that can be extracted from a schizont form of a human-malaria parasite such as a Plasmodium falciparum. The polypeptides have a molecular weight of 40,000 to 140,000, and they react with protective antibodies which come from a monkey resistant to the malaria parasite and which can, by in vivo transfer to a monkey sensitive to the parasite, protect the sensitive monkey against the parasite.
摘要:
A method of detecting Toxoplasma infection and distinguishing acute infection from chronic infection is provided, comprising the steps of combining a sample suspected of containing antibodies to Toxoplasma antigens with a acute-phase-specific antigen reactive with an antibody specific for an acetone-treated Toxoplasma antigen under conditions favorable for formation of antigen-antibody complex, and detecting formation of the complex.
摘要:
T. Cruzi polypeptide antigens that react with serum from chagasic individuals and does not cross-react with serum from uninfected individuals or individuals infected with related parasites such as Leishmania is described. The DNA from T. Cruzi culture trypomastigotes and epimastigotes coding for antigenic material having a molecular weight of 70 kd is identified, sequenced, and inserted into a cloning vector, which, in turn, is inserted into a host cell line. The expressed polypeptide is immunologically reactive with sera from Chagas' disease infect patients. The cloned gene for the 70 kd polypeptide is expressed and purified and a diagnostic test for Chagas' disease comprising the synthesized polypeptide is described.
摘要:
DNA peptide complexes are prepared from organisms containing DNA to produce specific peptide complexes in a substantially pure state and useful for diagnostic, therapeutic and prophylactic purposes. The complexes can be prepared from bacteria, fungi, plants, human or animal tissue by homogination, centrification, absorption on DEAE cellulose, serial elution of the cellulose followed by dialysis and collection.