GENES CLONADOS CODIFICANDO ANTIGENOS DE COCCIDIOSE AVIARIA QUE INDUZEM UMA RESPOSTA MEDIADA POR CELULAS E METODO DE PRODUCAO DOS MESMOS

• Main Authors: MARK CHRISTOPHER JENKINS, JOHN BARTON DAME, HYUN SOON LILLEHOY, MICHAEL DAVID RUFF, HARRY DALE DANFORTH
• Format: Patent
• Language: Portuguese
• Published: 20.11.1990
• Edition: 5
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS THEREOF; CULTURE MEDIA; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; ORGANIC CHEMISTRY; PEPTIDES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PROCESSES USING MICROORGANISMS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; VINEGAR; WINE

Disclosed are DNA sequences which code for antigenic proteins, methods for indentifying such DNA sequences, and antigens coded for by such DNA sequences. The first step of the method is to provide a multiplicity of DNA sequences. These sequences are then inserted into DNA expression vectors to form recombinant expression vectors. The expression vectors are inserted into suitable hosts to form transformants which express the DNA sequences. The transformants are then contacted to antibodies directed against Eimeria antigens to identify transformants containing DNA sequences which code for Eimeria antigens. These antigens are then produced from the DNA sequences identified as coding for the antigens. The antigens so produced are contacted to white blood cells which effect a cell-mediated immune response, which white blood cells are sensitized to an antigenic Eimeria protein, to thereby identify DNA sequences which code for antigens that induce a cell-mediated immune response to avian coccidiosis. The DNA sequences of the present invention comprise cloned genes or fragments thereof that code on expression for antigenic protein that activates white blood cells which effect a cell-mediated immune response, which white blood cells are sensitized to an antigenic Eimeria protein.