Antigenic proteins and vaccines containing them for prevention of coccidiosis.

摘要

Isolated genomic DNA molecule having a defined nucleic acid sequence and encoding an antigenic protein (I) derived from Eimeria tenella is new. (I) has a molecular wt. of about 25000 daltons and is composed of two polypeptides joined by a disulphide bond. One polypeptide has a molecular wt. of about 17000 daltons, has a blocked N-terminal amino acid and a defined amino acid sequence. The other polypeptide has a molecular wt. of about 8000 daltons and a defined amino acid sequence.