CLONING, EXPRESSION AND VACCINE COMPOSITION CORRESPONDING TO A PEPTIDE ANTIGEN OF TOXOPLASMA GONDII

摘要

The invention provides a polypeptide corresponding to residues 197 - 216 of the 54 KDa antigen of T. gondii, having the amino acid sequence TDPGDVVIEELFNRIPETSV. Also within the scope of the invention is a method of producing the 54 KD antigen of T. gondii or the polypeptide corresponding to residues 197 - 216 thereof by expression from a host cell, for example from a host cell comprising a vaccinia virus or from a CHO cell.