Abstract: The inventive subject matter includes an antimicrobial peptide vectored composition made of a bacterial protein expression vehicle expressing one or more recombinant antimicrobial peptide effector molecules. More specifically these novel recombinant antimicrobial peptide effector molecules exhibit preferential antimicrobial activity. In some embodiments, the antimicrobial activity is facilitated via interaction with the lipid bilayer of the parasitic cell form, leading to membrane pore formation and resulting in cell lysis. The utility of the current inventive subject matter has demonstrated a reduced viability of Eimeira acervulina sporozoites was shown in vitro using a sporozoite killing assay.

Abstract: The inventive subject matter includes an antimicrobial peptide vectored composition made of a bacterial protein expression vehicle expressing one or more recombinant antimicrobial peptide effector molecules. More specifically these novel recombinant antimicrobial peptide effector molecules exhibit preferential anti-microbial activity. The utility of the current inventive subject matter has demonstrated a reduced viability of Eimeira acervulina sporozoites in vitro using a sporozoite killing assay. More specifically, the antimicrobial peptide vectored composition is a bacterial protein expression vehicle expressing one or more recombinant antimicrobial peptide effector molecules, wherein the one or more recombinant antimicrobial peptide effector molecules are engineered from a NK-lysin gene and the one or more recombinant antimicrobial peptide effector molecules are engineered to express functionally active NK-2.

Abstract: The inventive subject matter includes an antimicrobial peptide vectored composition made of a bacterial protein expression vehicle expressing one or more recombinant antimicrobial peptide effector molecules. More specifically these novel recombinant antimicrobial peptide effector molecules exhibit preferential anti¬microbial activity. The utility of the current inventive subject matter has demonstrated a reduced viability of Eimeira acervulina sporozoites in vitro using a sporozoite killing assay. More specifically, the antimicrobial peptide vectored composition is a bacterial protein expression vehicle expressing one or more recombinant antimicrobial peptide effector molecules, wherein the one or more recombinant antimicrobial peptide effector molecules are engineered from a NK-lysin gene and the one or more recombinant antimicrobial peptide effector molecules are engineered to express functionally active NK-2.

Abstract: NK-2 synthetic peptide derived from cationic core region of porcine NK-lysin has an antimicrobial and antitumor polypeptide that is considered to play a pivotal role in innate defense immunity. To evaluate the antimicrobial properties of synthetic chicken NK-lysin peptides, we investigated cytolytic activity against apicomplexan parasites like Eimeria sporozoites, Neospora tachyzoites and Cryptosporidum sporozoites. The chicken NK-2 (cNK-2) lytic peptide which corresponds to amino acid residues of porcine NK-2 peptide significantly disrupted Eimeria and Cryptosporidum sporozoites and Neospora tachyzoites. In contrast, no bactericidal activity was observed on E. coli BMH71-18. The cNK-2 lytic peptide is novel antimicrobial agent which can be used to intervene and treat economically costly infections in the animal industry.

Abstract: NK-2 synthetic peptide derived from cationic core region of porcine NK-lysin has an antimicrobial and antitumor polypeptide that is considered to play a pivotal role in innate defense immunity. To evaluate the antimicrobial properties of synthetic chicken NK-lysin peptides, we investigated cytolytic activity against apicomplexan parasites like Eimeria sporozoites, Neospora tachyzoites and Cryptosporidum sporozoites. The chicken NK-2 (cNK-2) lytic peptide which corresponds to amino acid residues of porcine NK-2 peptide significantly disrupted Eimeria and Cryptosporidum sporozoites and Neospora tachyzoites. In contrast, no bactericidal activity was observed on E. coli BMH71-18. The cNK-2 lytic peptide is novel antimicrobial agent which can be used to intervene and treat economically costly infections in the animal industry.

Abstract: 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.

Abstract: 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.