Variant proteins associated with ionophore resistance in sporozoites ofEimeria tenella (Coccidia) Academic Article uri icon


  • Protein samples prepared from sporozoites of two ionophore-sensitive strains (WIS and Penn St) and three resistant strains (FS139, FS459, and FS462) of Eimeria tenella were subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), native polyacrylamide gel electrophoresis (native PAGE), or two-dimensional electrophoresis with native PAGE and SDS-PAGE. Variant proteins that might be associated with ionophore resistance were observed in resistant field strains on native PAGE. When two-dimensional electrophoresis was conducted, four over-expressed peptides with approximate molecular weights of 97, 71, 70, and 50 kDa were observed in the FS139 field strain in comparison with the WIS laboratory strain.

author list (cited authors)

  • Zhu, G., & McDougald, L. R.

citation count

  • 2

publication date

  • June 1993