Objective To identify the specific antigen expressed in Leishmania donovani amastigotes. Methods The promastigotes of L.donovani were cultured and transferred into axenic amastigotes in vitro.The total proteins of promastigotes and axenic amastigotes were separated using two-dimensional electrophoresis(2-DE)in a broad pI range(3-10).Proteins were identified by Western blotting with mouse serum against L.donovani amastigotes.Antigens specifically expressed by promastigotes and axenic amastigotes were analyze...