Fig. 1From: Tandem mass tag (TMT)-based proteomic analysis of Cryptosporidium andersoni oocysts before and after excystationFresh purified oocysts of C. andersoni. a and b Oocysts of C. andersoni were purified from adult cow’s feces with sucrose solution density gradient centrifugation and cesium chloride density gradient centrifugation (a ×40; b ×100). c and d Oocysts of C. andersoni visualized by SEMBack to article page