Enterotoxigenic Escherichia coli (ETEC) F4 was one of the most serious pathogenic bacteria inducing piglet diarrhea, ETEC F4 receptor in small intestine epithelium cells is of great importance for piglet's disease-resistance breeding. Differential display reverse transcription (DDRT) PCR method was used to screen genes related to piglet ETEC F4 receptor in this study, 8 ESTs were compared with GenBank. The result showed that one of them had 91% homologous to human glycosylphosphatidylinositol anchlor 1(GPI 1), which indicated th...