Based on peptide aptamers, the present study inserted ABAD-DP into the disulfide bond of human thioredoxin (TRX) using molecular cloning technique to construct a fusion gene that can express the TRX1-ABAD-DP-TRX2 aptamer.     ///    These findings confirmed the possibility of constructing TRX-based peptide aptamer using ABAD-DP. 