Abstract:ObjectiveTo evaluate the construction of expression vector for fusion protein of cellpenetrating peptide CCL (PEPCCL). MethodsCCL6PEP6XHis was inserted into plasmid pABP, pABPCCL6PEP plasmid was extracted and then transfected into HEK293 cells, CCL6PEP6XHis was expressed and purified by chromatography and detected with Western Blot. ResultsPEPCCL express vector was successfully constructed and purified. PCR product of CCL6PEP6XHis Tag was ligated with T vector, recombinant was transferred into the host cells, then host cells were cultured, plasmid was extracted and sequenced, the sequence was identical to targeted gene. CCL6PEP6XHis was successfully inserted into the eukaryotic expression vector pABP, plasmid was extracted and digested, electrophoresis results revealed that a fragment with 430bp was digested by Hind Ⅲ+XbaⅠ, which was identical to the expected value. Western Blot revealed that CCL6PEP fusion protein could be recognized by His monoclonal antibody. ConclusionPEPCCL express vector can be constructed and expressed in eukaryotic cells.