abstract |
(57) Abstract: A chimeric protein containing a protein of interest, which is easily cleaved by a processing enzyme so that the protein of interest can be efficiently recovered. SOLUTION: The following formula is used: A-L-B wherein A is a protected peptide; B is a target peptide; and L is a linker peptide having a sequence at its C-terminal portion. : X1-X2- (Pro, Lys Or Arg) -Arg (wherein X1 and X2 are any amino acids) and has a His-rich portion at the N-terminus]. |