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Vectors for expression of the RK gene and mammalian cells. (A) pCMV5-RK; (I) pCMV5-RK(His)6; (II) vectors (Materials and Methods) used for the transient transfection of COS-1 mammalian cells. (B) pACH-RK(His)6 vector for the preparation of stable HEK293S mammalian cell lines (Materials and Methods).
