Abstract:
PURPOSE: Provided is a recombinant vector which comprises repeat-linked cell adhesion peptide(R-CAP) genes, thereby accumulating the R-CAP in periplasm of cell so that R-CAP can be easily purified. And an E.coli transformant and a method for preparing R-CAP therefrom are also provided. CONSTITUTION: The recombinant vector is constructed by cloning a gene for encoding CAP into a vector having a sequence encoding maltose binding protein(MBP). The cloning is preferably repeated 1 to 15 times. The recombinant vector preferably contains tac promoter. The vector is selected from pMal-p2, pMal-c2 and the like, and E.coli strain is selected from E.coli JM109, E.coli DH5α, or E.coli SF130. The method of preparing R-CAP comprises the steps of culturing an E.coli transformant and recovering the R-CAP from periplasm fraction. The recovered R-CAP is polypeptide that a CAP unit is repeat-linked 1 to 30 times. The R-CAP is added to pharmaceutical compositions for treating the wound and for alleviating the stimulation of skin. R-CAP can be used in an amount of 0.1 to 10 microgram/day.
Abstract:
PURPOSE: Provided is a recombinant vector which comprises repeat-linked cell adhesion peptide(R-CAP) genes, thereby accumulating the R-CAP in periplasm of cell so that R-CAP can be easily purified. And an E.coli transformant and a method for preparing R-CAP therefrom are also provided. CONSTITUTION: The recombinant vector is constructed by cloning a gene for encoding CAP into a vector having a sequence encoding maltose binding protein(MBP). The cloning is preferably repeated 1 to 15 times. The recombinant vector preferably contains tac promoter. The vector is selected from pMal-p2, pMal-c2 and the like, and E.coli strain is selected from E.coli JM109, E.coli DH5α, or E.coli SF130. The method of preparing R-CAP comprises the steps of culturing an E.coli transformant and recovering the R-CAP from periplasm fraction. The recovered R-CAP is polypeptide that a CAP unit is repeat-linked 1 to 30 times. The R-CAP is added to pharmaceutical compositions for treating the wound and for alleviating the stimulation of skin. R-CAP can be used in an amount of 0.1 to 10 microgram/day.