abstract |
The present invention relates to the use of a protoberberine derivative, which relates to a protein activated by mitogen in Schizoxacaromyces pombe that modulates the growth, differentiation and physiological activity of cells by transmitting external stimuli to cells. In the phosphatase delivery system, the present invention relates to a protoberberine derivative that acts as an inhibitor of activity of whis1 phosphatase and SP1 kinase. |