Laboratory of Genetic Engineering;
Institute of Biotechnology;
Molecular Genetics Center;
Beijing 100850;
PRC Department of Biochemistry and Molecular Biology;
Institute of Basic Medical Sciences;
Beijing 1000850 PRC;
Laboratory of Genetic Engineering;
Institute of Biotechnology;
Molecular Genetics Center;
Beijing 100850;
PRC;
human; Pro-urokinase; cDNA; CHO-DHFR; cells; gene; co-transfection; gene; co-amplification; PMA; superinduction;