| 摘要 |
<p>This invention relates to a DNA construct, methods of selecting for high-expressing host cells, a method of producing a protein of interest in high yields and a method of producing eukaryotic cells having multiple copies of a sequence encoding a protein of interest. In one method, stable clones capable of producing a high level of a product of interest are generated from one step of a direct selection immediately after transfection.</p> |
