| abstract |
(57) Abstract: To provide an expression library in which all cDNA clones are contained in the same ratio as a substance source for finding an unknown protein. Substances that can be used as medicines are selected from this library. SOLUTION: A homogenized module structure-containing library containing a translation region of a protein is constructed by a filamentous phage or the like, and a desired clone is selected from the expressed protein by biopanning or a yeast two-hybrid system. |