| 摘要 |
The invention concerns a method for random mutagenesis comprising the replication of a DNA sequence in the presence of an efficient amount of at least a mutase, for example a Pol &bgr;, the random mutagenesis rate being at least of the order of 1 mutation for 400 base pairs. The replication product, optionally recombined and amplified, is cloned in an expression vector so as to generate mutated polypeptides which will be selected on the basis of the desired property or properties.
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