发明公开
EP0281104A1 Novel plasmids 失效
Plasmide。

Novel plasmids
摘要:
A plasmid consisting essentially of

(a) a DNA fragment containing tryptophanase structural genes,
(b) a DNA fragment containing a tryptophan promoter and operator which control the expression of the tryptophanase structural genes,
(c) a DNA fragment containing genes governing the automonous replication system of a Col E1-type plasmid, and
(d) a DNA fragment containing genes derived from F-plasmid and governing its partition system.
Microorganisms transformed with the said plasmid were useful for the production of L-tryptophan having excellent producibility of tryptophanase.
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