Mutant tyrosine repressor proteins

Details Mutant tyrosine repressor proteins Mutant tyrosine repressor proteins

2005-08-23

2005-08-23

Kerr, Kathleen (Department: 1652)

Chemistry: natural resins or derivatives; peptides or proteins;

Proteins, i.e., more than 100 amino acid residues

C530S825000

Reexamination Certificate

active

06933365

ABSTRACT:
A gene coding for a mutant tyrosine repressor having increased positive regulatory activity for expression of the tyrosine phenol lyase gene compared with a tyrosine repressor not having mutation is obtained by introducing a mutation into a tyrosine repressor gene ofErwinia herbicola, introducing the gene into which the mutation is introduced intoEscherichia coliexpressing a lactose operon under the control of a promoter and enhancer of the tyrosine phenol lyase gene derived fromErwinia herbicola, and selecting a transformed strain having increased β-galactosidase activity.

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patent: 11-313672 (1999-11-01), None
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