Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing heterocyclic carbon compound having only o – n – s,...
Patent
1982-10-27
1985-05-28
Wiseman, Thomas G.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing heterocyclic carbon compound having only o, n, s,...
4351723, 435317, 435253, 435849, 435877, 935 29, 935 56, 935 60, 935 72, 935 73, 935 14, C12N 1500, C12N 120, C12N 100, C12P 1710
Patent
active
045201030
ABSTRACT:
Microbial synthesis of indigo dyestuff in indole-free media is disclosed. Indigo production is preferably accomplished by genetic transformation of selected host cells having the capacity to produce and accumulate indole (either as a result of endogenous genomic capacity or genetic transformation) to incorporate the capacity for synthesis of an aromatic dioxygenase enzyme. Growth of transformed cells under suitable conditions facilitates aromatic dioxygenase enzyme catalyzed oxidative transformation of cellular indole, with consequent formation of indigo from the oxidized reaction products. In a highly preferred embodiment, E. coli cells having endogenous indole production capacity are transformed with a DNA expression vector comprising the structural gene for naphthalene dioxygenase, resulting in the microbial synthesis of isolatable quantities of indigo.
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Amgen
Tarcza John Edward
Wiseman Thomas G.
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