Enhanced secretion of heterologous proteins by hosts using subst

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Recombinant dna technique included in method of making a...

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435 614, 435 695, 435 698, 435 699, 435212, 435219, 435 693, 536 27, 935 48, 935 37, 935 47, C07H 1512, C12P 2100, C12N 116

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050827839

ABSTRACT:
Improved secretion of heterologous proteins by hosts such as yeast by using promoters of at most intermediate strength with heterologous DNA secretion signal sequences is disclosed. A promoter of at most intermediate strength, such as the actin (ACT) or iso-1-cytochrome c (CYC1) promoter in S. cerevisiae is operatively linked to a DNA signal sequence, such as the Mf.alpha.1 signal sequence. A DNA sequence for a selected protein, such as somatomedin C (SMC), tissue plasminogen activator (TPA) or tumor necrosis factor (TNF), may be operatively linked to the DNA signal sequence.

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