Stable DNA constructs for expression of .alpha.-1 antitrypsin

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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4351723, 435255, 435256, 435320, 536 27, 935 28, 935 37, 935 69, C12P 2100, C12P 2102, C12N 1500, C12N 700

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049313738

ABSTRACT:
Methods are provided for producing .alpha.-1-antitrypsin in host cells and for selecting transformed cells comprising the step of transforming the host cell with a DNA molecule comprising a gene which complements a deficiency in the host cell. The host cell is a strain having a deficiency in a function necessary for normal cell growth. The gene in the DNA molecule, such as a plasmid, which complements the deficiency serves as a selectable marker whereby the growth conditions for selection may comprise a conventional complex medium.

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