High-level production and isolation of human recombinant α1-proteinase inhibitor in yeast

Autor: A. Weyens, Teresa Cabezón, N. Harford, Andrew W. Bollen, Marc Hoylaerts
Jazyk: angličtina
Předmět:
Zdroj: FEBS Letters. (1):83-87
ISSN: 0014-5793
DOI: 10.1016/0014-5793(86)81391-6
Popis: The cDNA coding for mature human alpha 1-proteinase inhibitor (alpha 1-PI) has been inserted into a variety of yeast expression vectors. Yeast cells transformed with these plasmids were then assayed for the production of mature, unglycosylated alpha 1-PI. The production level is optimal when the recombinant plasmid carries the TDH promoter, the complete 2mu and the leu2D selection marker. Biologically active recombinant alpha 1-PI can be purified either analytically, by affinity chromatography using a monoclonal antibody, or on a large scale, by a procedure involving precipitation of high-Mr yeast material with polyethylene glycol 3300 followed by successive chromatography on DEAE-agarose, Zn-chelate agarose, kappa-chain agarose, heparin-agarose and aminohexyl-agarose.
Databáze: OpenAIRE