BIOTECHNOLOGICAL POTENTIAL OF P450 MONOOXYGENASES - HIGH-LEVEL PRODUCTION OF BOVINE CYTOCHROME P450C17 MONOOXYGENASE DURING MEDIUM CELL-DENSITY CULTURE OF A RECOMBINANT YEAST, SACCHAROMYCES-CEREVISIAE GRF-18 (YEP-TOKU1)
H. Nishihara et al., BIOTECHNOLOGICAL POTENTIAL OF P450 MONOOXYGENASES - HIGH-LEVEL PRODUCTION OF BOVINE CYTOCHROME P450C17 MONOOXYGENASE DURING MEDIUM CELL-DENSITY CULTURE OF A RECOMBINANT YEAST, SACCHAROMYCES-CEREVISIAE GRF-18 (YEP-TOKU1), Journal of biotechnology, 56(1), 1997, pp. 57-61
Bovine cytochrome P450c17 monooxygenase was produced in a 30-L ferment
er by Saccharomyces cerevisiae GRF18 (YEp-Toku1), harboring the GAL10
promoter, and using conditions of medium cell density culture. Upon ad
dition of D-galactose as an inducer and FeCl3 as a cofactor, cells beg
an to produce the P450 hemoprotein. The yield of this enzyme reached a
maximum after 31 h but its formation continued for more than 60 h aft
er induction. The amount of P450c17 produced was 4.7-fold as compared
to shake flask experiments. (C) 1997 Elsevier Science B.V.