Properties of the Hansenula polymorpha-derived constitutive GAP promoter, assessed using an HSA reporter geneopen access
- Authors
- Heo, Joo-Hyung; Hong, Won Kyoung; Cho, Eun Young; Kim, Moo Woong; Kim, Jeong-Yoon; Kim, Chul Ho; Rhee, Sang Ki; Kang, Hyun Ah
- Issue Date
- Nov-2003
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Constitutive expression; Glyceraldehyde-3-phosphate dehydrogenase promoter; Hansenula polymorpha; High cell density culture; Human serum albumin
- Citation
- FEMS YEAST RESEARCH, v.4, no.2, pp 175 - 184
- Pages
- 10
- Journal Title
- FEMS YEAST RESEARCH
- Volume
- 4
- Number
- 2
- Start Page
- 175
- End Page
- 184
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/56978
- DOI
- 10.1016/S1567-1356(03)00150-8
- ISSN
- 1567-1356
1567-1364
- Abstract
- The glyceraldehyde-3-phosphate dehydrogenase promoter, P-GAP, was employed to direct the constitutive expression of recombinant human serum albumin (HSA) in Hansenula polymorpha. A set of integration vectors containing the HSA cDNA under the control of P-GAP was constructed and the elemental parameters affecting the expression of HSA from P-GAP were analyzed. The presence of a 5'-untranslated region derived from the HSA cDNA and the integration of the expression vector into the GAP locus were shown to improve the expression of HSA under P-GAP. Glycerol supported a higher level of HSA expression from P-GAP along with a higher cell density than either glucose or methanol. The growth at high glycerol concentrations up to 12% did not cause any significant repression of the cell growth. A high cell density culture, up to 83 g l(-1) dry cell weight with a HSA production of 550 mg l(-1), was obtained in less than 32 h of cultivation in a fed-batch fermentation employing intermittent feeding with 12% glycerol. The GAP promoter-based HSA expression system showed a higher specific production rate and required a much simpler fermentation process than the MOX promoter-based system, demonstrating that P-GAP can be a practical alternative of the MOX promoter in the large-scale production of HSA from H. polymorpha. (C) 2003 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.
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