Production and purification of human menin from Drosophila melanogaster S2 cells using stirred tank reactor (original) (raw)

Abstract

A process was developed for producing human menin from transformed Drosophila Schneider 2 cells. Protein expression was achieved after inducing the metallothionein promoter by adding copper sulfate to cells growing in suspension in a stirred-tank reactor. Experiments in shake flasks showed that the production of menin was improved when the induction was conducted late in the exponential phase of cell growth at a concentration of 1–2 × 107 cells ml-1, with a copper concentration of 0.2 mM for no more than 24 h. This observation was confirmed by experiments in bench-scale fermentors. Subsequently, a pilot-scale fermentation yielded 1 mg l-1 culture of purified menin.

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Authors and Affiliations

  1. Biotechnology Unit, NIDDK, NIH, Bethesda, MD, 20892, U.S.A.
    M. A. Valle
  2. Center for Agriculture Biotechnology, University of Maryland, U.S.A.
    M. A. Valle
  3. Metabolic Diseases Branch, NIDDK, NIH, U.S.A.
    M. B. Kester, A. L. Burns, S. J. Marx & A. M. Spiegel
  4. Biotechnology Unit, NIDDK, NIH, Bethesda, MD, 20892, U.S.A.
    J. Shiloach

Authors

  1. M. A. Valle
  2. M. B. Kester
  3. A. L. Burns
  4. S. J. Marx
  5. A. M. Spiegel
  6. J. Shiloach

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Correspondence toJ. Shiloach.

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Valle, M.A., Kester, M.B., Burns, A.L. et al. Production and purification of human menin from Drosophila melanogaster S2 cells using stirred tank reactor.Cytotechnology 35, 127–135 (2001). https://doi.org/10.1023/A:1017586523710

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