Bacillusamyloliquefaciens α -amylase signal sequence fused in frame with human proinsulin is properly processed by Bacillussubtilis cells

A. A. Novikov, S. I. Borukhov, A. Ya Strongin

Research output: Contribution to journalArticle

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The plasmid pBINSi, containing the promoter, SD and leader peptide sequences of Bacillusamyloliquefaciens α-amylase gene and 267 bp long sequence coding for human proinsulin directs the efficient synthesis of hybrid preproinsulin, as well as quantitative secretion of proinsulin outside of proteasedeficient Bacillussubtilis AJ73 cells. The recombinant proinsulin has been isolated from the culture medium and its N-terminal sequence shown to be identical with that of natural human prohormone.

Original languageEnglish (US)
Pages (from-to)297-301
Number of pages5
JournalBiochemical and Biophysical Research Communications
Issue number1
StatePublished - May 31 1990


All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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