Secretion of Interferon by Bacillus subtilis

  • Ilkka Palva
  • , Päivi Lehtovaara
  • , Leevi Kääriäinen
  • , Mervi Sibakov
  • , Kari Cantell
  • , Catherine H. Schein
  • , Kiyoko Kashiwagi
  • , Charles Weissmann

Research output: Contribution to journalArticlepeer-review

107 Scopus citations

Abstract

Bacillus subtilis was transformed with a hybrid gene in which the sequence encoding the α-amylase signal peptide was joined by a linker to the sequence encoding mature human interferon α2 (IFN-α2). The hybrid preprotein was cleaved precisely following the last amino acid of the α-amylase signal sequence and was secreted at 0.5-1 mg per liter. IFN-α2, preceded by either one or six amino acids, has the same specific antiviral activity as IFN-α2 itself.

Original languageEnglish (US)
Pages (from-to)229-235
Number of pages7
JournalGene
Volume22
Issue number2-3
DOIs
StatePublished - 1983
Externally publishedYes

Keywords

  • antiviral activity
  • preprotein
  • Recombinant DNA
  • α-amylase signal peptide

ASJC Scopus subject areas

  • Genetics

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