[Construction of a temperature inducible shuttle expression vector and its application in Streptomyces]

Sheng Wu Gong Cheng Xue Bao. 2002 Jul;18(4):420-3.
[Article in Chinese]

Abstract

pHZ1080, an E. coli-Streptomyces shuttle expression vector was constructed in order to explore the utilization of lambda phage regulated expression elements in Streptomyces. A 2.7 kb polyketide synthase (PKS) gene from Streptomyces sp. FR-008 was inserted into downstream of lambda phage promoter (PR) to give the shuttle plasmid, pHZ1067. The PKS protein was expressed in Streptomyces lividans carrying pHZ1067 in a heat-dependent manner, as it did in E. coli. The PKS protein expressed in both hosts with same molecular weight was detected by SDS-PAGE and Western-blot. The successful heat-induced expression of PKS suggested that pHZ1080 was useful and convenient for heat-induced expression of heterologous genes in both E. coli and Streptomyces.

Publication types

  • English Abstract
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Base Sequence
  • Blotting, Western
  • Cloning, Molecular
  • Genetic Vectors / genetics*
  • Molecular Sequence Data
  • Multienzyme Complexes / genetics
  • Multienzyme Complexes / metabolism
  • Recombinant Proteins / genetics
  • Recombinant Proteins / metabolism
  • Streptomyces / enzymology
  • Streptomyces / genetics*
  • Temperature

Substances

  • Multienzyme Complexes
  • Recombinant Proteins