title: [Construction of a temperature inducible shuttle expression vector and its application in Streptomyces].
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.
authors.affiliation: Key Laboratory of Agricultural Microbiology, Ministry of Agriculture, Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Mei-Feng
authors.initials: MF
authors.lastname: Tao
authors.forename: Xiu-Fen
authors.initials: XF
authors.lastname: Zhou
authors.forename: Tobias
authors.initials: T
authors.lastname: Kieser
authors.forename: Zi-Xin
authors.initials: ZX
authors.lastname: Deng
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D015153:Blotting, Western; D003001:Cloning, Molecular; D005822:Genetic Vectors / Q000235:genetics*; D008969:Molecular Sequence Data; D009097:Multienzyme Complexes / Q000235:genetics / Q000378:metabolism; D011994:Recombinant Proteins / Q000235:genetics / Q000378:metabolism; D013302:Streptomyces / Q000201:enzymology / Q000235:genetics*; D013696:Temperature
chemical_list: D009097:Multienzyme Complexes; D011994:Recombinant Proteins