title: Construction of a reporter vector system for in vivo analysis of promoter activity in Propionibacterium freudenreichii.
abstract: A beta-galactosidase reporter system for the analysis of promoter elements in Propionibacterium freudenreichii was designed. The pTD210 in vivo reporter vector was constructed using a promoterless lacZ gene from Bifidobacterium longum cloned into the pAMT1 plasmid. The utility of the pTD210 reporter vector was demonstrated by an investigation of six predicted promoters in P. freudenreichii. The system produced accurate and reproducible measurements that facilitated both promoter identification and the quantification of promoter activities.
authors.affiliation: Laboratory of Microbial Gene Technology and Food Microbiology, Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences (UMB), PO Box 5003, N-1432 As, Norway.
authors.forename: Therese
authors.initials: T
authors.lastname: Faye
authors.forename: Anita
authors.initials: A
authors.lastname: Asebø
authors.forename: Zhian
authors.initials: Z
authors.lastname: Salehian
authors.forename: Thor
authors.initials: T
authors.lastname: Langsrud
authors.forename: Ingolf F
authors.initials: IF
authors.lastname: Nes
authors.forename: Dag Anders
authors.initials: DA
authors.lastname: Brede
mesh_terms: D001426:Bacterial Proteins / Q000096:biosynthesis / Q000235:genetics; D001644:Bifidobacterium / Q000201:enzymology / Q000235:genetics; D003001:Cloning, Molecular; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D015964:Gene Expression Regulation, Bacterial; D017930:Genes, Reporter; D005822:Genetic Vectors; D008969:Molecular Sequence Data; D010957:Plasmids; D011401:Promoter Regions, Genetic; D011424:Propionibacterium / Q000235:genetics*; D017422:Sequence Analysis, DNA; D001616:beta-Galactosidase / Q000096:biosynthesis / Q000235:genetics
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D001616:beta-Galactosidase