title: pTRIPLEscript: a novel cloning vector for generating in vitro transcripts from tandem promoters for SP6, T7 and T3 RNA polymerase.
abstract: We have constructed a family of novel in vitro transcription vectors in which functional T3, T7 and SP6 RNA polymerase promoters are arranged in tandem and directed towards a multiple cloning site. This prototype vector, named pTRIPLEscript, permits the transcription of one strand of a DNA insert by any of the three commonly used bacteriophage RNA polymerases with no apparent cross talk, i.e., use of the wrong promoter sequence. The vector has two main uses: (i) to clone probe sequences that will be distributed to many laboratories, allowing the use of the most convenient RNA polymerase; and (ii) to circumvent the problem of RNA polymerase-dependent premature termination.
authors.forename: J W
authors.initials: JW
authors.lastname: Meador
authors.forename: H E
authors.initials: HE
authors.lastname: McElroy
authors.forename: B L
authors.initials: BL
authors.lastname: Pasloske
authors.forename: S C
authors.initials: SC
authors.lastname: Milburn
authors.forename: M M
authors.initials: MM
authors.lastname: Winkler
mesh_terms: D001483:Base Sequence; D003001:Cloning, Molecular; D012321:DNA-Directed RNA Polymerases / Q000235:genetics*; D005822:Genetic Vectors; D008969:Molecular Sequence Data; D011401:Promoter Regions, Genetic; D014158:Transcription, Genetic; D014764:Viral Proteins
chemical_list: D014764:Viral Proteins; C070852:RNA polymerase SP6; C081591:bacteriophage T3 RNA polymerase; C062210:bacteriophage T7 RNA polymerase; D012321:DNA-Directed RNA Polymerases