RRC ID 33445
Author Wyckoff E, Sampson L, Hayden M, Parr R, Huang WM, Casjens S.
Title Plasmid vectors useful in the study of translation initiation signals.
Journal Gene
Abstract The construction and characterization of plasmid vectors useful in the analysis of translation initiation signals in Escherichia coli and in the construction of lacZ gene hybrids are described. Transcription on the vectors proceeds from a cAMP-independent lac promoter through several restriction sites into a truncated lacZ structural gene lacking its first eight codons. Because this gene has no translation initiation signal, its level of expression is extremely low. A DNA fragment containing a translation start signal can be inserted between the promoter and truncated lacZ gene to produce a hybrid protein with functional beta-galactosidase activity. The vectors described here differ in sequence between the EcoRI cloning site and the lacZ gene to allow easy, in-frame joining of DNA containing a translation initiation signal to the lacZ gene. Cells containing plasmids can be screened directly for in-frame inserts by colony color on indicator plates.
Volume 43(3)
Pages 281-6
Published 1986-1-1
DOI 10.1016/0378-1119(86)90217-9
PII 0378-1119(86)90217-9
PMID 3091457
MeSH Genetic Vectors* Lac Operon Peptide Chain Initiation, Translational* Plasmids Promoter Regions, Genetic beta-Galactosidase / genetics
IF 2.984
Times Cited 11
WOS Category GENETICS & HEREDITY
Resource
Prokaryotes E. coli pTSV-1 pTSV-2a pTSV-2b pTSV-3a pTSV-3b