Size (kb): 4.3860001564025880
Vector: pPW121 (plasmid)
Promoters: Promoter lambda PR
Construct size (kb): 4.386000156402588
Features: marker(s): ampR
promoter: lambda PR
repressor gene: cI
vector permitting positive selection for inserts
Restriction digests of the clone give the following sizes (kb): EcoRI--4.3; HindIII--4.3; BamHI--4.3.
Postive selection cloning vector which confers tetR (recommended concentration 10 ug/ml) only when an insert has been successfully cloned into the cI repressor gene.
Plasmid was derived from pUN121 by introduction of a BglII site into the cI gene. Plasmid pUN121 was derived from pTR262 by addition of EcoRI and SmaI/XmaI sites in the cI gene.
Puta F, Wambutt R. Construction of a new Escherichia coli-Saccharomyces cerevisiae shuttle plasmid cloning vector allowing positive selection for cloned fragments. Folia Microbiol. 37: 193-198, 1992. PubMed: 1505881
Nilsson B, et al. An improved positive selection plasmid vector constructed by oligonucleotide mediated mutagenesis. Nucleic Acids Res. 11: 8019-8030, 1983. PubMed: 6316281
Frantisek Puta, personal communication