Specific-purpose plasmid cloning vectors. II. Broad host range, high copy number, RSF1010-derived vectors, and a host-vector system for gene cloning in Pseudomonas

Gene. 1981 Dec;16(1-3):237-47. doi: 10.1016/0378-1119(81)90080-9.


Host-vector systems have been developed for gene cloning in the metabolically versatile bacterial genus Pseudomonas. They comprise restriction-negative host strains of Pseudomonas aeruginosa and P. putida and new cloning vectors derived from the high-copy-number, broad-host-range plasmid RSF1010, which are stably maintained in a wide range of Gram-negative bacteria. These plasmids contain EcoRI, SstI, HindIII, XmaI, XhoI, SalI, BamHI, and ClaI insertion sites. All cloning sites, except for BamHI and ClaI, are located within antibiotic-resistance genes' insertional inactivation of these genes during hybrid plasmid formation provides a readily scored phenotypic change for the rapid identification of bacterial clones carrying such hybrids. One of the new vector plasmids is a cosmid that may be used for the selective cloning of large DNA fragments by in vitro lambda packaging. An analogous series of vectors that are defective in their plasmid-mobilization function, and that exhibit a degree of biological containment comparable to that of current Escherichia coli vector plasmids, are also described.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacteriophage lambda / genetics*
  • Base Sequence
  • Cloning, Molecular*
  • Conjugation, Genetic
  • DNA Restriction Enzymes
  • DNA, Bacterial / metabolism
  • Genetic Vectors*
  • Plasmids*
  • Pseudomonas / genetics*
  • RNA Polymerase I / metabolism


  • DNA, Bacterial
  • RNA Polymerase I
  • DNA Restriction Enzymes