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BUN21/pML300 (recipient strain)
(Bacterial strain #11675)

No maps are available for this item.

Full plasmid sequence is not available for this item.


Item Catalog # Description Quantity Price (USD)
Bacterial Strain 11675 Bacteria in agar stab 1 $75

This material is available to academics and nonprofits only.


Growth in Bacteria

  • Bacterial Resistance(s)
  • Growth Temperature
  • Growth Strain(s)
    See comments.
  • Growth instructions
    Grow at 30'C. This plasmid contains a temperature sensitive mutant derivative of the pSC101 origin and will not replicate when bacteria are grown at 42'C.
  • Copy number
    Low Copy


  • Gene/Insert name
    Red-alpha, Red-beta, Gam
  • Species
    Bacteriophage lambda

Cloning Information

Resource Information

  • Supplemental Documents
  • Terms and Licenses
  • Industry Terms
    • Not Available to Industry

Depositor Comments

pML300 carries the genes encoding the exo, beta, and gam recombination functions of bacteriophage lambda, as well as RecA, to render an E. coli strain recombination proficient. The lambda Red-alpha, Red-beta, and Gam proteins are under the rhaB promoter, induced by incubation with the sugar rhamnose. The bacterial strain is BW28705I (BUN21)/pML300 (recipient strain): lacIq rrnB3 delta-lacZ4787 hsdR514 delta-(araBAD)567 delta-(rhaBAD)568 galU95 delta-endA9::FRT delta-recA635::FRT umuC::ParaBAD-I-SceI-FRT + pML300(PrhaB-gam-beta-exo Ts(ori). Grow at 30'C in LB/Sp 50 ug/ml (spectinomycin resistant).

How to cite this plasmid ( Back to top)

These plasmids were created by your colleagues. Please acknowledge the Principal Investigator, cite the article in which the plasmids were described, and include Addgene in the Materials and Methods of your future publications.

  • For your Materials & Methods section:

    BUN21/pML300 (recipient strain) was a gift from Stephen Elledge (Addgene plasmid # 11675)
  • For your References section:

    A lentiviral microRNA-based system for single-copy polymerase II-regulated RNA interference in mammalian cells. Stegmeier F, Hu G, Rickles RJ, Hannon GJ, Elledge SJ. Proc Natl Acad Sci U S A. 2005 Sep 13. 102(37):13212-7. 10.1073/pnas.0506306102 PubMed 16141338