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Promega Bacterial Strain JM109

Useful host for transformation of pGEM Vectors and production of ssDNA from M18 or phagemid vectors. JM109 is recA- and lacks the E. coli K restriction system. Can be used for blue/white screening.

Supplier:  Promega P9751

Catalog No. PR-P9751

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  • Useful Host for Transforming Plasmids Capable of Blue/White Screening
  • Reliable strain that grows well and is transformed efficiently
  • Useful for cloning, single-stranded DNA production, and blue/white screening
  • Yield and quality of plasmid DNA improved with the endonuclease A- mutation


500 μL


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