Bacterial Strain JM109(DE3)

Bacterial Strain JM109(DE3), derived from JM109, contains a chromosomal copy of the gene for T7 RNA polymerase.

Description

Bacterial Strain JM109(DE3), derived from JM109, contains a chromosomal copy of the gene for T7 RNA polymerase. JM109(DE3) is used for the high-level expression of genes cloned into vectors for expression of sequence downstream from the T7 promoter, provided that the cloned sequence contains a ribosomal binding site. Please note: JM109(DE3) cannot be used for blue/white selection.

Genotype: endA1, recA1, gyrA96, thi, hsdR17 (rk, mk+), relA1, supE44, λ–, Δ(lac-proAB), [F´, traD36, proAB, lacIqZΔM15], lDE3.

Features – Benefits

  • Contains an IPTG-inducible gene for T7 RNA polymerase
  • Requires a ribosomal binding site with cloned sequence
  • Lacks blue/white cloning selection
Product Size Brand Catalog
Bacterial Strain JM109(DE3) 500ul Promega P9801

Specifications

Product Size Catalog
Bacterial Strain JM109(DE3) 1 × 500μl P980A