Plasmids 101: E. coli Strains for Protein Expression
Type
Blog Post
Published
Feb. 10, 2015, 3:06 p.m.
...insoluble, or membrane proteins
T7 Express
IPTG-inducible expression of T7 RNAP from the genome; does not...lysogen/T7 promoter combination is the most popular induction system. The DE3 lysogen expresses T7 RNA polymerase...addition of IPTG. T7 RNAP is then available to transcribe the gene of interest from a T7 promoter on the...BL21 (DE3)
Basic IPTG-inducible strain containing T7 RNAP (DE3)
F- ompT lon hsdSB (rB- mB-) gal dcm (...DE3) pLysS*
Chloramphenicol (pLysS)
pLysS expresses T7 lysozyme to reduce basal expression levels; expression...) pLysE*
Chloramphenicol (pLysE)
pLysE has higher T7 lysozyme expression than pLysS; expression vector...A1
Tetracycline
Arabinose-inducible expression of T7 RNAP; IPTG may still be required for expression
...