Plasmids 101: E. coli Strains for Protein Expression
Type
Blog Post
...proteolysis of the expressed proteins.
hsdSB (rB- mB-): These strains have an inactivated native restriction... containing T7 RNAP (DE3)
F- ompT lon hsdSB (rB- mB-) gal dcm (DE3)
General protein expression
BL21...p15A origin of replication
F- ompT lon hsdSB (rB- mB-) gal dcm (DE3) pLysS (CamR)
Expression of toxic...p15A origin of replication
F- ompT lon hsdSB (rB- mB-) gal dcm (DE3) pLysE (CamR)
Expression of toxic...longer transcript half-life
F- ompT lon hsdSB (rB- mB-) gal dcm rne131 (DE3)
General expression; not recommended...be required for expression
F- ompT lon hsdSB (rB- mB-) gal dcm araB::T7RNAP-tetA
General protein expression...with repetative sequences.
F- ompT lon hsdSB (rB- mB-) gal dcm (DE3) Δ(srl-recA)306::Tn10 (TetR)
Expression...