E. coli genotypes

http://openwetware.org/wiki/E._coli_genotypes#DH5.CE.B1

DH5α

F^- endA1 glnV44 thi-1 recA1 relA1 gyrA96 deoR nupG Φ80dlacZΔM15 Δ(lacZYA-argF)U169, hsdR17(r_K^- m_K⁺), λ–

• An Hoffman-Berling 1100 strain derivative (Meselson68)
• Promega also lists phoA
• nalidixic acid resistant
• References:
• FOCUS (1986) 8:2, 9.
• Hanahan, D. (1985) in DNA Cloning: A Practical Approach (Glover, D.M., ed.), Vol. 1, p. 109, IRL Press, McLean, Virginia.
• Grant, S.G.N. et al. (1990) Proc. Natl. Acad. Sci. USA 87: 4645-4649 PMID 2162051.
• Meselson M. and Yuan R. (1968) Nature 217:1110 PMID 4868368.

XL1-Blue 

endA1 gyrA96(nal^R) thi-1 recA1 relA1 lac glnV44 F'[ ::Tn10 proAB⁺ lacI^q Δ(lacZ)M15] hsdR17(r_K^- m_K⁺)

• nalidixic acid resistant
• tetracycline resistant (carried on the F plasmid)