BL21 (DE3) Induction

Zophonias O. Jonsson zjons at
Thu Oct 5 09:12:01 EST 1995

In article <44ukk8$fft at>, mtuvin at (Michael
J. Tuvim) wrote:

> It seems BL21(DE3) really doesn't like chloramphenicol, don't know why.

  The reason is much the same as for any other E. coli strain lacking
chloramphenicol resistance.  The strains BL21(DE3)pLysS and BL21(DE3)pLysE
are on the other hand Chloramphenicol resistant because of the pLys
plasmids they carry.  Not a very big mistery either :-)


Zophonias O. Jonsson
Institut fur Veterinarbiochemie               Tel: (41-1)-257-54-75
Universitat Zurich-Irchel                     Fax: (41-1)-362-05-01
Winterthurerstrasse 190
CH-8057 Zurich

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