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BL21 Expression - Transformation in BL21 (Sep/08/2008 )

Can any help me to find BL21 mutant strains (C41 or C43). I would like to know if anyone has this strain.
I would be thankful if they could help me in providing it.


I would look in the literature. If somebody published with that strain, they should be required to provide it if someone asks for it.


Where are you?