tac vs T7 promoter, which is stronger?

Dr. Said Dermime sdermime at rpms.ac.uk
Thu Aug 14 04:21:05 EST 1997

Dear All,
Both tac and T7 are considered 'strong' promoters which are frequently
used for expression of heterologous proteins in E. coli. Has anybody
done quantitative work on the relative strength of these two using a
reporter gene? If yes then could you point me towards the paper, please.

Armin Sepp
asepp at rpms.ac.uk

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