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  • FAQ: Can the NEB Express Competent E.coli (High Efficiency) be used for the expression of constructs containing a T7 promoter?

    No. NEB Express Competent E.coli do not support the expression of constructs containing a T7 promoter. For the expression of those constructs we recommend T7 Express Competent E.coli (High Efficiency) (NEB #C2566).