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[jimmah]

Hi,

I'm designing a new E. coli expression vector at the moment. Does anyone know whether there is a real practical difference (i.e. in transcription levels) between the native T5 promoter and the non-proprietary modified T5 promoter used in the pJexpress vector from DNA 2.0?

FYI:
>T5 promoter


AAATCATAAAAAATTTATTTGCTTTGTGAGCGGATAACAATTATAATAGATTC
>pJexpress T5 promoter
AAATCATGAAAAATTTATTTGCTTTGTGAGCGGATAACAATTATAATA

Cheers

James