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Hi Gareth,
Promega sells BL21s called codon plus
there are two types,one type for GC rich, one type for AT rich genomes

Hope it helps, Ina



Gareth wrote:

> Anyone heard of a bacterial strain that's been enhanced for mammalian
> protein expression with tRNA's more suitable for the human codon
> frequency.
>
> Can't remember the companies name that sells them, but our labs starting
> up some protein expression, and although I've been quite happy with
> BL21's etc in the past. I was wondering if there was anything better out
> there.
>
> Thanks
>
> Gareth Phillips, PhD
> Dept. Pediatrics
> University of Chicago

--
Ina Hinners
ICRF
Secretory Pathways Laboratory
44 Lincolns Inn Fields
WC2A 3PX London
UK
email: I.Hinners at icrf.icnet.uk