heterologous protein expression

schneema at yahoo.com schneema at yahoo.com
Thu Mar 30 10:20:48 EST 2000

Hi all,

we try to express a cysteine-rich protein from human cells
in bacteria.
We do not get clones.
1) Is it true that cysteine-containing proteins are toxic to the
bacterial host cells?
2) Do E. coli make cysteine at all?
3) Is there a chance to get bacteria to make our protein?



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