Bacterial expression of G-protein-coupled receptors: prediction of expression levels from sequence.

Abstract excerpt

Eleven G-protein-coupled receptors were expressed in Escherichia coli as fusion proteins with N-terminal glutathione-S-transferase and a C-terminal (His)6 tag. Expression levels varied between 0.1% and 10% of the total cellular protein. Low expression levels, as quantified by analytical nickel chelating chromatography, coincided with a toxic effect of protein expression. Multiple linear regression analysis was...

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