Production and secretion of human interleukin 6 into the periplasm of Escherichia coli: efficient processing of N-terminal variants of hIL6 by the E. coli signal peptidase.

Abstract excerpt

We have developed a system for expressing human interleukin 6 into the periplasmic space of Escherichia coli. The method is based on the expression of the hIL6 gene under the control of the regulatory signals of plasmid pINIII-OMPA3, i.e., lpp-lac promoter and the E. coli OMPA ribosome binding site and leader sequence. Since microheterogeneity is known to occur in the amino end of the cytokine, we tested...

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