In vivo monitoring of intracellular expression of human interleukin-2 using green fluorescent protein fusion partner in Pichia pastoris

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Abstract

The use of Pichia pastoris for protein production was simplified by creation of fusion proteins containing green fluorescent protein (GFP) and the product of interest. Human interleukin-2 (hIL-2) was used as a model product: GFP enabled clear identification of fusion protein expression and, more importantly, the quantification of hIL-2. Although GFP fusions for bioprocess monitoring have been demonstrated in other hosts, this is its first use in P. pastoris.

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