Reference: Zhang X, et al. (1997) [Erythropoietin gene cloning and expression in S. cerevisiae]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 19(5):389-94

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Abstract


Mature human erythropoietin gene was amplified from EPO cDNA by PCR methods. The PCR product was cloned into pUC18 plasmid at Sma I site, then precisely engineered into a intermidiate vector pSK43SB which were digested with Hind III, Mung bean nuclease, and Sal I. Then degest pSK43SB-EPO plasmid with EcoR I and Cla I, the EC fragment with an alpha-factor leading sequence, EPO gene and CYC1 terminater were produced. It was then cloned into a typical high efficiency episomal expression vector YEpHC8. Human EPO protein with highly mannose glycosylated was identified by Western blot methods in both secreted and in cells proteins. N-Glycosidase F digested secreted EPO can produce 20,000 EPO without N-glycosylation similar with that produced in cells.

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Journal Article
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Zhang X, Huang B, Cai L
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