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PRODUCTION OF PROTEINS CARRYING OLIGOMANNOSE OR HUMAN-LIKE GLYCANS IN YEAST AND METHODS USE THEREOF
PRODUCTION OF PROTEINS CARRYING OLIGOMANNOSE OR HUMAN-LIKE GLYCANS IN YEAST AND METHODS USE THEREOF
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机译:酵母中携带寡甘露聚糖或类人聚糖的蛋白质的生产及其使用方法
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摘要
Cell lines having genetically modified glycosylation pathways that allow them to carry out a sequence of enzymatic reactions, which mimic the processing of glycoproteins in humans, have been developed. Recombinant proteins expressed in these engineered hosts yield glycoproteins more similar, if not substantially identical, to their human counterparts. The lower eukaryotes, which ordinarily produce high-mannose containing N-glycans, including unicellular and multicellular fungi are modified to produce O-glycans or other structures along human glycosylation pathways. This is achieved using a combination of engineering and/or selection of strains which: do not express certain enzymes which create the undesirable complex structures characteristic of the fungal glycoproteins, which express exogenous enzymes selected either to have optimal activity under the conditions present in the fungi where activity is desired, or which are targeted to an organelle where optimal activity is achieved, and combinations thereof wherein the genetically engineered eukaryote expresses multiple exogenous enzymes required to produce 'human-like' glycoproteins.
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