| pubmed-article:20305285 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:20305285 | lifeskim:mentions | umls-concept:C0024660 | lld:lifeskim |
| pubmed-article:20305285 | lifeskim:mentions | umls-concept:C0230463 | lld:lifeskim |
| pubmed-article:20305285 | lifeskim:mentions | umls-concept:C0033684 | lld:lifeskim |
| pubmed-article:20305285 | lifeskim:mentions | umls-concept:C1514559 | lld:lifeskim |
| pubmed-article:20305285 | lifeskim:mentions | umls-concept:C1704259 | lld:lifeskim |
| pubmed-article:20305285 | lifeskim:mentions | umls-concept:C1705987 | lld:lifeskim |
| pubmed-article:20305285 | lifeskim:mentions | umls-concept:C0872366 | lld:lifeskim |
| pubmed-article:20305285 | pubmed:issue | 21 | lld:pubmed |
| pubmed-article:20305285 | pubmed:dateCreated | 2010-5-17 | lld:pubmed |
| pubmed-article:20305285 | pubmed:abstractText | Many therapeutic proteins are glycosylated and require terminal sialylation to attain full biological activity. Current manufacturing methods based on mammalian cell culture allow only limited control of this important posttranslational modification, which may lead to the generation of products with low efficacy. Here we report in vivo protein sialylation in plants, which have been shown to be well suited for the efficient generation of complex mammalian glycoproteins. This was achieved by the introduction of an entire mammalian biosynthetic pathway in Nicotiana benthamiana, comprising the coordinated expression of the genes for (i) biosynthesis, (ii) activation, (iii) transport, and (iv) transfer of Neu5Ac to terminal galactose. We show the transient overexpression and functional integrity of six mammalian proteins that act at various stages of the biosynthetic pathway and demonstrate their correct subcellular localization. Co-expression of these genes with a therapeutic glycoprotein, a human monoclonal antibody, resulted in quantitative sialylation of the Fc domain. Sialylation was at great uniformity when glycosylation mutants that lack plant-specific N-glycan residues were used as expression hosts. Finally, we demonstrate efficient neutralization activity of the sialylated monoclonal antibody, indicating full functional integrity of the reporter protein. We report for the first time the incorporation of the entire biosynthetic pathway for protein sialylation in a multicellular organism naturally lacking sialylated glycoconjugates. Besides the biotechnological impact of the achievement, this work may serve as a general model for the manipulation of complex traits into plants. | lld:pubmed |
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| pubmed-article:20305285 | pubmed:language | eng | lld:pubmed |
| pubmed-article:20305285 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:20305285 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:20305285 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:20305285 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:20305285 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:20305285 | pubmed:month | May | lld:pubmed |
| pubmed-article:20305285 | pubmed:issn | 1083-351X | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:AltmannFriedr... | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:SteinkellnerH... | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:KunertRenateR | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:StrasserRicha... | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:StadlmannJoha... | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:LeonardRenaud... | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:CastilhoAlexa... | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:QuendlerHerib... | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:PabstMartinM | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:GattingerPiaP | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:JezJakubJ | lld:pubmed |
| pubmed-article:20305285 | pubmed:author | pubmed-author:GrassJosephin... | lld:pubmed |
| pubmed-article:20305285 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:20305285 | pubmed:day | 21 | lld:pubmed |
| pubmed-article:20305285 | pubmed:volume | 285 | lld:pubmed |
| pubmed-article:20305285 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:20305285 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:20305285 | pubmed:pagination | 15923-30 | lld:pubmed |
| pubmed-article:20305285 | pubmed:dateRevised | 2011-4-6 | lld:pubmed |
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| pubmed-article:20305285 | pubmed:meshHeading | pubmed-meshheading:20305285... | lld:pubmed |
| pubmed-article:20305285 | pubmed:meshHeading | pubmed-meshheading:20305285... | lld:pubmed |
| pubmed-article:20305285 | pubmed:meshHeading | pubmed-meshheading:20305285... | lld:pubmed |
| pubmed-article:20305285 | pubmed:meshHeading | pubmed-meshheading:20305285... | lld:pubmed |
| pubmed-article:20305285 | pubmed:meshHeading | pubmed-meshheading:20305285... | lld:pubmed |
| pubmed-article:20305285 | pubmed:year | 2010 | lld:pubmed |
| pubmed-article:20305285 | pubmed:articleTitle | In planta protein sialylation through overexpression of the respective mammalian pathway. | lld:pubmed |
| pubmed-article:20305285 | pubmed:affiliation | Department of Applied Genetics and Cell Biology, University of Natural Resources and Applied Life Sciences, Muthgasse 18, 1190 Vienna, Austria. | lld:pubmed |
| pubmed-article:20305285 | pubmed:publicationType | Journal Article | lld:pubmed |
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