Sialylation of glycoproteins in plants

The presence of sialic acids (SAs) at the non-reducing terminal of various glycoconjugates plays important roles in the function and half-life of glycoproteins in mammals and many species of microorganisms. It has been previously unknown that plant cells have the capacity to sialylate glycoproteins....

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Bibliographische Detailangaben
Hauptverfasser:	SHAH MITI M, JOSHI LOKESH
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS OR TEST PAPERS THEREFOR COMPOSITIONS THEREOF CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES CULTURE MEDIA ENZYMOLOGY FISHING FORESTRY HUMAN NECESSITIES HUNTING MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING NEW PLANTS OR PROCESSES FOR OBTAINING THEM ORGANIC CHEMISTRY PEPTIDES PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES PROCESSES OF PREPARING SUCH COMPOSITIONS PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS TRAPPING VINEGAR WINE
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Beschreibung
Zusammenfassung:	The presence of sialic acids (SAs) at the non-reducing terminal of various glycoconjugates plays important roles in the function and half-life of glycoproteins in mammals and many species of microorganisms. It has been previously unknown that plant cells have the capacity to sialylate glycoproteins. The present invention discloses the presence of sialylated glycoconjugates and identifies N-acetylneuranminic acid (Neu5Ac) and N-glycolylneuraminic (Neu5Gc) on glycoproteins in suspension-cultured cells of plants, for example, Arabidopsis thaliana (A. thaliana), Nicotiana tabacum (tobacco), and Medicago sativa (alfalfa), extending the complexity of glycan structures known in the plant kingdom. This invention further discloses methods for engineering plants to produce recombinant glcyoproteins.