Compositions containing plant-produced glycopolypeptide multimer

Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Blood proteins or globulins – e.g. – proteoglycans – platelet...

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5303871, 5303881, 424 858, 424 8591, 435 696, 435 7021, 4351722, 4351723, 43524027, 4352523, 4353201, 935 93, 935100, 935104, 935107, C07K 1528, A61K 39395, C12N 1513

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052024229

ABSTRACT:
The present invention contemplates glycopolypeptide multimers having a polypeptide that contain an immunoglobulin amino acid residue sequence and an oligosaccharide that comprises a core pentasaccharide and N-acetylglucosamine-containing outer branches, such that the multimer is free from sialic acid. The production of passive immunity in an animal by administering a sialic acid free glycopolypeptide multimer is also contemplated. In addition, the invention describes a method for producing a glycopolypeptide multimer by introducing first and second mammalian genes encoding the constituent parts of the multimer into first and second respective members of a plant species, generating a progeny from the first and second plant species members, and isolating the glycopolypeptide multimer from the progeny plant.

REFERENCES:
patent: 4762785 (1988-08-01), Comai
patent: 4771002 (1988-09-01), Gelvin
patent: 4956282 (1990-09-01), Goodman et al.
During, et al., Plant Molecular Biology, 15: 281-293, "Synthesis and Self-Assembly of a Functional Monoclonal Antibody in Transgenic Nicotiana tabacum", (1990).
Azipurua et al., J. Exp. Med., 167:440-451 (1988).
Hiatt et al. "Production of Antibodies in Transgenic Plants", Nature 343:76-78, Nov. 2, 1989.
Thorens et al., "Chloroquine and Ammonium Chloride Prevent Terminal Glycosylation of Immunoglobulins in Plasma Cells Without Affecting Secretion", Nature 321:618-620, 1986.
Edelman et al., "The Covalent Structure of an Entire .gamma.G Immunoglobulin Molecule", Proc. Nat. Acad. Sci. USA 63:78-85, 1969.

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