摘要:
The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
摘要:
The invention provides methods for purifying carbohydrates, including oligosaccharides, nucleotide sugars, and related compounds, by use of ultrafiltration, nanofiltration and/or reverse osmosis. The carbohydrates are purified away from undesired contaminants such as compounds present in reaction mixtures following enzymatic synthesis or degradation of oligosaccharides.
摘要:
The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
摘要:
The present invention provides sequon polypeptides with an amino acid sequence including one or more exogenous O-linked glycosylation sequence of the invention. In addition, the present invention provides methods of making polypeptide conjugates as well as methods of using such conjugates and their pharmaceutical compositions. The invention further provides libraries of sequon polypeptides, wherein each member of such library includes at least one exogenous O-linked glycosylation sequence of the invention. Also provided are methods of making and using such libraries.
摘要:
The invention provides methods of removing contaminants from a mixture of a desired product and contaminants by pH adjustments and molecular weight cut-offs. The contaminants include phosphate groups, magnesium sulfate, sodium pyruvate and tetrasodium pyrophosphate groups. The desired product includes nucleotide sugars, glycolipids, LnNT, sialyl lactose, and salts.
摘要:
The present invention provides branched water-soluble polymers that allow two or more water-soluble polymers to be conjugated to another species. The branched polymers provide access to therapeutic agents that are conjugated at a single site to two or more water-soluble polymers. The branched polymers are based upon branch points that are simple branched alkyl structures, reactive side-chain amino acids and small peptides of reactive side-chain amino acids, and saccharides. Also provided is a method for preparing mono-disperse poly(ethylene glycol) of a well-defined and determinable molecular weight, and a method for the rational end-functionalization of poly(ethylene glycol). Conjugates of the branched water-soluble polymers with diverse species, e.g., peptides, lipids, glycolipids and small molecules are also provided.
摘要:
The present invention relates to mutants of Fibroblast Growth Factor (FGF), particularly FGF-20 and FGF-21, which contain newly introduced N-linked or O-linked glycosylation site(s). The polynucleotide coding sequences for the mutants, expression cassettes comprising the coding sequences, cells expressing the mutants, and methods for producing the mutants are also disclosed. Further disclosed are pharmaceutical compositions comprising the mutants and method for using the mutants.
摘要:
The present invention provides glycoconjugates that are formed through the enzymatically-mediated coupling of a glycosyl moiety, e.g., on a peptide or lipid, and a modifying group that includes an acyl group. The conjugates include the modifying group tethered to the glycosyl moiety through a linking moiety that includes an acyl residue. Also provided are methods for preparing the conjugates of the invention
摘要:
The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.
摘要:
The present invention relates to mutants of human growth hormone, which contain newly introduced N-linked or O-linked glycosylation site(s), such that these recombinantly produced polypeptides have glycosylation patterns distinctly different from that of the naturally occurring human growth hormone. The polynucleotide coding sequences for the mutants, expression cassettes comprising the coding sequences, cells expressing the mutants, and methods for producing the mutants are also disclosed. Further disclosed are pharmaceutical compositions comprising the mutants and method for using the mutants.