Abstract:
PROBLEM TO BE SOLVED: To provide methods and compositions for labeling nucleic acids.SOLUTION: The invention relates to methods for the labeling of nucleic acid polymers in vitro and in vivo. Certain methods are provided that include a [3+2] cycloaddition between a nucleotide analogue incorporated into a nucleic acid polymer and a reagent attached to a label. Other methods are provided that include a Staudinger ligation between a nucleotide analogue incorporated into a nucleic acid polymer and a reagent comprising a substituted triarylphosphine attached to a label. Such methods do not require fixation and denaturation and therefore can be applied to the labeling of nucleic acid polymers in living cells and in organisms.
Abstract:
PROBLEM TO BE SOLVED: To provide methods of remodeling and labeling proteins and antibodies at novel oligosaccharide linkages; and to provide antibodies or proteins linked to modified oligosaccharides.SOLUTION: A step of attaching a modified sugar-containing chemical handle to a GlcNAc residue on a first protein, and a step of mixing the first protein with a reporter molecule, carrier molecule or solid support capable of reacting with the chemical handle are included. The reporter molecule, carrier molecule or solid support attaches to the protein at the chemical handle, thereby forming the glycomodified protein. The first protein is an antibody.
Abstract:
Provided herein are methods, compositions and kits for use in the site-specific labeling of glycoproteins comprising a combination of enzyme-mediated incorporation of modified sugars comprising a chemical handle and cycloaddition chemistry with a labeling molecule comprising a reactive group, a metal ion chelator, and/or a fluorophore.
Abstract:
Methods of using azide-modified biomolecules, such as fatty acids, carbohydrates and lipids, to treat a plant, an insect or an animal infected with a virus or to inhibit infectivity of a virus, such as the human immunodeficiency virus, are provided. Also provided are methods of labeling a virus, such as human immunodeficiency virus, with an azide-modified biomolecule, such as a fatty acid, a carbohydrate, or an isoprenoid lipid. Also, provided are methods of tracking a virus in vivo, with an azide-modified biomolecule, such as a fatty acid, a carbohydrate, or an isoprenoid lipid. The azide-modified biomolecules may be combined with a pharmaceutically acceptable excipient to produce a pharmaceutical composition, optionally containing another anti-viral agent and/or a delivery agent, such as a liposome.
Abstract:
composição farmacêutica compreendendo ácido graxo, carboidrato e lipídio de isoprenoide modificados com azida, uso de tais componentes e método para inibir infectividade de um vírus. a presente invenção refere-se a métodos de uso de biomoléculas modificadas com azida, tais como ácidos graxos, carboidratos e lipídios, para o tratamento de uma planta, um inseto ou um animal infectado com um vírus ou para inibir a infectividade de um vírus, tal como o vírus ou para inibir a infectividade de um vírus, tal como o vírus da imunodeficiência humana, são fornecidos. também são fornecidos métodos para identificar um vírus, tal como o vírus da imunodeficiência humana, com uma biomolécula modificada com azida, tal como um ácido graxo, um carboidrato ou um lipídio de isoprenoide. além disso, são proporcionados métodos para o rastreio de um vírus in vivo com uma biomolécula modificada com azida, tal como um ácido graxo, um carboidrato ou um lipídio de isoprenoide. as biomoléculas modificadas com azida podem ser combinadas com um excipiente farmaceuticamente aceitável para a produção de uma composição farmacêutica contendo, opcionalmente, um outro agente antiviral e/ou um agente de distribuição, tal como um lipossoma.