摘要:
We discovered that a biosynthetic polypeptide, consisting of at least about 50 proline (Pro) and alanine (Ala) amino acid residues, forms a random coil, and increases the stability of other compounds to which it is conjugated, such as small molecules and polypeptides. We describe such biosynthetic polypeptides, constructs containing such polypeptides, ways of making them, and their use.
摘要:
It has previously been shown that bivalent antibodies to insulin can mimic the action of insulin in vivo. However antibodies in vivo were believed to have the opposite effect. It has now been found that the administration to vertebrates of certain specific anti-hormone antibodies, preferably monoclonal antibodies, with or without administration of the hormone itself, can potentiate the biological action of the hormone. Active immunisation with a fragment of the hormone can also be carried out. Such methods can be used therapeutically or alternatively to increase the response of the vertebrate to the hormone beyond normal physiological levels. When the hormone is growth hormone, accelerated growth of economically important animals can be achieved.
摘要:
Disclosed herein are non-natural amino acids and polypeptides that include at least one non-natural amino acid, and methods for making such non-natural amino acids and polypeptides. The non-natural amino acids, by themselves or as a part of a polypeptide, can include a phenazine or quinoxaline substituent. Also disclosed herein are non-natural amino acid polypeptides that are further modified post-translationally, methods for effecting such modifications, and methods for purifying such polypeptides.
摘要:
The invention relates to a method for the production of recombinant peptides by fedbatch cultivation of a microorganism in a bioreactor containing a medium comprising organic carbon source, nitrogen source and mineral salts. The cultivation is carried out by the addition of the organic carbon source by oscillation feed and/or by oscillation variation of stirring speed, e.g. in a square or sinus wave pattern. Preferably the organic carbon source is glucose and the recombinant peptide is growth hormone.
摘要:
A membrane filter of 0.025 to 0.05 µm pore size is previously treated by passing a solution of a water-soluble high molecular substance such as albumin, dextran,polyvinylpyrrolidone, polyethyleneglycol, gelatin or the like through the filter. Employing the filter thus treated, a solution of human growth hormone (HGH) is filtered at high recovery rate of HGH activity to remove Creutzfeldt-Jacob disease pathogen which may exist in HGH preparations.
摘要:
We discovered that a biosynthetic polypeptide, consisting of at least about 50 proline (Pro) and alanine (Ala) amino acid residues, forms a random coil, and increases the stability of other compounds to which it is conjugated, such as small molecules and polypeptides. We describe such biosynthetic polypeptides, constructs containing such polypeptides, ways of making them, and their use.
摘要:
A membrane filter of 0.025 to 0.05 mu m pore size is previously treated by passing a solution of a water-soluble high molecular substance such as albumin, dextran,polyvinylpyrrolidone, polyethyleneglycol, gelatin or the like through the filter. Employing the filter thus treated, a solution of human growth hormone (HGH) is filtered at high recovery rate of HGH activity to remove Creutzfeldt-Jacob disease pathogen which may exist in HGH preparations.
摘要:
A membrane filter of 0.025 to 0.05 µm pore size is previously treated by passing a solution of a water-soluble high molecular substance such as albumin, dextran,polyvinylpyrrolidone, polyethyleneglycol, gelatin or the like through the filter. Employing the filter thus treated, a solution of human growth hormone (HGH) is filtered at high recovery rate of HGH activity to remove Creutzfeldt-Jacob disease pathogen which may exist in HGH preparations.