Provided herein are charge complementary peptides that can be optionally coupled to a cargo polypeptide that are capable of self-assembling under stimulating conditions. The charge complementary peptides can be capable of forming supramolecular structures. Also provided herein are methods of using the charge complementary peptides provided herein.

Provided herein are charge complementary peptides that can be optionally coupled to a cargo polypeptide that are capable of self-assembling under stimulating conditions. The charge complementary peptides can be capable of forming supramolecular structures. Also provided herein are methods of using the charge complementary peptides provided herein.

The present invention relates to a method for stabilizing protein or peptide comprising formulations, which includes the step of adding selected meglumine salts to protein solutions, especially to solutions of pharmaceutical active proteins. But the present invention also relates to the stabilized composition comprising proteins or peptides and selected meglumine salts. Another objective of the present invention is to provide pharmaceutical compositions comprising antibody molecules stabilized by selected meglumine salts and methods for producing corresponding stabilized pharmaceutical compositions, and kit comprising these compositions.

The present invention relates to a method for stabilizing protein or peptide comprising formulations, which includes the step of adding selected meglumine salts to protein solutions, especially to solutions of pharmaceutical active proteins. But the present invention also relates to the stabilized composition comprising proteins or peptides and selected meglumine salts. Another objective of the present invention is to provide pharmaceutical compositions comprising antibody molecules stabilized by selected meglumine salts and methods for producing corresponding stabilized pharmaceutical compositions, and kit comprising these compositions.

The present invention has an object of shortening the process time and reducing use of a poor solvent for solidifying a carrier (Tag)-peptide component, by removing impurities without conducting solid-liquid separation (condensation, solid-liquid separation and drying operation) of a Tag-peptide component, in an Fmoc method using a Tag for liquid phase peptide synthesis. Provided is the peptide synthesis method that includes the following steps a-d: step a: a carrier-protected amino acid, carrier-protected peptide, or a carrier-protected amino acid amide, and an N-Fmoc-protected amino acid or an N-Fmoc-protected peptide are condensed in an organic solvent or a mixed solution of organic solvents, to obtain an N-Fmoc-carrier-protected peptide, step b: a water-soluble amine is added to the reaction solution after the condensation reaction, step c: the Fmoc group is deprotected from the protected amino group in the presence of a water-soluble amine, and step d: the reaction solution is neutralized by adding an acid, and further, by adding and washing with an acidic aqueous solution, then, by liquid-liquid separation an aqueous layer is removed to obtain an organic layer.

The present invention has an object of shortening the process time and reducing use of a poor solvent for solidifying a carrier (Tag)-peptide component, by removing impurities without conducting solid-liquid separation (condensation, solid-liquid separation and drying operation) of a Tag-peptide component, in an Fmoc method using a Tag for liquid phase peptide synthesis. Provided is the peptide synthesis method that includes the following steps a-d: step a: a carrier-protected amino acid, carrier-protected peptide, or a carrier-protected amino acid amide, and an N-Fmoc-protected amino acid or an N-Fmoc-protected peptide are condensed in an organic solvent or a mixed solution of organic solvents, to obtain an N-Fmoc-carrier-protected peptide, step b: a water-soluble amine is added to the reaction solution after the condensation reaction, step c: the Fmoc group is deprotected from the protected amino group in the presence of a water-soluble amine, and step d: the reaction solution is neutralized by adding an acid, and further, by adding and washing with an acidic aqueous solution, then, by liquid-liquid separation an aqueous layer is removed to obtain an organic layer.

Synthesis of O-benzotriazole and O-imidazole synthons are described. Uses of synthons in synthesis of azapeptides and other peptidomimetics, azapeptides and other peptidomimetics synthesized from the synthons and uses of azapeptides and other peptidomimetics are also described.

The present invention is drawn to, among other things, compositions of matter and methods for producing an aminoacyl-tRNA analogue comprising an adaptor tRNA and modified amino acid for ribosome-directed translation in vitro.

The present invention relates to a method for suppressing aggregation of polypeptide. Specifically, the present invention relates to a method for suppressing, in a solution comprising an antibody or an Fc region-containing protein, formation of an aggregate derived from an antibody or an Fc region-containing protein having a non-native conformation, the method comprising: the steps of (i) binding an AF.2A1 polypeptide or an analog thereof with an aggregate derived from the antibody or Fc region-containing protein having a non-native conformation in the solution; and (ii) collecting the aggregate bound to the polypeptide or analog thereof from the solution.

The present invention relates to a method for suppressing aggregation of polypeptide. Specifically, the present invention relates to a method for suppressing, in a solution comprising an antibody or an Fc region-containing protein, formation of an aggregate derived from an antibody or an Fc region-containing protein having a non-native conformation, the method comprising: the steps of (i) binding an AF.2A1 polypeptide or an analog thereof with an aggregate derived from the antibody or Fc region-containing protein having a non-native conformation in the solution; and (ii) collecting the aggregate bound to the polypeptide or analog thereof from the solution.