摘要:
The invention relates to transport systems for molecular substances, comprising a mosaic of recombinant partial units (individual components). The invention further relates to production of the molecular transport system and use thereof.
摘要:
The present invention concerns a process for the isolation of recombinant IgA protease from inclusion bodies. In addition a recombinant DNA is claimed which codes for an IgA protease whose C-terminal helper sequence and preferably also its N-terminal signal sequence is no longer active.
摘要:
A process for the activation of disulphide linked recombinant proteins expressed in prokaryotes is described. The process includes cell digestion, solubilization under denaturing and reducing conditions and activation under oxidizing conditions in the presence of GSH/GSSG and a non-denaturing amount of a denaturing agent.
摘要:
The present invention provides a process for the renaturation of denatured proteins in solution in a renaturation buffer, wherein a solution is prepared of the protein to be renatured in the critical concentration in a selected buffer and, after formation of the folding intermediate, further protein to be renatured is added in the amount necessary for the achievement of the critical concentration.
摘要:
The invention relates to modified proteins of the superfamily of “ubiquitin-like proteins”, proteins that have a ubiquitin-like fold and fragments or fusion proteins thereof. As a result of said modification, the proteins have a binding affinity with respect to a predetermined binding partner that did not exist previously. The invention also relates to a method for the production and utilization of said proteins.
摘要:
The invention relates to a method for producing biologically active β-NGF from the proform proNGF. After expressing the proform of the β-NGF in a prokaryotic host cell, the recombinant protein is isolated in the form of insoluble inactive aggregates (inclusion bodies). After the solubilization thereof in a strong denaturing agent and the subsequent conversion thereof into the natural conformation, which is determined by the disulfide bridges present in the natural β-NGF, biologically active β-NGF is obtained by subsequently splitting-off the prosequence.
摘要:
The invention relates to a method for producing biologically active β-NGF from the proform proNGF. After expressing the proform of the β-NGF in a prokaryotic host cell, the recombinant protein is isolated in the form of insoluble inactive aggregates (inclusion bodies). After the solubilization thereof in a strong denaturing agent and the subsequent conversion thereof into the natural conformation, which is determined by the disulfide bridges present in the natural β-NGF, biologically active β-NGF is obtained by subsequently splitting-off the prosequence.
摘要:
The present invention relates to a method for the synthesis of peptides, peptide mimetics and/or proteins and/or for the selective N-terminal modification of peptides, peptide mimetics and/or proteins, with the steps of: a) providing an amino component, said amino component having at least one amino acid, b) providing a carboxyl component, said carboxyl component having a leaving group on the carboxyl group, and said carboxyl component being a compound having at least one amino acid or a compound having at least one label or reporter group, c) reacting said amino component and said carboxyl component in a reaction medium which has one or more ionic liquids, in the presence of a protease, peptidase and/or hydrolase, to form a peptide bond between the amino component and the carboxyl component with elimination of the leaving group.
摘要:
The invention concerns a process for the reactivation of denatured protein, in which the protein is incubated with a solution of Tris base or/and a salt of Tris at a concentration of at least 400 mmol/l and at a pH at which the protein to be treated can take up its native conformation.
摘要:
A process for the activation of recombinant proteins which are present in at least a partially inactive form in which a protein is activated by known solubilization or/and renaturation techniques, said protein having additional helper sequences 2 to 50 amino acids in length at its N- or/and C-terminus whereby the relative hydrophobicity of these helper sequences which is calculated as the sum of the relative hydrophobicity specified in Table 1 for the individual amino acids has a negative numerical value.