摘要:
A method for producing catalytic antibodies to proteins and peptides, in particular to gp120, using animals having spontaneous and induced autoimmune pathologies. The method makes it possible to create a catalytic vaccine which can when injected to a patient to exhibits adhesive properties in relation to antigen simultaneously with a destructive function, thereby suspending the progression of disease. The method for the autoimmunisation of animal lines SJL by fused proteins containing classical peptide epitope which develops pathology of an animal by protein fragments gp120 accompanied with an interest target catalytic antibody is disclosed. Also the method for immunising autoimmune animals by highly reactive chemical compositions which can perform a covalent selection of catalytic clones containing peptide fragments of potential resected portions gp120 is disclosed.
摘要:
A method for increasing the rate of chemical reactions involving the conversion of at least one reactant to at least one product involves contacting the reactant with an appropriate monoclonal antibody under conditions permitting the formation of a complex between the antibody and the reactant. The complexed reactant is converted to the product which is then released from the complex. The monoclonal antibody may employ a cofactor and may be directed to a known substrate of an enzyme. Methods for preparing such monoclonal antibodies are also disclosed.
摘要:
The present invention relates to expression and assembly of foreign multimeric proteins—e.g., antibodies—in plants, as well as to transgenic plants that express such proteins. In one of several preferred embodiments, the generation and assembly of functional secretory antibodies in plants is disclosed. The invention also discloses compositions produced by the transgenic plants of the present invention and methods of using same.
摘要:
The present invention provides a recombinant catalytic polypeptide for cleaving a target protein, the nucleic acid encoding the recombinant catalytic polypeptide, a cell hosting the nucleic acid encoding the recombinant catalytic polypeptide, and a non-human transgenic mammal that is capable of producing a heterologous antibody with proteolytic activity. The invention also provides methods of cleaving a target protein using the recombinant catalytic polypeptides both in vitro and in vivo. The invention further provides a library of recombinant catalytic polypeptides with altered enzymatic activity and a method to alter enzymatic activity of the recombinant catalytic polypeptides.
摘要:
A process for producing an antibody enzyme which involves an antibody structure analysis step of confirming the presence of a catalyst triplet residue structure wherein a serine residue, an aspartate residue and a histidine residue or a glutamate residue are located stereostructurally close to each other in the stereostructure of an antibldy anticipated based on its amino acid sequence. Since the above-described catalyst triplet residue structure is a structure specific to an antibody enzyme, an antibody enzyme can be efficiently screened by using the same. Examples of the antibody enzyme as described above include an antibody enzyme against Helicobacter pylori urease and an antibody enzyme against chemokine receptor CCR-5.
摘要:
The present invention relates generally to a growth factor precursor and its use to select production of antigen specific catalytic antibodies. Such catalytic antibodies are produced following B cell activation and proliferation induced by catalytic cleavage products of a target antigen portion of the growth factor precursor of the present invention. A particularly useful form of the growth factor precursor is as a nucleic acid vaccine. The nucleic acid vaccine of the present invention preferably further comprises a molecular adjuvant. Another aspect of the present invention comprises a growth factor precursor in multimeric form. The growth factor precursor of the present invention is useful for generating catalytic antibodies for both therapeutic, diagnostic and industrial purposes.
摘要:
Catalytic antibodies, including 38C2 and 33F12, are capable of efficiently catalyzing a wide variety of ketone-ketone, ketone-aldehyde, aldehyde-ketone, and aldehyde-aldehyde intermolecular aldol reactions, and in some cases to catalyze their subsequent dehydration to yield aldol condensation products. A number of intramolecular aldol reactions have also been defined. Catalysis of all intramolecular aldol reactions examined yields the corresponding condensation products.
摘要:
Disclosed are antibodies which catalyze hydrolysis of &bgr;-amyloid. Antibodies generated are characterized by the amide linkage which they hydrolyze. Methods of generating the antibodies by using &bgr;-amyloid peptides which incorporate transition state analogs are also provided. Also disclosed is a vectorized antibody which is characterized by the ability to cross the blood brain barrier, and is further characterized by the ability to catalyze the hydrolysis of &bgr;-amyloid. The vectorized antibody can take the form of a bispecific antibody, which has a first specificity for the transferrin receptor and a second specificity for a transition state adopted by &bgr;-amyloid during hydrolysis.
摘要:
Catalytic monoclonal antibodies (abzymes) with selective protease activity in the pathologies characterized by the presence of plaques and fibrillar aggregates with protein component; methods for the preparation thereof and the use thereof as medicaments in the treatment of pathologies such as Alzheimer's disease, amyloidosis, atherosclerosis, prions diseases.