Abstract: A composition coupled to an agent with a cleavable linker is provided. Specifically, the composition is used for releasing the agent through a temperature-sensitive mechanism at a targeted location in a subject with heat. It is advantageous to applications where there is a need to accurately deploy an agent in a targeted location to reduce adverse side effects or increase efficacy of the agent. A device and method for providing heat at the targeted location in the subject is also provided. The device and method allows release of the agents in a targeted manner and prevents overheating of the targeted location or the tissue surrounding the targeted location. It is advantageous to applications where there is a need to accurately control the temperature in a targeted location in a biological body, for instance, to deploy an agent in the targeted location.

Abstract: The present invention provides a mutant antibody comprising a reactive site not present in the wild-type of the antibody and a complementarity-determining region that specifically binds to a metal chelate, wherein the reactive site is in a position proximate to or within the complementarity-determining region.

Abstract: The present invention provides a mutant antibody comprising a reactive site not present in the wild-type of the antibody and a complementarity-determining region that specifically binds to a metal chelate, wherein the reactive site is in a position proximate to or within the complementarity-determining region.

Abstract: The present invention provides mutant antibodies with infinite affinity for a target antigen. The antibodies comprise a mutant amino acid at a position within or proximate to a complimentarity determining region of the antibody and a linker covalently bound to the mutant amino acid, the linker comprising a reactive functional group. Subsequent to binding an antigen, the reactive functional group is converted to a covalent bond by reaction with a group of complementary reactivity on the bound antigen. The invention also provides bispecific antibodies with infinite binding affinity that comprise a second domain that specifically binds a metal chelate. The invention further provides methods of using such antibodies to diagnose and treat diseases and conditions.

Abstract: The present invention provides compositions and methods for detecting, analyzing, and identifying biomolecules. More particularly, the invention provides Element Coded Affinity Tags comprising a metal chelate and a metal ion and methods of using the tags to detect, analyze, and identify biomolecules including polypeptides, nucleic acids, lipids, and polysaccharides.

Abstract: The present invention provides compositions and methods for detecting, analyzing, and identifying biomolecules. More particularly, the invention provides Element Coded Affinity Tags comprising a metal chelate and a metal ion and methods of using the tags to detect, analyze, and identify biomolecules including polypeptides, nucleic acids, lipids, and polysaccharides.

Abstract: The present invention provides antibodies comprising an antigen recognition domain that specifically binds to a metal chelate: mutant antibodies comprising a reactive site not present in the wild-type of the antibody, wherein the reactive site is in a position proximate to or within the antigen recognition domain; and methods of using such antibodies to diagnose and treat disease.

Abstract: A method and system for localizing a diagnostic or therapeutic agent to an internal target site. The system includes (1) an epitopic compound, (2) a binding protein which is effective to bind specifically with the compound and capable of localizing selectively at the target tissue, when administered parenterally, and (3) a clearing agent which can bind to and cross-link the binding protein, to form a protein aggregate which is readily cleared from the subject's bloodstream. In practicing the method of the invention, the binding protein is administered to the subject parenterally, and allowed to localize at the target site, typically within 1-4 days. This is followed by a chase with the clearing agent to remove circulating, but not target-localized binding protein. When the epitopic compound is administered, binding of the compound to the localized binding protein, and rapid clearance of unbound compound by the kidneys, results in selective localization of the compound at the target site.