| 摘要 |
The metal chelating peptide (MCP) has a C-terminus which may be structured to provide a variety of means for unidirectional coupling to a targeting agent such as an antibody. The MCP has a branched portion at its other end which contains a plurality of metal chelating sites. The number of metal chelating sites may be quite large (in excess of 16). The MCP of the invention affords the ability to deliver a concentrated radionuclide mass to a target cell by coupling the MCP to a targeting agent.
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