申请人:Whitehead Institute for Biomedical Research
公开号:US10556024B2
公开(公告)日:2020-02-11
The present invention, in some aspects, provides methods, reagents, compositions, and kits for the radiolabeling of proteins, for example, of proteins useful for positron emission tomography (PET) or single-photon emission computed tomography (SPECT) (e.g., for diagnostic and therapeutic applications), using sortase-mediated transpeptidation reactions. Some aspects of this invention provide methods for the conjugation of an agent, for example, a radioactive agent or molecule to diagnostic or therapeutic peptides or proteins. Compositions comprising sortagged, radiolabeled proteins as well as reagents for generating radiolalebed proteins are also provided. Kits comprising reagents useful for the generation of radiolabeled proteins are provided, as are precursor proteins that comprise a sortase recognition motif.
本发明在某些方面提供了利用分选酶介导的转肽反应对蛋白质进行放射性标记的方法、试剂、组合物和试剂盒,例如用于正电子发射断层扫描(PET)或单光子发射计算机断层扫描(SPECT)(例如用于诊断和治疗应用)的蛋白质。本发明的某些方面提供了将制剂(例如放射性制剂或分子)与诊断或治疗用肽或蛋白质共轭的方法。本发明还提供了包含分选标记、放射性标记蛋白质的组合物以及生成放射性床蛋白质的试剂。此外,还提供了包含用于生成放射性标记蛋白质的试剂的试剂盒,以及包含分选酶识别基团的前体蛋白质。