TCEP-based rSDS–PAGE AND nLC–ESI-LTQ-MS/MS for oxaliplatin metalloproteomic analysis

In this work, the reactivity of the citostatic drugs such as oxaliplatin, cisplatin and carboplatin towards proteins and the stability of Pt–protein complexes along their storage were evaluated. Neither native-PAGE nor nrSDS–PAGE seems to be suitable for the separation of carboplatin-binding proteins. A reducing electrophoretic separation procedure able to maintain the integrity of oxaliplatin–protein complexes has been developed. The method is...