Download MendeleyPlatinated oligomers of bovine pancreatic ribonuclease: Structure and stability.
Picone, D., Donnarumma, F., Ferraro, G., Russo Krauss, I., Fagagnini, A., Gotte, G., Merlino, A.(2015) J Inorg Biochem 146: 37-43
- PubMed: 25756333
- DOI: https://doi.org/10.1016/j.jinorgbio.2015.02.011
- Primary Citation of Related Structures:
4RTE - PubMed Abstract:
The reaction between cis-diamminedichloroplatinum(II) (CDDP), cisplatin, a common anticancer drug, and bovine pancreatic ribonuclease (RNase A), induces extensive protein aggregation, leading to the formation of one dimer, one trimer and higher oligomers whose yields depend on cisplatin/protein ratio. Structural and functional properties of the purified platinated species, together with their spontaneous dissociation and thermally induced denaturation, have been characterized. Platinated species preserve a significant, although reduced, ribonuclease activity. The high resistance of the dimers against dissociation and the different thermal unfolding profiles suggest a quaternary structure different from those of the well-known swapped dimers of RNase A.
Organizational Affiliation:
Department of Chemical Sciences, University of Naples Federico II, Via Cintia, I-80126 Naples, Italy. Electronic address: delia.picone@unina.it.
