Download MendeleyThe multiple forms of bovine seminal ribonuclease: Structure and stability of a C-terminal swapped dimer.
Sica, F., Pica, A., Merlino, A., Russo Krauss, I., Ercole, C., Picone, D.(2013) FEBS Lett 587: 3755-3762
- PubMed: 24140346 Search on PubMed
- DOI: https://doi.org/10.1016/j.febslet.2013.10.003
- Primary Citation Related Structures:
4N4C - PubMed Abstract:
Bovine seminal ribonuclease (BS-RNase) acquires an interesting anti-tumor activity associated with the swapping on the N-terminal. The first direct experimental evidence on the formation of a C-terminal swapped dimer (C-dimer) obtained from the monomeric derivative of BS-RNase, although under non-native conditions, is here reported. The X-ray model of this dimer reveals a quaternary structure different from that of the C-dimer of RNase A, due to the presence of three mutations in the hinge peptide 111-116. The mutations increase the hinge peptide flexibility and decrease the stability of the C-dimer against dissociation. The biological implications of the structural data are also discussed.
- Department of Chemical Sciences, University of Naples 'Federico II', via Cintia, 80126 Naples, Italy; Institute of Biostructures and Bioimaging, CNR, Via Mezzocannone 16, 80134 Naples, Italy; National Institute Biostructures and Biosystems, Inter-University Consortium, Viale Medaglie d'Oro 305, I-00136 Rome, Italy.
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