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Analyzing pathogenic mutations of C5 domain from cardiac myosin binding protein C through MD simulations (Articolo in rivista)

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Analyzing pathogenic mutations of C5 domain from cardiac myosin binding protein C through MD simulations (Articolo in rivista) (literal)

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Cecconi, F; Guardiani, C; Livi, R (2008)
Analyzing pathogenic mutations of C5 domain from cardiac myosin binding protein C through MD simulations
in European biophysics journal; Springer, New York (Stati Uniti d'America)
(literal)

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From the issue entitled \"Special Issue on Advanced neutron scattering and complementary techniques to study biological systems. Contributions from the meetings, \"Neutrons in Biology\", STFC Rutherford Appleton Laboratory, Didcot, UK, 11-13 July and \"Proteins At Work 2007\", Perugia, Italy, 28-30 May 2007\". Springer. (literal)

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\"[Cecconi, Fabio] INFM, SMC, I-00185 Rome, Italy; [Cecconi, Fabio] CNR, ISC, I-00185 Rome, Italy; [Guardiani, Carlo; Livi, Roberto] Sez INFN Firenze, Ctr Interdipartimentale Studio Dinam Complesse, Florence, Italy; [Livi, Roberto] Univ Florence, Dipartimento Fis, Florence, Italy; [Livi, Roberto] INFM UdR Firenze, Florence, Italy (literal)

Titolo

Analyzing pathogenic mutations of C5 domain from cardiac myosin binding protein C through MD simulations (literal)

Abstract

The folding properties of wild type and mutants of domain C5 from cardiac myosin binding protein C have been investigated via molecular dynamics simulations within the framework of a native-centric and coarse-grained model. The relevance of a mutation has been assessed through the shift in the unfolding temperature, the change in the unfolding rate it determines and Phi-values analysis. In a previous paper (Guardiani et al. Biophys J 94:1403-1411, 2008), we performed Kinetic simulations on native contact formation revealing an entropy-driven folding pathway originating near the FG and DE loops. This folding mechanism allowed also a possible interpretation of the molecular impact of the three mutations, Arg14His, Arg28His and Asn115Lys involved in the Familial Hypertrophic Cardiomyopathy. Here we extend that analysis by enriching the mutant pool and we identify a correlation between unfolding rates and the number of native contacts retained in the transition state. (literal)

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