Our faculty presently consists of two associate professors, Cristian Micheletti (head) and Alessandro Laio (deputy head), one tenure-track scientist, Giovanni Bussi and one co-opted assistant professor, Alessandra Magistrato from CNR who is responsible for the Biophysics research line of the CNR-IOM Democritos Center for Atomistic Simulations in Trieste.
Main research lines in the Molecular and Statistical Biophysics Group are:
(1) Characterising the effect of spatial confinement on the structural, topological and mechanical properties of biopolymers, particularly DNA. (PI: Prof. C. Micheletti)
(2) Elucidating the relationship between structure and function in proteins and enzymes. (PI: Prof. C. Micheletti)
(3) Simulating rare events in biological systems (PI: Prof. A. Laio) Hide
In our group we work at improving techniques for simulating rare events, in
order to make them suitable for studying realistic processes. Particular
attention is devoted to
metadynamics , an
algorithm that has been successfully applied in several different
fields, ranging from chemistry to crystal structure prediction to
biophysics. We are presently applying this methodology for complex
transitions in biomolecules. In these cases the number of "interesting"
variables that one has to sample and explore is intrinsically very
large. This has led to develop a new method,
bias-exchange metadynamics,
that allows the simultaneous reconstruction of a free energy in several variables.
his approach allows predicting the folded state and the folding time of
small proteins (up to 40 amino acids) described with an accurate
potential, in which the water is described explicitly (see Foding
for more
details). The same approach can be used for studying, also with a very
accurate potential, the binding process of drugs to their target
protein, predicting with great accuracy the binding affinity (see
Docking for
more details). (Picture taken from: J. Am. Chem. Soc., 2009, 131 (33), pp 11811-11818)
(4) Molecular Mechanisms of Diseases and Drugs (
PI: Dr. A. Magistrato)
(5) Enzymatic and biomimetic catalysis (
PI: Dr. A. Magistrato)
(6) Simulation of small ribonucleic acid (RNA) (
PI: Dr. G. Bussi)
(7)
PLUMED Development (
PI: Dr. G. Bussi)