Proteins dynamics and ligand migration interplay as studied by computer simulation

PAU ARROYO MAÑEZ; DAMIAN A. BIKIEL; LEONARDO BOECHI; LUCIANA CAPECE; SANTIAGO DI LELLA; DARÍO A. ESTRIN; MARCELO A. MARTI; DIEGO MORENO; ALEJANDRO D. NADRA; ARIEL PETRUK

BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2011 vol. 1814 p. 1054 - 1064

1570-9639

          Since proteins are dynamic systems in living organisms, the employment of methodologies contemplating this crucial characteristic results fundamental to allow revealing several aspects of their function. In this work, we present results obtained using classical mechanical atomistic simulation tools applied to understand the connection between protein dynamics and ligand migration. Firstly, we will present a review of the different sampling schemes used in the last years to obtain both ligand migration pathways and the thermodynamic information associated with the process. In the second place, we will focuse on representative examples in which the schemes previously presented areemployed, concerning: i) ligand migration, tunnels and cavities in myoglobin and neuroglobin, ii) ligand migration in truncated hemoglobin members, iii) NO escape and conformational changes innitrophorins, iv) ligand selectivity in catalase and hydrogenase, and v) larger ligand migration: the P450 and haloalkane dehalogenase cases.