Hello, A few more recent reviews or especially intriguing publications on the subject: W.F. van Gunsteren and A.E. Mark 'On the interpretation of biochemical data by molecular dynamics computer simulation' Eur. J. Biochem. 204, 947-961 (1992) T. Schlick & W.K. Olson 'Trefoil knotting revealed by molecular dynamics simulations of supercoiled DNA ' Science 257, 1110-1115 (1992) Regards, Max Vasquez