Hi, I will be very appreciated if someone can point out some references for the studies on the Pro--Xaa--Pro conformations, where Xaa is a regular amino acid. Both the theoretical and experimental results are welcome. Thank you in advance! ------------------ Shi-Yi Yue, Ph.D. Biotechnology Research Institute | Phone: (514) 496-6338 6100 Royalmount Avenue | Fax: (514) 496-6232 Montreal Quebec Canada H4P 2R2 | E-mail: shiyi ( ( at ) ) bri.nrc.ca