RPMS: Ramachandran plot for multiple structures

An interactive internet computing server, RPMS (Ramachandran plot for multiple structures) has been developed to visualize the Ramachandran angles of several highly homologous protein structures in a single plot. Options are provided for users to locate the amino acid residues in various regions of the plot. To perform the above, users need to enter the Protein Data Bank (PDB) identification codes. In addition, users can upload the atomic coordinates from the local machine. A Java graphics interface has been deployed and the server has been interfaced with a locally maintained PDB anonymous FTP server, which is updated weekly. The server RPMS can be accessed through the Bioinformatics web server at http://cluster.physics.iisc.ernet.in/rpms/.