Total number of structures available in the PDB: 81,553 Last update from RCSB-PDB on May 17, 2012 Developed, maintained & hosted by K. Gopalakrishnan, S.S. Sheik and K. Sekar Bioinformatics Centre (Centre of Excellence in Structural Biology and Bio-computing) Indian Institute of Science Bangalore - 560 012 India About Ramachandran Plot Please send your comments & suggestions to Dr. K. Sekar at sekar@physics.iisc.ernet.in © Bioinformatics Centre, IISc, Bangalore - 560 012, India.