SSM

Interactive service for comparing protein structures in 3D. Allows for: comparison of two structures, examination of a structure for similarity with the whole PDB or SCOP archives, best Ca-alignment of compared structures, download and visualization of best-superposed structures using RasMol (Unix/Linux platforms) or RasTop (MS Windows machines), linking the results to other services - OCA, SCOP, GeneCensus, FSSP, 3Dee, CATH, PDBSum, SWISS-PROT and ProtoMap. SSM (Secondary Structure Matching) on homepage for PDBe Fold.