title: fastSCOP: a fast web server for recognizing protein structural domains and SCOP superfamilies.
abstract: The fastSCOP is a web server that rapidly identifies the structural domains and determines the evolutionary superfamilies of a query protein structure. This server uses 3D-BLAST to scan quickly a large structural classification database (SCOP1.71 with <95% identity with each other) and the top 10 hit domains, which have different superfamily classifications, are obtained from the hit lists. MAMMOTH, a detailed structural alignment tool, is adopted to align these top 10 structures to refine domain boundaries and to identify evolutionary superfamilies. Our previous works demonstrated that 3D-BLAST is as fast as BLAST, and has the characteristics of BLAST (e.g. a robust statistical basis, effective search and reliable database search capabilities) in large structural database searches based on a structural alphabet database and a structural alphabet substitution matrix. The classification accuracy of this server is approximately 98% for 586 query structures and the average execution time is approximately 5. This server was also evaluated on 8700 structures, which have no annotations in the SCOP; the server can automatically assign 7311 (84%) proteins (9420 domains) to the SCOP superfamilies in 9.6 h. These results suggest that the fastSCOP is robust and can be a useful server for recognizing the evolutionary classifications and the protein functions of novel structures. The server is accessible at http://fastSCOP.life.nctu.edu.tw.
authors.affiliation: Institute of Bioinformatics, National Chiao Tung University, Hsinchu, 30050 Taiwan.
authors.forename: Chi-Hua
authors.initials: CH
authors.lastname: Tung
authors.forename: Jinn-Moon
authors.initials: JM
authors.lastname: Yang
mesh_terms: D000595:Amino Acid Sequence; D019295:Computational Biology / Q000379:methods*; D003627:Data Interpretation, Statistical; D030562:Databases, Protein; D019143:Evolution, Molecular; D020407:Internet; D008958:Models, Molecular; D008969:Molecular Sequence Data; D011487:Protein Conformation; D017434:Protein Structure, Tertiary; D011506:Proteins / Q000145:classification* / Q000235:genetics; D020539:Sequence Analysis, Protein; D017386:Sequence Homology, Amino Acid; D012984:Software; D040681:Structural Homology, Protein
chemical_list: D011506:Proteins