Protein Structure Search

Input a protein structure as a query to discover its homologous proteins and evolutionary classifications.

Press the to obtain more information on that specific field.

NEWS: The standalone 3D-BLAST program is avaliable now. Please see Download page for more information.

New protein:		Upload a file in PDB format. Click here to download an example pdb file.     Chain ID:
		Search
Options:
	Choose Database
	PDB(29-May-10)nr-PDB-90SCOP 1.75 (all)SCOP 1.75 (95%)SCOP 1.75 (40%)
	E-value
	10-1 10-5 10-10 10-15 10-20
	Maximum number of hit structures
	10 20 50 100 200 other:
Reference:
	1. C.-H. Tung, J.-W. Huang and J.-M. Yang “Kappa-alpha plot derived structural alphabet and BLOSUM-like substitution matrix for fast protein structure database search,” Genome Biology, vol. 8, pp. R31.1~R31.16, 2007.
	2. J.-M. Yang and C.-H. Tung “Protein structure database search and evolutionary classification,” Nucleic Acids Research, vol. 34, pp. 3646-3659, 2006.
Related Work:
	fastSCOP: A web server that rapidly identifies the structural domains and determines the evolutionary superfamilies of a query protein structure by using 3D-BLAST.
Last updated 2010/05/29 by J.-M. Yang, C.-H. Tung