ArchDB is a compilation of structural classifications of loops extracted from known protein structures. Loops in ArchDB have been classified using an improved version (Espadaler et al.) of the original ArchType program published in 1997 by Oliva et al..

ArchDB includes 4 classifications:

Oliva B, Bates PA, Querol E, Aviles FX, Sternberg MJ. An automated classification of the structure of protein loops.J Mol Biol. 1997 Mar 7;266(4):814-30.

Oliva B, Bates PA, Querol E, Aviles FX, Sternberg MJ. Automated classification of antibody complementarity determining region 3 of the heavy chain (H3) loops into canonical forms and its application to protein structure prediction. J Mol Biol. 1998 Jun 26;279(5):1193-210.

Espadaler J, Fernandez-Fuentes N, Hermoso A, Querol E, Aviles FX , Sternberg M, Oliva B. ArchDB: Automated protein loop classification as a tool for Structural Genomics. Nucl Acids Res. 2004 Jan 1;32: DataBase Issue D185-8.

Fernandez-Fuentes N, Hermoso A, Espadaler J, Querol E, Aviles FX, Oliva B. Classification of common functional loops of kinase super-families. Proteins. 2004 Aug 15;56(3):539-55.