PISA
Protein interfaces, surfaces and assemblies service PISA at European Bioinformatics Institute http://www.ebi.ac.uk/msd-srv/prot_int/pistart.html, authored by Eugene Krissinel and Kim Henrick. Quoting from the PISA website: "PISA is an interactive tool for the exploration of macromolecular (protein, DNA/RNA and ligand) interfaces, prediction of probable quaternary structures (assemblies), database searches of structurally similar interfaces and assemblies, as well as searches on various assembly and PDB entry parameters."[1]
Biological units displayed in the 'Structure Box' on Proteopedia PDB entry pages (e.g. 1h88) are predictions of the most likely biological unit as calculated by PISA.
ReferencesReferences
- ↑ Krissinel E, Henrick K. Inference of macromolecular assemblies from crystalline state. J Mol Biol. 2007 Sep 21;372(3):774-97. Epub 2007 May 13. PMID:17681537 doi:10.1016/j.jmb.2007.05.022