View source for PISA

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Protein interfaces, surfaces and assemblies service [[PISA]] at European Bioinformatics Institute http://www.ebi.ac.uk/msd-srv/prot_int/pistart.html, authored by E. Krissinel and K. 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."''<ref>PMID:17681537</ref> PISA is a core part of [[CCP4]].<ref>PMID:15299374</ref>



[[Biological unit|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.

==References==
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