Editing Protein quaternary structure (section)

== External links ==
* [http://www.ebi.ac.uk/msd/ The Macromolecular Structure Database] (MSD) at the [[European Bioinformatics Institute]] (EBI) – Serves a list of the Probable Quaternary Structure (PQS) for every protein in the [[Protein Data Bank]] (PDB).
* [http://pqs.ebi.ac.uk/ PQS server] – PQS has not been updated since August 2009
* [http://www.ebi.ac.uk/msd-srv/prot_int/pistart.html PISA] – The Protein Interfaces, Surfaces and Assemblies server at the [[Macromolecular Structure Database|MSD]].
* [http://www.eppic-web.org EPPIC] – Evolutionary Protein–Protein Interface Classification: evolutionary assessment of interfaces in crystal structures
* [https://archive.today/20070124184622/http://www.mrc-lmb.cam.ac.uk/genomes/elevy/3dcomplex/Home.cgi 3D complex] – Structural classification of protein complexes 
* [[Proteopedia]] – [http://www.proteopedia.org Proteopedia Home Page] The collaborative, 3D encyclopedia of proteins and other molecules.
* [[PDBWiki]] – [http://PDBWiki.Org PDBWiki Home Page] – a website for community annotation of PDB structures.
* [[ProtCID]] – [http://dunbrack2.fccc.edu/protcid ProtCID]—a database of similar protein–protein interfaces in crystal structures of homologous proteins.

{{Protein quaternary structure}}
{{Biomolecular structure}}

[[Category:Protein structure|Protein structure 4]]
[[Category:Stereochemistry]]