Here are some useful links for the GPCR researcher. This is just a brief selection, so if you feel that there is something missing that should be here please leave your suggestion at the Feedback section!

• The GPCRDB at the CMBI, the Netherlands.
• The GPCRDB Tools is a collaboration between the Department of Drug Design and Pharmacology, University of Copenhagen and the CMBI, Radboud University Nijmegen.
• The tinyGRAP Mutant Database at the CMBI (formerly at Tromso, Norway).
• The GPCR Oligomerization Knowledge Base (GPCR-OKB) at the Weill Medical College of Cornell University.
• The Natural Variants database.
• GPCRRD, G protein-coupled receptor spatial restraint database for 3-D structure modeling and function annotation.

The gpcr-modsim.org webserver glues-together the following programs:

• The modeller homology modeling software.
• The gromacs molecular dynamics package.
• The STAMP multiple structure alignment program.
• The Clustal multiple sequence alignment program.
• The django framework.
• The useful plugins Jalview and Jmol.

The internal project web page (login required for developers) is here.