Pharmatrek PharmaTrek allows pharmacological space to be navigated in a flexible and interactive way, by accessing the content of ChEMBL via the Open PHACTS Discovery Platform. The results of a target search are highly filterable and easily linked with ligand chemical structure.
  Maria C. Carrascosa, Oriol L. Massaguer, Jordi Mestres 'Pharamatrek: A semantic Web Explorer for Open Innovation in Multitarget Drug Discovery' Molecular Informatics. Vol. 31, No. 8 (August 2012), pp. 537-541,doi:10.1002/minf.201200070
BCN iPHACE is an integrative web-based tool to navigate in the pharmacological space defined by small molecule drugs contained in the IUPHAR-DB and PDSP databases. Extending beyond traditional querying and filtering tools, iPHACE offers a means to extract knowledge from the target profile of drugs as well as from the drug profile of protein targets.
  García-Serna R, et al. iPHACE: integrative navigation in pharmacological space. Bioinformatics (2010) 26(7):985-986.[Abstract/Free Full Text]
FCP FCP is a publicly accessible web tool dedicated to analysing the current state and trends on the population of available structures along the classification schemes of enzymes (specially kinases and proteases), G protein-coupled receptors, nuclear receptors and transporters/channels, offering both graphical and quantitative data on the degree of functional coverage in that portion of the proteome by existing structures, as well as on the bias observed in the distribution of those structures among proteins.
  García-Serna R, et al. FCP: functional coverage of the proteome by structures. Bioinformatics (2006) 22:1792–1793.[Abstract/Free Full Text]