G Protein-Coupled Receptors (GPCRs) are the targets of 50-60% of all existing medicines including well-known -blockers and anti-histamine therapeutics.
  

The most important aspect in the production of antibodies or drug is the design of the peptide antigen. This database contains Peptide Antigens against all known proteins.

The Pathway Database is the largest collection of signaling transduction and metabolic pathways. All pathways include extensive reviews and detailed protein information.