SAVE 10%! The GPCR — Drug Targets Report on G-Protein Coupled Receptors (GPCR) covers types of various GPCR Families and ligands targeting GPCR. Included are: GPCR families: Rhodopsin, Secretin, Metabotropic glutamate and much more. And, Ligands targeting GPCRs: Peptides or Proteins, Biogenic Amines, Lipids and others.