a protein or polysaccharide structure within the organism, which is linked to a particular disease. For disease intervention, the drug target is either inhibited or activated by a drug (small organic molecules, antibodies, therapeutic proteins).

a biological molecule in the body (often an enzyme) that is affected by a drug in such a way that its activity is altered

a molecule in the body, usually a protein, that is associated with a particular disease process and that could be addressed by a drug to produce a desired therapeutic effect

A gene or gene product (protein) against small molecule drugs will be screened and developed