This video deals with the receptors, their location and their effect on the system as soon as they interact with the drug. Structure of receptors together with the mechanism involved as an interactive process between receptor and drug. TIMELINE: 0:09 Introduction 0:10 Intracellular receptors 0:25 Location of cytoplasmic receptors and nuclear receptors 0:40 Structure of receptors 0:55 HSP 90 protein 1:15 Ligand-binding receptors 1:58 Transcription to mRNA 2:03 Translation of protein 2:14 Old drugs 2:26 End