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Video Summary:
Receptors receive signals from cells exterior. They have a ligandbinding domain to recognize specific ligand and an effector domain to produce the downstream effect. Receptors for hydrophilic signal molecules are located on the cell membrane and receptors for hydrophobic molecules are located inside the cell. Various types of receptors are ligandgated ion channels that regulate the opening or closing of the channel. G proteincoupled receptors act through G proteins and ultimately regulate the function of a wide range of enzymes and ion channels. Catalytic receptors mostly activate or inactivate a protein by phosphorylating or dephosphorylating them and Nuclear receptors serve as transcription factors.

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DISCLAIMER: This video is for education purposes only. Although every effort is made to ensure the accuracy of the material, viewers should refer to the appropriate regulatory body/authorized websites, guidelines, and other suitable sources of information as deemed relevant and applicable. In view of the possibility of human error or changes in medical science, any person or organization involved in the preparation of this work accepts no responsibility for any errors or omissions, or results obtained from the use of information in this video.