Types of Receptors

Types of Receptors PowerPoint PPT Presentation


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Domains present on the receptors. All receptors have two functional domains:Recognition domainCoupling domain.. . Recognition domain: it binds the hormoneCoupling domain: it generates a signal that couples the hormone recognition to some intracellular function.Coupling means signal transductio

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Types of Receptors

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1. Dr Amena Rahim Biochemistry Types of Receptors

2. Domains present on the receptors All receptors have two functional domains: Recognition domain Coupling domain.

3. Recognition domain: it binds the hormone Coupling domain: it generates a signal that couples the hormone recognition to some intracellular function. Coupling means signal transduction. Receptors are proteins.

4. These are proteins, to which hormones bind. They are present in cell membranes, cytoplasm and nucleus, and serve two functions. Firstly, they are required for selectivity. Secondly, they are connected to an effecter mechanism in the cell .

5. Selectivity Effecter mechanism- receptor has got two domains. Binding domain Signal generation domain

6. (Steroid, Retinoid and Thyroid have several functional domains): Binding of ligand Binding of DNA Binding of co regulator proteins(activation or inhibition) Binding of other proteins that specify intracellular trafficking of receptor.

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