lecture_4 - Membrane transport and Cell Signaling Types of...

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Membrane transport and Cell Signaling Types of receptors Second messengers Endocrine signaling
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Types of cell signaling Fig. 4.1/ 3.1 Direct cell signaling via gap junctions Autocrine/paracrine signaling Endocrine signaling Neural signaling
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Types of receptors Fig. 4.10/ 3.16 Transmembrane receptors Intracellular receptors
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Intracellular receptors Fig. 4.11/ 3.17 Fig. 2.33 Intracellular receptors bind to responsive elements of DNA and affect gene expression
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Intracellular receptors Fig. 4.12/ 3.18 Intracellular receptor signal can be amplified by a cascade Effects are relatively slow
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Types of receptors Fig. 4.10/ 3.16 Transmembrane receptors Intracellular receptors
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Ligand-gated ion channels Fig. 4.13/ 3.19
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Receptor-enzymes Fig. 4.14/ 3.20
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Receptor-enzymes Fig. 4.14/ 3.20
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Receptor-enzymes Reactions often involve phosphorylation/ dephosphorylation Phosphorylations are carried out by kinases cGMP and cAMP are involved in a lot of signal transduction Fig. 4.14/ 3.20
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Receptor-enzymes Amplification by phosphorylation cascades Fig. 4.17/ 3.23
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Fig. 4.10/
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lecture_4 - Membrane transport and Cell Signaling Types of...

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