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- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/04%3A_Cell_Metabolism/4.14%3A_Secondary_MessengersThis page explains the role of second messengers in cellular signaling, highlighting their importance in transmitting signals from cell receptors to target sites. It identifies the main classes of sec...This page explains the role of second messengers in cellular signaling, highlighting their importance in transmitting signals from cell receptors to target sites. It identifies the main classes of second messengers: cyclic nucleotides, inositol trisphosphate, diacylglycerol, and calcium ions.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Biology_(Kimball)/09%3A_Regulation_of_Gene_Expression/9.01%3A_Regulation_of_Gene_Expression_in_BacteriaThis page discusses gene expression regulation in E. coli, focusing on the lac operon, which metabolizes lactose through a repressor mechanism. When lactose is present, it enables transcription by det...This page discusses gene expression regulation in E. coli, focusing on the lac operon, which metabolizes lactose through a repressor mechanism. When lactose is present, it enables transcription by detaching the repressor. The page also covers the dual control by Catabolite Activator Protein (CAP), which requires cAMP for DNA binding, allowing prioritization of glucose over lactose.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_2e_(OpenStax)/02%3A_Unit_II-_The_Cell/2.06%3A_Cell_Communication/2.6.03%3A_Propagation_of_the_SignalOnce a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction onl...Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors because internal receptors are able to interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the receptor’s intracellular domain.
- https://bio.libretexts.org/Courses/Reedley_College/Biology_for_Science_Majors_I/09%3A_Cell_Communication/9.03%3A_Propagation_of_the_SignalOnce a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction onl...Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors because internal receptors are able to interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the receptor’s intracellular domain.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/General_Biology_1e_(OpenStax)/2%3A_The_Cell/09%3A_Cell_Communication/9.2%3A_Propagation_of_the_SignalOnce a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction onl...Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors because internal receptors are able to interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the receptor’s intracellular domain.
- https://bio.libretexts.org/Courses/Hanover_College/Comparative_Anatomy_and_Physiology_of_Animals/12%3A_Review_Topics/12.04%3A_Cell_Communication/12.4.03%3A_Propagation_of_the_SignalOnce a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction onl...Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors because internal receptors are able to interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the receptor’s intracellular domain.
- https://bio.libretexts.org/Bookshelves/Biochemistry/Fundamentals_of_Biochemistry_(Jakubowski_and_Flatt)/Unit_IV_-_Special_Topics/28%3A_Biosignaling_-_Capstone_Volume_I/28.02%3A_At_the_cell_membrane-_receptors_and_receptor_enzymesThe page explores detailed cell signaling processes starting at the cell membrane and moving to intracellular components like the nucleus, examining the structural features and functions of cell membr...The page explores detailed cell signaling processes starting at the cell membrane and moving to intracellular components like the nucleus, examining the structural features and functions of cell membrane receptors. It focuses on different receptor classes, including GPCRs and receptor tyrosine kinases, elaborating on their roles in signal transduction, receptor activation mechanisms, and downstream signaling pathways.
- https://bio.libretexts.org/Bookshelves/Biochemistry/Fundamentals_of_Biochemistry_(Jakubowski_and_Flatt)/Unit_IV_-_Special_Topics/28%3A_Biosignaling_-_Capstone_Volume_I/28.03%3A_The_Next_step_-_The_Kinome_and_Activation_of_Kinases_at_the_Cell_MembraneThis page explores the fundamentals of biochemistry with a focus on protein kinases, cellular signaling, and the kinome. It covers the diversity and structural features of kinases, how they are activa...This page explores the fundamentals of biochemistry with a focus on protein kinases, cellular signaling, and the kinome. It covers the diversity and structural features of kinases, how they are activated and regulated, including the detailed mechanisms of the kinome, kinases like Protein Kinase A, Protein Kinase C, and Akt, and their roles in signal transduction related to health and disease.
- https://bio.libretexts.org/Workbench/General_Biology_I_and_II/02%3A_Unit_II-_The_Cell/2.06%3A_Cell_Communication/2.6.03%3A_Propagation_of_the_SignalOnce a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction onl...Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors because internal receptors are able to interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the receptor’s intracellular domain.
- https://bio.libretexts.org/Workbench/BIOL_190%3A_General_Biology_(OpenStax)/02%3A_Unit_II-_The_Cell/2.06%3A_Cell_Communication/2.6.03%3A_Propagation_of_the_SignalOnce a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction onl...Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. Continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors because internal receptors are able to interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the receptor’s intracellular domain.
