signal molecule plasma membrane activated GPCR -activated RTK G protein G protein phospholipase C PI 3-kinase Ras-GEF diacylglycerol phosphorylated inositol adenylyl cyclase IP3 phospholipid Ras Ca2+ MAP kinase kinase kinase cyclic AMP protein kinase 1 calmodulin MAP kinase kinase PKA CaM-kinase PKC MAP kinase Akt kinase ALTERED CELL BEHAVIOR ECB4 EQ16.51/Q16.61 From the information in above Figure, which of the following statements is incorrect, and explain your opinion(explanation)? A. The GPCR and the RTK both activate phospholipase C. B. Activation of either the GPCR or the RTK will lead to activation of transcriptional regulators. C. CaM-kinase is only activated when the GPCR is active and not when the RTK is active. D. Ras is activated only when the RTK is active and not when the GPCR is active.

signal molecule plasma membrane activated GPCR -activated RTK G protein G protein phospholipase C PI 3-kinase Ras-GEF diacylglycerol phosphorylated inositol adenylyl cyclase IP3 phospholipid Ras Ca2+ MAP kinase kinase kinase cyclic AMP protein kinase 1 calmodulin MAP kinase kinase PKA CaM-kinase PKC MAP kinase Akt kinase ALTERED CELL BEHAVIOR ECB4 EQ16.51/Q16.61 From the information in above Figure, which of the following statements is incorrect, and explain your opinion(explanation)? A. The GPCR and the RTK both activate phospholipase C. B. Activation of either the GPCR or the RTK will lead to activation of transcriptional regulators. C. CaM-kinase is only activated when the GPCR is active and not when the RTK is active. D. Ras is activated only when the RTK is active and not when the GPCR is active.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter9: Cell Communication

Section: Chapter Questions

Problem 12RQ: Histamine binds to the H1 G-protein-linked receptor to initiate the itchiness and airway...

See similar textbooks

Similar questions

Which of the following are activated either directly or indirectly by a heterotrimeric G protein subunit (select all that apply)? O IP, receptor O PIP3-dependent protein kinase O Protein Kinase A O Akt O Phospholipase C O Adenylyl cyclase O Phosphoinositide 3-kinase
3 of 16 Which statement about the IP3 DAG pathway is false? O Diacylglycerol can act as a second messenger. Inositol trisphosphate can act as a second messenger. O Protein kinase C can phosphorylate a wide variety of proteins. O Inositol trisphosphate remains bound to the membrane after phospholipase C catalyzes its formation. Inositol trisphosphate can open ion channels in the membraņes of smooth endoplasmic reticulum, releasing calcium into the cytoplasm.
Discuss Signaling by Receptors that Interact with Cytoplasmic Janus Kinases?
signal amplification of cells relies on which of hte following increased activity of protein phosphatases sequential increase in the different components, wherein a single, activated component can activate many copies of the next component in the pathway increasing numbers of cell-surface receptors as the signal is transduced increasing amounts of ligand aas signal transdutciton proceeds
Working out the order in which the individual components in a signaling pathway act is an essential step in defining the pathway. Imagine that two protein kinases, PK1 and PK2, act sequentially in a kinase cascade. When either kinase is completely inactivated, cells do not respond to the normal extracellular signal. By contrast, cells containing a mutant form of PK1 that is permanently active respond even in the absence of an extracellular signal. Double mutant cells that contain inactivated PK2 and permanently active PK1 respond in the absence of a signal. Draw out the signaling pathway in a wild-type cell. What outcome is predicted for a double mutant cell with an activating mutation in PK2 and an inactivating mutation in PK1? Explain your reasoning
Pathway divergence occurs when: signaling pathways use a common intermediate one signaling pathway triggers another O signaling pathways produce the same outcome signaling pathways split to produce multiple outcomes Question 8 Where are receptor tyrosine kinases usually phosphorylated? O tyrosine residues in the allosteric regulatory portion tyrosine residues in the N-terminal portion tyrosine residues in the transmembrane portion O tyrosine residues in the C-terminal portion
O Copy of Pathway divergence occurs when: O signaling pathways produce the same outcome one signaling pathway triggers another Osignaling pathways split to produce multiple outcomes. Osignaling pathways use a common intermediate Question 14 Which of the following is NOT a mechanism for halting G-protein coupled receptor signaling? receptor endocytosis. OGDP hydrolysis Arrestins 2. O ATP hydrolysis
Compare and discuss intergrin and tyrosine kinase signaling pathway . Show the difference and similarities between them interns of receptor ligand binding, signal transduction, changes in gene expression and subsequent cellular responses
Arrange following the boxed information in sequence regarding the dissociation and reassociation of G proteins following the activation of a G protein coupled receptor. GTP-bound Ga, dissociates from B and y cuhunits Gas exchanges GTP for GDP Gas reassociates with By subunits and the rorentor reforms Binding of the ligand to a G-protein rounled recentor GTP-bound Gas binds and activates adenvlul rurlase GTP is hydrolyzed and GDP bound Gas suhunit dissoriates Conformational change Increased synthesis of CAMP from ATP
Pay close attention to the information related to figure 3.14a and the structure of the PKA catalytic site in this figure. In a few well-written sentences, propose the following: A mutation that would result in PKA becoming a dead kinase*. A mutation that would result in PKA becoming a constitutively active** kinase.
Ligand binding of a (????) causes conformational changes in the receptor that free the associated G-protein to interact with other membrane proteins Voltage gated ion channel GPCR Ligand gated ion channel Ligandase pore
Signal Molecule- Somatostatin Receptor Name- Somatostatin receptor type 2 Draw the structure of the signal molecule (for peptides just sketch key motifs the best you can; i.e. alpha helices and beta sheets) discuss (100 words) the key features of the signaling cascade produced by reception of the signal molecule. along w/ 2-3 bullet points highlighting areas critical to signal amplification as well as basic mechanisms of signal termination. Cite one article