What is the basic transduction mechanism (pathway) for olfaction
What signal transduction pathway is utilized almost exclusively by interferons? Jak-STAT pathway cAMP-PKA pathway Ras-MAPK pathway NF-kB pathway Gluconeogenesis pathway
Describe how the signal transduction pathway that involves G proteins is similar to the signal transduction pathway involving inositol triphosphate. In a second paragraph describe how these 2 signal transduction pathways differ from one another. In a third paragraph describe how these 2 pathways are turned off.
You are studying a signal transduction pathway. Activation of your pathway results in activation of transcription of a gene that you are studying. In addition, activation of the signal transduction pathway results in phosphorylation of a number of effector proteins. Which of the following is most likely an effector protein of your signal transduction pathway that regulates transcription of your gene? A. An activator protein B. A coactivator protein C. A HAT D. A basal factor E. RNAPII
a) Describe the VEGFR signal transduction pathway. What is a RTK? How does it transmit an external signal to the interior of the cell? What is the response of the cell? b) How can signal transduction pathways can be used to explore and develop possible new drugs for breast cancer treatment?
-Trace the general mechanism by which a signal transduction pathway occurs (i.e. from signaling molecule to response) Describe the two ways in which signaling proteins act as molecular switches -Which amino acid residues do kinases typically add phosphate groups? Distinguish between the two types of G proteins -What proteins regulate GTP-binding protein (G proteins) in terms of activation and inactivation? - Distinguish between the three main classes of cell surface receptors. -Trace the general mechanism by which a signal transduction...
Describe the signal transduction pathway (steps and where each occurs in the cell)
Please answer this biology question below. Consider the following simplified diagram of a signal transduction pathway that regulates some aspect of cell metabolism: Provide a summary of what is happening in the above pathway. If this pathway is the cause of a specific disease state, which part of the pathway would be the best' target?!
In the cAMP signal transduction pathway, a protein kinase is activated. What happens next G protein is activated. cAMP is converted to ATP. The protein kinase activates a cellular response. GDP is replaced by GTP. Adenylyl cyclase is activated.
A signal transduction pathway includes the steps listed below. 1. An inactive signal transduction molecule is activated. 2. A transcription factor enters the nucleus. 3. A gene is expressed. 4. A ligand binds to a receptor. 5. A receptor undergoes a conformational change. 6. An active signal transduction molecule binds a transcription factor. Which represents the correct order of these steps? 4, 1, 5, 6, 2, 3. 5, 4, 1, 6, 3, 2. 4, 5, 1, 6, 2, 3. 1,...
5. What is the function of phosphatases in signal transduction processes? Amplify the transduction signal so it affects multiple transducers Amplify the second messengers such as CAMP Inactivate protein kinases and turn off the signal transduction Prevent a protein kinase from being reused when there is another extracellular signal Move the phosphate group of the transduction pathway to the next molecule of a series