how can multiple map kinase pathways be segregated when they share a common component
ans: Multiple map kinase pathways segregated by the formation of pathway specific complexes assembled on molecular scaffold. THE MAP kinase signaling complexes in the Mating and Osmoregulatory pathways in the yeast.ste11 is a common component which is shared by both pathways.the Pbs2 function as a scaffolde,it assemble a large singaling complex which segegate the both pathways.

how can multiple map kinase pathways be segregated when they share a common component
When activated in yeast cells, the MAP kinase kinase kinase, Ste11, can function to regulate mating, to respond to an increase in extracellular molarity, or respond to a condition of nitrogen starvation. Under conditions of high extracellular molarity, how does a yeast cell trigger activation of osmoresponsive genes, but not genes that are nitogen-responsive or mating partner-responsive?
1. Bypassing the pyruvate kinase reaction. Gluconeogenesis and glycolysis are opposing pathways that share seven enzymes. The exergonic steps in glycolysis cannot be simply reversed because that would be too energetically costly. Thus, these steps are "bypassed" in gluconeogenesis with a separate set of enzymes. a. Explain why the reaction catalyzed by pyruvate kinase is energetically favorable and essentially irreversible in the cells. b.Explain how the cells that run gluconeogenesis are able to bypass this step with specific reactions that...
Explain the multiple pathways involved in the biotransformation of acetaminophen. Be sure to include how/when toxicity may be induced.
-Describe how trimeric G proteins get activated and inactivated - Name the two common second messengers In what signaling pathways do these messengers get activated (Yes, you do need to know the names of the key players in the pathway!)? What can the second messenger then do? What two criteria are needed for activation of a receptor tyrosine kinase? -Describe how monomeric Ras is activated and what does Ras do upon activation. (Again, you must know the signaling pathway)
-Describe...
The small monomeric G protein Ras is an important component of most receptor tyrosine kinase signaling pathways. It can regulate a number of downstream signaling components, perhaps most famously the MAPK cascade. Unlike other monomeric G proteins that we have discussed previously in class, Ras is anchored at the plasma membrane by a covalently bound lipid anchor. If Ras was specifically mutated so that it did not get this lipid modification (but was otherwise completely unchanged), what do you hypothesize...
How to find earnings per share of common stock?
Earnings per Share and Multiple-Step Income Statement The following summarized data relate to Bowden Corporation's current operations: Sales revenue Cost of goods sold Selling expenses Administrative expenses Loss on sale of equipment Income tax expense Shares of common stock Outstanding at January 1 Additional issued at May 1 Additional issued at November 1 $745,000 450,000 58,000 72,000 5,000 64,000 15,000 shares 7,000 shares 2,000 shares Required Prepare a multiple-step income statement...
Quick question. thanks!
Protein kinase A, B, C, What do these proteins have in common? How are they different?
Create a metabolic pathway map that shows what happens to a glucose molecule that enters a muscle cell and becomes metabolized to lactate (in Oz-depleted muscle). Follow the lactate through the Cori cycle, and show how it ultimately gets converted to a glucose molecule that can once again enter the muscle cell. In addition, show how the glucose may be stored as glycogen, and mobilized from glycogen in both liver and muscle. Also show how pyruvate gets converted to acetyl-CoA...
When using the K-map to find the equations for DA and DB for the problem down below, how can you tell which variable is supposed to be for the row and columns? How can I tell if the rows for the 2x4 k-maps would be dealing with "A" while the columns would be dealing with "Bx"? Does it even matter how I set up the K-map? --------------------------------------------------------------------------------------------------------------------------------------------------------- Design a sequential circuit with two D flip-flops A and B, and one...
When a systems utilizes multiple CPUs the CPUs run largely independently however one component requires synchronization-that component is ?