1. Consider the following set of data and answer the following questions: IS) (M) 6x 10 1x 105 2x 105 6x 105 1.8 x 10 V (umol/min) V (+ Inhibitor) (umol/min) 20.8 12 29 15 45 20 67.6 24 87 28 a. Plot the data on a Lineweaver-Burk plot (be sure to label axes) b. Determine the Km C. Determine the Vmax d. The second set of velocities represents the rate of the reaction when an inhibitor is added. Plot these data on the same graph as above and detemine the new Km and Vmax and the type of inhibitor (competitive, uncompetitive, non-competitive). e. Can the effects of the inhibitor be over-ridden by adding more substrate? Why?
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Consider the following set of data and answer the fo
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- 1) SiRNA's result from the activity Argonaut true or false?Which ONE of these statements is the most accurate definition of the mode of action of imatinib? Select one: A.It is a specific inhibitor of the BCR‐ABL1 fusion protein and blocks phosphatase activity by competing with adenosine triphosphate (ATP) binding B.It is a specific inhibitor of the BCR‐ABL1 fusion protein and blocks tyrosine kinase activity by competing with adenosine triphosphate (ATP) binding C.It is a specific inhibitor of the BCR‐ABL1 fusion protein and blocks tyrosine kinase activity by interaction with the enzyme site D.It is a specific inhibitor of the BCR‐ABL1 fusion protein and blocks phosphatase activity by interaction with the enzyme siteBased on your Lineweaver-Burk plot, what is the mode of PaESBL-1 inhibition by NSAMB? What is the equation for the double-reciprocal plot at 20 nMnM NAMB?
- During an SAR effort to identify tyrosine kinase inhibitors, it was found that compound 2 was significantly more potent and selective than compound 1. To what might you attribute this improvement in activity and selectivity? Explain. IC-5 micromolar IC-0.1 mromolarBased on the principles of RP-HPLC, which sub fraction in the figure (P1 to P8) is the most polar? Explain.Bradford Assay Fill in the average A595 and A595 of sample minus A595 of blank. Show some sample computation. Concentration (micrograms/ml) A595 - trial 1 A595 - trial 2 A595 - trial 3 average A595 A595 of sample minus A595 of blank 0 1.501 1.446 1.447 2 1.624 1.558 1.559 5 1.731 1.749 1.712 10 1.901 1.838 1.892 15 2.161 2.108 2.228 18 2.231 2.277 2.319
- a) Which concentration of anesthetic has the least variation in it's effect on muscle contraction? Question 15 options: 10-6 10-7 10-10 10-8 b) What might the vertical capped bars (Τ) in the graph represent? Choose all that apply. Question 16 options: standard deviation standard error of the mean degrees of freedom number of replications of the experiment c) Which of the following statements accurately describes the effect of anesthetic on muscle contraction? Choose all that apply. Question 17 options: There is a positive relationship between number of muscle contractions and mean anesthetic concentration decreases There is a negative effect of anesthetic concentration on muscle contraction As concentration of anesthetic is…Two co-op students at your start-up company have been asked to evaluate the rate of reaction occurring in a transparent gel particle containing immobilized mouse melanoma cells. The equation for the reaction rate ris is: Vmax T'As Km+CAs where R=3.2 mm, Vmax= 0.12 gmol s' m3, CAS = 41 gmol m3, and Km=0.8 gmol m3. One student reports a reaction rate of 1.6x10 gmol st; the other reports 1.6x10 1º gmol s1. You left your calculator on the bus this morning, but must know quickly which student is correct. Use an order-of- magnitude calculation to identify the right answer. Which student is correct?You have the following reagents available Rat anti-Keratin 8 antibody specific for mouse Keratin 8, Rabbit polyclonal antibody against mouse keratin 5 and antifade reagent with DAPI to stain DNA. Both primary antibodies work best at 1:500 dilution. A) What additional reagents would you need to perform immunostaining of frozen sections of mouse thymus tissue for Keratin 8 that is expressed in cortical thymic epithelial cells and Keratin 5 that is expressed in mouse medullary thymic epithelial cells? B) Create a staining protocol including all tubes and appropriate controls to stain 4 slides with frozen thymic sections. You will need 200ul of antibody staining solution for each slide.
- 4) Consider the following list of hypothetical antibiotics, tested against Escherichia coli in a Kirby-Bauer test: Antibiotic Zone of Inhibition (mm) Astonostatin 12 Bodaciosporin 25 Crazifloxacin 5 Dorkimycin 16 When the above antibiotics were tested as treatments for E. coli infections in humans, it was found that Dorkimycin has virtually no effect on the infection, while Astonostatin is the most effective of the four antibiotics listed. Propose an explanation for this result. Based purely on these results, can you draw up a similar table for predicted zones f inhibition for Staphylococcus aureus? Why or why not?2) After plotting actin bound to cofilin versus the cofilin concentration, you generate the figure below. v (cofilin binding density) 1 0.8 0.6 0.4 0.2 0 2 4 6 8 [S. pombe cofilin] free (UM) 10 a) What is the Kd you measure for this interaction? b) What is the AG of the interaction? c) Based on the data, is there anything you suspect about the binding of protein and ligand?2. The following data were generated after a set of bovine serum albumin standards were measured via the BCA assay. Table 1. Absorbance measurements at 562 nm for BSA standards measured in triplicate in a BCA Assay. Standards A B C D E F G H I Conc (ug/ml) 2000 1500 1000 750 500 250 125 25 0 Replicate 1 Abs @ 562 nm 2.381 2.039 1.505 1.143 0.819 0.454 0.245 0.056 0 Replicate 2 Abs @ 562 nm 2.456 2.052 1.489 1.156 0.823 0.46 0.272 0.049 0 Replicate 3 Abs @ 562 nm 2.43 2.05 1.47 1.17 0.81 0.48 0.255 0.053 0.00 Use Excel or your graphing program of choice to create a standard curve using the data from table 1. Consider the best way to graph this data. Make sure the type of graph that you select will allow you to add a line of best fit. Display the equation for the line of best fit directly on the graph. Hint... you'll want to think about how to treat the triplicate values when making the graph. Also consider the type of graph that should be selected to allow for addition of the line of…