QUESTION 10 There are 2 tyrosines, 6 phenylalanines, and 3 tryptophan in bovine protein. The Molar extinction coefficient of this protein (in Abs M-1 cm-1) is O Not enough information 14,800 O 19,200 O 12,800
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- 5/ n SO a- 6.46 The following data show the binding of Mg2+ ions with a protein containing n equivalent sites: [Mg2+ ] total/μM [Mg2+ ]free/μM 108 Com 35 180 65 288 501 115 248 752 446 Apply the Scatchard plot to determine n and Ka. The protein concentration is 98 µM.QUESTION 1 Which protein standard curve would you use to read off the protein concentration of an unknown sample with an absorbancy value of 1.105 1.75 1.50 1.25 1.00 0.75 0.50- O- BSA + BGG 0.25 - 0.00 500 1,000 1,500 2,000 Protein Concentration (pg/ml) Download image. O BSA standard curve O BGG standard curve O Either BSA or BGG standard curves O Neither BSA or BGG standard curves Net Absorbance (595 nm)If the absorbance at540nm of a biuret and protein solution containing 0.25mg/ml of protein .24 the absorbance of a biuret and protein and dna solution containing.25mg/ml of protein and 0.5mg/ml dna should be note the total volume is the same in both solutions 0.24 0.72 0.48 not enough infor
- Cells in the human liver contain glycogen, a polysaccharide that is used as a source of energy. This is a model of a typical glycogen granule: 42 22 AWARD Edit View Insert Format Tools Table be *** www 27544 Hals De w Jay MASCH Abh P CON p bo H S ******** 124 3. P WH ** patink The G k page flees P ******* 44651 CAPE Porn Tele de to MATE www 74 H Supe This type of granule may contain up to 30,000 (3 x 104) glucose subunits, making up the glycogen chains. A. How many ATP's could theoretically be produced when a granule of glycogen is hydrolyzed to glucose subunits that then enter glycolysis and respiration? B. Glycogen metabolism is regulated by insulin and glucagon. Both of these hormones are produced by the pancreas and act as signals that interact with a transmembrane receptor on target cells. Intracellular events involve protein kinase A that activates or inactivates enzymes involved in glycogen synthesis or degradation. Briefly describe what protein kinase A does to these proteins.Materials - 2021FA-CHM-1O X Bb 4427577 d-fleet02-xythos.content.blackboardcdn.com/6086c260d7e8f/4427577?X-Blackboard-Expiration=1633143600000&X-Blackboard-Sig 6 / 9 100% Exercise 1: Standard Curve for Protein Measurements: A standard curve for protein concentration is often created using known concentrations of bovine serum albumin (protein). This process is called the Bradford Assay; it is a colorimetric assay. A special reagent turns blue when it binds to amino acids present in protein. The intensity of the color is best measured with a spectrophotometer (a device for comparing two light radiations, wavelength by wavelength). In the case of the Bradford Assay the greater the absorbance, the higher the protein concentration. A series of tests were performed on some samples and spectrophotometer: following measurements were obtained using a Protein Concentration (mg/ml) Absorbance (A) 0.26 0.098 0.56 0.213 0.383 0.84 1.12 0.473 1.40 0.527 TASKS: 1. Enter the data into Excel - the…[protein] volume [protein] [protein] in to Sample Lysate in "gel- load 5 in 20 protein in Name volume assay* lysate ready" ul sample protein 3.9 2 µl Hg/ml Tilapia 19.9 10 μι Hg/ml 18.2 2 µl Hg/ml Cod >20 14 10 μι Hg/ml 9.4 15 2 µl ug/ml Sole >20 6. 10 μι ug/ml > >
- 3. Given the partial sequence of a peptide: ILWANRMSHVLFAVE A Which amino acid residues would you expect to be on the solvent-exposed surface once it fold into its native conformation (in vivo)? State your reasoning in full sentence.All nucleic acid samples regardless of conformation and type will use the same absorption constant of 50 ng/ul for A260-1. O True FalseQUESTION 3 An unknown protein was determined using the following method: Bradford method Reagents Stock Bradford reagent: Dissolve 100 mg Coomassie Brilliant Blue G250 in a mixture consisting of 100ml of 85% phosphoric acid, 50ml of 95% ethanol and 50ml 1M NaOH. Store at 4°C until precipitation occurs, at which point it is discarded. Working Bradford reagent: Prepare fresh by diluting 10ml of stock Bradford reagent to 250ml with distilled water. Stock bovine serum albumin (BSA) solution (10mg/ml): Dissolve 0.2g BSA in 20ml distilled water. Working BSA concentration range: 0.5 – 1.25 mg/ml Method 1. Prepare the following test tubes: Table 1: Preparation of test tubes for the Bradford method Blank Tube 1 Tube 2 Tube 3 Tube 4 Tube 5 Unknown Distilled H20 1.0 ml 0.9ml 0.9ml 0.9ml 0.9ml 0.9ml 0.8ml 0.25 mg/ml BSA 0.1 ml 0.5 mg/ml BSA 0.1 ml 0.75 mg/ml BSA 0.1 ml 1.0 mg/ml BSA 0.1 ml 1.25 mg/ml BSA 0.1ml Unknown 0.2ml protein Working 4.0ml 4.0ml 4.0ml 4.0ml 4.0ml 4.0ml 4.0ml Bradford 2.…
- Arginine 12 14.0 VI 12.0F 12.0 10.0F IV 10.0 8.0 8.0 pH 6.0 6.0 4.0- 4.0 2.0 2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Eguiyslonts of Ou Below you can find the titration curve for arginine. The pH was monitored, and the results were plotted as shown in the graph. The key points in the titration are designated I to VI. For each of the statements (a) to (f), identify the appropriate key point in the titration. (pKa (СООН): 1.82, рКa (NH2): 8.99, pKa (R): 12.48) Average net charge of +2 predominates: The predominant species is +H3N-CH-((CH2)3-NH-C-NH2-NH2+)-COO- : Average net charge of arginine is 0: d. а. b. C. The pH is equal to the pka of the carboxyl group: Half of the backbone amino groups are protonated: Average net charge of arginine is +1/2: The carboxyl group has been completely titrated: е. f. g.QUESTION 2 For the peptide: TREATS, what would be the y3 ion? EATS TRE TS ATS QUESTION 3 In the presence of 0.000005 M competitive inhibitor, an enzyme exhibits an apparent Km of 0.002M. If the Kq of the inhibitor is 0.0000003 M, what is the true Km of the enzyme? Give your answer with 3 significant figures an scientific notation. For example, 0.000023434 is 2.34e QUESTION 4 Approximately how many domains are in an 82.5 kDa protein? O a.2 70 Mostly cloudyA Click Save and Submit to save and submit. Click Save All Answers to save all answers. Tune here to searchPlease save all answers. Questions that you save can still be e u have 1 UNSAVED ANSWER- SAVE ALL ANSWERS Question 30 The pK, values for Lysine are 1.92/9.99/13.8. At what pH will the amino acid not migrate in an electrical field? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 10.9 9.8 11.9 9.7 e 8.4 f 11.2 g 10.6 11.6 11.1