A protease binds its substrate in an extended conformation for better access to its amide linkages for hydrolysis. When this happened, which quadrant of a Ramachandran plot will the substrate's phi-psi bonds most likely be located in?
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- In a mixed heteropolymer experiment, messages were createdwith either 4/5C:1/5A or 4/5A:1/5C. These messages yielded proteinswith the amino acid compositions shown in the followingtable. Using these data, predict the most specific coding compositionfor each amino acid.4/5C:1/5A 4/5A:1/5CPro 63.0% Pro 3.5%His 13.0% His 3.0%Thr 16.0% Thr 16.6%Glu 3.0% Glu 13.0%Asp 3.0% Asp 13.0%Lys 0.5% Lys 50.0% 98.5% 99.1%Given the Ramachandran Plot below, identify the protein components that could adopt the phi-psi angle combination indicated by the number 3.a. An oligopeptide ALVGALGATPTPQMWSHSWRGVSIKS was digested with trypsin.Which method would be most appropriate for separating the products: ion exchange or gel filtration chromatography? Explain.b. Suppose that the peptide was digested with cyanogen bromide. What would be the optimal separation technique? Explain
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- Will rate ASAP Which of the following amino acid residues would not provide a side chain for acid-base catalysis at physiological pH? (Assume pK values of each amino acid are equal to the pK value for the free amino acid in solution.) I. leucine II. lysine III. aspartic acid IV. histidine A) I, II, III B) I, II C) I D) II E) I, III41. A 14 year old girl is admitted to the hsopital after taking an overdose of aspirtin. Her plasma salicylate concentration is measured every6 hours for the next 24 hours Hours Plasma Salicylate(mg/dL) 6 12 12 90 18 45 24 10 Which of the following is the most likely explanation for the initial salicylate kinettics observed in this patient (A) Decreased protein binding (B) Delayed Absorption (C) First orderf Elimination (D) impaired Renal Elimination (E) Zero-order eliminationq44 please calculate the unknown concentration of the protein A wih an absorbance value of A188 given the standard curve indicated in the table. write your answers in numbers only with 2 decimals. protein concentration (ug/ml) absorbance 0 0.000 0.02 0.161 0.04 0.284 0.06 0.438 0.08 0.572 0.10 0.762