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Could you complete the following chart and explain thoroughly? How would I conjugate from acid to base and vice versa?
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- 2. Vasopressin, a substance produced by the human body that regulates blood volume and pressure, is a nonapeptide with the following amino acid sequence. Describe the results you would expect when vasopressin is tested with the following reagents. sort GLY-ARG-PRO-CYS-ASN-GLN-PHE-TYR-CYS test xanthoproteic Millon's Hopkins-Cole nitroprusside observation A 250 25d ZYN CZ, ZINTEG DST ZWPlace each charge form of alanine under the pH condition where it would be the predominant form. The pK₁ values for the carboxyl group and amino group of alanine are approximately 2.3 and 9.7, respectively. pH 11 H | H₂C-C-COO NH₂ Does not occur in significant amounts at any pHMake use of the table below in answering the questions asked: Amino acid pK₁ pK₂ pK, Isoleucine 2.32 9.76 Leucine 2.32 9.74 Lysine 2.16 9.06 10.54 Tyrosine 2.20 9.21 10.46 I 1. Make sure to answer in two decimal places. What is the pl of the tripeptide ILY? 2. At pH 9.00, at which electrode will the ILY tripeptide be moving to? A. Anode B. Cathode C. The tripeptide will not move to either electrodes Make sure to show a solution or explanation for the answer.
- Label the following components (Number 1-5) Thank you so muchA tetrapeptide, glutamate-glycine-alanine-lysine, is prepared at at concentration of 1 mM (0.001 M) and is measured in the standard setup (pathlength of 1 cm). What is the approximate absorbance of this peptide at 280 nm? Hint: if the peptide contained a single tryptophan, the answer would be about 10. 10 280 1 0K₁ = α [H+][A-] [HA] [A-] pH = pK+log [HA] 1-1 The Amino acid Arginine ionizes according to the scheme below. Calculate the isoelectric point of Arginine and the average charge on arginine when pH = 9.2. NH2 H C=N NH pka-2.17 -H' NH2 H C=N H NH PK-8.99 -H +H* H (CH2)3 H-N-C-COOH | H H +H* H (CH2)3 H-N-C-coo- H H Ans: 10.75; +0.38 NH2 NH2 H C=N C=N-H H NH PK-12.5 -H NH | +H* (CH2)3 H₂N-C-COO- | H III (CH2)3 H₂N-C COO- H IV
- H CH₂ H₂C HC-CH3 CH₂ H H₂C (S) H₂C H CH₂ CH₂ CH₂ NH O C NH NH₂ a) Which of the following statements about this peptide are correct? Group of answer choices Treatment of this peptide with trypsin generates two products. This peptide is a substrate for carboxypeptidase A Treatment of this peptide with cyanogen bromide generates a pentapeptide and a tripeptide. Treatment of this peptide with chymotrypsin generates three products. Treatment of this peptide with elastase generates 2 products. None of the above statements are correct. b) What is the sequence of this peptide using one letter abbreviations? c) What is the pH which would correspond to the ionization of the peptide as drawn above? 1, 5, 7, 10, 14A mixture of Alanine (pl 6.02), Glutamic Acid (pl 3.22), Glycine (pl 5.79), Lysine (pl 9.74) and Threonine (pl 6.53) are separated by cation exchange chromatography. What is the order of elution of these amino acids if you use gradient buffer system from pH 10 to pH 2 ? v First 1. Alanine v Second 2. Glutamic Acid v Third 3. Glycine v Fourth 4. Lysine v Fifth 5. Threonine 6. No separation1. The R group of the amino acid lysine is: -CH2-CH2-CH2-CH2-NH2. Draw the structure of lysine, including the sites of ionization, under the following conditions: 16 NI a) strongly acidic solution; b) neutral solution; c) strongly basic solution Drifed them ard What are the results of the following test on lysine? c) nitroprusside a) ninhydrin; b) biuret;
