Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Textbook Question
Chapter 27.4, Problem 27.6P
Deduce the amino acid sequence of an undecapeptide (11 amino acids) from the experimental results shown in the table.
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Chapter 27 Solutions
Organic Chemistry
Ch. 27.1 - Of the 20 protein-derived amino acids shown in...Ch. 27.2 - Prob. 27.2PCh. 27.2 - Prob. 27.3PCh. 27.3 - Draw a structural formula for Lys-Phe-Ala. Label...Ch. 27.4 - Which of these tripeptides are hydrolyzed by...Ch. 27.4 - Deduce the amino acid sequence of an undecapeptide...Ch. 27.6 - Prob. 27.7PCh. 27 - What amino acid does each abbreviation stand for?...Ch. 27 - The configuration of the chiral center in -amino...Ch. 27 - Assign an R or S configuration to the chiral...
Ch. 27 - Prob. 27.11PCh. 27 - Prob. 27.12PCh. 27 - Draw zwitterion forms of these amino acids. (a)...Ch. 27 - Prob. 27.14PCh. 27 - Why is Arg often referred to as a basic amino...Ch. 27 - Prob. 27.16PCh. 27 - Prob. 27.17PCh. 27 - Prob. 27.18PCh. 27 - Prob. 27.19PCh. 27 - Prob. 27.20PCh. 27 - Both norepinephrine and epinephrine are...Ch. 27 - Prob. 27.22PCh. 27 - Draw a structural formula for the form of each...Ch. 27 - Prob. 27.24PCh. 27 - Write the zwitterion form of alanine and show its...Ch. 27 - Prob. 27.26PCh. 27 - Write the form of aspartic acid most prevalent at...Ch. 27 - Prob. 27.28PCh. 27 - Prob. 27.29PCh. 27 - For lysine and arginine, the isoelectric point,...Ch. 27 - Prob. 27.31PCh. 27 - Account for the fact that the isoelectric point of...Ch. 27 - Prob. 27.33PCh. 27 - Prob. 27.34PCh. 27 - At pH 7.4, the pH of blood plasma, do the majority...Ch. 27 - Prob. 27.36PCh. 27 - Prob. 27.37PCh. 27 - Prob. 27.38PCh. 27 - A chemically modified guanidino group is present...Ch. 27 - Draw a structural formula for the product formed...Ch. 27 - Prob. 27.41PCh. 27 - Prob. 27.42PCh. 27 - A decapeptide has the following amino acid...Ch. 27 - Following is the primary structure of glucagon, a...Ch. 27 - Prob. 27.45PCh. 27 - Draw a structural formula of these tripeptides....Ch. 27 - Estimate the pI of each tripeptide in Problem...Ch. 27 - Glutathione (G-SH), one of the most common...Ch. 27 - Following are a structural formula and a...Ch. 27 - Prob. 27.50PCh. 27 - Prob. 27.51PCh. 27 - Prob. 27.52PCh. 27 - Prob. 27.53PCh. 27 - Prob. 27.54PCh. 27 - Distinguish between intermolecular and...Ch. 27 - Prob. 27.56PCh. 27 - Prob. 27.57P
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- On complete hydrolysis, a polypeptide gives two alanine, one leucine, one methionine, one phenylalanine, and one valine residue. Partial hydrolysis gives the following fragments: Ala-Phe, Leu-Met, Val-Ala, Phe-Leu. It is known that the first amino acid in the sequence is valine and the last one is methionine. What is the complete sequence of amino acids?arrow_forwardGive the sequence of the following tetrapeptide:arrow_forward2. From the data in table A, what amino acid(s) does gelatin contain?arrow_forward
- Draw the structure of the dipeptide Lys-Pro that is predominant at pH 8. Include all of the atoms and appropriate charges. Do not use the short-hand line diagrams.arrow_forwardI am given an unknown sample of an amino acid. On testing it, I find that its R group is polar, and contains a benzene ring. It is most likely to be: a. Threonine b. Phenylalanine c. Tryptophan d. Histidine e. Tyrosinearrow_forward(1) Which is an achiral amino acid? (2) Which is the basic and the acidic amino acid? (3) Which is a a cyclic amino acid?arrow_forward
- Draw the peptide Glycine-Alanine-Serine-Cysteine-Isoleucine-Glutamic acid Tryptophan-Valine. Circle the peptide bonds. Connect the atoms at will participate in hydrogen bonds if this sequence adopted an alpha-helical structurearrow_forwardThe denaturing of proteins occurs when the stabilizing forces are altered. Below is the set of processes in which proteins are denatured. Classify the following processes according to the denaturing agent involved. Please help me understand the diff and correct any mistakes.arrow_forwardExplain the basic principle of the reaction between the amino acid histidine and the ninhydrin reagent.arrow_forward
- Consider the structure of the peptide below. Name it using the three-letter abbreviation. Lysine-aspartic acid-cysteine-alanine-tyrosine-lysine-glutamic acid-valine-glycinearrow_forwardI'm not sure how amino groups interact. what kind of data?arrow_forwardComplete hydrolysis of a 100.00-g sample of a peptide gave the following amounts of individual amino acids (molarmasses, in g/mol, appear in parentheses):3.00 g of glycine (75.07) ;0.90 g of alanine (89.10);3.70 g of valine (117.15);6.90 g of proline (115.13);7.30 g of serine (105.10);86.00 g of arginine (174.21);(a) Why does the total mass of amino acids exceed the mass of peptide? (b) What are the relative numbers of amino acids in the peptide? (c) What is the minimum molar mass of the peptide?arrow_forward
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Biomolecules - Protein - Amino acids; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=ySNVPDHJ0ek;License: Standard YouTube License, CC-BY