ORGANIC CHEMISTRY,VOL.1 >CUSTOM<
10th Edition
ISBN: 9781260020724
Author: Carey
Publisher: MCG CUSTOM
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Concept explainers
Question
Chapter 26.7, Problem 15P
Interpretation Introduction
Interpretation:
Using one-letter abbreviations for the amino acids, the amino acid sequence of methionine encephalin is to be written.
Concept Introduction:
A peptide bond is an amide bond. A dipeptide contains two amino acids linked by a peptide bond.
It is formed among amino group of one amino acid; the carboxyl group of the other amino acid.
The peptide structures are written, such that the amino group is at the left side and the carboxyl group is at the right side.
The left end of the peptide is called the N terminus and the right end is called the C terminus.
Expert Solution & Answer
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ORGANIC CHEMISTRY,VOL.1 >CUSTOM<
Ch. 26.1 - Prob. 1PCh. 26.2 - Prob. 2PCh. 26.2 - Prob. 3PCh. 26.3 - Prob. 4PCh. 26.3 - Prob. 5PCh. 26.4 - Prob. 6PCh. 26.4 - Prob. 7PCh. 26.4 - Prob. 8PCh. 26.5 - Prob. 9PCh. 26.6 - Prob. 10P
Ch. 26.6 - Prob. 11PCh. 26.6 - Prob. 12PCh. 26.7 - Prob. 13PCh. 26.7 - Prob. 14PCh. 26.7 - Prob. 15PCh. 26.7 - Prob. 16PCh. 26.7 - Prob. 17PCh. 26.9 - Prob. 18PCh. 26.10 - Digestion of the tetrapeptide of Problem 26.18...Ch. 26.12 - Prob. 20PCh. 26.12 - Prob. 21PCh. 26.15 - Prob. 22PCh. 26.15 - Prob. 23PCh. 26.16 - Prob. 24PCh. 26.17 - Prob. 25PCh. 26.18 - Prob. 26PCh. 26 - Prob. 27PCh. 26 - Prob. 28PCh. 26 - Prob. 29PCh. 26 - Prob. 30PCh. 26 - Prob. 31PCh. 26 - Prob. 32PCh. 26 - Prob. 33PCh. 26 - Prob. 34PCh. 26 - Prob. 35PCh. 26 - Prob. 36PCh. 26 - Prob. 37PCh. 26 - Prob. 38PCh. 26 - Prob. 39PCh. 26 - Prob. 40PCh. 26 - If you synthesized the tripeptide Leu-Phe-Ser from...Ch. 26 - Prob. 42PCh. 26 - Prob. 43PCh. 26 - Prob. 44PCh. 26 - Prob. 45DSPCh. 26 - Prob. 46DSPCh. 26 - Prob. 47DSPCh. 26 - Prob. 48DSPCh. 26 - Prob. 49DSPCh. 26 - Prob. 50DSP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Identify the R group of the side chain in the following amino acids that results in the side-chain classification indicated in parentheses see Table 19.1: a. tyrosine neutral, polar b. glutamate acidic, polar c. methionine neutral, nonpolar d. histidine basic, polar e. cysteine neutral, polar f. valine neutral, nonpolararrow_forward22-30 (a) Use the three-letter abbreviations to write a representation of the following tripeptide: (b) Which amino acid is at the C-terminal end, and which is at the N-terminal end?arrow_forward22-71 Which amino acid side chain is most frequently involved in denaturation by reduction?arrow_forward
- Glutathione (G-SH), one of the most common tripeptides in animals, plants, and bacteria, is a scavenger of oxidizing agents. In reacting with oxidizing agents, glutathione is converted to G-S-S-G. (a) Name the amino acids in this tripeptide. (b) What is unusual about the peptide bond formed by the N-terminal amino acid? (c) Write a balanced half-reaction for the reaction of two molecules of glutathione to form a disulfide bond. Is glutathione a biological oxidizing agent or a biological reducing agent? (d) Write a balanced equation for reaction of glutathione with molecular oxygen, O2 to form G-S-S-G and H2O. Is molecular oxygen oxidized or reduced in this process?arrow_forwardHow many different primary structures are possible for a four-amino-acid segment of a protein if the segment contains a. two glycine units and two alanine units b. two glycine units, one alanine unit, and one valine unitarrow_forwardWrite structural formulas to show the form the following amino acids would have in a solution with a pH higher than the amino acid isoelectric point: a.cysteine b.alaninearrow_forward
- 22-91 Which amino acid does not rotate the plane of polarized light?arrow_forwardConsider the tripeptide tyrosylleucylisoleucine. a. Specify its structure using three-letter symbols for the amino acids. b. How many peptide bonds are present within the peptide? c. Which of the amino acid residues has the largest R group? d. Which of the amino acid residues, if any, has an acidic side chain?arrow_forwardConsider the tripeptide leucylvalyltryptophan. a. Specify its structure using three-letter symbols for the amino acids. b. How many peptide bonds are present within the peptide? c. Which of the amino acid residues has the largest R group? d. Which of the amino acid residues, if any, has a basic side chain?arrow_forward
- 22-21 Explain why an amino acid cannot exist in an un-ionized form at any pH.arrow_forwardFollowing is the primary structure of glucagon, a polypeptide hormone of 29 amino acids. Glucagon is produced in the -cells of the pancreas and helps maintain blood glucose levels in a normal concentration range. Which peptide bonds are hydrolyzed when this polypeptide is treated with each reagent? (a) Phenyl isothiocyanate (b) Chymotrypsin (c) Trypsin (d) BrCNarrow_forward22-42 (a) How many atoms of the peptide bond lie in the same plane? (b) Which atoms are they?arrow_forward
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