Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
8th Edition
ISBN: 9780134015187
Author: John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher: PEARSON
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Chapter 18, Problem 18.109GP
Interpretation Introduction

Interpretation:

Solubility property in water should be explained when Peptide containing alanine and leucine or a peptide containing lysine and aspartic acid.

Concept introduction:

  • Many amino acids are linked together through amide bonds to form a biologically large molecule known to be proteins.
  • Amino functional group is (NH2) and carboxyl functional group is (COOH) and a R (alkyl) group is considered as side chain, when all these are bonded to same carbon atom.
  • In protein the amide bond can link together with two amino acids to form a peptide bond (O=CNH).
  • Dipeptide results from the linkage of two amino acids through one peptide bond.
  • Tertiary structure of protein is the noncovalent interaction that holds the single protein in a three dimensional shape takes place primarily between amino acid side chain or side chain thiol groups.
  • Hydrocarbon side chain are attracted to each other by dispersion forces caused as a result of uneven distribution of electrons give rise to hydrophobic interaction.
  • Hydrogen bonding is the electrostatic force of attraction between hydrogen and the electronegative atom.

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Consider the following peptide: Lys-Tyr-Glu-His-Arg-Ala-Asp-Arg-Glu-Tyr-Lys a) What is the net charge of this peptide at pH=1? Show your work. b) What is the net charge of this peptide at pH=14? Show your work.
Name three biologically active peptides. Mention their functions.
identify the interaction that may be produced between the side chain of amino acid residues found at the N-terminus and the C-terminus of the peptide. List all possible peptides that can be formed from the given peptide (use three character/letter abbreviations for each amino acid, i.e., Ala-Gly-Val).  NOTE: Any excess will be deducted to the correct answers.  Be careful in evaluating your answers.

Chapter 18 Solutions

Fundamentals of General, Organic, and Biological Chemistry (8th Edition)

Ch. 18.3 - Prob. 18.11PCh. 18.3 - Prob. 18.12PCh. 18.4 - The proteins collagen, bovine insulin, and human...Ch. 18.4 - Prob. 18.2CIAPCh. 18.4 - Prob. 18.13PCh. 18.4 - Prob. 18.14PCh. 18.5 - Valine is an amino acid with a nonpolar side...Ch. 18.5 - Tripeptides are composed of three amino acids...Ch. 18.5 - Prob. 18.17PCh. 18.5 - Identify the amino acids in the following...Ch. 18.5 - Prob. 18.19PCh. 18.5 - Prob. 18.3CIAPCh. 18.5 - Prob. 18.4CIAPCh. 18.5 - Two of the most complete (balanced) proteins...Ch. 18.6 - Prob. 18.6CIAPCh. 18.6 - Prob. 18.7CIAPCh. 18.6 - (a)What atoms are present in a planar unit in a...Ch. 18.6 - Prob. 18.21PCh. 18.6 - Prob. 18.22PCh. 18.7 - Prob. 18.23PCh. 18.7 - Prob. 18.24PCh. 18.7 - Complete the following two sentences with either...Ch. 18.7 - Prob. 18.26KCPCh. 18.8 - Which of the following pairs of amino acids can...Ch. 18.8 - Look at Table 18.3 and identify the type of...Ch. 18.8 - In Figure 18.3, identify the amino acids that have...Ch. 18.8 - Prob. 18.30PCh. 18.9 - Prob. 18.31PCh. 18.10 - Another endoprotease is trypsin. Trypsin...Ch. 18.10 - Prob. 18.33PCh. 18.10 - Prob. 18.8CIAPCh. 18.10 - Prob. 18.9CIAPCh. 18 - Draw the structure of the following amino acids,...Ch. 18 - Prob. 18.35UKCCh. 18 - Prob. 18.36UKCCh. 18 - Prob. 18.37UKCCh. 18 - Prob. 18.38UKCCh. 18 - Threonine has two chiral centers. Draw L-threonine...Ch. 18 - Name four biological functions of proteins in the...Ch. 18 - Prob. 18.41APCh. 18 - Prob. 18.42APCh. 18 - Prob. 18.43APCh. 18 - Prob. 18.44APCh. 18 - Prob. 18.45APCh. 18 - Prob. 18.46APCh. 18 - Prob. 18.47APCh. 18 - Draw leucine and identify any chiral carbon atoms...Ch. 18 - Prob. 18.49APCh. 18 - Prob. 18.50APCh. 18 - Is histidine hydrophilic or hydrophobic? Explain...Ch. 18 - Prob. 18.52APCh. 18 - At neutral pH, which of the following amino acids...Ch. 18 - Prob. 18.54APCh. 18 - Prob. 18.55APCh. 18 - Prob. 18.56APCh. 18 - Prob. 18.57APCh. 18 - Proteins are usually least soluble in water at...Ch. 18 - Prob. 18.59APCh. 18 - Prob. 18.60APCh. 18 - Prob. 18.61APCh. 18 - Prob. 18.62APCh. 18 - Prob. 18.63APCh. 18 - (a)Identify the amino acids present in the peptide...Ch. 18 - Prob. 18.65APCh. 18 - Prob. 18.66APCh. 18 - Prob. 18.67APCh. 18 - Prob. 18.68APCh. 18 - Prob. 18.69APCh. 18 - Prob. 18.70APCh. 18 - Prob. 18.71APCh. 18 - Prob. 18.72APCh. 18 - Prob. 18.73APCh. 18 - Prob. 18.74APCh. 18 - Prob. 18.75APCh. 18 - What kind of bond would you expect between chains...Ch. 18 - Is the bond formed between each pair in Problem...Ch. 18 - Prob. 18.78APCh. 18 - Prob. 18.79APCh. 18 - Prob. 18.80APCh. 18 - Prob. 18.81APCh. 18 - Prob. 18.82APCh. 18 - Prob. 18.83APCh. 18 - Prob. 18.84APCh. 18 - Prob. 18.85APCh. 18 - Prob. 18.86APCh. 18 - Prob. 18.87APCh. 18 - Prob. 18.88APCh. 18 - Give an example of a protein that has quaternary...Ch. 18 - Prob. 18.90APCh. 18 - Prob. 18.91APCh. 18 - Prob. 18.92APCh. 18 - Prob. 18.93APCh. 18 - Prob. 18.94APCh. 18 - Prob. 18.95APCh. 18 - Prob. 18.96APCh. 18 - Prob. 18.97APCh. 18 - Prob. 18.98CPCh. 18 - Prob. 18.99CPCh. 18 - Prob. 18.100CPCh. 18 - Prob. 18.101CPCh. 18 - Prob. 18.102CPCh. 18 - Prob. 18.103CPCh. 18 - Prob. 18.104CPCh. 18 - Prob. 18.105CPCh. 18 - Prob. 18.106CPCh. 18 - Prob. 18.107CPCh. 18 - Prob. 18.108CPCh. 18 - Prob. 18.109GPCh. 18 - Prob. 18.110GPCh. 18 - Prob. 18.111GPCh. 18 - Prob. 18.112GP
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