Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Chapter 4.7, Problem 1MQ
Summary Introduction
Proteins are composed
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Write the structure of the following peptides:
a) glycyl alanine
b) tyrosyl alanyl glycine
c) phenylalanyl tyrosyl seryl histidine
Draw the chemical structure of an alanine pentapeptide.
Indicate the location of each peptide bond.
Label the phi () and psi () dihedral angles.
Name and briefly define the four levels of protein structure.
How many different tripeptides can be formed from three different amino acids, glutamine, histidine, and lysine? Draw the possible structures. Using three-letter abbreviations, give the names for all of the possible tripeptides.
Chapter 4 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 4.1 - What is a genome and what is it composed of? What...Ch. 4.1 - Define the terms complementary and antiparallel as...Ch. 4.1 - Why is supercoiling essential to a bacterial cell?...Ch. 4.1 - Describe the central dogma of molecular biology....Ch. 4.2 - Approximately how large is the Escherichia coli...Ch. 4.2 - Prob. 2MQCh. 4.2 - Prob. 3MQCh. 4.2 - Prob. 1CRCh. 4.3 - Prob. 1MQCh. 4.3 - To which end (5 or 3) of a newly synthesized...
Ch. 4.3 - Prob. 3MQCh. 4.3 - What are the functions of DNA Pol I and III and...Ch. 4.3 - What is meant by the term semiconservative...Ch. 4.4 - Prob. 1MQCh. 4.4 - Prob. 2MQCh. 4.4 - Prob. 3MQCh. 4.4 - Prob. 1CRCh. 4.5 - What enzyme catalyzes transcription? What is a...Ch. 4.5 - Prob. 2MQCh. 4.5 - Prob. 3MQCh. 4.5 - Prob. 4MQCh. 4.5 - Prob. 1CRCh. 4.6 - What three major components make up an archaeal...Ch. 4.6 - Prob. 2MQCh. 4.6 - Prob. 3MQCh. 4.6 - How does the archaeal RNA polymerase differ from...Ch. 4.7 - Prob. 1MQCh. 4.7 - Differentiate between the different classes of...Ch. 4.7 - Prob. 3MQCh. 4.7 - Describe the two types of secondary structure a...Ch. 4.8 - Prob. 1MQCh. 4.8 - What is the function of the acceptor stem of a...Ch. 4.8 - Prob. 3MQCh. 4.8 - Prob. 1CRCh. 4.9 - Prob. 1MQCh. 4.9 - Prob. 2MQCh. 4.9 - Prob. 3MQCh. 4.9 - Why is the genetic code a degenerate code? What is...Ch. 4.10 - What are the components of a ribosome? What...Ch. 4.10 - How is a completed polypeptide chain released from...Ch. 4.10 - How does tmRNA free stalled ribosomes?Ch. 4.10 - Where on the ribosome do tRNAs bind, and what is...Ch. 4.11 - What are molecular chaperones and why are they...Ch. 4.11 - What macromolecules are protected by heat shock...Ch. 4.11 - How do chaperones assist the Escherichia coli cell...Ch. 4.11 - What proteins are involved in refolding misfolded...Ch. 4.12 - Prob. 1MQCh. 4.12 - Prob. 2MQCh. 4.12 - Prob. 3MQCh. 4.12 - Prob. 1CRCh. 4.13 - Prob. 1MQCh. 4.13 - Prob. 2MQCh. 4.13 - Prob. 3MQCh. 4.13 - Prob. 1CRCh. 4 - The genome of the bacterium Neisseria gonorrhoeae...Ch. 4 - Compare and contrast the activity of DNA and RNA...Ch. 4 - What would be the result (in terms of protein...
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- Write the chemical structure of peptide containing the following amino acid PRO-SER-GLY-LEUarrow_forwardHow many peptide bonds are present in the peptide shown below?arrow_forwardDraw the two dipeptides possible when glutamine and cysteine undergo dehydration to form a peptide bond. Draw the dipeptides in zwitterionic form.arrow_forward
- Describe the basic general structure of an l-a-amino acid,and draw its structurearrow_forwardWrite the structure of the following peptides Expanded structure. Use any other ink for peptide bond. [For your reference download all the amino acids with the three and single letter symbol] a) leucyl glycyl leucyl alanine b) histidyl tyrosyl alanyl glycine c) glycyl phenylalanyl tyrosyl seryl histidinearrow_forwardDraw the structural formula of the oligopeptide if the amino acids are arginine, glutamine, glycine, methionine and glutamic acid considering the first amino acid is the N-terminusarrow_forward
- Locate the peptide bond in the dipeptide shown in the balland-stick model, and identify the amino acids that form the dipeptide. Name the dipeptide using the three-letter abbreviations for the amino acids.arrow_forwardForm DIANINE name using the one-letter symbol and draw it as a peptide chain. Name the peptide as well.arrow_forwardDraw the structure of the NDPH peptide at pH 2, with the prolyl peptide bond in the cis configuration, and all other peptide bonds in the trans configuration.arrow_forward
- Draw the structure of the dipeptide Thr-Cys at pH7. Clearly indicate the following: the amino terminus (N) the carboxyl terminus (C) a peptide bond an α-carbon atomarrow_forwardDraw the structure of peptide with the following amino acids Gly-Leu-Ala-Gly-Pro-Hyp. The structure formed of the peptide is most likely a? Please explain. Thank you!arrow_forwardIdentify and encircle the peptide bonds in this polypeptide (Asp-Sec-Leu-Cys-Glu).arrow_forward
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