Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Question
Chapter 1, Problem 73TQ
Summary Introduction
To review:
The number of possible decapeptides (a molecule with 10 amino acid residues linked by a peptide bond) that can be synthesized from 20 standard amino acids and the time taken by the task to calculate molecular structure of all the decapeptides.
Introduction:
There are hundreds and thousands of naturally occurring amino acids, but there are only 20 standard amino acids that take part in protein synthesis. Amino acids are joined to each other by a peptide bond. The resulting peptide formedby the
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Multisubunit proteins in which some or all of the subunitsare identical are referred to as _______________________.
Question 25
Calculate the net charges of the following peptides at pH 7.4. Indicate which amino acids bear chuarged side chans
a) NH2-Asp-Leu-Phe-Ala-Lys-Pro-Glu-Gly-COOH
b) NH2-GIn-Glu-Lys-Tyr-Trp-Arg-Ala-Leu-COOH
DELL
Question 4. Imagine the main chain of a protein bends
back on itself so that two amino acid residues R1 and R2
come close to each other.
In the table below are four possibilities for what R1 and
R2 might be. In each case, decide whether a specific
interaction could form between the residues. If a specific
interaction could form, give the name of the interaction.
R₁
cysteine
tyrosine
threonine
arginine
R₂
cysteine
phenylalanine
glutamine
aspartate
specific
interaction?
OO
yes
O yes
O no
no
OO
O yes
no
yes
no
name of specific
interaction
0
П
0
0
Chapter 1 Solutions
Biochemistry: The Molecular Basis of Life
Ch. 1 - Prob. 1RQCh. 1 - Prob. 2RQCh. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Prob. 5RQCh. 1 - Prob. 6RQCh. 1 - Prob. 7RQCh. 1 - Prob. 8RQCh. 1 - Prob. 9RQCh. 1 - Prob. 10RQ
Ch. 1 - Prob. 11RQCh. 1 - Prob. 12RQCh. 1 - Prob. 13RQCh. 1 - Prob. 14RQCh. 1 - Prob. 15RQCh. 1 - Prob. 16RQCh. 1 - Prob. 17RQCh. 1 - Prob. 18RQCh. 1 - Prob. 19RQCh. 1 - Prob. 20RQCh. 1 - Prob. 21RQCh. 1 - Prob. 22RQCh. 1 - Prob. 23RQCh. 1 - Prob. 24RQCh. 1 - Prob. 25RQCh. 1 - Prob. 26RQCh. 1 - Prob. 27RQCh. 1 - Prob. 28RQCh. 1 - Prob. 29RQCh. 1 - Prob. 30RQCh. 1 - Prob. 31RQCh. 1 - Prob. 32RQCh. 1 - Prob. 33RQCh. 1 - Prob. 34RQCh. 1 - Prob. 35RQCh. 1 - Prob. 36RQCh. 1 - Prob. 37RQCh. 1 - Prob. 38RQCh. 1 - Prob. 39RQCh. 1 - Prob. 40RQCh. 1 - Prob. 41RQCh. 1 - Prob. 42RQCh. 1 - Prob. 43RQCh. 1 - Prob. 44RQCh. 1 - Prob. 45RQCh. 1 - Prob. 46RQCh. 1 - Prob. 47RQCh. 1 - Prob. 48FBCh. 1 - Prob. 49FBCh. 1 - Prob. 50FBCh. 1 - Prob. 51FBCh. 1 - Prob. 52FBCh. 1 - Prob. 53FBCh. 1 - Prob. 54FBCh. 1 - Prob. 55FBCh. 1 - Prob. 56FBCh. 1 - Prob. 57FBCh. 1 - Prob. 58SACh. 1 - Prob. 59SACh. 1 - Prob. 60SACh. 1 - Prob. 61SACh. 1 - Prob. 62SACh. 1 - Prob. 63TQCh. 1 - Prob. 64TQCh. 1 - Prob. 65TQCh. 1 - Prob. 66TQCh. 1 - Prob. 67TQCh. 1 - Prob. 68TQCh. 1 - Prob. 69TQCh. 1 - Prob. 70TQCh. 1 - Prob. 71TQCh. 1 - Prob. 72TQCh. 1 - Prob. 73TQ
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