
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Transcribed Image Text:You have isolated a previously unstudied protein, identified its complete structure in
detail, and determined that it catalyzes the breakdown of a large substrate. You
notice it has two binding sites. One of these is large, apparently the bonding site for
the large substrate; the other is small, possibly a binding site for a regulatory
molecule. What do these findings tell you about the mechanism of this protein?
a) It is probably an enzyme that works through competitive inhibition
b) It is probably a structural protein found in cartilage or skeletal tissue
c) It is probably a structural protein that is involved in cell-to-cell adhesion
d) It is probably an enzyme that works through allosteric regulation
e) It is probably a cell membrane transport protein, like an ion channel

Transcribed Image Text:Recent technological advances have made it more feasible than ever to work out the
three-dimensional structure of proteins. There is intense interest in this research
field, called structural biology. Why?
a) Understanding structure should help us understand function
b) Understanding structure can help in the design of drugs that alter the
function of certain proteins
c) Solving a protein's 3-D structure can lead to a better understanding of how
the molecule works-for example, by identifying the active site and
determining if there are regulatory sites
d) All of the reasons described in the other answers apply
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