BIOCHEMISTRY BOOKS ALC&MOD MST/ET PKG
1st Edition
ISBN: 9780134172507
Author: APPLING
Publisher: Pearson Education
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Question
Chapter 7, Problem 9P
Interpretation Introduction
Interpretation:
In the experiments of Barrick et al. it was observed that replacement of histidine by a noncovalently bonded imidazole not only reduced cooperativity but also increased the oxygen affinity of the hemoglobin.
Concept Introduction:
Hemoglobins have two α chains and two β chains. When O2 binds hemoglobin, there is a transition in the hemoglobin structure from the low-affinity, tense (T) state to the high-affinity, relaxed (R) state. Binding of oxygen to hemoglobin follows an allosteric mechanism.
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