does BPG bind to deoxyhemoglobin only?why BPG does not bind to oxyhemoglobin? what is chemical structure difference between deoxyhemoglobin and oxyhemoglobin?

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
does BPG bind to deoxyhemoglobin only?why BPG does not bind to oxyhemoglobin? what is chemical structure difference between deoxyhemoglobin and oxyhemoglobin?
#nid
100-
Percent of saturation
50-
0-
No BPG
0₂
0
B₂
With BPG
BPG also plays a role in supplying a growing fetus with oxygen. The fetus ob-
tains oxygen from the mother's bloodstream via the placenta. Fetal hemoglobin
(Hb F) has a higher affinity for oxygen than does maternal hemoglobin, allow-
ing for efficient transfer of oxygen from the mother to the fetus (Figure 4.29).
BPG
80 100
20
60
40
O₂ pressure (po, in torrs)
N+
Figure 4.28 A comparison of the oxygen-binding
properties of hemoglobin in the presence and absence
of BPG. Note that the presence of the BPG markedly
decreases the affinity of hemoglobin for oxygen.
enistor to subbun 4-5 Quaternary Structure of Proteins
@
Percent of saturation
B₁
on 24 ought 100 Fetal hemoglobin
50-
1621
a1
0+
0
Figure 27 The binding of BPG to
deoxyhemoglobin. Note the electrostatic
intentions between the BPG and the protein.
(lisation, Irving Geis. Rights owned by Howard
Hughes Medical Institute. Not to be reproduced
without permission.)
Maternal
hemoglobin
97
O, flows from
maternal
oxyhemoglobin
to fetal
deoxyhemoglobin
18 AA
simenA Ils obbl2
A
O₂ pressure (po, in torrs)
Figure 4.29 A comparison of the oxygen-binding capacityque
p
of fetal and maternal hemoglobins. Fetal hemoglobin binds bould hyr si ayaw
less strongly to BPG and, consequently, has a greater affinity
for oxygen than does maternal hemoglobin.
Transcribed Image Text:#nid 100- Percent of saturation 50- 0- No BPG 0₂ 0 B₂ With BPG BPG also plays a role in supplying a growing fetus with oxygen. The fetus ob- tains oxygen from the mother's bloodstream via the placenta. Fetal hemoglobin (Hb F) has a higher affinity for oxygen than does maternal hemoglobin, allow- ing for efficient transfer of oxygen from the mother to the fetus (Figure 4.29). BPG 80 100 20 60 40 O₂ pressure (po, in torrs) N+ Figure 4.28 A comparison of the oxygen-binding properties of hemoglobin in the presence and absence of BPG. Note that the presence of the BPG markedly decreases the affinity of hemoglobin for oxygen. enistor to subbun 4-5 Quaternary Structure of Proteins @ Percent of saturation B₁ on 24 ought 100 Fetal hemoglobin 50- 1621 a1 0+ 0 Figure 27 The binding of BPG to deoxyhemoglobin. Note the electrostatic intentions between the BPG and the protein. (lisation, Irving Geis. Rights owned by Howard Hughes Medical Institute. Not to be reproduced without permission.) Maternal hemoglobin 97 O, flows from maternal oxyhemoglobin to fetal deoxyhemoglobin 18 AA simenA Ils obbl2 A O₂ pressure (po, in torrs) Figure 4.29 A comparison of the oxygen-binding capacityque p of fetal and maternal hemoglobins. Fetal hemoglobin binds bould hyr si ayaw less strongly to BPG and, consequently, has a greater affinity for oxygen than does maternal hemoglobin.
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781319114671
Author:
Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:
W. H. Freeman
Lehninger Principles of Biochemistry
Lehninger Principles of Biochemistry
Biochemistry
ISBN:
9781464126116
Author:
David L. Nelson, Michael M. Cox
Publisher:
W. H. Freeman
Fundamentals of Biochemistry: Life at the Molecul…
Fundamentals of Biochemistry: Life at the Molecul…
Biochemistry
ISBN:
9781118918401
Author:
Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher:
WILEY
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781305961135
Author:
Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:
Cengage Learning
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781305577206
Author:
Reginald H. Garrett, Charles M. Grisham
Publisher:
Cengage Learning
Fundamentals of General, Organic, and Biological …
Fundamentals of General, Organic, and Biological …
Biochemistry
ISBN:
9780134015187
Author:
John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher:
PEARSON