Using the graph data I estimated Slope = 2.8, about the same as the steeper part of the maternal hemoglobin, does this represent a strong positive cooperativity between enzyme subunits?
Using the graph data I estimated Slope = 2.8, about the same as the steeper part of the maternal hemoglobin, does this represent a strong positive cooperativity between enzyme subunits?
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
Related questions
Question
Using the graph data I estimated Slope = 2.8, about the same as the steeper part of the maternal hemoglobin, does this represent a strong positive cooperativity between enzyme subunits?

Transcribed Image Text:pO₂
10
15
20
25
30
35
50
100
Y
0.2
0.4
0.6
0.8
0.85
0.9
0.95
1.0
log pO₂
1.00
1.18
1.30
1.40
1.48
1.54
1.70
2.00
log (Y/(1-Y))
-0.60
-0.18
0.18
0.60
0.75
0.95
1.28
undefined

Transcribed Image Text:log (Y/(1-Y))
1.5
1
-0.5
-1
0.5
Fetal Hemoglobin Hill Plot
1
log po₂
1.5
2
2.5
5. Estimate the slope(s) of the Hill plot, for the portion(s) that is (are) clearly linear. This number
is the Hill coefficient, symbolized n or ní. For instance, for the maternal hemoglobin plot above,
the Hill coefficients are 1.0 and 2.8 (the steeper part in the middle). If the Hill coefficient = 1.0,
then there is no cooperativity between enzyme subunits. If the coefficient is greater than 1.0,
there is positive cooperativity. If the coefficient is less than 1.0, there is negative cooperativity.
Comment on the type and degree of cooperativity shown in the fetal hemoglobin, compared to
the maternal hemoglobin.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps

Recommended textbooks for you

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
Biochemistry
ISBN:
9781464126116
Author:
David L. Nelson, Michael M. Cox
Publisher:
W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…
Biochemistry
ISBN:
9781118918401
Author:
Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher:
WILEY

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
Biochemistry
ISBN:
9781464126116
Author:
David L. Nelson, Michael M. Cox
Publisher:
W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…
Biochemistry
ISBN:
9781118918401
Author:
Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher:
WILEY

Biochemistry
Biochemistry
ISBN:
9781305961135
Author:
Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:
Cengage Learning

Biochemistry
Biochemistry
ISBN:
9781305577206
Author:
Reginald H. Garrett, Charles M. Grisham
Publisher:
Cengage Learning

Fundamentals of General, Organic, and Biological …
Biochemistry
ISBN:
9780134015187
Author:
John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher:
PEARSON