Hemoglobin Structure and Function Flashcards

1
Q

Hemoglobinopathies

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2
Q

Hemoglobin vs. Myoglobin

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3
Q

3 Demensional Folding of Myoglobin

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4
Q

What is a Heme Group?

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5
Q

Heme oxidation States and binding

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6
Q

Oxygen binding to heme

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7
Q

Carbon Monoxide Binding to Heme without Distal Histidine

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8
Q

Carbon Monoxide Binding to Heme with Distal Histidine

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9
Q

Comparision of CO and O2 Binding to Myoglobin

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10
Q

Tertiary/Quaternary Structure of Hemoglobin

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11
Q

Features of Quaternary Structure

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12
Q

Cooperativity as a series of Equilibria

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13
Q

Comparision of Oxygen Binding Curves of Rstate and Tstate

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14
Q

What are the major regulators of Cooperative Oxygen Binding

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15
Q

Hemoglobin and Allosteric Sturcutre Function Relationship

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16
Q

Key Residues of Beta Chain Involved in the Allosteric Mechanism of Cooperativity

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17
Q

Interactions of the Deoxy T form

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18
Q

Hemoglobin Key Beta Chain Residues

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19
Q

The Globin Pocket

20
Q

Hemoglobin Conformational Changes

21
Q

Space Filling Model of Hb Oxygenation

22
Q

Comparision of Oxygen Binding Curves for Myoglobin and Hemoglobin

23
Q

Oxygen Binding of Fetal Hemoglobin

24
Q

Relevant Features of 2,3 BPG

25
BPG Binding to Hemoglobin
26
Rotation of the Alpha Beta Dimer
27
Allosteric Effects of BPG
28
How does cooperativity occur?
29
Iron interaction with Oxygen in tense and relaxed states
30
Mechanism of the Tense to Relaxed Form
31
Heme role in modulating protein structure
32
Molecular Basis for Hemoglobin Cooperativity
33
A Mechanism for Oxygen Binding
34
A mechanism for Oxygen Binding Cont.
35
The Bohr Effect
36
Effect of CO2 on O2 affinity of Hemoglobin
37
Effect of Allosteric Effectors on the Oxygen Affinity for Hemoglobin
38
Role of His 146 in Bohr Effect
39
CO2 transported in the blood from tissue to lungs
40
Influence of Bohr Effect on Carbonic Acid and CO2 equlibrium
41
Summary of Mechanism of Coorperativity
42
HbS Sickle Cell Disease
43
Amino Acid Alteration in Sickle Cell
44
Aggregation and Polymerization of HbS
45
Sickle Cell Disease Biochemical Defect