Allosteric Effects
A protein that binds two ligands in a non-cooperative manner will show

a linear Scatchard Plot
a sigmodial binding curve
both (b) and (c)
a hyperbolic binding curve

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Allosteric Effects
The conformational changes from the T to the R state is initiated by

binding of oxygen to the heme
movement of the F-helix, which contains the proximal His
reorganization of protein-protein contacts between the individual subunits
movement of the proximal histidine towards the heme

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Allosteric Effects
O2 binding to hemoglobin results in

extensive protein conformational change
100-fold higher affinity for the last O2 bound than for the first
100-fold lower affinity for the last O2 bound than for the first
both (a) and (b)

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