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 both (a) and (b) 100-fold lower affinity for the last O2 bound than for the first extensive protein conformational change 100-fold higher affinity for the last O2 bound than for the first both (a) and (b) 100-fold lower affinity for the last O2 bound than for the first ANSWER DOWNLOAD EXAMIANS APP
Allosteric Effects The Hill coefficient (nH) for myoglobin and hemoglobin are respectively 1.2 and 4.5 2.8 and 1.0 4.5 and 1.2 1.0 and 2.8 1.2 and 4.5 2.8 and 1.0 4.5 and 1.2 1.0 and 2.8 ANSWER DOWNLOAD EXAMIANS APP
Allosteric Effects In hemoglobin, allosteric effects occur to minimize oxygen delivery to the tissues for maintaining Fe in the Fe2+ state to maximize oxygen delivery to the tissues only in humans to minimize oxygen delivery to the tissues for maintaining Fe in the Fe2+ state to maximize oxygen delivery to the tissues only in humans ANSWER DOWNLOAD EXAMIANS APP
Allosteric Effects An allosteric activator stabilizes the R state of the protein decreases the binding affinity both (a) and (c) increases the binding affinity stabilizes the R state of the protein decreases the binding affinity both (a) and (c) increases the binding affinity ANSWER DOWNLOAD EXAMIANS APP
Allosteric Effects Bisphosphoglycerate (BPG) cannot bind to the oxygenated R state of hemoglobin because it is displaced from the heme by oxygen it is displaced from the heme by movement of the proximal histidine its binding pocket becomes too small to accommodate BPG BPG binds to the R state with the same affinity as the T state it is displaced from the heme by oxygen it is displaced from the heme by movement of the proximal histidine its binding pocket becomes too small to accommodate BPG BPG binds to the R state with the same affinity as the T state ANSWER DOWNLOAD EXAMIANS APP
Allosteric Effects A protein that shows infinite cooperative for binding of n ligands will show a Hill coefficient (nH) of 0.0 show a Hill coefficient (nH) of n both (b) and (c) only be found in either the unliganded form or the fully liganded form show a Hill coefficient (nH) of 0.0 show a Hill coefficient (nH) of n both (b) and (c) only be found in either the unliganded form or the fully liganded form ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS