Which of the following interactions causes a change from the R state (oxy form)to the T state (deoxy form)of hemoglobin?
A)interactions between heme groups
B)protonation of the R-group of His146 on the $\beta$ subunit to allow formation of a salt bridge with Lys40 on the $\alpha$ subunit
C)salt bridge formed by $\alpha$ 1-Arg141 to the carboxylate of $\alpha$ 2Asp126
D)protonation of the $\alpha$ 1 subunit terminal carboxyl group disrupts a salt bridge with $\alpha$ 2Lys 127
E)none of the above

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The Answer of Which of the following interactions causes a change from the R state (oxy form)to the T state (deoxy form)of hemoglobin?
A)interactions between heme groups
B)protonation of the R-group of His146 on the $\beta$ subunit to allow formation of a salt bridge with Lys40 on the $\alpha$ subunit
C)salt bridge formed by $\alpha$ 1-Arg141 to the carboxylate of $\alpha$ 2Asp126
D)protonation of the $\alpha$ 1 subunit terminal carboxyl group disrupts a salt bridge with $\alpha$ 2Lys 127
E)none of the above

Which of the Following Interactions Causes a Change from the R