Question

Hemoglobin and myoglobin both have a coordinated proximal histidine bound to the metal. The pl of His is closest to: The pKas of His are 1.8, 6.0, 9.2

a) 1.8
b) 9.2
c) 6.0
d) 3.9
e) 7.6

Answer 1

Hemoglobin and myoglobin both have a coordinated proximal histidine bound to the metal. The pKas of histidine are 1.8, 6.0, and 9.2. Among the given options, the pKa of 6.0 is closest to the pH value of histidine.The pKa value closest to the pH of histidine is 6.0.

Step-by-step explanation:

Hemoglobin and myoglobin both have a coordinated proximal histidine bound to the metal. The pKas of histidine are 1.8, 6.0, and 9.2. Among the given options, the pKa of 6.0 is closest to the pH value of histidine, the answer is option c) 6.0.

Hemoglobin and myoglobin both have a coordinated proximal histidine bound to the metal. The pKas of histidine are 1.8, 6.0, and 9.2. Among the given options, the pKa of 6.0 is closest to the pH value of histidine.The pKa value closest to the pH of histidine is 6.0.