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#Question id: 361


Calculate the percentage of histidine that has its imidazole side chain protonated at pH 7.3. The pKa values for histidine are pK1 = 1.8, pK2 (imidazole) = 6.0, and pK3 = 9.2.

#XL - Q Biochemistry
  1. 90%

  2. 95.2%

  3. 89.4%

  4. 5%


Answer:- Option(s): 2


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