TLS Online TPP Program

#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.

#Section 4: Fundamentals of Biological Engineering
  1. 90%

  2. 95.2%

  3. 89.4%

  4. 5%