Question

Enzyme X exhibits maximum activity at pH = 6.50. X shows a fairly sharp decrease in its activity when the pH goes much higher than 11.50. One likely interpretation of this pH activity is that: (a) the enzyme has a metallic cofactor (b) the enzyme is found in gastric secretions (c) a His residue (pKa = 6) on the enzyme is involved in the reaction (d) a Lys residue (pKa = 10.53) on the enzyme is involved in the reaction.

Name: enzyme x exhibits maximum activity at ph650 xshows a fairly sharp decrease in its activity when the ph goes much higher than 1150 one likely interpretation of this ph activity is thata the e 90082
Uploaded: 2022-06-03T11:58:51-08:00
Duration: 2 min 57 s
Channel: Shaiju T
Description: enzyme x exhibits maximum activity at ph650 xshows a fairly sharp decrease in its activity when the ph goes much higher than 1150 one likely interpretation of this ph activity is thata the e 90082

          Enzyme X exhibits maximum activity at pH = 6.50. X shows a fairly sharp decrease in its activity when the pH goes much higher than 11.50. One likely interpretation of this pH activity is that: (a) the enzyme has a metallic cofactor (b) the enzyme is found in gastric secretions (c) a His residue (pKa = 6) on the enzyme is involved in the reaction (d) a Lys residue (pKa = 10.53) on the enzyme is involved in the reaction.

Added by Earl L.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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Solved by Expert Shaiju T

06/03/2022

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50, indicating that a specific residue on the enzyme is likely involved in the reaction at this pH. ** Show more…

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Enzyme X exhibits maximum activity at pH = 6.50. X shows a fairly sharp decrease in its activity when the pH goes much higher than 11.50. One likely interpretation of this pH activity is that: (a) the enzyme has a metallic cofactor (b) the enzyme is found in gastric secretions (c) a His residue (pKa = 6) on the enzyme is involved in the reaction (d) a Lys residue (pKa = 10.53) on the enzyme is involved in the reaction.