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I propose to design a new drug which will act as an inhibitor for an enzyme. If

ID: 791230 • Letter: I

Question

I propose to design a new drug which will act as an inhibitor for an enzyme.  If I have used all current information about the mechanism of this enzyme to design this inhibitor and I carefully engineer it with similar chemical properties of the transition state, what type of inhibitor am I attempting to engineer and how will I know if I have succeeded?             

       

                            a.                An uncompetitive inhibitor, collect kinetic data both in the presence and absence of inhibitor and watch for a change in Vmax                                        b.                A competitive inhibitor, collect kinetic data both in the presence and absence of inhibitor and watch for a change in Vmax                                       c.                An uncompetitive inhibitor, collect kinetic data both in the presence and absence of inhibitor and watch for a change in Km                                       d.                A competitive inhibitor, collect kinetic data both in the presence and absence of inhibitor and watch for a change in Km          

Explanation / Answer

A competitive inhibitor, collect kinetic data both in the presence and absence of inhibitor and watch for a change in Km.
Note that: Competitive inhibition is a form of enzyme inhibition where binding of the inhibitor to the active site on the enzyme prevents binding of the substrate and vice versa.
http://faculty.une.edu/com/courses/bionut/distbio/obj-512/Chap9-enzymeinhibition.gif d. A competitive inhibitor, collect kinetic data both in the presence and absence of inhibitor and watch for a change in Km.
Note that: Competitive inhibition is a form of enzyme inhibition where binding of the inhibitor to the active site on the enzyme prevents binding of the substrate and vice versa.
http://faculty.une.edu/com/courses/bionut/distbio/obj-512/Chap9-enzymeinhibition.gif