Mixed Inhibition: Finding Ki & Ks Relation

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Dassinia
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Homework Statement


I have this mixed inhibition, and knowing that it is a thermodynamic cycle i am asked to find the relation between the different Ki and Ks.
https://scontent.xx.fbcdn.net/hphotos-xfp1/v/t35.0-12/12699252_1024216030972374_1605707906_o.jpg?oh=8b60ba8c953ea368fe8fc09af6fe5eaa&oe=56C77997

Homework Equations

The Attempt at a Solution


I am not even sure to understand the question...
 
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Dassinia said:

Homework Statement


I have this mixed inhibition, and knowing that it is a thermodynamic cycle i am asked to find the relation between the different Ki and Ks.
https://scontent.xx.fbcdn.net/hphotos-xfp1/v/t35.0-12/12699252_1024216030972374_1605707906_o.jpg?oh=8b60ba8c953ea368fe8fc09af6fe5eaa&oe=56C77997
2. Relevant equation

The Attempt at a Solution


I am not even sure to understand the question...

Look at the top line only. What is the equilibrium constant between E and ES?
Well okay since you say you don't understand the question Ks = [E][ S]/[ES] = ?

Now rub out to the arrows of the top line. Leave the others. What is the above-defined equilibrium constant equal to?

Can these equilibrium constants be different?
 
epenguin said:


Look at the top line only. What is the equilibrium constant between E and ES?
Well okay since you say you don't understand the question Ks = [E][ S]/[ES] = ?

Now rub out to the arrows of the top line. Leave the others. What is the above-defined equilibrium constant equal to?

Can these equilibrium constants be different?
Between E and ES Ks=k-1/k1 Is it equal to k'-1/k'1=Ks' ?
 
Dassinia said:
Between E and ES Ks=k-1/k1 Is it equal to k'-1/k'1=Ks' ?

In general no.

Rub out to the arrows of the top line. Leave the others. In fact just write out the scheme again without the k1, k-1 steps. Can't you work out what that gives you for [E][ S]/[ES] ?