Biology Reference
In-Depth Information
60
There are relative movements between the and as well
structural changes involving salt-bridges, iron atoms, etc. Many
of the recent experimental findings point to the idea that oxygen molecules
would initially bind to the first. When both contain
oxygen molecules, the subsequent configuration changes would then allow
to bind oxygen molecules. In other words, we have:
where the underlines indicate the presence of bound oxygen molecules on
the subunits. Thus, the assumption in the MWC model of and
being identical has to be modified. Consequently, the equations
for the equilibrium constants become:
