Top Posters
Since Sunday
g
3
3
2
J
2
p
2
m
2
h
2
s
2
r
2
d
2
l
2
a
2
SlideshowReport

A simplified view of ligand binding and conformation energies in hemoglobin

Description
The deoxy (T) conformation is favored when no ligands are bound, due to the increased number of noncovalent interactions in the T state.

As YO2 increases (i.e., more ligands are bound) the energy provided by formation of the Fe-O2 bond stabilizes the R conformation relative to the T conformation.

The energetic cost of breaking stabilizing interactions in the deoxy state is paid by the formation of Fe-O2 bonds in the oxy state.
Related Images
Add Comment
Explore
Post your homework questions and get free online help from our incredible volunteers
  1056 People Browsing
 114 Signed Up Today
Your Opinion
Who's your favorite biologist?
Votes: 586