Cooperative Binding
Figure 6
Cartoon representation of the protein hemoglobin in its two conformations: “tensed (T)” on the left corresponding to the deoxy form (derived from Protein Data Bank entry 1LFL) and “relaxed (R)” on the right corresponding to the oxy form (derived from Protein Data Bank entry 1LFT).
Alpha globins are red and green, while beta globins are yellow and orange.