Crystal Structure of T State Haemoglobin with Oxygen Bound at All Four Haems.
Paoli, M., Liddington, R., Tame, J., Wilkinson, A., Dodson, G.(1996) J Mol Biol 256: 775
- PubMed: 8642597 
- DOI: 10.1006/jmbi.1996.0124
- Primary Citation of Related Structures:  
1GZX - PubMed Abstract: 
The cooperative binding of oxygen by haemoglobin results from restraints on ligand binding in the T state. The unfavourable interactions made by the ligands at the haems destabilise the T state and favour the high affinity R state. The T <==> R equilibrium leads, in the presence of a ligand, to a rapid increase in the R state population and therefore generates cooperative binding ...