The crystal structure of a tetrameric hemoglobin in a partial hemichrome state
Riccio, A., Vitagliano, L., di Prisco, G., Zagari, A., Mazzarella, L.(2002) Proc Natl Acad Sci U S A 99: 9801-9806
- PubMed: 12093902 
- DOI: 10.1073/pnas.132182099
- Primary Citation of Related Structures:  
1LA6 - PubMed Abstract: 
Tetrameric hemoglobins are the most widely used systems in studying protein cooperativity. Allosteric effects in hemoglobins arise from the switch between a relaxed (R) state and a tense (T) state occurring upon oxygen release. Here we report the 2.0-A crystal structure of the main hemoglobin component of the Antarctic fish Trematomus newnesi, in a partial hemichrome form ...