Metal induced structural changes observed in hexameric insulin
Sreekanth, R., Pattabhi, V., Rajan, S.S.(2009) Int J Biol Macromol 44: 29-36
- PubMed: 18977386 
- DOI: 10.1016/j.ijbiomac.2008.09.019
- Primary Citation of Related Structures:  
2R34, 2R35, 2R36 - PubMed Abstract: 
The metal ions in insulin hexamer play a crucial role in the T to R conformational transitions. We have determined the crystal structures of 2Mn2+, 1Rb1+ and 4Ni2+ human arg-insulin and compared them with the 2Zn2+ structure. The first two structures exist in the T3R3f state like the native 2Zn2+ arg-insulin, while the 4Ni2+ adopts a T6 conformation ...