An abnormal pK(a) value of internal histidine of the insulin molecule revealed by neutron crystallographic analysis
Ishikawa, T., Chatake, T., Morimoto, Y., Maeda, M., Kurihara, K., Tanaka, I., Niimura, N.(2008) Biochem.Biophys.Res.Commun. 376: 32-35
- PubMed: 18725203 
- DOI: 10.1016/j.bbrc.2008.08.071
- PubMed Abstract: 
Insulin is stored in pancreatic beta-cell as hexameric form with Zn2+ ions, while the hormonally active form is monomer. The hexamer requires the coordination of Zn2+ ions to the HisB10. In order to reveal the mechanism of the hexamerization of insul ...