... Role of the surface charges D72 and K8 in the function and structural stability of the cytochrome c6 from Nostoc sp. PCC 7119 Christian Lange1, Irene Luque2, ... 2005)doi:10.1111/j.1742-4658.2005.04747.xWe investigated the role of electrostatic charges at positions D72 and K8 in the function and structural stability of cytochrome c6 from Nostoc sp. PCC 7119 (cyt c6). A series of mutant ... traces at the three pH conditions for (A)wild-type (), K8A (s), D72A ⁄ K8D (n), D72K ⁄ K8D (,) and D72A ⁄ K8A (e), and for (B) K8D (), D72K (s), D72N (n), D72A (,) and D72K ⁄ K8A (e). The lines...