41. Based on the nature of the electron transfer proteins, CYPs can be classified into several groups: 42. This electron transfer is demonstrated in image 8. 43. In most cases electron transfer can be assumed to be much faster than the chemical reactions. 44. The aluminium is the ultimate electron donor, and the mercury serves to mediate the electron transfer . 45. The enzyme functions as the first electron transfer protein of mitochondrial P450 systems such as P450scc. 46. The flavins are only about 4?apart, which suggests that electron transfer is direct between them. 47. Electron transfer dissociation takes place in an ion trap mass spectrometer with an electrospray ionization source.48. The sensing electrode acts as a platform for electron transfer to or from the reference half cell. 49. The second step is the transfer of the first electron from NADPH via an electron transfer chain. 50. Rubredoxins perform one-electron transfer processes.