... A ˚resolution of cytochrome c oxidase from Paracoccusdenitrificans. Nature 376, 660–669.8. Tsukihara, T., Aoyama, H., Yamashita, E., Tomizaki, T., Yamaguchi, H., Shinzawa-Itoh, K., Nakashima, R., Yaono, ... oxidase. They allow the prediction of twodifferent proton-translocating channels, called the K- and D-channels. The D-channel contains an array of charged orpolar amino acids, and is located within ... study, we describethe synthesis of a highly soluble HPBC salt and its(photo)chemical characterization, and we demonstrate thevalidity of the caged oxygen complex (HPBC-nitrate salt)as a suitable...