1.12.2.1 5 6 cytochrome c3-dependent H2 evolution 395561 1.12.2.1 6 - H2 production 395563 1.12.2.1 6 7 methyl viologen-dependent H2 evolution 395561 1.12.2.1 6 8 H-2H exchange 395561 1.12.2.1 6.5 - H2-evolution assay 395560 1.12.2.1 7 - assay at 654261, 654899 1.12.2.1 7.5 8 - 701586 1.12.2.1 8 - - 690013 1.12.2.1 8 9 cytochrome c3 reduction by H2 395561