1. a.56.1 CO dehydrogenase ISP C-domain like contains 2Fe-2S cluster ! CO dehydrogenase ISP C-domain like core: 4 helices, bundle 1jro d1jroe1 E:47-54,55-62,103-121,124-133,138-152 1jro d1jrog1 G:47-54,55-62,103-121,124-133,138-152 1rm6 d1rm6f1 F:49-54,55-60,103-119,122-134,139-157 1rm6 d1rm6c1 C:49-54,55-60,103-119,122-134,139-157 1sb3 d1sb3c1 C:49-54,55-60,101-119,122-134,139-155 1fiq d1fiqa1 A:51-59,64-72,114-132,135-144,152-164 1jrp d1jrpe1 E:47-54,55-62,103-121,124-133,138-153 1jrp d1jrpc1 C:47-54,55-62,103-121,124-133,138-153 1jro d1jroc1 C:47-54,55-62,103-121,124-133,138-153 1jrp d1jrpg1 G:47-54,55-62,103-121,124-133,138-153 1jrp d1jrpa1 A:47-54,55-62,103-121,124-133,138-153 1jro d1jroa1 A:47-54,55-62,103-121,124-133,138-153 1sb3 d1sb3f1 F:49-54,55-60,101-119,122-134,139-157 3b9j d3b9ja1 A:51-61,62-72,114-132,135-146,152-164 1t3q d1t3qd1 D:56-61,62-67,108-126,129-141,146-156 1v97 d1v97a1 A:51-60,63-72,114-132,135-146,152-165 1v97 d1v97b1 B:51-61,62-72,114-132,135-146,152-165 1t3q d1t3qa1 A:56-61,62-67,108-126,129-141,146-156 1n5x d1n5xa1 A:51-61,62-72,114-132,135-147,152-165 1n5x d1n5xb1 B:51-61,62-72,114-132,135-147,152-165 1fo4 d1fo4b1 B:51-60,63-72,114-132,135-144,152-165 1vdv d1vdva1 A:51-61,62-72,114-132,135-144,152-164 3b9j d3b9ji1 I:51-60,63-72,114-132,135-147,152-164 1vdv d1vdvb1 B:51-61,62-72,114-132,135-144,152-165 1fo4 d1fo4a1 A:51-60,63-72,114-132,135-144,152-165 1ffu d1ffua1 A:50-55,56-61,102-120,123-135,140-157 1ffv d1ffvd1 D:50-55,56-61,102-120,123-135,140-157 1ffu d1ffud1 D:50-55,56-61,102-120,123-135,140-157 1vlb d1vlba1 A:48-53,54-59,101-119,122-134,141-158 1sij d1sija1 A:48-53,54-59,101-119,122-134,141-158 1ffv d1ffva1 A:50-55,56-61,102-114,123-135,140-157 1dgj d1dgja1 A:48-53,54-59,101-119,122-134,141-158 3. d.58.39 Glutamyl tRNA-reductase catalytic, N-terminal domain common fold is elaborated with additional secondary structures ! Ferredoxin-like alpha+beta sandwich with antiparallel beta-sheet; (beta-alpha-beta)x2 1gpj d1gpja3 A:3-11,49-57,77-91,99-117,120-142