1. d.75.2 DNA repair protein MutS, domain I MutS N-terminal domain-like beta(2)-alpha-beta(2)-alpha-beta(2); 2 layers, alpha/beta 1oh7 d1oh7a4 A:11-25,27-34,35-41,89-97,106-115 1wbb d1wbba4 A:11-25,27-34,35-41,89-97,106-115 1wbd d1wbda4 A:11-25,27-34,35-41,89-97,106-115 1nne d1nneb4 B:1014-1028,1030-1037,1038-1044,1091-1098,1109-1117 1oh5 d1oh5a4 A:11-25,27-34,35-41,89-97,106-115 1e3m d1e3ma4 A:11-25,27-34,35-41,89-97,106-115 1fw6 d1fw6b4 B:1014-1028,1030-1037,1038-1044,1091-1098,1109-1117 1oh6 d1oh6a4 A:11-25,27-34,35-41,89-97,106-115 1ng9 d1ng9a4 A:11-25,27-34,35-41,89-97,106-115 1wb9 d1wb9a4 A:11-25,27-34,35-41,89-97,106-115 1w7a d1w7aa4 A:11-25,27-34,35-41,89-97,106-115 1ewq d1ewqb4 B:1014-1028,1030-1037,1038-1044,1091-1098,1109-1117 1ng9 d1ng9b4 B:11-25,27-34,35-41,88-95,108-116 1oh8 d1oh8a4 A:11-25,27-34,35-41,89-97,106-115 1ewq d1ewqa4 A:14-28,30-37,38-44,91-99,108-117 1nne d1nnea4 A:14-28,30-37,38-44,91-98,109-117 1fw6 d1fw6a4 A:14-28,30-37,38-44,91-98,109-117 1oh5 d1oh5b4 B:14-25,27-34,35-41,88-94,109-116 1w7a d1w7ab4 B:14-25,27-34,35-40,88-94,109-116 1oh7 d1oh7b4 B:14-25,27-34,35-41,88-94,109-116 1oh8 d1oh8b4 B:14-25,27-34,35-40,88-94,109-116 1oh6 d1oh6b4 B:14-25,27-34,35-40,88-94,109-116 1e3m d1e3mb4 B:14-25,27-34,35-40,88-94,109-116 12. e.38.1 Release factor Release factor 4 domains: (1) 3-helical bundle; (2) alpha+beta of ferredoxin-like fold (3 and 4) alpha+beta of dsRDB-like fold 2b3t d2b3tb1 B:121-143,179-187,196-208,305-313,314-321 1gqe d1gqea_ A:137-160,196-204,213-225,323-329,330-337 1rq0 d1rq0b_ B:497-520,556-564,573-585,683-689,690-697 1rq0 d1rq0a_ A:97-120,156-164,173-185,283-289,290-297 1rq0 d1rq0c_ C:897-920,956-964,973-985,1083-1089,1090-1097 2fvo d2fvoa1 A:97-120,156-164,173-185,283-289,290-297 13. d.116.1 YbaK/ProRS associated domain YbaK/ProRS associated domain core: alpha-beta-alpha-beta(2)-(alpha-beta)2-alpha-beta(2)-alpha-beta; 3 layers; bifurcated mixed sheet 1vki d1vkia_ A:33-45,46-57,59-68,132-137,141-147 1vki d1vkib_ B:33-45,46-57,59-68,132-137,141-147 1dbx d1dbxb_ B:31-38,43-53,58-66,125-130,133-140 1dbx d1dbxa_ A:31-38,43-53,58-66,125-130,133-140 1dbu d1dbua_ A:31-38,43-53,58-66,125-130,133-140