2. d.106.1 SCP-like SCP-like alpha-beta(3)-(crossover)-beta-(alpha)-beta; 3 layers: a/b/a; antiparallel beta-sheet of 5 strands; order: 32145 1c44 d1c44a_ A:7-24,32-41,44-55,70-76,76-86 1pz4 d1pz4a_ A:3-19,27-37,38-49,61-67,67-77 1ikt d1ikta_ A:6-23,31-41,42-53,69-75,75-85 2c0l d2c0lb1 B:27-44,52-61,64-75,90-96,96-106 2hv2 d2hv2b1 B:287-295,302-310,318-326,344-349,349-359 2hv2 d2hv2c1 C:287-295,302-310,318-326,345-349,349-359 2i00 d2i00d1 D:301-309,317-323,331-340,352-358,358-368 2cg2 d2cg2a1 A:539-551,560-569,570-580,595-601,601-611 2i00 d2i00a1 A:301-309,317-323,331-340,352-358,358-368 2i00 d2i00f1 F:301-309,317-323,331-340,352-358,358-368 2hv2 d2hv2e1 E:287-295,302-310,318-327,344-349,349-359 2cg3 d2cg3a1 A:539-551,560-569,570-580,595-601,601-611 2hv2 d2hv2d1 D:287-295,302-310,318-327,344-349,349-359 2hv2 d2hv2a1 A:287-295,302-310,318-327,345-349,349-359 2i00 d2i00c1 C:301-309,317-323,331-340,352-358,358-368 2hv2 d2hv2f1 F:287-295,302-310,318-327,344-349,349-359 2nsg d2nsga2 A:162-181,185-192,193-199,205-210,211-221 2nsf d2nsfa2 A:162-181,185-192,193-199,205-210,211-221 2ozg d2ozga1 A:291-300,306-315,321-331,343-347,347-357 2i00 d2i00b1 B:301-309,317-324,330-340,352-358,358-368 2i00 d2i00e1 E:301-309,317-324,330-340,352-358,358-368 5. 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 1rq0 d1rq0a_ A:97-120,156-164,173-185,283-289,304-311 2b3t d2b3tb1 B:121-143,179-187,196-208,305-313,328-335 1gqe d1gqea_ A:137-160,196-204,213-225,323-329,344-351 1rq0 d1rq0b_ B:497-520,556-564,573-585,683-689,704-711 2fvo d2fvoa1 A:97-120,156-164,173-185,283-289,304-311 1rq0 d1rq0c_ C:897-920,956-964,973-985,1083-1089,1104-1111 1gqe d1gqea_ A:137-160,196-204,213-225,323-329,352-364 1rq0 d1rq0a_ A:97-120,156-164,173-185,283-289,312-328 1rq0 d1rq0b_ B:497-520,556-564,573-585,683-689,712-728 2fvo d2fvoa1 A:97-120,156-164,173-185,283-289,312-328 1rq0 d1rq0c_ C:897-920,956-964,973-985,1083-1089,1112-1128