1. 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 1gqe d1gqea_ A:127-135,175-185,196-204,213-225,323-329 2b3t d2b3tb1 B:110-120,157-168,179-187,196-208,305-313 1rq0 d1rq0b_ B:486-497,534-547,556-564,573-585,683-689 1rq0 d1rq0c_ C:886-897,934-947,956-964,973-985,1083-1089 1rq0 d1rq0a_ A:86-97,134-147,156-164,173-185,283-289 2fvo d2fvoa1 A:85-97,134-147,156-164,173-185,283-289