1. e.53.1 QueA-like QueA-like 2 domains; d1 (1-64,174-335) [alpha/beta; 3 layers, a/b/a; mixed beta sheet of 9 strands, order: 219863457; strands 1, 5 and 8 are antiparallel to the rest]; d2 (65-142) [all-beta; barrel, closed (n=6, S=10); greek-key; topologically similar to the split barrel fold (scop_cf 50474) 1vky d1vkyb_ B:26-34,35-43,296-307,307-322,330-335 1vky d1vkya_ A:26-34,35-43,296-307,307-322,330-335 1wdi d1wdia_ A:27-33,39-45,306-317,317-332,340-345