1. d.342.1 PH1570-like PH1570-like duplication: two beta(4)-alpha structural repeats, related by pseudo twofold symmetry; two extra helices in the linker region; single 8-standed antiparallel beta-sheet, order: 12348765 2hq4 d2hq4a1 A:19-28,30-43,124-129,131-137,138-152 2hq4 d2hq4b1 B:19-28,30-43,124-129,131-137,138-149