HELIX 1 H VAL A 31 ARG A 42 1 12 SHEET 1 A 5 GLN A 19 PRO A 24 0 SHEET 2 A 5 ILE A 10 LEU A 15 -1 SHEET 3 A 5 GLU A 75 VAL A 80 1 SHEET 4 A 5 CYS A 49 GLN A 55 -1 SHEET 5 A 5 GLU A 58 ILE A 62 -1