HELIX 1 H LEU A 21 GLN A 27 1 7 HELIX 2 H ARG A 42 ALA A 48 1 7 HELIX 3 H SER A 61 LYS A 74 1 14 HELIX 4 H SER A 107 TYR A 118 1 12 HELIX 5 H LEU A 153 GLU A 159 1 7 SHEET 1 A 7 ILE A 78 VAL A 81 0 SHEET 2 A 7 GLU A 53 VAL A 57 1 SHEET 3 A 7 LYS A 32 CYS A 35 1 SHEET 4 A 7 GLY A 97 ILE A 101 1 SHEET 5 A 7 GLY A 125 PHE A 132 1 SHEET 6 A 7 LYS A 184 GLY A 192 -1 SHEET 7 A 7 TRP A 165 ASN A 174 -1