HELIX 1 H ARG A 10 GLN A 19 1 10 HELIX 2 H ALA A 26 ASP A 31 1 6 HELIX 3 H GLU A 40 TRP A 49 1 10 SHEET 1 A 3 LEU A 3 SER A 9 0 SHEET 2 A 3 LEU A 56 GLU A 62 -1 SHEET 3 A 3 VAL A 93 ASP A 98 -1 SHEET 1 B 2 ARG A 21 PHE A 22 0 SHEET 2 B 2 LEU A 88 LEU A 89 -1 SHEET 1 C 3 ILE A 34 HIS A 35 0 SHEET 2 C 3 ARG A 80 LEU A 84 -1 SHEET 3 C 3 LEU A 70 ALA A 74 -1