HELIX 1 H HIS A 12 GLN A 23 1 12 HELIX 2 H ALA A 38 TYR A 44 1 7 HELIX 3 H ALA A 65 ASP A 73 1 9 SHEET 1 A 4 PHE A 29 PHE A 33 0 SHEET 2 A 4 LEU A 3 GLN A 7 1 SHEET 3 A 4 VAL A 50 ARG A 52 -1 SHEET 4 A 4 GLU A 58 ASP A 60 -1