HELIX 1 H ASN A 61 LYS A 72 1 12 HELIX 2 H ASN B 61 GLY B 73 1 13 SHEET 1 A 4 PHE A 9 ASN A 21 0 SHEET 2 A 4 TRP A 25 PHE A 34 -1 SHEET 3 A 4 ALA A 39 TRP A 46 -1 SHEET 4 A 4 ILE A 57 LEU A 59 -1 SHEET 1 B 4 PHE B 9 ASN B 21 0 SHEET 2 B 4 TRP B 25 PHE B 34 -1 SHEET 3 B 4 LYS B 40 TRP B 46 -1 SHEET 4 B 4 ILE B 57 LEU B 59 -1