SHEET 1 A 4 VAL A 28 ILE A 33 0 SHEET 2 A 4 PHE A 39 ASN A 44 -1 SHEET 3 A 4 THR A 81 ALA A 86 -1 SHEET 4 A 4 ASP A 98 TRP A 101 1 SHEET 1 B 2 GLN A 50 PRO A 51 0 SHEET 2 B 2 VAL A 75 LEU A 76 -1 SHEET 1 C 4 THR A 64 LYS A 69 0 SHEET 2 C 4 GLU A 56 ILE A 61 -1 SHEET 3 C 4 LYS A 114 LYS A 118 -1 SHEET 4 C 4 GLU A 124 SER A 129 -1 SHEET 1 D 4 VAL B 28 ILE B 33 0 SHEET 2 D 4 PHE B 39 ASN B 44 -1 SHEET 3 D 4 THR B 81 TRP B 85 -1 SHEET 4 D 4 ASP B 98 ILE B 100 1 SHEET 1 E 2 GLN B 50 PRO B 51 0 SHEET 2 E 2 VAL B 75 LEU B 76 -1 SHEET 1 F 4 THR B 64 LYS B 69 0 SHEET 2 F 4 GLU B 56 ILE B 61 -1 SHEET 3 F 4 VAL B 113 LYS B 118 -1 SHEET 4 F 4 GLU B 124 SER B 129 -1