HELIX 1 H VAL A 20 LEU A 27 1 8 HELIX 2 H ALA A 48 ALA A 51 1 4 SHEET 1 A 5 LYS A 8 THR A 11 0 SHEET 2 A 5 ASN A 2 VAL A 5 -1 SHEET 3 A 5 ASP A 58 PHE A 62 1 SHEET 4 A 5 VAL A 37 LEU A 39 -1 SHEET 5 A 5 GLU A 42 LEU A 44 -1 SHEET 1 B 2 SER A 17 ASN A 19 0 SHEET 2 B 2 THR A 53 LYS A 55 -1