HELIX 1 H SER A 6 LYS A 20 1 15 HELIX 2 H LEU A 23 GLU A 44 1 22 HELIX 3 H LYS A 48 VAL A 54 1 7 HELIX 4 H GLU A 63 LYS A 70 1 8 HELIX 5 H GLU A 78 VAL A 91 1 14 HELIX 6 H GLU A 101 LEU A 122 1 22