HIS 2 * TRP 3 * TYR 5 * TRP 14 * SER 27 * PRO 28 * LEU 58 * ASN 60 * GLY 61 * HIS 62 * ALA 63 * PHE 64 * ASN 65 * VAL 66 * GLU 67 * ILE 89 * GLN 90 * PHE 91 * HIS 92 * PHE 93 * HIS 94 * GLU 104 * HIS 105 * GLU 115 * LEU 116 * HIS 117 * LEU 118 * VAL 119 * HIS 120 * TRP 121 * PHE 128 * GLY 129 * ALA 131 * VAL 132 * GLY 137 * LEU 138 * ALA 139 * VAL 140 * LEU 141 * GLY 142 * TYR 191 * GLY 193 * SER 194 * LEU 195 * THR 196 * THR 197 * PRO 198 * PRO 199 * LEU 200 * LEU 201 * CYS 203 * VAL 204 * THR 205 * TRP 206 * ASN 241 * TRP 242 * ARG 243 *