VAL 80 * ALA 81 * TYR 82 * HIS 83 * ASN 84 * HIS 87 * THR 91 * HIS 123 * ASP 124 * HIS 127 * GLY 129 * VAL 130 * CYS 131 * HIS 132 * SER 133 * ILE 134 * MET 135 * GLU 136 * HIS 138 * THR 177 * ASP 178 * LEU 179 * ILE 183 * ARG 186 * THR 215 * ALA 216 * CYS 217 * ASP 218 * LEU 219 * SER 220 * ALA 221 * ILE 222 * THR 223 * LYS 224 * ILE 228 * GLN 229 * GLN 230 * ARG 231 * ILE 232 * ALA 233 * GLU 234 * LEU 235 * VAL 236 * ALA 237 * THR 238 * GLU 239 * PHE 240 * PHE 241 * GLN 243 * LYS 246 * LYS 247 * ASN 248 * LYS 249 * ILE 250 * PRO 251 * SER 252 * MET 253 * GLN 254 * VAL 255 * GLY 256 * PHE 257 * ILE 258 * ASP 259 * ALA 260 * ILE 261 * CYS 262 * TYR 266 * CYS 283 * ASN 286 * TRP 290 *