ILE 37 * VAL 38 * LEU 54 * LEU 62 * LEU 63 * CYS 64 * GLY 65 * ALA 77 * ALA 78 * HIS 79 * CYS 80 * LEU 81 * LEU 82 * TYR 83 * PRO 85 * TRP 86 * LYS 88 * PHE 90 * TYR 126 * LEU 132 * ASP 135 * VAL 174 * THR 175 * GLY 176 * GLY 178 * ASN 179 * LYS 181 * GLU 182 * VAL 192 * LEU 194 * PHE 215 * CYS 216 * ALA 217 * GLY 218 * GLY 227 * ASP 228 * ALA 229 * CYS 230 * GLU 231 * GLY 232 * ASP 233 * SER 234 * GLY 235 * GLY 236 * PHE 238 * ILE 253 * VAL 254 * SER 255 * TRP 256 * GLY 257 * GLU 258 * GLY 259 * CYS 260 * ASP 261 * ARG 262 * LYS 265 * TYR 266 * GLY 267 * PHE 268 * TYR 269 * THR 270 *