ILE 27 * VAL 28 * LEU 53 * CYS 54 * GLY 55 * ALA 67 * HIS 69 * CYS 70 * TYR 73 * TRP 76 * LYS 78 * LEU 122 * ASP 125 * VAL 164 * GLY 168 * ASN 169 * LYS 171 * GLU 172 * LEU 183 * PHE 204 * CYS 205 * ALA 206 * GLY 207 * GLY 216 * ASP 217 * ALA 218 * CYS 219 * GLU 220 * GLY 221 * ASP 222 * SER 223 * GLY 224 * GLY 225 * ILE 242 * VAL 243 * SER 244 * TRP 245 * GLY 246 * GLU 247 * GLY 248 * CYS 249 * ASP 250 * ARG 251 * LYS 254 * TYR 255 * GLY 256 * PHE 257 * TYR 258 * THR 259 *