ILE 28 * CYS 29 * GLY 30 * SER 31 * GLY 32 * LEU 33 * GLY 34 * GLY 73 * ARG 74 * PHE 75 * HIS 76 * MET 77 * TYR 78 * GLU 79 * VAL 103 * THR 104 * ASN 105 * ALA 106 * ALA 107 * GLY 108 * GLY 109 * ILE 122 * TYR 182 * VAL 183 * MET 184 * LEU 185 * GLY 186 * GLY 187 * PRO 188 * ASN 189 * PHE 190 * GLU 191 * ALA 206 * VAL 207 * GLY 208 * MET 209 * SER 210 * THR 211 * VAL 212 * GLU 214 * PHE 228 * SER 229 * LEU 230 * ILE 231 * THR 232 * ASN 233 * VAL 235 * ALA 245 * ASN 246 * HIS 247 * GLU 248 * GLU 249 * VAL 250 * LEU 251 * ARG 422 * PHE 423 * PRO 424 *