ASP 22 * ARG 23 * THR 24 * THR 26 * THR 28 * LEU 56 * GLU 60 * TRP 63 * PHE 64 * ASN 79 * HIS 80 * ILE 81 * TRP 82 * ASP 83 * GLU 84 * TRP 85 * ALA 86 * PHE 87 * GLU 88 * LYS 89 * VAL 91 * MET 101 * THR 102 * ASP 103 * PHE 104 * GLY 105 * HIS 106 * SER 108 * GLN 109 * TYR 118 * MET 122 * LEU 142 * LEU 144 * VAL 145 * TYR 146 * GLN 149 * MET 193 * ALA 194 * LEU 195 * PRO 196 * PRO 197 * CYS 198 * HIS 199 * ARG 218 * SER 219 * ALA 220 * ASP 221 * ILE 222 * PHE 223 * LEU 224 * GLY 225 * VAL 226 * PHE 228 * ASN 229 * HIS 259 * LEU 260 * TYR 261 * ASN 263 * HIS 264 * ALA 312 * PRO 313 * VAL 314 * ALA 315 * VAL 316 *