THR 20 * TRP 21 * LYS 22 * SER 23 * ASP 44 * CYS 45 * ALA 46 * HIS 47 * VAL 48 * TYR 49 * GLN 50 * ASN 51 * LYS 78 * LEU 79 * TRP 80 * CYS 81 * THR 82 * HIS 84 * HIS 111 * TRP 112 * PRO 113 * THR 114 * GLY 115 * PHE 116 * PHE 122 * PHE 123 * PRO 124 * VAL 131 * SER 160 * ASN 161 * GLN 166 * GLN 184 * GLU 186 * TYR 210 * SER 211 * SER 215 * ARG 218 * PRO 219 * TRP 220 * ILE 261 * ARG 297 * VAL 298 * CYS 299 * ALA 300 * LEU 301 * LEU 302 * SER 303 * CYS 304 * THR 305 * SER 306 * HIS 307 * ASP 309 * TYR 310 * PRO 311 * PHE 312 * NDP 319 *