TRP 37 * ALA 38 * MET 39 * ASN 40 * VAL 41 * GLY 42 * LYS 45 * LEU 64 * GLY 65 * ALA 66 * TYR 67 * SER 71 * GLU 89 * PHE 138 * LEU 139 * ASP 140 * HIS 141 * TRP 142 * LYS 143 * ASP 144 * TYR 146 * ALA 167 * ASP 168 * ASN 169 * VAL 170 * ILE 171 * CYS 172 * PRO 173 * GLY 174 * PHE 196 * LEU 197 * GLU 198 * TYR 199 * ARG 200 * VAL 202 * VAL 203 * ASP 204 * GLY 205 * LEU 206 * MG 215 * SAM 216 *