HIS 79 * TYR 83 * PRO 85 * TRP 86 * TYR 126 * ASN 127 * TRP 128 * ARG 129 * GLU 130 * ASN 131 * LEU 132 * ASP 133 * ASP 135 * GLU 182 * SER 204 * THR 205 * ARG 206 * ILE 207 * ARG 208 * ILE 209 * MET 213 * SER 233 * SER 254 * TRP 255 * GLY 256 * GLU 257 * GLY 258 * CYS 259 * ARG 261 * LYS 264 * TYR 265 * GLY 266 * PHE 267 * GLY 298 * VAL 299 * ARG 300 *