VAL 16 * ASP 17 * GLY 18 * ALA 19 * ALA 20 * LYS 28 * ASN 48 * GLN 49 * THR 51 * GLU 52 * THR 71 * ASP 72 * SER 73 * GLN 74 * TYR 75 * TRP 109 * VAL 110 * PRO 111 * ALA 112 * HIS 113 * LYS 114 * ASN 119 * GLU 120 * VAL 122 * ASP 123 * LYS 124 * LEU 125 * VAL 126 * SER 127 * ALA 128 * ARG 131 * GLN 205 * TRP 240 * PRO 242 * LYS 245 *