PHE 6 * ILE 10 * LEU 13 * MET 14 * GLU 31 * LEU 32 * ILE 33 * SER 34 * ASN 35 * SER 36 * SER 37 * ASP 38 * ALA 39 * LEU 40 * ASP 41 * LYS 42 * ILE 43 * GLU 46 * ASP 77 * GLY 79 * ILE 80 * GLY 81 * MET 82 * ASP 86 * LEU 87 * ILE 88 * ASN 89 * ASN 90 * LEU 91 * GLY 92 * THR 93 * ILE 94 * ALA 95 * LYS 96 * SER 97 * GLY 98 * THR 99 * ILE 115 * GLY 116 * GLN 117 * PHE 118 * GLY 119 * VAL 120 * GLY 121 * PHE 122 * TYR 123 * SER 124 * ALA 125 * HIS 138 * TRP 146 * THR 168 * VAL 170 *