HEADER SWEET TASTING PROTEIN 24-MAY-89 1THI TITLE CRYSTAL STRUCTURES OF TWO INTENSELY SWEET PROTEINS COMPND MOL_ID: 1; COMPND 2 MOLECULE: THAUMATIN I; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 3.20 ANGSTORMS DBREF 1THI A 1 207 UNP P02883 THM1_THADA 1 207 SEQRES 1 A 51 ALA ASP ILE VAL GLY GLN CYS PRO ALA LYS LEU LYS ALA SEQRES 2 A 51 PRO GLY GLY GLY CYS ASN ASP ALA CYS THR VAL PHE GLN SEQRES 3 A 51 THR SER GLU TYR CYS CYS THR THR GLY LYS CYS GLY PRO SEQRES 4 A 51 THR GLU TYR SER ARG PHE PHE LYS ARG LEU CYS PRO ATOM 1 CA ALA A 128 5.276 24.007 11.205 1.00 17.70 ATOM 2 CA ASP A 129 1.534 25.316 11.097 1.00 17.70 ATOM 3 CA ILE A 130 0.729 23.945 14.714 1.00 17.70 ATOM 4 CA VAL A 131 -0.930 27.176 15.186 1.00 17.70 ATOM 5 CA GLY A 132 -3.312 25.438 12.782 1.00 17.70 ATOM 6 CA GLN A 133 -2.698 21.740 13.562 1.00 17.70 ATOM 7 CA CYS A 134 -3.522 22.454 17.318 1.00 17.70 ATOM 8 CA PRO A 135 -5.664 19.729 19.191 1.00 17.70 ATOM 9 CA ALA A 136 -7.933 22.245 20.580 1.00 17.70 ATOM 10 CA LYS A 137 -7.604 20.976 24.080 1.00 17.70 ATOM 11 CA LEU A 138 -4.217 22.833 23.825 1.00 17.70 ATOM 12 CA LYS A 139 -4.425 26.420 22.262 1.00 17.70 ATOM 13 CA ALA A 140 -5.949 29.893 22.993 1.00 17.70 ATOM 14 CA PRO A 141 -8.496 32.542 22.134 1.00 17.70 ATOM 15 CA GLY A 142 -7.105 35.273 20.211 1.00 17.70 ATOM 16 CA GLY A 143 -4.137 32.820 19.380 1.00 17.70 ATOM 17 CA GLY A 144 -1.926 29.830 20.855 1.00 17.70 ATOM 18 CA CYS A 145 -1.500 26.361 21.943 1.00 17.70 ATOM 19 CA ASN A 146 -0.775 25.455 25.238 1.00 17.70 ATOM 20 CA ASP A 147 1.836 23.037 26.065 1.00 17.70 ATOM 21 CA ALA A 148 2.123 21.700 29.595 1.00 17.70 ATOM 22 CA CYS A 149 1.520 23.533 32.742 1.00 17.70 ATOM 23 CA THR A 150 -0.565 26.079 30.942 1.00 17.70 ATOM 24 CA VAL A 151 -3.767 24.027 30.343 1.00 17.70 ATOM 25 CA PHE A 152 -4.542 21.060 32.695 1.00 17.70 ATOM 26 CA GLN A 153 -2.291 21.452 35.744 1.00 17.70 ATOM 27 CA THR A 154 -1.718 17.803 36.615 1.00 17.70 ATOM 28 CA SER A 155 1.634 16.330 36.153 1.00 17.70 ATOM 29 CA GLU A 156 0.531 13.563 34.063 1.00 17.70 ATOM 30 CA TYR A 157 1.534 16.040 31.643 1.00 17.70 ATOM 31 CA CYS A 158 4.057 18.602 32.895 1.00 17.70 ATOM 32 CA CYS A 159 5.925 17.108 35.572 1.00 17.70 ATOM 33 CA THR A 160 5.876 17.811 39.312 1.00 17.70 ATOM 34 CA THR A 161 7.617 14.682 40.422 1.00 17.70 ATOM 35 CA GLY A 162 10.653 13.804 38.217 1.00 17.70 ATOM 36 CA LYS A 163 8.370 11.585 36.198 1.00 17.70 ATOM 37 CA CYS A 164 8.082 12.416 32.651 1.00 17.70 ATOM 38 CA GLY A 165 6.765 10.149 30.174 1.00 17.70 ATOM 39 CA PRO A 166 6.335 11.201 26.638 1.00 17.70 ATOM 40 CA THR A 167 2.787 11.884 25.973 1.00 17.70 ATOM 41 CA GLU A 168 0.853 11.472 22.914 1.00 17.70 ATOM 42 CA TYR A 169 -0.314 15.034 23.673 1.00 17.70 ATOM 43 CA SER A 170 3.410 15.624 24.109 1.00 17.70 ATOM 44 CA ARG A 171 3.262 13.555 20.774 1.00 17.70 ATOM 45 CA PHE A 172 2.184 16.368 18.302 1.00 17.70 ATOM 46 CA PHE A 173 4.976 18.895 18.772 1.00 17.70 ATOM 47 CA LYS A 174 8.079 16.932 18.049 1.00 17.70 ATOM 48 CA ARG A 175 7.202 13.849 16.385 1.00 17.70 ATOM 49 CA LEU A 176 6.494 16.337 13.606 1.00 17.70 ATOM 50 CA CYS A 177 8.774 19.242 14.910 1.00 17.70 ATOM 51 CA PRO A 178 11.734 17.434 16.370 1.00 17.70 TER