HEADER CONTRACTILE PROTEIN 19-NOV-99 1DFK TITLE NUCLEOTIDE-FREE SCALLOP MYOSIN S1-NEAR RIGOR STATE COMPND MOL_ID: 1; COMPND 2 MOLECULE: MYOSIN HEAD; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: HEAVY ; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 4.20 ANGSTORMS DBREF 1DFK A 6 835 UNP P24733 MYS_AEQIR 6 835 SEQRES 1 A 48 ASP GLY LYS LYS ASN CYS TRP VAL PRO ASP GLU LYS GLU SEQRES 2 A 48 GLY PHE ALA SER ALA GLU ILE GLN SER SER LYS GLY ASP SEQRES 3 A 48 GLU ILE THR VAL LYS ILE VAL ALA ASP SER SER THR ARG SEQRES 4 A 48 THR VAL LYS LYS ASP ASP ILE GLN SER ATOM 1 N ASP A 29 13.856 8.300 50.338 1.00 40.00 ATOM 2 CA ASP A 29 14.157 7.718 51.642 1.00 40.00 ATOM 3 C ASP A 29 13.336 6.437 51.690 1.00 40.00 ATOM 4 O ASP A 29 12.106 6.474 51.703 1.00 40.00 ATOM 5 CB ASP A 29 13.721 8.650 52.788 1.00 40.00 ATOM 6 N GLY A 30 14.013 5.300 51.712 1.00 40.00 ATOM 7 CA GLY A 30 13.290 4.045 51.746 1.00 40.00 ATOM 8 C GLY A 30 12.426 3.796 52.968 1.00 40.00 ATOM 9 O GLY A 30 11.836 2.730 53.093 1.00 40.00 ATOM 10 N LYS A 31 12.345 4.764 53.872 1.00 40.00 ATOM 11 CA LYS A 31 11.543 4.578 55.074 1.00 40.00 ATOM 12 C LYS A 31 10.518 5.676 55.269 1.00 40.00 ATOM 13 O LYS A 31 9.649 5.576 56.128 1.00 40.00 ATOM 14 CB LYS A 31 12.461 4.492 56.297 1.00 40.00 ATOM 15 N LYS A 32 10.621 6.724 54.464 1.00 40.00 ATOM 16 CA LYS A 32 9.685 7.836 54.537 1.00 40.00 ATOM 17 C LYS A 32 8.674 7.656 53.398 1.00 40.00 ATOM 18 O LYS A 32 7.460 7.727 53.617 1.00 40.00 ATOM 19 CB LYS A 32 10.427 9.166 54.369 1.00 40.00 ATOM 20 N ASN A 33 9.198 7.408 52.189 1.00 40.00 ATOM 21 CA ASN A 33 8.413 7.213 50.956 1.00 40.00 ATOM 22 C ASN A 33 7.677 5.871 50.835 1.00 40.00 ATOM 23 O ASN A 33 8.255 4.805 51.046 1.00 40.00 ATOM 24 CB ASN A 33 9.327 7.386 49.746 1.00 40.00 ATOM 25 N CYS A 34 6.399 5.928 50.477 1.00 40.00 ATOM 26 CA CYS A 34 5.611 4.708 50.350 1.00 40.00 ATOM 27 C CYS A 34 4.355 4.924 49.477 1.00 40.00 ATOM 28 O CYS A 34 4.069 6.039 49.008 1.00 40.00 ATOM 29 CB CYS A 34 5.196 4.246 51.746 1.00 40.00 ATOM 30 N TRP A 35 3.610 3.843 49.277 1.00 40.00 ATOM 31 CA TRP A 35 2.397 3.881 48.481 1.00 40.00 ATOM 32 C TRP A 35 1.180 3.852 49.388 1.00 40.00 ATOM 33 O TRP A 35 1.009 2.905 50.175 1.00 40.00 ATOM 34 CB TRP A 35 2.336 2.664 47.527 1.00 40.00 ATOM 35 N VAL A 36 0.337 4.879 49.285 1.00 40.00 ATOM 36 CA VAL A 36 -0.888 4.933 50.091 1.00 40.00 ATOM 37 C VAL A 36 -2.106 4.921 49.174 1.00 40.00 ATOM 38 O VAL A 36 -2.137 5.621 48.162 1.00 40.00 ATOM 39 CB VAL A 36 -0.972 6.212 50.969 1.00 40.00 ATOM 40 N PRO A 37 -3.115 4.105 49.504 1.00 40.00 ATOM 41 CA PRO A 37 -4.335 4.021 48.692 1.00 40.00 ATOM 42 C PRO A 37 -4.927 5.367 48.269 1.00 40.00 ATOM 43 O PRO A 37 -4.860 6.360 49.007 1.00 40.00 ATOM 44 CB PRO A 37 -5.290 3.210 49.559 1.00 40.00 ATOM 45 N ASP A 38 -5.506 5.390 47.072 1.00 40.00 ATOM 46 CA ASP A 38 -6.125 6.594 46.536 1.00 40.00 ATOM 47 C ASP A 38 -7.427 6.210 45.828 1.00 40.00 ATOM 48 O ASP A 38 -7.602 5.051 45.448 1.00 40.00 ATOM 49 CB ASP A 38 -5.169 7.273 45.564 1.00 40.00 ATOM 50 N GLU A 39 -8.342 7.165 45.658 1.00 40.00 ATOM 51 CA GLU A 39 -9.621 6.888 44.982 1.00 40.00 ATOM 52 C GLU A 39 -9.563 7.228 43.481 1.00 40.00 ATOM 53 O GLU A 39 -10.234 6.593 42.664 1.00 40.00 ATOM 54 CB GLU A 39 -10.757 7.673 45.654 1.00 40.00 ATOM 55 N LYS A 40 -8.755 8.229 43.139 1.00 40.00 ATOM 56 CA LYS A 40 -8.581 8.669 41.758 1.00 40.00 ATOM 57 C LYS A 40 -7.443 7.906 41.079 1.00 40.00 ATOM 58 O LYS A 40 -7.621 7.348 39.999 1.00 40.00 ATOM 59 CB LYS A 40 -8.253 10.161 41.718 1.00 40.00 ATOM 60 N GLU A 41 -6.282 7.884 41.730 1.00 40.00 ATOM 61 CA GLU A 41 -5.092 7.220 41.207 1.00 40.00 ATOM 62 C GLU A 41 -4.830 5.791 41.657 1.00 40.00 ATOM 63 O GLU A 41 -3.833 5.191 41.243 1.00 40.00 ATOM 64 CB GLU A 41 -3.859 8.057 41.541 1.00 40.00 ATOM 65 N GLY A 42 -5.696 5.236 42.497 1.00 40.00 ATOM 66 CA GLY A 42 -5.480 3.872 42.961 1.00 40.00 ATOM 67 C GLY A 42 -4.463 3.803 44.097 1.00 40.00 ATOM 68 O GLY A 42 -4.675 3.103 45.097 1.00 40.00 ATOM 69 N PHE A 43 -3.359 4.535 43.934 1.00 40.00 ATOM 70 CA PHE A 43 -2.283 4.598 44.919 1.00 40.00 ATOM 71 C PHE A 43 -1.599 5.949 44.793 1.00 40.00 ATOM 72 O PHE A 43 -1.448 6.471 43.692 1.00 40.00 ATOM 73 CB PHE A 43 -1.266 3.488 44.679 1.00 40.00 ATOM 74 N ALA A 44 -1.185 6.521 45.919 1.00 40.00 ATOM 75 CA ALA A 44 -0.529 7.815 45.891 1.00 40.00 ATOM 76 C ALA A 44 0.837 7.767 46.522 1.00 40.00 ATOM 77 O ALA A 44 1.071 7.007 47.465 1.00 40.00 ATOM 78 CB ALA A 44 -1.377 8.835 46.605 1.00 40.00 ATOM 79 N SER A 45 1.736 8.590 45.987 1.00 40.00 ATOM 80 CA SER A 45 3.102 8.680 46.479 1.00 40.00 ATOM 81 C SER A 45 3.036 9.446 47.780 1.00 40.00 ATOM 82 O SER A 45 2.686 10.632 47.799 1.00 40.00 ATOM 83 CB SER A 45 3.988 9.442 45.501 1.00 40.00 ATOM 84 N ALA A 46 3.372 8.769 48.870 1.00 40.00 ATOM 85 CA ALA A 46 3.332 9.410 50.170 1.00 40.00 ATOM 86 C ALA A 46 4.663 9.377 50.891 1.00 40.00 ATOM 87 O ALA A 46 5.528 8.544 50.602 1.00 40.00 ATOM 88 CB ALA A 46 2.276 8.745 51.022 1.00 40.00 ATOM 89 N GLU A 47 4.805 10.310 51.825 1.00 40.00 ATOM 90 CA GLU A 47 5.992 10.445 52.661 1.00 40.00 ATOM 91 C GLU A 47 5.472 10.510 54.094 1.00 40.00 ATOM 92 O GLU A 47 4.793 11.476 54.468 1.00 40.00 ATOM 93 CB GLU A 47 6.739 11.730 52.349 1.00 40.00 ATOM 94 N ILE A 48 5.786 9.485 54.886 1.00 40.00 ATOM 95 CA ILE A 48 5.345 9.419 56.281 1.00 40.00 ATOM 96 C ILE A 48 5.797 10.586 57.149 1.00 40.00 ATOM 97 O ILE A 48 6.909 11.102 57.015 1.00 40.00 ATOM 98 CB ILE A 48 5.827 8.143 56.967 1.00 40.00 ATOM 99 N GLN A 49 4.919 10.988 58.055 1.00 40.00 ATOM 100 CA GLN A 49 5.206 12.094 58.950 1.00 40.00 ATOM 101 C GLN A 49 5.252 11.658 60.406 1.00 40.00 ATOM 102 O GLN A 49 6.178 12.014 61.139 1.00 40.00 ATOM 103 CB GLN A 49 4.142 13.178 58.789 1.00 40.00 ATOM 104 N SER A 50 4.252 10.881 60.814 1.00 40.00 ATOM 105 CA SER A 50 4.168 10.427 62.189 1.00 40.00 ATOM 106 C SER A 50 3.355 9.167 62.415 1.00 40.00 ATOM 107 O SER A 50 2.234 9.052 61.932 1.00 40.00 ATOM 108 CB SER A 50 3.571 11.543 63.047 1.00 40.00 ATOM 109 N SER A 51 3.927 8.232 63.167 1.00 40.00 ATOM 110 CA SER A 51 3.247 6.984 63.483 1.00 40.00 ATOM 111 C SER A 51 2.413 7.250 64.736 1.00 40.00 ATOM 112 O SER A 51 2.555 8.290 65.378 1.00 40.00 ATOM 113 CB SER A 51 4.253 5.868 63.772 1.00 40.00 ATOM 114 N LYS A 52 1.550 6.307 65.080 1.00 40.00 ATOM 115 CA LYS A 52 0.700 6.444 66.245 1.00 40.00 ATOM 116 C LYS A 52 -0.079 5.151 66.391 1.00 40.00 ATOM 117 O LYS A 52 -1.295 5.126 66.247 1.00 40.00 ATOM 118 CB LYS A 52 -0.255 7.622 66.062 1.00 40.00 ATOM 119 N GLY A 53 0.643 4.074 66.676 1.00 40.00 ATOM 120 CA GLY A 53 0.020 2.775 66.834 1.00 40.00 ATOM 121 C GLY A 53 -0.200 2.153 65.470 1.00 40.00 ATOM 122 O GLY A 53 0.625 1.376 64.974 1.00 40.00 ATOM 123 N ASP A 54 -1.329 2.507 64.865 1.00 40.00 ATOM 124 CA ASP A 54 -1.714 2.017 63.549 1.00 40.00 ATOM 125 C ASP A 54 -2.010 3.208 62.656 1.00 40.00 ATOM 126 O ASP A 54 -1.959 3.116 61.438 1.00 40.00 ATOM 127 CB ASP A 54 -2.963 1.150 63.652 1.00 40.00 ATOM 128 N GLU A 55 -2.314 4.332 63.279 1.00 40.00 ATOM 129 CA GLU A 55 -2.636 5.528 62.538 1.00 40.00 ATOM 130 C GLU A 55 -1.416 6.276 62.072 1.00 40.00 ATOM 131 O GLU A 55 -0.868 7.093 62.804 1.00 40.00 ATOM 132 CB GLU A 55 -3.494 6.451 63.397 1.00 40.00 ATOM 133 N ILE A 56 -0.993 5.996 60.845 1.00 40.00 ATOM 134 CA ILE A 56 0.167 6.665 60.283 1.00 40.00 ATOM 135 C ILE A 56 -0.354 7.934 59.637 1.00 40.00 ATOM 136 O ILE A 56 -1.464 7.953 59.124 1.00 40.00 ATOM 137 CB ILE A 56 0.858 5.797 59.213 1.00 40.00 ATOM 138 N THR A 57 0.445 8.992 59.677 1.00 40.00 ATOM 139 CA THR A 57 0.075 10.272 59.090 1.00 40.00 ATOM 140 C THR A 57 1.136 10.574 58.041 1.00 40.00 ATOM 141 O THR A 57 2.306 10.804 58.368 1.00 40.00 ATOM 142 CB THR A 57 0.073 11.398 60.132 1.00 40.00 ATOM 143 N VAL A 58 0.710 10.567 56.780 1.00 40.00 ATOM 144 CA VAL A 58 1.592 10.812 55.640 1.00 40.00 ATOM 145 C VAL A 58 1.278 12.113 54.937 1.00 40.00 ATOM 146 O VAL A 58 0.253 12.741 55.193 1.00 40.00 ATOM 147 CB VAL A 58 1.448 9.686 54.615 1.00 40.00 ATOM 148 N LYS A 59 2.174 12.515 54.048 1.00 40.00 ATOM 149 CA LYS A 59 1.980 13.728 53.280 1.00 40.00 ATOM 150 C LYS A 59 1.991 13.296 51.824 1.00 40.00 ATOM 151 O LYS A 59 2.865 12.523 51.409 1.00 40.00 ATOM 152 CB LYS A 59 3.116 14.719 53.511 1.00 40.00 ATOM 153 N ILE A 60 1.018 13.781 51.052 1.00 40.00 ATOM 154 CA ILE A 60 0.929 13.446 49.633 1.00 40.00 ATOM 155 C ILE A 60 1.914 14.350 48.886 1.00 40.00 ATOM 156 O ILE A 60 1.787 15.580 48.918 1.00 40.00 ATOM 157 CB ILE A 60 -0.504 13.684 49.095 1.00 40.00 ATOM 158 N VAL A 61 2.895 13.739 48.220 1.00 40.00 ATOM 159 CA VAL A 61 3.913 14.488 47.475 1.00 40.00 ATOM 160 C VAL A 61 3.357 15.412 46.393 1.00 40.00 ATOM 161 O VAL A 61 3.895 16.499 46.154 1.00 40.00 ATOM 162 CB VAL A 61 4.932 13.539 46.794 1.00 40.00 ATOM 163 N ALA A 62 2.282 14.966 45.748 1.00 40.00 ATOM 164 CA ALA A 62 1.627 15.720 44.688 1.00 40.00 ATOM 165 C ALA A 62 1.088 17.083 45.142 1.00 40.00 ATOM 166 O ALA A 62 1.756 18.109 44.992 1.00 40.00 ATOM 167 CB ALA A 62 0.488 14.880 44.103 1.00 40.00 ATOM 168 N ASP A 63 -0.122 17.088 45.696 1.00 40.00 ATOM 169 CA ASP A 63 -0.756 18.318 46.160 1.00 40.00 ATOM 170 C ASP A 63 -0.178 18.852 47.464 1.00 40.00 ATOM 171 O ASP A 63 -0.377 20.019 47.810 1.00 40.00 ATOM 172 CB ASP A 63 -2.270 18.098 46.330 1.00 40.00 ATOM 173 N SER A 64 0.537 17.990 48.182 1.00 40.00 ATOM 174 CA SER A 64 1.149 18.345 49.457 1.00 40.00 ATOM 175 C SER A 64 0.114 18.406 50.587 1.00 40.00 ATOM 176 O SER A 64 0.295 19.107 51.582 1.00 40.00 ATOM 177 CB SER A 64 1.881 19.685 49.332 1.00 40.00 ATOM 178 N SER A 65 -0.974 17.662 50.421 1.00 40.00 ATOM 179 CA SER A 65 -2.024 17.612 51.422 1.00 40.00 ATOM 180 C SER A 65 -1.583 16.580 52.466 1.00 40.00 ATOM 181 O SER A 65 -0.510 15.983 52.330 1.00 40.00 ATOM 182 CB SER A 65 -3.360 17.207 50.765 1.00 40.00 ATOM 183 N THR A 66 -2.395 16.370 53.503 1.00 40.00 ATOM 184 CA THR A 66 -2.052 15.410 54.558 1.00 40.00 ATOM 185 C THR A 66 -3.207 14.511 54.937 1.00 40.00 ATOM 186 O THR A 66 -4.368 14.888 54.802 1.00 40.00 ATOM 187 CB THR A 66 -1.599 16.105 55.873 1.00 40.00 ATOM 188 N ARG A 67 -2.876 13.320 55.422 1.00 40.00 ATOM 189 CA ARG A 67 -3.895 12.370 55.839 1.00 40.00 ATOM 190 C ARG A 67 -3.317 11.202 56.617 1.00 40.00 ATOM 191 O ARG A 67 -2.101 11.020 56.689 1.00 40.00 ATOM 192 CB ARG A 67 -4.677 11.836 54.630 1.00 40.00 ATOM 193 N THR A 68 -4.210 10.419 57.200 1.00 40.00 ATOM 194 CA THR A 68 -3.835 9.262 57.991 1.00 40.00 ATOM 195 C THR A 68 -4.165 8.009 57.197 1.00 40.00 ATOM 196 O THR A 68 -4.985 8.066 56.291 1.00 40.00 ATOM 197 CB THR A 68 -4.608 9.261 59.315 1.00 40.00 ATOM 198 N VAL A 69 -3.543 6.882 57.536 1.00 40.00 ATOM 199 CA VAL A 69 -3.788 5.633 56.815 1.00 40.00 ATOM 200 C VAL A 69 -3.403 4.441 57.658 1.00 40.00 ATOM 201 O VAL A 69 -2.328 4.438 58.229 1.00 40.00 ATOM 202 CB VAL A 69 -2.937 5.553 55.512 1.00 40.00 ATOM 203 N LYS A 70 -4.254 3.428 57.746 1.00 40.00 ATOM 204 CA LYS A 70 -3.904 2.252 58.536 1.00 40.00 ATOM 205 C LYS A 70 -2.478 1.859 58.155 1.00 40.00 ATOM 206 O LYS A 70 -2.066 2.003 57.009 1.00 40.00 ATOM 207 CB LYS A 70 -4.856 1.086 58.246 1.00 40.00 ATOM 208 N LYS A 71 -1.720 1.372 59.125 1.00 40.00 ATOM 209 CA LYS A 71 -0.341 0.987 58.879 1.00 40.00 ATOM 210 C LYS A 71 -0.256 -0.186 57.924 1.00 40.00 ATOM 211 O LYS A 71 0.662 -0.268 57.113 1.00 40.00 ATOM 212 CB LYS A 71 0.343 0.623 60.204 1.00 40.00 ATOM 213 N ASP A 72 -1.214 -1.094 58.020 1.00 40.00 ATOM 214 CA ASP A 72 -1.211 -2.262 57.157 1.00 40.00 ATOM 215 C ASP A 72 -1.825 -2.000 55.774 1.00 40.00 ATOM 216 O ASP A 72 -2.171 -2.941 55.044 1.00 40.00 ATOM 217 CB ASP A 72 -1.979 -3.395 57.829 1.00 40.00 ATOM 218 N ASP A 73 -1.937 -0.733 55.420 1.00 40.00 ATOM 219 CA ASP A 73 -2.503 -0.334 54.116 1.00 40.00 ATOM 220 C ASP A 73 -1.449 0.384 53.275 1.00 40.00 ATOM 221 O ASP A 73 -1.697 0.772 52.124 1.00 40.00 ATOM 222 CB ASP A 73 -3.695 0.597 54.310 1.00 40.00 ATOM 223 N ILE A 74 -0.297 0.556 53.879 1.00 40.00 ATOM 224 CA ILE A 74 0.843 1.170 53.205 1.00 40.00 ATOM 225 C ILE A 74 1.523 0.089 52.370 1.00 40.00 ATOM 226 O ILE A 74 1.585 -1.080 52.774 1.00 40.00 ATOM 227 CB ILE A 74 1.821 1.735 54.238 1.00 40.00 ATOM 228 N GLN A 75 1.999 0.497 51.216 1.00 40.00 ATOM 229 CA GLN A 75 2.708 -0.401 50.290 1.00 40.00 ATOM 230 C GLN A 75 4.114 0.156 50.049 1.00 40.00 ATOM 231 O GLN A 75 4.321 1.374 50.040 1.00 40.00 ATOM 232 CB GLN A 75 1.946 -0.488 48.963 1.00 40.00 ATOM 233 N SER A 76 5.068 -0.744 49.867 1.00 40.00 ATOM 234 CA SER A 76 6.478 -0.358 49.621 1.00 40.00 ATOM 235 C SER A 76 6.653 0.016 48.147 1.00 40.00 ATOM 236 O SER A 76 5.937 -0.476 47.269 1.00 40.00 ATOM 237 CB SER A 76 7.409 -1.516 49.971 1.00 40.00 TER