HEADER STRUCTURAL PROTEIN 31-DEC-69 6C1H TITLE High-Resolution Cryo-EM Structures of Actin-bound Myosin States TITLE 2 Reveal the Mechanism of Myosin Force Sensing COMPND MOL_ID: 2; COMPND 2 MOLECULE: Unconventional myosin-Ib; COMPND 3 CHAIN: P; EXPDTA ELECTRON MICROSCOPY DBREF 6C1H P 6 728 UNP Q05096 MYO1B_RAT 6 728 SEQRES 1 P 39 PRO ARG THR LEU PHE GLN LEU GLU ASP LEU ARG LYS GLN SEQRES 2 P 39 ARG LEU GLU ASP LEU ALA THR LEU ILE GLN LYS ILE TYR SEQRES 3 P 39 ARG GLY TRP LYS CYS ARG THR HIS PHE LEU LEU MET LYS ATOM 1 N PRO P 690 179.151 267.133 247.361 1.00140.13 ATOM 2 CA PRO P 690 178.000 268.053 247.246 1.00140.13 ATOM 3 C PRO P 690 177.228 268.029 245.925 1.00140.13 ATOM 4 O PRO P 690 176.305 268.842 245.792 1.00140.13 ATOM 5 CB PRO P 690 178.640 269.424 247.472 1.00140.13 ATOM 6 CG PRO P 690 179.721 269.128 248.421 1.00140.13 ATOM 7 CD PRO P 690 180.273 267.790 248.057 1.00140.13 ATOM 8 N ARG P 691 177.560 267.170 244.954 1.00143.68 ATOM 9 CA ARG P 691 176.703 267.008 243.781 1.00143.68 ATOM 10 C ARG P 691 175.300 266.546 244.184 1.00143.68 ATOM 11 O ARG P 691 174.288 267.110 243.733 1.00143.68 ATOM 12 CB ARG P 691 177.367 266.049 242.777 1.00143.68 ATOM 13 CG ARG P 691 177.709 264.622 243.258 1.00143.68 ATOM 14 CD ARG P 691 178.333 263.795 242.133 1.00143.68 ATOM 15 NE ARG P 691 178.412 262.364 242.444 1.00143.68 ATOM 16 CZ ARG P 691 179.481 261.734 242.930 1.00143.68 ATOM 17 NH1 ARG P 691 180.611 262.386 243.146 1.00143.68 ATOM 18 NH2 ARG P 691 179.430 260.430 243.174 1.00143.68 ATOM 19 N THR P 692 175.229 265.591 245.115 1.00148.60 ATOM 20 CA THR P 692 173.950 265.116 245.627 1.00148.60 ATOM 21 C THR P 692 173.276 266.191 246.468 1.00148.60 ATOM 22 O THR P 692 172.052 266.366 246.413 1.00148.60 ATOM 23 CB THR P 692 174.178 263.840 246.442 1.00148.60 ATOM 24 OG1 THR P 692 174.845 262.869 245.626 1.00148.60 ATOM 25 CG2 THR P 692 172.863 263.250 246.928 1.00148.60 ATOM 26 N LEU P 693 174.077 266.957 247.214 1.00143.38 ATOM 27 CA LEU P 693 173.536 267.958 248.126 1.00143.38 ATOM 28 C LEU P 693 172.875 269.103 247.371 1.00143.38 ATOM 29 O LEU P 693 171.720 269.446 247.640 1.00143.38 ATOM 30 CB LEU P 693 174.637 268.490 249.039 1.00143.38 ATOM 31 CG LEU P 693 174.111 269.478 250.080 1.00143.38 ATOM 32 CD1 LEU P 693 173.128 268.788 251.009 1.00143.38 ATOM 33 CD2 LEU P 693 175.247 270.098 250.872 1.00143.38 ATOM 34 N PHE P 694 173.584 269.691 246.404 1.00143.82 ATOM 35 CA PHE P 694 172.983 270.745 245.595 1.00143.82 ATOM 36 C PHE P 694 171.882 270.229 244.677 1.00143.82 ATOM 37 O PHE P 694 170.991 271.010 244.311 1.00143.82 ATOM 38 CB PHE P 694 174.050 271.473 244.772 1.00143.82 ATOM 39 CG PHE P 694 174.966 272.337 245.596 1.00143.82 ATOM 40 CD1 PHE P 694 174.519 273.542 246.113 1.00143.82 ATOM 41 CD2 PHE P 694 176.280 271.964 245.826 1.00143.82 ATOM 42 CE1 PHE P 694 175.358 274.343 246.869 1.00143.82 ATOM 43 CE2 PHE P 694 177.124 272.759 246.577 1.00143.82 ATOM 44 CZ PHE P 694 176.663 273.951 247.098 1.00143.82 ATOM 45 N GLN P 695 171.915 268.943 244.308 1.00153.79 ATOM 46 CA GLN P 695 170.774 268.341 243.620 1.00153.79 ATOM 47 C GLN P 695 169.523 268.368 244.501 1.00153.79 ATOM 48 O GLN P 695 168.436 268.780 244.062 1.00153.79 ATOM 49 CB GLN P 695 171.127 266.911 243.209 1.00153.79 ATOM 50 CG GLN P 695 170.068 266.197 242.392 1.00153.79 ATOM 51 CD GLN P 695 170.501 264.801 241.981 1.00153.79 ATOM 52 OE1 GLN P 695 171.590 264.347 242.333 1.00153.79 ATOM 53 NE2 GLN P 695 169.647 264.111 241.237 1.00153.79 ATOM 54 N LEU P 696 169.671 267.958 245.766 1.00154.44 ATOM 55 CA LEU P 696 168.533 267.937 246.682 1.00154.44 ATOM 56 C LEU P 696 168.076 269.346 247.045 1.00154.44 ATOM 57 O LEU P 696 166.883 269.576 247.283 1.00154.44 ATOM 58 CB LEU P 696 168.887 267.148 247.942 1.00154.44 ATOM 59 CG LEU P 696 169.141 265.652 247.753 1.00154.44 ATOM 60 CD1 LEU P 696 169.580 265.008 249.059 1.00154.44 ATOM 61 CD2 LEU P 696 167.917 264.960 247.190 1.00154.44 ATOM 62 N GLU P 697 169.008 270.304 247.085 1.00157.52 ATOM 63 CA GLU P 697 168.631 271.696 247.313 1.00157.52 ATOM 64 C GLU P 697 167.861 272.250 246.122 1.00157.52 ATOM 65 O GLU P 697 166.974 273.098 246.278 1.00157.52 ATOM 66 CB GLU P 697 169.870 272.552 247.584 1.00157.52 ATOM 67 CG GLU P 697 170.602 272.222 248.873 1.00157.52 ATOM 68 CD GLU P 697 169.783 272.513 250.109 1.00157.52 ATOM 69 OE1 GLU P 697 168.994 273.480 250.097 1.00157.52 ATOM 70 OE2 GLU P 697 169.921 271.764 251.098 1.00157.52 ATOM 71 N ASP P 698 168.194 271.773 244.919 1.00163.01 ATOM 72 CA ASP P 698 167.446 272.165 243.729 1.00163.01 ATOM 73 C ASP P 698 166.017 271.630 243.769 1.00163.01 ATOM 74 O ASP P 698 165.061 272.354 243.457 1.00163.01 ATOM 75 CB ASP P 698 168.173 271.673 242.477 1.00163.01 ATOM 76 CG ASP P 698 167.530 272.166 241.199 1.00163.01 ATOM 77 OD1 ASP P 698 167.697 273.359 240.869 1.00163.01 ATOM 78 OD2 ASP P 698 166.856 271.360 240.525 1.00163.01 ATOM 79 N LEU P 699 165.853 270.364 244.168 1.00160.07 ATOM 80 CA LEU P 699 164.514 269.774 244.210 1.00160.07 ATOM 81 C LEU P 699 163.659 270.389 245.319 1.00160.07 ATOM 82 O LEU P 699 162.457 270.635 245.131 1.00160.07 ATOM 83 CB LEU P 699 164.618 268.260 244.386 1.00160.07 ATOM 84 CG LEU P 699 165.237 267.492 243.218 1.00160.07 ATOM 85 CD1 LEU P 699 165.386 266.022 243.571 1.00160.07 ATOM 86 CD2 LEU P 699 164.405 267.664 241.958 1.00160.07 ATOM 87 N ARG P 700 164.267 270.646 246.483 1.00159.32 ATOM 88 CA ARG P 700 163.549 271.298 247.576 1.00159.32 ATOM 89 C ARG P 700 163.170 272.729 247.210 1.00159.32 ATOM 90 O ARG P 700 162.063 273.195 247.530 1.00159.32 ATOM 91 N LYS P 701 164.072 273.426 246.507 1.00160.66 ATOM 92 CA LYS P 701 163.773 274.748 245.965 1.00160.66 ATOM 93 C LYS P 701 162.631 274.697 244.956 1.00160.66 ATOM 94 O LYS P 701 161.858 275.657 244.847 1.00160.66 ATOM 95 N GLN P 702 162.484 273.580 244.238 1.00172.44 ATOM 96 CA GLN P 702 161.347 273.442 243.333 1.00172.44 ATOM 97 C GLN P 702 160.037 273.242 244.092 1.00172.44 ATOM 98 O GLN P 702 159.025 273.869 243.758 1.00172.44 ATOM 99 N ARG P 703 160.029 272.383 245.119 1.00177.92 ATOM 100 CA ARG P 703 158.760 272.075 245.785 1.00177.92 ATOM 101 C ARG P 703 158.306 273.186 246.730 1.00177.92 ATOM 102 O ARG P 703 157.127 273.217 247.126 1.00177.92 ATOM 103 N LEU P 704 159.222 274.089 247.105 1.00181.33 ATOM 104 CA LEU P 704 158.876 275.190 248.006 1.00181.33 ATOM 105 C LEU P 704 157.818 276.112 247.398 1.00181.33 ATOM 106 O LEU P 704 156.876 276.537 248.088 1.00181.33 ATOM 107 N GLU P 705 157.942 276.403 246.098 1.00185.40 ATOM 108 CA GLU P 705 156.954 277.225 245.406 1.00185.40 ATOM 109 C GLU P 705 155.607 276.520 245.316 1.00185.40 ATOM 110 O GLU P 705 154.558 277.173 245.281 1.00185.40 ATOM 111 N ASP P 706 155.619 275.187 245.263 1.00191.53 ATOM 112 CA ASP P 706 154.368 274.441 245.254 1.00191.53 ATOM 113 C ASP P 706 153.681 274.509 246.609 1.00191.53 ATOM 114 O ASP P 706 152.446 274.559 246.683 1.00191.53 ATOM 115 N LEU P 707 154.463 274.524 247.693 1.00190.82 ATOM 116 CA LEU P 707 153.853 274.648 249.015 1.00190.82 ATOM 117 C LEU P 707 153.270 276.043 249.234 1.00190.82 ATOM 118 O LEU P 707 152.146 276.178 249.746 1.00190.82 ATOM 119 N ALA P 708 154.005 277.089 248.833 1.00200.09 ATOM 120 CA ALA P 708 153.486 278.451 248.970 1.00200.09 ATOM 121 C ALA P 708 152.294 278.685 248.045 1.00200.09 ATOM 122 O ALA P 708 151.367 279.436 248.379 1.00200.09 ATOM 123 N THR P 709 152.301 278.030 246.881 1.00203.62 ATOM 124 CA THR P 709 151.171 278.101 245.960 1.00203.62 ATOM 125 C THR P 709 149.942 277.418 246.553 1.00203.62 ATOM 126 O THR P 709 148.810 277.888 246.378 1.00203.62 ATOM 127 N LEU P 710 150.154 276.312 247.275 1.00208.39 ATOM 128 CA LEU P 710 149.055 275.631 247.957 1.00208.39 ATOM 129 C LEU P 710 148.454 276.510 249.048 1.00208.39 ATOM 130 O LEU P 710 147.223 276.590 249.195 1.00208.39 ATOM 131 N ILE P 711 149.316 277.193 249.812 1.00211.04 ATOM 132 CA ILE P 711 148.845 278.071 250.882 1.00211.04 ATOM 133 C ILE P 711 148.063 279.254 250.315 1.00211.04 ATOM 134 O ILE P 711 146.979 279.593 250.811 1.00211.04 ATOM 135 N GLN P 712 148.575 279.874 249.246 1.00213.84 ATOM 136 CA GLN P 712 147.875 281.014 248.655 1.00213.84 ATOM 137 C GLN P 712 146.587 280.583 247.962 1.00213.84 ATOM 138 O GLN P 712 145.626 281.360 247.883 1.00213.84 ATOM 139 N LYS P 713 146.549 279.345 247.465 1.00218.58 ATOM 140 CA LYS P 713 145.340 278.834 246.830 1.00218.58 ATOM 141 C LYS P 713 144.231 278.601 247.848 1.00218.58 ATOM 142 O LYS P 713 143.090 279.029 247.636 1.00218.58 ATOM 143 N ILE P 714 144.548 277.925 248.958 1.00225.85 ATOM 144 CA ILE P 714 143.528 277.644 249.967 1.00225.85 ATOM 145 C ILE P 714 143.138 278.926 250.709 1.00225.85 ATOM 146 O ILE P 714 141.971 279.113 251.081 1.00225.85 ATOM 147 N TYR P 715 144.078 279.863 250.859 1.00227.99 ATOM 148 CA TYR P 715 143.757 281.139 251.498 1.00227.99 ATOM 149 C TYR P 715 142.846 282.001 250.626 1.00227.99 ATOM 150 O TYR P 715 141.829 282.528 251.102 1.00227.99 ATOM 151 N ARG P 716 143.221 282.192 249.355 1.00233.37 ATOM 152 CA ARG P 716 142.398 282.998 248.454 1.00233.37 ATOM 153 C ARG P 716 141.058 282.320 248.186 1.00233.37 ATOM 154 O ARG P 716 140.039 282.995 248.001 1.00233.37 ATOM 155 N GLY P 717 141.033 280.987 248.204 1.00241.23 ATOM 156 CA GLY P 717 139.768 280.279 248.143 1.00241.23 ATOM 157 C GLY P 717 138.923 280.460 249.387 1.00241.23 ATOM 158 O GLY P 717 137.691 280.428 249.315 1.00241.23 ATOM 159 N TRP P 718 139.567 280.649 250.542 1.00245.70 ATOM 160 CA TRP P 718 138.828 281.005 251.749 1.00245.70 ATOM 161 C TRP P 718 138.251 282.410 251.628 1.00245.70 ATOM 162 O TRP P 718 137.162 282.692 252.142 1.00245.70 ATOM 163 N LYS P 719 138.955 283.298 250.920 1.00256.49 ATOM 164 CA LYS P 719 138.444 284.654 250.722 1.00256.49 ATOM 165 C LYS P 719 137.286 284.693 249.729 1.00256.49 ATOM 166 O LYS P 719 136.291 285.393 249.951 1.00256.49 ATOM 167 N CYS P 720 137.405 283.969 248.615 1.00268.96 ATOM 168 CA CYS P 720 136.353 283.997 247.603 1.00268.96 ATOM 169 C CYS P 720 135.136 283.202 248.058 1.00268.96 ATOM 170 O CYS P 720 133.992 283.576 247.762 1.00268.96 ATOM 171 N ARG P 721 135.368 282.104 248.784 1.00281.40 ATOM 172 CA ARG P 721 134.273 281.370 249.408 1.00281.40 ATOM 173 C ARG P 721 133.600 282.204 250.493 1.00281.40 ATOM 174 O ARG P 721 132.372 282.168 250.640 1.00281.40 ATOM 175 N THR P 722 134.388 282.978 251.248 1.00290.30 ATOM 176 CA THR P 722 133.826 283.834 252.291 1.00290.30 ATOM 177 C THR P 722 133.000 284.968 251.689 1.00290.30 ATOM 178 O THR P 722 131.911 285.287 252.184 1.00290.30 ATOM 179 N HIS P 723 133.487 285.564 250.597 1.00298.22 ATOM 180 CA HIS P 723 132.739 286.613 249.907 1.00298.22 ATOM 181 C HIS P 723 131.479 286.054 249.255 1.00298.22 ATOM 182 O HIS P 723 130.462 286.749 249.132 1.00298.22 ATOM 183 N PHE P 724 131.532 284.788 248.838 1.00316.61 ATOM 184 CA PHE P 724 130.353 284.130 248.285 1.00316.61 ATOM 185 C PHE P 724 129.314 283.855 249.368 1.00316.61 ATOM 186 O PHE P 724 128.106 283.979 249.133 1.00316.61 ATOM 187 N LEU P 725 129.770 283.492 250.572 1.00326.87 ATOM 188 CA LEU P 725 128.838 283.240 251.668 1.00326.87 ATOM 189 C LEU P 725 128.251 284.537 252.216 1.00326.87 ATOM 190 O LEU P 725 127.105 284.554 252.679 1.00326.87 ATOM 191 N LEU P 726 129.024 285.627 252.193 1.00334.47 ATOM 192 CA LEU P 726 128.471 286.925 252.570 1.00334.47 ATOM 193 C LEU P 726 127.491 287.423 251.516 1.00334.47 ATOM 194 O LEU P 726 126.473 288.048 251.844 1.00334.47 ATOM 195 N MET P 727 127.786 287.147 250.242 1.00347.53 ATOM 196 CA MET P 727 126.897 287.548 249.159 1.00347.53 ATOM 197 C MET P 727 125.597 286.751 249.190 1.00347.53 ATOM 198 O MET P 727 124.534 287.273 248.835 1.00347.53 ATOM 199 N LYS P 728 125.659 285.489 249.624 1.00351.84 ATOM 200 CA LYS P 728 124.430 284.748 249.893 1.00351.84 ATOM 201 C LYS P 728 123.736 285.273 251.143 1.00351.84 ATOM 202 O LYS P 728 122.501 285.273 251.223 1.00351.84 TER