HEADER METAL BINDING PROTEIN 31-DEC-69 6N5W TITLE Crystal structure of the Ca2+/CaM complex with independent peptides TITLE 2 of Kv7.4 (KCNQ4) A & B domains COMPND MOL_ID: 2; COMPND 2 MOLECULE: Potassium voltage-gated channel subfamily KQT member 4; COMPND 3 CHAIN: B; COMPND 4 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.15 ANGSTORMS DBREF 6N5W B 524 549 UNP P56696 KCNQ4_HUMAN 470 495 SEQRES 1 B 25 ASP ILE MET PRO ALA VAL LYS THR VAL ILE ARG SER ILE SEQRES 2 B 25 ARG ILE LEU LYS PHE LEU VAL ALA LYS ARG LYS PHE ATOM 1 N ASP B 525 -17.298 -11.064 -6.694 1.00 80.78 ATOM 2 CA ASP B 525 -17.899 -9.818 -6.221 1.00 85.49 ATOM 3 C ASP B 525 -17.272 -8.595 -6.896 1.00 80.91 ATOM 4 O ASP B 525 -16.073 -8.346 -6.773 1.00 83.18 ATOM 5 CB ASP B 525 -17.771 -9.698 -4.700 1.00 79.40 ATOM 6 CG ASP B 525 -18.571 -8.532 -4.133 1.00 84.30 ATOM 7 OD1 ASP B 525 -19.628 -8.193 -4.711 1.00 85.47 ATOM 8 OD2 ASP B 525 -18.144 -7.958 -3.105 1.00 86.94 ATOM 9 N ILE B 526 -18.118 -7.823 -7.585 1.00 68.77 ATOM 10 CA ILE B 526 -17.685 -6.710 -8.429 1.00 57.85 ATOM 11 C ILE B 526 -17.834 -5.363 -7.731 1.00 58.09 ATOM 12 O ILE B 526 -17.376 -4.339 -8.268 1.00 56.89 ATOM 13 CB ILE B 526 -18.483 -6.722 -9.756 1.00 54.45 ATOM 14 CG1 ILE B 526 -17.920 -5.739 -10.791 1.00 52.88 ATOM 15 CG2 ILE B 526 -19.967 -6.462 -9.479 1.00 52.28 ATOM 16 CD1 ILE B 526 -16.520 -6.089 -11.280 1.00 55.74 ATOM 17 N MET B 527 -18.442 -5.332 -6.548 1.00 54.22 ATOM 18 CA MET B 527 -18.780 -4.064 -5.900 1.00 54.50 ATOM 19 C MET B 527 -17.575 -3.185 -5.573 1.00 51.12 ATOM 20 O MET B 527 -17.642 -1.968 -5.826 1.00 43.78 ATOM 21 CB MET B 527 -19.607 -4.350 -4.641 1.00 59.76 ATOM 22 CG MET B 527 -20.313 -3.120 -4.103 1.00 63.48 ATOM 23 SD MET B 527 -21.706 -2.712 -5.161 1.00 77.83 ATOM 24 CE MET B 527 -22.625 -4.241 -4.949 1.00 60.74 ATOM 25 N PRO B 528 -16.481 -3.689 -4.984 1.00 55.28 ATOM 26 CA PRO B 528 -15.333 -2.791 -4.741 1.00 49.74 ATOM 27 C PRO B 528 -14.832 -2.155 -6.023 1.00 45.61 ATOM 28 O PRO B 528 -14.536 -0.954 -6.066 1.00 46.64 ATOM 29 CB PRO B 528 -14.276 -3.719 -4.119 1.00 52.23 ATOM 30 CG PRO B 528 -14.988 -4.904 -3.684 1.00 51.53 ATOM 31 CD PRO B 528 -16.212 -5.062 -4.523 1.00 51.10 ATOM 32 N ALA B 529 -14.760 -2.950 -7.086 1.00 35.12 ATOM 33 CA ALA B 529 -14.342 -2.440 -8.381 1.00 36.84 ATOM 34 C ALA B 529 -15.253 -1.310 -8.843 1.00 33.10 ATOM 35 O ALA B 529 -14.776 -0.248 -9.254 1.00 30.62 ATOM 36 CB ALA B 529 -14.338 -3.577 -9.391 1.00 36.06 ATOM 37 N VAL B 530 -16.567 -1.497 -8.722 1.00 35.46 ATOM 38 CA VAL B 530 -17.507 -0.472 -9.171 1.00 38.59 ATOM 39 C VAL B 530 -17.409 0.788 -8.312 1.00 38.28 ATOM 40 O VAL B 530 -17.416 1.916 -8.833 1.00 32.71 ATOM 41 CB VAL B 530 -18.937 -1.051 -9.203 1.00 38.37 ATOM 42 CG1 VAL B 530 -19.973 0.032 -8.970 1.00 33.68 ATOM 43 CG2 VAL B 530 -19.174 -1.705 -10.545 1.00 34.44 ATOM 44 N LYS B 531 -17.319 0.632 -6.989 1.00 41.85 ATOM 45 CA LYS B 531 -17.137 1.808 -6.146 1.00 36.42 ATOM 46 C LYS B 531 -15.873 2.577 -6.541 1.00 34.97 ATOM 47 O LYS B 531 -15.874 3.813 -6.600 1.00 42.18 ATOM 48 CB LYS B 531 -17.117 1.372 -4.677 1.00 45.14 ATOM 49 CG LYS B 531 -16.777 2.471 -3.690 1.00 55.05 ATOM 50 CD LYS B 531 -17.929 3.460 -3.470 1.00 64.40 ATOM 51 CE LYS B 531 -17.934 4.059 -2.059 1.00 67.03 ATOM 52 NZ LYS B 531 -18.270 3.027 -1.031 1.00 79.79 ATOM 53 N THR B 532 -14.805 1.861 -6.869 1.00 33.72 ATOM 54 CA THR B 532 -13.573 2.509 -7.312 1.00 36.91 ATOM 55 C THR B 532 -13.769 3.240 -8.640 1.00 32.19 ATOM 56 O THR B 532 -13.245 4.343 -8.842 1.00 30.55 ATOM 57 CB THR B 532 -12.486 1.451 -7.436 1.00 34.58 ATOM 58 OG1 THR B 532 -12.107 1.026 -6.124 1.00 33.40 ATOM 59 CG2 THR B 532 -11.274 2.015 -8.146 1.00 40.69 ATOM 60 N VAL B 533 -14.537 2.650 -9.553 1.00 35.20 ATOM 61 CA VAL B 533 -14.807 3.310 -10.829 1.00 29.72 ATOM 62 C VAL B 533 -15.543 4.621 -10.602 1.00 31.55 ATOM 63 O VAL B 533 -15.197 5.653 -11.196 1.00 32.81 ATOM 64 CB VAL B 533 -15.587 2.352 -11.755 1.00 28.60 ATOM 65 CG1 VAL B 533 -16.303 3.098 -12.863 1.00 25.91 ATOM 66 CG2 VAL B 533 -14.653 1.280 -12.342 1.00 26.58 ATOM 67 N ILE B 534 -16.544 4.615 -9.709 1.00 27.01 ATOM 68 CA ILE B 534 -17.306 5.835 -9.441 1.00 33.71 ATOM 69 C ILE B 534 -16.400 6.900 -8.822 1.00 32.79 ATOM 70 O ILE B 534 -16.431 8.070 -9.219 1.00 36.02 ATOM 71 CB ILE B 534 -18.523 5.509 -8.549 1.00 34.55 ATOM 72 CG1 ILE B 534 -19.590 4.757 -9.353 1.00 37.16 ATOM 73 CG2 ILE B 534 -19.139 6.775 -7.918 1.00 33.77 ATOM 74 CD1 ILE B 534 -20.568 4.005 -8.494 1.00 33.71 ATOM 75 N ARG B 535 -15.562 6.503 -7.863 1.00 36.11 ATOM 76 CA ARG B 535 -14.669 7.455 -7.226 1.00 41.07 ATOM 77 C ARG B 535 -13.717 8.052 -8.246 1.00 35.30 ATOM 78 O ARG B 535 -13.442 9.254 -8.214 1.00 37.84 ATOM 79 CB ARG B 535 -13.898 6.777 -6.083 1.00 38.82 ATOM 80 CG ARG B 535 -13.107 7.758 -5.215 1.00 44.95 ATOM 81 CD ARG B 535 -12.311 7.054 -4.105 1.00 49.34 ATOM 82 NE ARG B 535 -13.024 5.896 -3.561 1.00 63.22 ATOM 83 CZ ARG B 535 -12.664 4.627 -3.757 1.00 51.83 ATOM 84 NH1 ARG B 535 -11.599 4.327 -4.492 1.00 54.84 ATOM 85 NH2 ARG B 535 -13.384 3.655 -3.238 1.00 46.34 ATOM 86 N SER B 536 -13.243 7.239 -9.195 1.00 33.27 ATOM 87 CA SER B 536 -12.299 7.756 -10.180 1.00 34.77 ATOM 88 C SER B 536 -12.956 8.782 -11.101 1.00 33.90 ATOM 89 O SER B 536 -12.324 9.773 -11.478 1.00 36.75 ATOM 90 CB SER B 536 -11.692 6.611 -10.990 1.00 33.37 ATOM 91 OG SER B 536 -12.668 6.019 -11.824 1.00 41.40 ATOM 92 N ILE B 537 -14.222 8.574 -11.467 1.00 32.22 ATOM 93 CA ILE B 537 -14.923 9.569 -12.276 1.00 30.49 ATOM 94 C ILE B 537 -15.154 10.844 -11.475 1.00 31.92 ATOM 95 O ILE B 537 -15.082 11.955 -12.005 1.00 32.68 ATOM 96 CB ILE B 537 -16.244 8.994 -12.813 1.00 32.00 ATOM 97 CG1 ILE B 537 -15.957 7.912 -13.860 1.00 31.35 ATOM 98 CG2 ILE B 537 -17.107 10.118 -13.444 1.00 31.24 ATOM 99 CD1 ILE B 537 -17.139 7.027 -14.160 1.00 31.72 ATOM 100 N ARG B 538 -15.401 10.714 -10.175 1.00 37.31 ATOM 101 CA ARG B 538 -15.585 11.924 -9.388 1.00 33.49 ATOM 102 C ARG B 538 -14.268 12.652 -9.171 1.00 36.88 ATOM 103 O ARG B 538 -14.253 13.886 -9.095 1.00 36.51 ATOM 104 CB ARG B 538 -16.274 11.585 -8.073 1.00 38.46 ATOM 105 CG ARG B 538 -17.621 10.956 -8.349 1.00 37.08 ATOM 106 CD ARG B 538 -18.394 10.725 -7.107 1.00 38.41 ATOM 107 NE ARG B 538 -19.764 10.362 -7.436 1.00 43.78 ATOM 108 CZ ARG B 538 -20.640 9.946 -6.536 1.00 55.43 ATOM 109 NH1 ARG B 538 -20.267 9.855 -5.257 1.00 54.32 ATOM 110 NH2 ARG B 538 -21.870 9.605 -6.914 1.00 47.70 ATOM 111 N ILE B 539 -13.149 11.932 -9.128 1.00 30.84 ATOM 112 CA ILE B 539 -11.853 12.611 -9.083 1.00 33.75 ATOM 113 C ILE B 539 -11.617 13.395 -10.369 1.00 30.07 ATOM 114 O ILE B 539 -11.334 14.598 -10.338 1.00 30.64 ATOM 115 CB ILE B 539 -10.730 11.602 -8.805 1.00 35.93 ATOM 116 CG1 ILE B 539 -10.888 11.081 -7.376 1.00 32.49 ATOM 117 CG2 ILE B 539 -9.336 12.235 -9.021 1.00 30.02 ATOM 118 CD1 ILE B 539 -10.196 9.720 -7.108 1.00 39.61 ATOM 119 N LEU B 540 -11.796 12.743 -11.520 1.00 34.98 ATOM 120 CA LEU B 540 -11.685 13.433 -12.802 1.00 35.96 ATOM 121 C LEU B 540 -12.598 14.650 -12.863 1.00 37.12 ATOM 122 O LEU B 540 -12.163 15.737 -13.254 1.00 34.63 ATOM 123 CB LEU B 540 -11.987 12.469 -13.952 1.00 33.44 ATOM 124 CG LEU B 540 -10.966 11.342 -14.103 1.00 36.45 ATOM 125 CD1 LEU B 540 -11.336 10.444 -15.248 1.00 36.89 ATOM 126 CD2 LEU B 540 -9.564 11.922 -14.310 1.00 35.08 ATOM 127 N LYS B 541 -13.858 14.502 -12.426 1.00 37.05 ATOM 128 CA LYS B 541 -14.778 15.632 -12.446 1.00 38.80 ATOM 129 C LYS B 541 -14.301 16.741 -11.532 1.00 43.45 ATOM 130 O LYS B 541 -14.409 17.931 -11.865 1.00 42.03 ATOM 131 CB LYS B 541 -16.181 15.195 -12.038 1.00 42.20 ATOM 132 CG LYS B 541 -17.030 14.649 -13.182 1.00 42.56 ATOM 133 CD LYS B 541 -18.213 13.867 -12.610 1.00 42.19 ATOM 134 CE LYS B 541 -19.545 14.474 -12.988 1.00 46.26 ATOM 135 NZ LYS B 541 -19.761 14.312 -14.454 1.00 51.71 ATOM 136 N PHE B 542 -13.786 16.379 -10.365 1.00 34.48 ATOM 137 CA PHE B 542 -13.281 17.404 -9.477 1.00 36.38 ATOM 138 C PHE B 542 -12.093 18.122 -10.107 1.00 37.91 ATOM 139 O PHE B 542 -12.039 19.355 -10.126 1.00 33.19 ATOM 140 CB PHE B 542 -12.912 16.787 -8.129 1.00 40.39 ATOM 141 CG PHE B 542 -12.023 17.640 -7.328 1.00 38.60 ATOM 142 CD1 PHE B 542 -12.537 18.746 -6.654 1.00 36.10 ATOM 143 CD2 PHE B 542 -10.687 17.340 -7.213 1.00 36.84 ATOM 144 CE1 PHE B 542 -11.705 19.567 -5.886 1.00 39.39 ATOM 145 CE2 PHE B 542 -9.840 18.156 -6.436 1.00 42.00 ATOM 146 CZ PHE B 542 -10.351 19.275 -5.786 1.00 39.25 ATOM 147 N LEU B 543 -11.144 17.366 -10.670 1.00 36.05 ATOM 148 CA LEU B 543 -9.960 18.010 -11.238 1.00 34.94 ATOM 149 C LEU B 543 -10.326 18.939 -12.389 1.00 44.07 ATOM 150 O LEU B 543 -9.673 19.974 -12.586 1.00 39.31 ATOM 151 CB LEU B 543 -8.951 16.969 -11.710 1.00 35.71 ATOM 152 CG LEU B 543 -8.327 16.087 -10.625 1.00 39.94 ATOM 153 CD1 LEU B 543 -7.520 14.961 -11.241 1.00 30.60 ATOM 154 CD2 LEU B 543 -7.438 16.958 -9.716 1.00 45.67 ATOM 155 N VAL B 544 -11.363 18.598 -13.159 1.00 46.93 ATOM 156 CA VAL B 544 -11.730 19.471 -14.263 1.00 44.76 ATOM 157 C VAL B 544 -12.406 20.731 -13.746 1.00 43.90 ATOM 158 O VAL B 544 -12.080 21.841 -14.184 1.00 50.23 ATOM 159 CB VAL B 544 -12.603 18.735 -15.288 1.00 44.06 ATOM 160 CG1 VAL B 544 -13.033 19.713 -16.347 1.00 42.61 ATOM 161 CG2 VAL B 544 -11.806 17.626 -15.907 1.00 36.24 ATOM 162 N ALA B 545 -13.332 20.600 -12.786 1.00 35.94 ATOM 163 CA ALA B 545 -13.939 21.804 -12.223 1.00 35.49 ATOM 164 C ALA B 545 -12.895 22.698 -11.548 1.00 40.41 ATOM 165 O ALA B 545 -13.081 23.924 -11.469 1.00 40.61 ATOM 166 CB ALA B 545 -15.072 21.435 -11.260 1.00 31.77 ATOM 167 N LYS B 546 -11.769 22.124 -11.097 1.00 37.96 ATOM 168 CA LYS B 546 -10.722 22.963 -10.521 1.00 41.17 ATOM 169 C LYS B 546 -9.960 23.719 -11.608 1.00 47.99 ATOM 170 O LYS B 546 -9.690 24.919 -11.462 1.00 50.35 ATOM 171 CB LYS B 546 -9.778 22.123 -9.671 1.00 42.30 ATOM 172 CG LYS B 546 -8.794 22.950 -8.832 1.00 49.63 ATOM 173 CD LYS B 546 -8.046 22.082 -7.798 1.00 52.28 ATOM 174 CE LYS B 546 -7.368 20.891 -8.471 1.00 47.28 ATOM 175 NZ LYS B 546 -5.894 21.025 -8.394 1.00 48.73 ATOM 176 N ARG B 547 -9.608 23.032 -12.702 1.00 52.78 ATOM 177 CA ARG B 547 -8.974 23.688 -13.844 1.00 50.84 ATOM 178 C ARG B 547 -9.845 24.817 -14.386 1.00 51.76 ATOM 179 O ARG B 547 -9.347 25.914 -14.678 1.00 54.30 ATOM 180 CB ARG B 547 -8.696 22.646 -14.934 1.00 49.87 ATOM 181 CG ARG B 547 -7.789 23.099 -16.094 1.00 57.30 ATOM 182 CD ARG B 547 -6.366 23.440 -15.638 1.00 58.15 ATOM 183 NE ARG B 547 -5.730 22.361 -14.888 1.00 61.19 ATOM 184 CZ ARG B 547 -4.515 22.434 -14.345 1.00 66.97 ATOM 185 NH1 ARG B 547 -3.789 23.536 -14.469 1.00 69.80 ATOM 186 NH2 ARG B 547 -4.021 21.404 -13.673 1.00 63.90 ATOM 187 N LYS B 548 -11.158 24.575 -14.492 1.00 48.54 ATOM 188 CA LYS B 548 -12.075 25.539 -15.090 1.00 49.75 ATOM 189 C LYS B 548 -12.320 26.746 -14.206 1.00 49.94 ATOM 190 O LYS B 548 -12.701 27.802 -14.722 1.00 52.83 ATOM 191 CB LYS B 548 -13.428 24.897 -15.419 1.00 48.70 ATOM 192 CG LYS B 548 -13.367 23.622 -16.264 1.00 51.87 ATOM 193 CD LYS B 548 -13.235 23.906 -17.739 1.00 56.57 ATOM 194 CE LYS B 548 -12.328 22.876 -18.403 1.00 59.03 ATOM 195 NZ LYS B 548 -11.712 23.394 -19.663 1.00 60.26 ATOM 196 N PHE B 549 -12.138 26.617 -12.899 1.00 49.15 ATOM 197 CA PHE B 549 -12.339 27.745 -12.007 1.00 49.24 ATOM 198 C PHE B 549 -11.058 28.574 -11.977 1.00 60.00 ATOM 199 O PHE B 549 -9.961 28.045 -11.746 1.00 61.65 ATOM 200 CB PHE B 549 -12.731 27.275 -10.595 1.00 45.39 ATOM 201 CG PHE B 549 -12.912 28.400 -9.610 1.00 48.69 ATOM 202 CD1 PHE B 549 -14.106 29.104 -9.560 1.00 52.53 ATOM 203 CD2 PHE B 549 -11.902 28.752 -8.736 1.00 51.80 ATOM 204 CE1 PHE B 549 -14.281 30.153 -8.665 1.00 53.42 ATOM 205 CE2 PHE B 549 -12.070 29.794 -7.839 1.00 51.74 ATOM 206 CZ PHE B 549 -13.263 30.499 -7.806 1.00 51.12 ATOM 207 OXT PHE B 549 -11.104 29.786 -12.198 1.00 59.13 TER