HEADER METAL BINDING PROTEIN 20-APR-10 3MMK TITLE The structural basis for partial redundancy in a class of TITLE 2 transcription factors, the lim-homeodomain proteins, in neural cell TITLE 3 type specification COMPND MOL_ID: 1; COMPND 2 MOLECULE: Fusion of LIM/homeobox protein Lhx4, linker, Insulin gene COMPND 3 enhancer protein ISL-2; COMPND 4 CHAIN: A, B; COMPND 5 UNP RESIDUES 24-149 AND ; COMPND 6 ENGINEERED: YES; COMPND 7 Fusion of Lhx4 residues 24-149 to Isl2 residues 272-301 via a glycine COMPND 8 OTHER_DETAILS: rich linker with sequence GGSGGHMGSGG; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 2.16 ANGSTORMS DBREF 3MMK B 24 149 UNP P53776 LHX4_MOUSE 24 149 DBREF 3MMK B 261 271 PDB 3MMK 3MMK 261 271 DBREF 3MMK B 272 301 UNP Q9CXV0 ISL2_MOUSE 272 301 SEQRES 1 B 31 LYS CYS ALA ASP CYS GLN MET GLN LEU ALA ASP ARG CYS SEQRES 2 B 31 PHE SER ARG ALA GLY SER VAL TYR CYS LYS GLU ASP PHE SEQRES 3 B 31 PHE LYS ARG PHE GLY ATOM 1 N LYS B 56 12.268 21.351 59.596 1.00 59.12 ATOM 2 CA LYS B 56 12.114 21.169 61.034 1.00 59.86 ATOM 3 C LYS B 56 12.336 22.496 61.750 1.00 58.74 ATOM 4 O LYS B 56 13.029 23.372 61.235 1.00 58.07 ATOM 5 CB LYS B 56 13.103 20.121 61.547 1.00 57.86 ATOM 6 N CYS B 57 11.749 22.645 62.935 1.00 58.90 ATOM 7 CA CYS B 57 11.876 23.892 63.685 1.00 59.67 ATOM 8 C CYS B 57 13.310 24.119 64.140 1.00 60.99 ATOM 9 O CYS B 57 13.965 23.207 64.639 1.00 62.99 ATOM 10 CB CYS B 57 10.940 23.914 64.894 1.00 59.07 ATOM 11 SG CYS B 57 11.065 25.440 65.873 1.00 65.18 ATOM 12 N ALA B 58 13.792 25.344 63.967 1.00 60.38 ATOM 13 CA ALA B 58 15.157 25.685 64.347 1.00 62.38 ATOM 14 C ALA B 58 15.362 25.577 65.854 1.00 62.05 ATOM 15 O ALA B 58 16.487 25.405 66.322 1.00 58.33 ATOM 16 CB ALA B 58 15.504 27.080 63.867 1.00 63.53 ATOM 17 N ASP B 59 14.269 25.672 66.606 1.00 65.11 ATOM 18 CA ASP B 59 14.342 25.685 68.064 1.00 68.67 ATOM 19 C ASP B 59 14.245 24.291 68.680 1.00 72.76 ATOM 20 O ASP B 59 15.207 23.801 69.270 1.00 76.25 ATOM 21 CB ASP B 59 13.264 26.599 68.649 1.00 69.22 ATOM 22 N CYS B 60 13.086 23.654 68.544 1.00 71.42 ATOM 23 CA CYS B 60 12.868 22.346 69.158 1.00 69.57 ATOM 24 C CYS B 60 13.176 21.184 68.210 1.00 69.94 ATOM 25 O CYS B 60 13.006 20.019 68.570 1.00 67.31 ATOM 26 CB CYS B 60 11.438 22.228 69.686 1.00 68.34 ATOM 27 SG CYS B 60 10.195 21.939 68.411 1.00 73.15 ATOM 28 N GLN B 61 13.624 21.512 67.001 1.00 69.23 ATOM 29 CA GLN B 61 14.020 20.508 66.015 1.00 65.10 ATOM 30 C GLN B 61 12.881 19.576 65.602 1.00 65.16 ATOM 31 O GLN B 61 13.121 18.512 65.033 1.00 68.77 ATOM 32 CB GLN B 61 15.215 19.694 66.522 1.00 62.30 ATOM 33 N MET B 62 11.644 19.977 65.882 1.00 63.81 ATOM 34 CA MET B 62 10.481 19.177 65.499 1.00 63.55 ATOM 35 C MET B 62 10.126 19.368 64.028 1.00 67.55 ATOM 36 O MET B 62 10.220 20.473 63.493 1.00 68.43 ATOM 37 CB MET B 62 9.272 19.523 66.371 1.00 61.76 ATOM 38 N GLN B 63 9.711 18.284 63.380 1.00 69.88 ATOM 39 CA GLN B 63 9.348 18.330 61.969 1.00 72.46 ATOM 40 C GLN B 63 8.087 19.156 61.744 1.00 74.04 ATOM 41 O GLN B 63 7.114 19.033 62.487 1.00 75.84 ATOM 42 CB GLN B 63 9.151 16.914 61.420 1.00 72.05 ATOM 43 N LEU B 64 8.110 19.998 60.717 1.00 72.01 ATOM 44 CA LEU B 64 6.936 20.779 60.348 1.00 71.11 ATOM 45 C LEU B 64 6.132 20.079 59.262 1.00 72.53 ATOM 46 O LEU B 64 6.572 19.977 58.117 1.00 74.11 ATOM 47 CB LEU B 64 7.331 22.183 59.882 1.00 70.53 ATOM 48 CG LEU B 64 7.589 23.216 60.980 1.00 72.17 ATOM 49 CD1 LEU B 64 6.602 23.029 62.124 1.00 70.41 ATOM 50 CD2 LEU B 64 9.020 23.146 61.479 1.00 73.30 ATOM 51 N ALA B 65 4.952 19.595 59.630 1.00 75.67 ATOM 52 CA ALA B 65 4.058 18.952 58.677 1.00 78.63 ATOM 53 C ALA B 65 2.827 19.819 58.471 1.00 84.23 ATOM 54 O ALA B 65 2.284 19.898 57.368 1.00 87.20 ATOM 55 CB ALA B 65 3.656 17.578 59.176 1.00 78.06 ATOM 56 N ASP B 66 2.400 20.474 59.546 1.00 84.90 ATOM 57 CA ASP B 66 1.207 21.307 59.525 1.00 83.70 ATOM 58 C ASP B 66 1.483 22.642 58.837 1.00 82.36 ATOM 59 O ASP B 66 1.335 22.772 57.621 1.00 83.01 ATOM 60 CB ASP B 66 0.702 21.549 60.953 1.00 85.46 ATOM 61 CG ASP B 66 0.810 20.312 61.835 1.00 86.97 ATOM 62 OD1 ASP B 66 -0.228 19.861 62.365 1.00 84.99 ATOM 63 OD2 ASP B 66 1.932 19.790 62.004 1.00 89.79 ATOM 64 N ARG B 67 1.887 23.630 59.628 1.00 78.52 ATOM 65 CA ARG B 67 2.148 24.973 59.123 1.00 71.74 ATOM 66 C ARG B 67 3.603 25.366 59.353 1.00 65.55 ATOM 67 O ARG B 67 4.206 24.995 60.358 1.00 65.24 ATOM 68 CB ARG B 67 1.218 25.986 59.800 1.00 71.94 ATOM 69 CG ARG B 67 -0.219 25.972 59.288 1.00 73.77 ATOM 70 CD ARG B 67 -0.454 27.055 58.239 1.00 77.07 ATOM 71 NE ARG B 67 -1.704 26.854 57.509 1.00 77.44 ATOM 72 CZ ARG B 67 -2.205 27.716 56.628 1.00 76.23 ATOM 73 NH1 ARG B 67 -1.569 28.849 56.369 1.00 72.39 ATOM 74 NH2 ARG B 67 -3.346 27.447 56.008 1.00 77.32 ATOM 75 N CYS B 68 4.162 26.122 58.415 1.00 62.37 ATOM 76 CA CYS B 68 5.543 26.576 58.519 1.00 55.91 ATOM 77 C CYS B 68 5.623 28.078 58.761 1.00 58.73 ATOM 78 O CYS B 68 5.059 28.865 58.005 1.00 59.14 ATOM 79 CB CYS B 68 6.311 26.226 57.244 1.00 49.05 ATOM 80 SG CYS B 68 7.991 26.862 57.209 1.00 60.55 ATOM 81 N PHE B 69 6.333 28.472 59.814 1.00 61.35 ATOM 82 CA PHE B 69 6.554 29.886 60.099 1.00 61.57 ATOM 83 C PHE B 69 7.994 30.268 59.787 1.00 67.34 ATOM 84 O PHE B 69 8.931 29.678 60.324 1.00 71.52 ATOM 85 CB PHE B 69 6.220 30.203 61.559 1.00 61.02 ATOM 86 CG PHE B 69 4.778 29.969 61.912 1.00 63.30 ATOM 87 CD1 PHE B 69 3.904 31.035 62.063 1.00 65.21 ATOM 88 CD2 PHE B 69 4.292 28.683 62.081 1.00 60.39 ATOM 89 CE1 PHE B 69 2.576 30.823 62.383 1.00 62.22 ATOM 90 CE2 PHE B 69 2.967 28.465 62.400 1.00 63.51 ATOM 91 CZ PHE B 69 2.107 29.538 62.552 1.00 62.60 ATOM 92 N SER B 70 8.163 31.254 58.913 1.00 70.46 ATOM 93 CA SER B 70 9.490 31.678 58.487 1.00 70.17 ATOM 94 C SER B 70 9.848 33.049 59.041 1.00 73.22 ATOM 95 O SER B 70 8.974 33.874 59.306 1.00 74.04 ATOM 96 CB SER B 70 9.580 31.694 56.960 1.00 71.44 ATOM 97 OG SER B 70 9.305 30.411 56.423 1.00 75.64 ATOM 98 N ARG B 71 11.143 33.281 59.218 1.00 73.58 ATOM 99 CA ARG B 71 11.648 34.562 59.692 1.00 72.03 ATOM 100 C ARG B 71 13.157 34.591 59.494 1.00 71.91 ATOM 101 O ARG B 71 13.883 33.776 60.068 1.00 70.96 ATOM 102 CB ARG B 71 11.294 34.778 61.164 1.00 70.86 ATOM 103 CG ARG B 71 11.611 36.171 61.682 1.00 71.92 ATOM 104 N ALA B 72 13.618 35.525 58.668 1.00 70.02 ATOM 105 CA ALA B 72 15.023 35.600 58.285 1.00 67.81 ATOM 106 C ALA B 72 15.414 34.400 57.426 1.00 69.72 ATOM 107 O ALA B 72 14.903 34.224 56.318 1.00 67.76 ATOM 108 CB ALA B 72 15.916 35.702 59.514 1.00 65.82 ATOM 109 N GLY B 73 16.318 33.573 57.942 1.00 70.60 ATOM 110 CA GLY B 73 16.791 32.418 57.202 1.00 68.72 ATOM 111 C GLY B 73 16.510 31.101 57.898 1.00 67.54 ATOM 112 O GLY B 73 17.142 30.085 57.605 1.00 68.66 ATOM 113 N SER B 74 15.556 31.114 58.822 1.00 65.63 ATOM 114 CA SER B 74 15.212 29.910 59.563 1.00 62.69 ATOM 115 C SER B 74 13.706 29.668 59.581 1.00 60.00 ATOM 116 O SER B 74 12.920 30.559 59.256 1.00 57.95 ATOM 117 CB SER B 74 15.754 29.991 60.991 1.00 65.04 ATOM 118 OG SER B 74 17.168 30.067 60.987 1.00 65.98 ATOM 119 N VAL B 75 13.314 28.455 59.958 1.00 55.14 ATOM 120 CA VAL B 75 11.905 28.094 60.030 1.00 53.42 ATOM 121 C VAL B 75 11.536 27.654 61.442 1.00 56.55 ATOM 122 O VAL B 75 12.375 27.136 62.179 1.00 58.25 ATOM 123 CB VAL B 75 11.556 26.983 59.021 1.00 50.37 ATOM 124 CG1 VAL B 75 11.734 27.498 57.598 1.00 49.46 ATOM 125 CG2 VAL B 75 12.420 25.750 59.259 1.00 46.12 ATOM 126 N TYR B 76 10.281 27.873 61.821 1.00 56.33 ATOM 127 CA TYR B 76 9.836 27.573 63.174 1.00 52.61 ATOM 128 C TYR B 76 8.434 26.980 63.191 1.00 50.77 ATOM 129 O TYR B 76 7.669 27.131 62.237 1.00 53.16 ATOM 130 CB TYR B 76 9.843 28.845 64.029 1.00 54.23 ATOM 131 CG TYR B 76 11.168 29.574 64.067 1.00 56.78 ATOM 132 CD1 TYR B 76 12.017 29.459 65.162 1.00 57.69 ATOM 133 CD2 TYR B 76 11.568 30.384 63.011 1.00 55.18 ATOM 134 CE1 TYR B 76 13.230 30.130 65.202 1.00 56.15 ATOM 135 CE2 TYR B 76 12.777 31.056 63.042 1.00 58.67 ATOM 136 CZ TYR B 76 13.605 30.926 64.140 1.00 59.61 ATOM 137 OH TYR B 76 14.810 31.598 64.173 1.00 60.13 ATOM 138 N CYS B 77 8.106 26.301 64.285 1.00 47.53 ATOM 139 CA CYS B 77 6.727 25.944 64.583 1.00 54.12 ATOM 140 C CYS B 77 6.092 27.149 65.267 1.00 58.84 ATOM 141 O CYS B 77 6.802 28.025 65.757 1.00 60.28 ATOM 142 CB CYS B 77 6.679 24.738 65.515 1.00 57.07 ATOM 143 SG CYS B 77 7.183 25.106 67.214 1.00 68.44 ATOM 144 N LYS B 78 4.764 27.193 65.306 1.00 64.46 ATOM 145 CA LYS B 78 4.050 28.352 65.848 1.00 69.68 ATOM 146 C LYS B 78 4.531 28.762 67.239 1.00 72.61 ATOM 147 O LYS B 78 4.834 29.931 67.477 1.00 77.21 ATOM 148 CB LYS B 78 2.541 28.098 65.873 1.00 70.95 ATOM 149 N GLU B 79 4.597 27.798 68.152 1.00 73.54 ATOM 150 CA GLU B 79 5.007 28.065 69.528 1.00 75.87 ATOM 151 C GLU B 79 6.370 28.752 69.605 1.00 80.11 ATOM 152 O GLU B 79 6.478 29.883 70.082 1.00 82.42 ATOM 153 CB GLU B 79 5.022 26.768 70.344 1.00 75.64 ATOM 154 N ASP B 80 7.407 28.068 69.130 1.00 80.78 ATOM 155 CA ASP B 80 8.765 28.609 69.166 1.00 79.83 ATOM 156 C ASP B 80 8.922 29.878 68.328 1.00 77.00 ATOM 157 O ASP B 80 9.917 30.592 68.454 1.00 77.38 ATOM 158 CB ASP B 80 9.784 27.552 68.727 1.00 82.09 ATOM 159 CG ASP B 80 10.189 26.628 69.861 1.00 85.33 ATOM 160 OD1 ASP B 80 10.658 25.504 69.582 1.00 86.58 ATOM 161 OD2 ASP B 80 10.040 27.029 71.034 1.00 86.64 ATOM 162 N PHE B 81 7.941 30.157 67.476 1.00 74.67 ATOM 163 CA PHE B 81 7.969 31.363 66.655 1.00 71.39 ATOM 164 C PHE B 81 7.548 32.589 67.463 1.00 77.15 ATOM 165 O PHE B 81 8.291 33.567 67.552 1.00 77.35 ATOM 166 CB PHE B 81 7.076 31.205 65.421 1.00 66.32 ATOM 167 CG PHE B 81 7.059 32.412 64.528 1.00 66.81 ATOM 168 CD1 PHE B 81 7.968 32.538 63.491 1.00 68.42 ATOM 169 CD2 PHE B 81 6.135 33.426 64.728 1.00 68.91 ATOM 170 CE1 PHE B 81 7.956 33.652 62.669 1.00 69.92 ATOM 171 CE2 PHE B 81 6.118 34.544 63.909 1.00 69.07 ATOM 172 CZ PHE B 81 7.030 34.657 62.880 1.00 69.14 ATOM 173 N PHE B 82 6.357 32.534 68.051 1.00 82.64 ATOM 174 CA PHE B 82 5.849 33.651 68.843 1.00 88.90 ATOM 175 C PHE B 82 6.706 33.912 70.078 1.00 91.12 ATOM 176 O PHE B 82 6.820 35.048 70.535 1.00 94.84 ATOM 177 CB PHE B 82 4.392 33.416 69.247 1.00 91.53 ATOM 178 CG PHE B 82 3.416 33.598 68.122 1.00 94.53 ATOM 179 CD1 PHE B 82 2.587 32.561 67.730 1.00 95.86 ATOM 180 CD2 PHE B 82 3.335 34.805 67.448 1.00 96.17 ATOM 181 CE1 PHE B 82 1.689 32.727 66.691 1.00 96.76 ATOM 182 CE2 PHE B 82 2.441 34.978 66.408 1.00 96.93 ATOM 183 CZ PHE B 82 1.617 33.938 66.029 1.00 97.17 ATOM 184 N LYS B 83 7.307 32.856 70.614 1.00 90.93 ATOM 185 CA LYS B 83 8.173 32.987 71.778 1.00 89.86 ATOM 186 C LYS B 83 9.446 33.744 71.420 1.00 88.68 ATOM 187 O LYS B 83 10.164 34.222 72.299 1.00 90.46 ATOM 188 CB LYS B 83 8.522 31.610 72.346 1.00 91.27 ATOM 189 N ARG B 84 9.718 33.855 70.124 1.00 84.61 ATOM 190 CA ARG B 84 10.937 34.499 69.652 1.00 81.14 ATOM 191 C ARG B 84 10.654 35.836 68.977 1.00 80.92 ATOM 192 O ARG B 84 11.292 36.846 69.280 1.00 81.80 ATOM 193 CB ARG B 84 11.686 33.578 68.688 1.00 81.94 ATOM 194 N PHE B 85 9.697 35.838 68.056 1.00 77.37 ATOM 195 CA PHE B 85 9.377 37.038 67.298 1.00 72.27 ATOM 196 C PHE B 85 7.979 37.551 67.622 1.00 70.60 ATOM 197 O PHE B 85 7.175 36.856 68.239 1.00 70.11 ATOM 198 CB PHE B 85 9.506 36.770 65.797 1.00 71.51 ATOM 199 N GLY B 86 7.703 38.783 67.214 1.00 71.24 ATOM 200 CA GLY B 86 6.383 39.357 67.376 1.00 73.46 ATOM 201 C GLY B 86 5.849 39.778 66.024 1.00 73.38 ATOM 202 O GLY B 86 6.535 39.633 65.013 1.00 76.58 ATOM 203 ZN ZN B 871 9.528 24.430 67.750 0.90 80.42 TER