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 28 THR LYS CYS THR ALA CYS GLN GLN GLY ILE PRO PRO THR SEQRES 2 B 28 GLN VAL VAL ARG LYS ALA GLN ASP PHE VAL TYR HIS LEU SEQRES 3 B 28 HIS CYS ATOM 1 N THR B 87 4.624 40.289 65.997 1.00 68.90 ATOM 2 CA THR B 87 4.055 40.803 64.759 1.00 65.27 ATOM 3 C THR B 87 4.038 42.326 64.796 1.00 57.08 ATOM 4 O THR B 87 3.773 42.927 65.836 1.00 52.34 ATOM 5 CB THR B 87 2.627 40.274 64.517 1.00 69.01 ATOM 6 OG1 THR B 87 2.615 38.846 64.633 1.00 75.95 ATOM 7 CG2 THR B 87 2.136 40.668 63.129 1.00 67.49 ATOM 8 N LYS B 88 4.340 42.944 63.662 1.00 55.14 ATOM 9 CA LYS B 88 4.324 44.393 63.561 1.00 55.97 ATOM 10 C LYS B 88 3.063 44.841 62.835 1.00 53.06 ATOM 11 O LYS B 88 2.692 44.269 61.812 1.00 52.61 ATOM 12 CB LYS B 88 5.570 44.890 62.826 1.00 59.00 ATOM 13 N CYS B 89 2.403 45.859 63.375 1.00 51.68 ATOM 14 CA CYS B 89 1.189 46.392 62.771 1.00 49.86 ATOM 15 C CYS B 89 1.474 46.943 61.378 1.00 49.30 ATOM 16 O CYS B 89 2.436 47.681 61.177 1.00 49.79 ATOM 17 CB CYS B 89 0.586 47.479 63.661 1.00 50.65 ATOM 18 SG CYS B 89 -0.883 48.292 62.974 1.00 42.75 ATOM 19 N THR B 90 0.632 46.574 60.419 1.00 43.65 ATOM 20 CA THR B 90 0.782 47.017 59.036 1.00 44.99 ATOM 21 C THR B 90 0.735 48.542 58.874 1.00 46.94 ATOM 22 O THR B 90 1.460 49.109 58.052 1.00 49.79 ATOM 23 CB THR B 90 -0.301 46.381 58.135 1.00 48.39 ATOM 24 OG1 THR B 90 -0.064 44.973 58.023 1.00 52.57 ATOM 25 CG2 THR B 90 -0.289 47.005 56.746 1.00 47.15 ATOM 26 N ALA B 91 -0.114 49.201 59.658 1.00 41.75 ATOM 27 CA ALA B 91 -0.329 50.638 59.513 1.00 44.84 ATOM 28 C ALA B 91 0.772 51.488 60.150 1.00 46.41 ATOM 29 O ALA B 91 1.289 52.413 59.522 1.00 44.78 ATOM 30 CB ALA B 91 -1.696 51.033 60.068 1.00 41.39 ATOM 31 N CYS B 92 1.129 51.181 61.393 1.00 46.89 ATOM 32 CA CYS B 92 2.100 52.003 62.114 1.00 46.47 ATOM 33 C CYS B 92 3.472 51.346 62.194 1.00 49.83 ATOM 34 O CYS B 92 4.454 51.982 62.574 1.00 51.69 ATOM 35 CB CYS B 92 1.591 52.352 63.513 1.00 44.54 ATOM 36 SG CYS B 92 1.685 51.016 64.721 1.00 50.45 ATOM 37 N GLN B 93 3.526 50.069 61.836 1.00 48.07 ATOM 38 CA GLN B 93 4.782 49.334 61.747 1.00 53.25 ATOM 39 C GLN B 93 5.466 49.185 63.106 1.00 55.14 ATOM 40 O GLN B 93 6.667 48.929 63.185 1.00 55.22 ATOM 41 CB GLN B 93 5.718 49.993 60.731 1.00 59.44 ATOM 42 CG GLN B 93 6.513 49.004 59.904 1.00 66.03 ATOM 43 CD GLN B 93 5.626 48.094 59.075 1.00 70.83 ATOM 44 OE1 GLN B 93 5.606 46.879 59.271 1.00 71.07 ATOM 45 NE2 GLN B 93 4.880 48.682 58.146 1.00 72.94 ATOM 46 N GLN B 94 4.695 49.343 64.176 1.00 53.81 ATOM 47 CA GLN B 94 5.209 49.103 65.516 1.00 54.46 ATOM 48 C GLN B 94 4.725 47.756 66.036 1.00 53.20 ATOM 49 O GLN B 94 3.755 47.198 65.526 1.00 48.43 ATOM 50 CB GLN B 94 4.802 50.226 66.469 1.00 56.22 ATOM 51 CG GLN B 94 5.350 51.584 66.077 1.00 60.87 ATOM 52 CD GLN B 94 5.611 52.469 67.276 1.00 66.25 ATOM 53 OE1 GLN B 94 4.983 53.513 67.438 1.00 68.68 ATOM 54 NE2 GLN B 94 6.539 52.051 68.130 1.00 68.96 ATOM 55 N GLY B 95 5.406 47.238 67.051 1.00 56.16 ATOM 56 CA GLY B 95 5.117 45.912 67.566 1.00 56.23 ATOM 57 C GLY B 95 3.744 45.771 68.193 1.00 56.56 ATOM 58 O GLY B 95 3.233 46.695 68.827 1.00 57.23 ATOM 59 N ILE B 96 3.142 44.603 68.008 1.00 56.92 ATOM 60 CA ILE B 96 1.866 44.293 68.633 1.00 56.46 ATOM 61 C ILE B 96 2.084 43.438 69.872 1.00 56.44 ATOM 62 O ILE B 96 2.693 42.372 69.793 1.00 58.60 ATOM 63 CB ILE B 96 0.941 43.535 67.672 1.00 55.19 ATOM 64 CG1 ILE B 96 0.642 44.393 66.440 1.00 53.86 ATOM 65 CG2 ILE B 96 -0.343 43.136 68.380 1.00 53.61 ATOM 66 CD1 ILE B 96 -0.322 43.751 65.470 1.00 54.38 ATOM 67 N PRO B 97 1.590 43.908 71.026 1.00 55.53 ATOM 68 CA PRO B 97 1.687 43.140 72.270 1.00 58.25 ATOM 69 C PRO B 97 1.154 41.731 72.050 1.00 62.32 ATOM 70 O PRO B 97 0.103 41.575 71.427 1.00 62.51 ATOM 71 CB PRO B 97 0.771 43.907 73.227 1.00 57.42 ATOM 72 CG PRO B 97 0.739 45.296 72.691 1.00 54.14 ATOM 73 CD PRO B 97 0.840 45.164 71.201 1.00 52.28 ATOM 74 N PRO B 98 1.874 40.714 72.548 1.00 67.59 ATOM 75 CA PRO B 98 1.510 39.306 72.338 1.00 70.32 ATOM 76 C PRO B 98 0.188 38.962 73.013 1.00 69.57 ATOM 77 O PRO B 98 -0.446 37.964 72.672 1.00 68.93 ATOM 78 CB PRO B 98 2.649 38.538 73.024 1.00 71.13 ATOM 79 CG PRO B 98 3.752 39.535 73.217 1.00 70.08 ATOM 80 CD PRO B 98 3.080 40.857 73.378 1.00 68.94 ATOM 81 N THR B 99 -0.220 39.801 73.958 1.00 69.30 ATOM 82 CA THR B 99 -1.376 39.522 74.799 1.00 71.17 ATOM 83 C THR B 99 -2.702 40.027 74.227 1.00 70.82 ATOM 84 O THR B 99 -3.758 39.451 74.495 1.00 72.54 ATOM 85 CB THR B 99 -1.186 40.131 76.202 1.00 73.41 ATOM 86 OG1 THR B 99 -0.805 41.509 76.081 1.00 67.72 ATOM 87 CG2 THR B 99 -0.103 39.377 76.967 1.00 77.05 ATOM 88 N GLN B 100 -2.654 41.097 73.442 1.00 65.68 ATOM 89 CA GLN B 100 -3.886 41.753 73.014 1.00 62.25 ATOM 90 C GLN B 100 -4.445 41.235 71.693 1.00 52.90 ATOM 91 O GLN B 100 -3.741 40.602 70.906 1.00 54.82 ATOM 92 CB GLN B 100 -3.708 43.274 72.961 1.00 64.98 ATOM 93 CG GLN B 100 -2.844 43.783 71.822 1.00 64.26 ATOM 94 CD GLN B 100 -2.744 45.300 71.815 1.00 63.39 ATOM 95 OE1 GLN B 100 -2.907 45.950 72.851 1.00 62.45 ATOM 96 NE2 GLN B 100 -2.477 45.871 70.644 1.00 57.57 ATOM 97 N VAL B 101 -5.727 41.504 71.471 1.00 48.67 ATOM 98 CA VAL B 101 -6.391 41.148 70.226 1.00 52.00 ATOM 99 C VAL B 101 -6.063 42.160 69.133 1.00 46.82 ATOM 100 O VAL B 101 -5.652 43.280 69.419 1.00 50.24 ATOM 101 CB VAL B 101 -7.917 41.067 70.408 1.00 53.81 ATOM 102 CG1 VAL B 101 -8.275 39.930 71.355 1.00 55.11 ATOM 103 CG2 VAL B 101 -8.455 42.388 70.929 1.00 50.99 ATOM 104 N VAL B 102 -6.242 41.750 67.883 1.00 44.70 ATOM 105 CA VAL B 102 -5.911 42.580 66.736 1.00 44.56 ATOM 106 C VAL B 102 -6.990 42.462 65.669 1.00 45.39 ATOM 107 O VAL B 102 -7.940 41.690 65.815 1.00 41.65 ATOM 108 CB VAL B 102 -4.562 42.165 66.113 1.00 48.08 ATOM 109 CG1 VAL B 102 -3.429 42.338 67.116 1.00 47.74 ATOM 110 CG2 VAL B 102 -4.627 40.725 65.610 1.00 47.35 ATOM 111 N ARG B 103 -6.844 43.239 64.601 1.00 43.01 ATOM 112 CA ARG B 103 -7.732 43.140 63.454 1.00 40.87 ATOM 113 C ARG B 103 -6.955 42.577 62.281 1.00 43.40 ATOM 114 O ARG B 103 -5.735 42.718 62.205 1.00 42.37 ATOM 115 CB ARG B 103 -8.297 44.507 63.078 1.00 36.98 ATOM 116 CG ARG B 103 -9.125 45.161 64.168 1.00 42.51 ATOM 117 CD ARG B 103 -10.561 44.669 64.175 1.00 41.41 ATOM 118 NE ARG B 103 -11.408 45.547 64.978 1.00 45.31 ATOM 119 CZ ARG B 103 -12.713 45.383 65.149 1.00 46.00 ATOM 120 NH1 ARG B 103 -13.335 44.363 64.575 1.00 46.81 ATOM 121 NH2 ARG B 103 -13.397 46.241 65.893 1.00 45.71 ATOM 122 N LYS B 104 -7.667 41.945 61.359 1.00 46.78 ATOM 123 CA LYS B 104 -7.029 41.353 60.200 1.00 50.72 ATOM 124 C LYS B 104 -7.781 41.724 58.931 1.00 47.10 ATOM 125 O LYS B 104 -9.008 41.810 58.925 1.00 51.95 ATOM 126 CB LYS B 104 -6.974 39.833 60.361 1.00 59.12 ATOM 127 CG LYS B 104 -5.943 39.140 59.493 1.00 64.79 ATOM 128 CD LYS B 104 -5.832 37.672 59.871 1.00 67.84 ATOM 129 CE LYS B 104 -4.894 36.926 58.942 1.00 70.93 ATOM 130 NZ LYS B 104 -4.860 35.472 59.260 1.00 76.14 ATOM 131 N ALA B 105 -7.027 41.976 57.868 1.00 42.68 ATOM 132 CA ALA B 105 -7.583 42.107 56.529 1.00 40.72 ATOM 133 C ALA B 105 -6.642 41.377 55.584 1.00 41.25 ATOM 134 O ALA B 105 -5.510 41.809 55.370 1.00 41.89 ATOM 135 CB ALA B 105 -7.721 43.571 56.136 1.00 38.98 ATOM 136 N GLN B 106 -7.116 40.269 55.025 1.00 39.79 ATOM 137 CA GLN B 106 -6.255 39.341 54.293 1.00 48.77 ATOM 138 C GLN B 106 -5.072 38.911 55.159 1.00 50.63 ATOM 139 O GLN B 106 -5.265 38.373 56.248 1.00 49.28 ATOM 140 CB GLN B 106 -5.789 39.932 52.959 1.00 49.83 ATOM 141 CG GLN B 106 -6.887 39.986 51.902 1.00 49.62 ATOM 142 CD GLN B 106 -6.381 40.421 50.540 1.00 51.50 ATOM 143 OE1 GLN B 106 -5.251 40.893 50.402 1.00 54.17 ATOM 144 NE2 GLN B 106 -7.218 40.262 49.522 1.00 50.76 ATOM 145 N ASP B 107 -3.855 39.156 54.685 1.00 52.05 ATOM 146 CA ASP B 107 -2.660 38.763 55.426 1.00 53.02 ATOM 147 C ASP B 107 -2.171 39.843 56.391 1.00 55.19 ATOM 148 O ASP B 107 -1.272 39.597 57.196 1.00 56.47 ATOM 149 CB ASP B 107 -1.535 38.378 54.461 1.00 56.55 ATOM 150 N PHE B 108 -2.761 41.035 56.310 1.00 50.38 ATOM 151 CA PHE B 108 -2.341 42.159 57.145 1.00 44.96 ATOM 152 C PHE B 108 -2.938 42.098 58.550 1.00 44.05 ATOM 153 O PHE B 108 -4.093 41.712 58.732 1.00 41.95 ATOM 154 CB PHE B 108 -2.709 43.497 56.494 1.00 45.50 ATOM 155 CG PHE B 108 -2.138 43.689 55.114 1.00 47.61 ATOM 156 CD1 PHE B 108 -0.791 43.969 54.937 1.00 49.12 ATOM 157 CD2 PHE B 108 -2.953 43.609 53.996 1.00 43.28 ATOM 158 CE1 PHE B 108 -0.267 44.150 53.671 1.00 46.23 ATOM 159 CE2 PHE B 108 -2.436 43.789 52.728 1.00 41.86 ATOM 160 CZ PHE B 108 -1.092 44.062 52.564 1.00 44.06 ATOM 161 N VAL B 109 -2.136 42.494 59.535 1.00 44.09 ATOM 162 CA VAL B 109 -2.571 42.562 60.924 1.00 40.31 ATOM 163 C VAL B 109 -2.440 43.999 61.434 1.00 37.26 ATOM 164 O VAL B 109 -1.466 44.683 61.129 1.00 37.35 ATOM 165 CB VAL B 109 -1.727 41.629 61.810 1.00 45.74 ATOM 166 CG1 VAL B 109 -2.251 41.626 63.236 1.00 47.41 ATOM 167 CG2 VAL B 109 -1.723 40.218 61.237 1.00 43.86 ATOM 168 N TYR B 110 -3.420 44.452 62.210 1.00 35.25 ATOM 169 CA TYR B 110 -3.441 45.828 62.688 1.00 38.24 ATOM 170 C TYR B 110 -3.764 45.905 64.173 1.00 40.72 ATOM 171 O TYR B 110 -4.502 45.071 64.697 1.00 39.97 ATOM 172 CB TYR B 110 -4.505 46.634 61.937 1.00 37.51 ATOM 173 CG TYR B 110 -4.415 46.563 60.434 1.00 33.89 ATOM 174 CD1 TYR B 110 -3.844 47.598 59.706 1.00 32.93 ATOM 175 CD2 TYR B 110 -4.911 45.472 59.740 1.00 34.73 ATOM 176 CE1 TYR B 110 -3.763 47.543 58.328 1.00 31.59 ATOM 177 CE2 TYR B 110 -4.836 45.407 58.360 1.00 37.71 ATOM 178 CZ TYR B 110 -4.260 46.449 57.661 1.00 37.16 ATOM 179 OH TYR B 110 -4.176 46.394 56.292 1.00 39.71 ATOM 180 N HIS B 111 -3.218 46.917 64.842 1.00 36.71 ATOM 181 CA HIS B 111 -3.710 47.304 66.157 1.00 40.44 ATOM 182 C HIS B 111 -5.160 47.706 65.970 1.00 37.38 ATOM 183 O HIS B 111 -5.541 48.160 64.892 1.00 36.96 ATOM 184 CB HIS B 111 -2.940 48.512 66.700 1.00 43.64 ATOM 185 CG HIS B 111 -1.541 48.204 67.135 1.00 46.96 ATOM 186 ND1 HIS B 111 -0.434 48.675 66.463 1.00 44.02 ATOM 187 CD2 HIS B 111 -1.069 47.487 68.182 1.00 46.20 ATOM 188 CE1 HIS B 111 0.661 48.256 67.074 1.00 44.06 ATOM 189 NE2 HIS B 111 0.303 47.534 68.120 1.00 45.57 ATOM 190 N LEU B 112 -5.968 47.545 67.010 1.00 36.82 ATOM 191 CA LEU B 112 -7.373 47.922 66.943 1.00 42.00 ATOM 192 C LEU B 112 -7.535 49.361 66.465 1.00 43.10 ATOM 193 O LEU B 112 -8.322 49.641 65.562 1.00 40.62 ATOM 194 CB LEU B 112 -8.036 47.760 68.310 1.00 43.76 ATOM 195 CG LEU B 112 -8.711 46.419 68.591 1.00 46.00 ATOM 196 CD1 LEU B 112 -7.920 45.281 67.975 1.00 48.02 ATOM 197 CD2 LEU B 112 -8.855 46.228 70.090 1.00 43.02 ATOM 198 N HIS B 113 -6.782 50.269 67.075 1.00 39.92 ATOM 199 CA HIS B 113 -6.905 51.690 66.771 1.00 42.01 ATOM 200 C HIS B 113 -6.325 52.028 65.403 1.00 38.11 ATOM 201 O HIS B 113 -6.621 53.078 64.840 1.00 36.91 ATOM 202 CB HIS B 113 -6.228 52.527 67.858 1.00 45.46 ATOM 203 CG HIS B 113 -4.793 52.170 68.086 1.00 51.35 ATOM 204 ND1 HIS B 113 -4.407 51.075 68.831 1.00 56.90 ATOM 205 CD2 HIS B 113 -3.648 52.761 67.667 1.00 51.30 ATOM 206 CE1 HIS B 113 -3.088 51.010 68.865 1.00 55.67 ATOM 207 NE2 HIS B 113 -2.603 52.020 68.165 1.00 52.72 ATOM 208 N CYS B 114 -5.502 51.131 64.867 1.00 36.74 ATOM 209 CA CYS B 114 -4.899 51.342 63.552 1.00 38.13 ATOM 210 C CYS B 114 -5.774 50.784 62.431 1.00 37.77 ATOM 211 O CYS B 114 -5.544 51.061 61.254 1.00 35.71 ATOM 212 CB CYS B 114 -3.490 50.738 63.501 1.00 35.27 ATOM 213 SG CYS B 114 -2.330 51.570 64.638 1.00 41.11 ATOM 214 ZN ZN B 865 -0.540 50.017 64.604 0.80 45.70 TER