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 A 24 149 UNP P53776 LHX4_MOUSE 24 149 DBREF 3MMK A 261 271 PDB 3MMK 3MMK 261 271 DBREF 3MMK A 272 301 UNP Q9CXV0 ISL2_MOUSE 272 301 SEQRES 1 A 31 LYS CYS ALA ASP CYS GLN MET GLN LEU ALA ASP ARG CYS SEQRES 2 A 31 PHE SER ARG ALA GLY SER VAL TYR CYS LYS GLU ASP PHE SEQRES 3 A 31 PHE LYS ARG PHE GLY ATOM 1 N LYS A 56 35.689 80.086 32.771 1.00 61.78 ATOM 2 CA LYS A 56 35.607 80.237 31.326 1.00 61.77 ATOM 3 C LYS A 56 35.806 78.893 30.631 1.00 62.20 ATOM 4 O LYS A 56 36.549 78.039 31.115 1.00 62.82 ATOM 5 CB LYS A 56 36.642 81.247 30.831 1.00 61.93 ATOM 6 CG LYS A 56 36.499 82.637 31.436 1.00 62.13 ATOM 7 N CYS A 57 35.136 78.713 29.497 1.00 62.44 ATOM 8 CA CYS A 57 35.245 77.478 28.729 1.00 63.00 ATOM 9 C CYS A 57 36.672 77.243 28.251 1.00 67.27 ATOM 10 O CYS A 57 37.310 78.146 27.711 1.00 69.94 ATOM 11 CB CYS A 57 34.298 77.504 27.527 1.00 60.96 ATOM 12 SG CYS A 57 34.449 76.056 26.452 1.00 58.05 ATOM 13 N ALA A 58 37.163 76.025 28.447 1.00 68.40 ATOM 14 CA ALA A 58 38.515 75.666 28.033 1.00 71.71 ATOM 15 C ALA A 58 38.684 75.779 26.521 1.00 76.33 ATOM 16 O ALA A 58 39.781 76.045 26.031 1.00 75.69 ATOM 17 CB ALA A 58 38.852 74.259 28.497 1.00 72.41 ATOM 18 N ASP A 59 37.594 75.574 25.788 1.00 80.82 ATOM 19 CA ASP A 59 37.638 75.592 24.330 1.00 84.85 ATOM 20 C ASP A 59 37.557 77.002 23.752 1.00 85.56 ATOM 21 O ASP A 59 38.504 77.474 23.124 1.00 87.65 ATOM 22 CB ASP A 59 36.527 74.718 23.741 1.00 89.41 ATOM 23 CG ASP A 59 36.848 73.236 23.813 1.00 96.01 ATOM 24 OD1 ASP A 59 38.005 72.893 24.135 1.00 98.63 ATOM 25 OD2 ASP A 59 35.946 72.413 23.544 1.00 96.93 ATOM 26 N CYS A 60 36.429 77.670 23.967 1.00 83.22 ATOM 27 CA CYS A 60 36.177 78.963 23.336 1.00 82.55 ATOM 28 C CYS A 60 36.468 80.153 24.251 1.00 82.97 ATOM 29 O CYS A 60 36.107 81.288 23.933 1.00 81.28 ATOM 30 CB CYS A 60 34.732 79.039 22.846 1.00 82.45 ATOM 31 SG CYS A 60 33.530 79.297 24.166 1.00 66.12 ATOM 32 N GLN A 61 37.114 79.890 25.382 1.00 81.63 ATOM 33 CA GLN A 61 37.464 80.942 26.334 1.00 77.04 ATOM 34 C GLN A 61 36.314 81.922 26.550 1.00 78.03 ATOM 35 O GLN A 61 36.497 83.134 26.456 1.00 82.54 ATOM 36 CB GLN A 61 38.715 81.692 25.870 1.00 73.02 ATOM 37 N MET A 62 35.130 81.393 26.834 1.00 74.71 ATOM 38 CA MET A 62 33.963 82.229 27.087 1.00 73.34 ATOM 39 C MET A 62 33.529 82.131 28.543 1.00 74.22 ATOM 40 O MET A 62 33.512 81.045 29.123 1.00 75.60 ATOM 41 CB MET A 62 32.805 81.833 26.169 1.00 71.66 ATOM 42 N GLN A 63 33.180 83.271 29.129 1.00 71.98 ATOM 43 CA GLN A 63 32.729 83.310 30.514 1.00 69.69 ATOM 44 C GLN A 63 31.498 82.432 30.698 1.00 65.51 ATOM 45 O GLN A 63 30.602 82.421 29.854 1.00 63.47 ATOM 46 N LEU A 64 31.461 81.695 31.804 1.00 61.80 ATOM 47 CA LEU A 64 30.338 80.813 32.099 1.00 63.39 ATOM 48 C LEU A 64 29.430 81.427 33.157 1.00 64.79 ATOM 49 O LEU A 64 29.693 81.320 34.353 1.00 64.92 ATOM 50 CB LEU A 64 30.838 79.441 32.567 1.00 61.79 ATOM 51 CG LEU A 64 31.746 78.672 31.602 1.00 62.13 ATOM 52 CD1 LEU A 64 32.190 77.355 32.218 1.00 64.42 ATOM 53 CD2 LEU A 64 31.049 78.433 30.269 1.00 58.96 ATOM 54 N ALA A 65 28.358 82.070 32.709 1.00 71.05 ATOM 55 CA ALA A 65 27.429 82.728 33.620 1.00 75.94 ATOM 56 C ALA A 65 26.199 81.865 33.858 1.00 79.80 ATOM 57 O ALA A 65 25.664 81.823 34.967 1.00 80.88 ATOM 58 N ASP A 66 25.759 81.174 32.810 1.00 81.61 ATOM 59 CA ASP A 66 24.587 80.312 32.893 1.00 81.98 ATOM 60 C ASP A 66 24.882 79.118 33.790 1.00 78.71 ATOM 61 O ASP A 66 24.710 79.186 35.007 1.00 76.96 ATOM 62 CB ASP A 66 24.168 79.837 31.499 1.00 87.54 ATOM 63 CG ASP A 66 23.890 80.989 30.548 1.00 89.60 ATOM 64 OD1 ASP A 66 24.680 81.957 30.530 1.00 89.77 ATOM 65 OD2 ASP A 66 22.885 80.922 29.811 1.00 90.53 ATOM 66 N ARG A 67 25.324 78.020 33.187 1.00 75.26 ATOM 67 CA ARG A 67 25.781 76.879 33.968 1.00 71.97 ATOM 68 C ARG A 67 27.069 76.258 33.434 1.00 67.82 ATOM 69 O ARG A 67 27.524 76.576 32.337 1.00 65.75 ATOM 70 CB ARG A 67 24.677 75.830 34.156 1.00 70.48 ATOM 71 CG ARG A 67 23.716 75.654 33.004 1.00 68.69 ATOM 72 CD ARG A 67 22.369 75.189 33.544 1.00 68.63 ATOM 73 NE ARG A 67 22.521 74.184 34.596 1.00 67.40 ATOM 74 CZ ARG A 67 21.640 73.977 35.572 1.00 66.03 ATOM 75 NH1 ARG A 67 20.539 74.712 35.644 1.00 63.95 ATOM 76 NH2 ARG A 67 21.861 73.039 36.484 1.00 65.96 ATOM 77 N CYS A 68 27.647 75.371 34.234 1.00 64.56 ATOM 78 CA CYS A 68 28.996 74.882 34.002 1.00 61.17 ATOM 79 C CYS A 68 29.018 73.386 33.689 1.00 62.13 ATOM 80 O CYS A 68 28.369 72.588 34.367 1.00 58.43 ATOM 81 CB CYS A 68 29.854 75.185 35.235 1.00 59.68 ATOM 82 SG CYS A 68 31.509 74.475 35.238 1.00 63.82 ATOM 83 N PHE A 69 29.762 73.013 32.653 1.00 61.09 ATOM 84 CA PHE A 69 29.956 71.609 32.317 1.00 61.97 ATOM 85 C PHE A 69 31.412 71.220 32.549 1.00 65.67 ATOM 86 O PHE A 69 32.302 71.653 31.819 1.00 68.66 ATOM 87 CB PHE A 69 29.558 71.342 30.863 1.00 60.73 ATOM 88 CG PHE A 69 28.090 71.534 30.592 1.00 63.24 ATOM 89 CD1 PHE A 69 27.252 70.441 30.434 1.00 66.84 ATOM 90 CD2 PHE A 69 27.548 72.806 30.501 1.00 62.95 ATOM 91 CE1 PHE A 69 25.902 70.613 30.186 1.00 64.89 ATOM 92 CE2 PHE A 69 26.200 72.986 30.256 1.00 64.25 ATOM 93 CZ PHE A 69 25.375 71.889 30.097 1.00 63.98 ATOM 94 N SER A 70 31.652 70.409 33.572 1.00 68.02 ATOM 95 CA SER A 70 33.012 70.009 33.918 1.00 71.87 ATOM 96 C SER A 70 33.275 68.532 33.640 1.00 75.63 ATOM 97 O SER A 70 32.495 67.663 34.031 1.00 78.49 ATOM 98 CB SER A 70 33.309 70.327 35.385 1.00 72.81 ATOM 99 OG SER A 70 32.392 69.672 36.240 1.00 71.67 ATOM 100 N ARG A 71 34.380 68.261 32.955 1.00 75.38 ATOM 101 CA ARG A 71 34.825 66.896 32.702 1.00 72.25 ATOM 102 C ARG A 71 36.320 66.803 32.973 1.00 70.46 ATOM 103 O ARG A 71 37.106 67.576 32.421 1.00 69.72 ATOM 104 CB ARG A 71 34.521 66.482 31.262 1.00 69.70 ATOM 105 N ALA A 72 36.703 65.863 33.831 1.00 67.06 ATOM 106 CA ALA A 72 38.097 65.696 34.230 1.00 69.22 ATOM 107 C ALA A 72 38.568 66.845 35.122 1.00 70.40 ATOM 108 O ALA A 72 38.141 66.966 36.272 1.00 69.76 ATOM 109 CB ALA A 72 38.999 65.555 33.007 1.00 67.76 ATOM 110 N GLY A 73 39.447 67.688 34.590 1.00 68.99 ATOM 111 CA GLY A 73 39.978 68.800 35.354 1.00 67.58 ATOM 112 C GLY A 73 39.708 70.151 34.724 1.00 68.24 ATOM 113 O GLY A 73 40.324 71.150 35.095 1.00 67.87 ATOM 114 N SER A 74 38.778 70.188 33.775 1.00 68.70 ATOM 115 CA SER A 74 38.496 71.416 33.041 1.00 67.35 ATOM 116 C SER A 74 37.001 71.718 32.938 1.00 65.69 ATOM 117 O SER A 74 36.161 70.855 33.197 1.00 65.82 ATOM 118 CB SER A 74 39.125 71.350 31.649 1.00 66.35 ATOM 119 OG SER A 74 40.533 71.213 31.743 1.00 64.42 ATOM 120 N VAL A 75 36.678 72.949 32.552 1.00 59.25 ATOM 121 CA VAL A 75 35.288 73.379 32.449 1.00 58.27 ATOM 122 C VAL A 75 34.925 73.813 31.028 1.00 61.34 ATOM 123 O VAL A 75 35.742 74.394 30.313 1.00 61.41 ATOM 124 CB VAL A 75 34.978 74.515 33.445 1.00 56.51 ATOM 125 CG1 VAL A 75 35.074 74.000 34.872 1.00 57.86 ATOM 126 CG2 VAL A 75 35.934 75.680 33.239 1.00 54.48 ATOM 127 N TYR A 76 33.692 73.524 30.623 1.00 61.04 ATOM 128 CA TYR A 76 33.247 73.811 29.267 1.00 58.56 ATOM 129 C TYR A 76 31.839 74.399 29.241 1.00 54.33 ATOM 130 O TYR A 76 31.041 74.168 30.149 1.00 56.74 ATOM 131 CB TYR A 76 33.266 72.534 28.428 1.00 58.78 ATOM 132 CG TYR A 76 34.592 71.804 28.410 1.00 60.26 ATOM 133 CD1 TYR A 76 35.478 71.962 27.353 1.00 59.11 ATOM 134 CD2 TYR A 76 34.951 70.945 29.441 1.00 60.35 ATOM 135 CE1 TYR A 76 36.687 71.293 27.324 1.00 56.94 ATOM 136 CE2 TYR A 76 36.159 70.271 29.420 1.00 62.81 ATOM 137 CZ TYR A 76 37.023 70.450 28.357 1.00 62.43 ATOM 138 OH TYR A 76 38.226 69.784 28.322 1.00 66.02 ATOM 139 N CYS A 77 31.536 75.157 28.195 1.00 49.71 ATOM 140 CA CYS A 77 30.171 75.612 27.967 1.00 55.14 ATOM 141 C CYS A 77 29.351 74.453 27.397 1.00 60.83 ATOM 142 O CYS A 77 29.910 73.433 26.989 1.00 56.59 ATOM 143 CB CYS A 77 30.153 76.800 27.008 1.00 57.08 ATOM 144 SG CYS A 77 30.401 76.353 25.278 1.00 64.32 ATOM 145 N LYS A 78 28.031 74.606 27.372 1.00 67.07 ATOM 146 CA LYS A 78 27.142 73.527 26.939 1.00 70.15 ATOM 147 C LYS A 78 27.426 73.041 25.518 1.00 70.37 ATOM 148 O LYS A 78 27.396 71.842 25.249 1.00 69.57 ATOM 149 CB LYS A 78 25.678 73.955 27.060 1.00 70.77 ATOM 150 N GLU A 79 27.698 73.974 24.613 1.00 75.42 ATOM 151 CA GLU A 79 27.932 73.636 23.212 1.00 77.63 ATOM 152 C GLU A 79 29.242 72.876 23.020 1.00 76.68 ATOM 153 O GLU A 79 29.261 71.799 22.426 1.00 76.14 ATOM 154 CB GLU A 79 27.920 74.899 22.346 1.00 77.68 ATOM 155 N ASP A 80 30.333 73.444 23.526 1.00 76.27 ATOM 156 CA ASP A 80 31.657 72.840 23.384 1.00 76.13 ATOM 157 C ASP A 80 31.796 71.526 24.149 1.00 75.80 ATOM 158 O ASP A 80 32.671 70.717 23.843 1.00 77.53 ATOM 159 CB ASP A 80 32.750 73.818 23.824 1.00 75.69 ATOM 160 CG ASP A 80 33.212 74.724 22.699 1.00 77.87 ATOM 161 OD1 ASP A 80 33.032 74.353 21.520 1.00 78.02 ATOM 162 OD2 ASP A 80 33.765 75.805 22.992 1.00 79.94 ATOM 163 N PHE A 81 30.939 71.321 25.144 1.00 74.28 ATOM 164 CA PHE A 81 30.967 70.091 25.933 1.00 70.37 ATOM 165 C PHE A 81 30.326 68.937 25.172 1.00 72.13 ATOM 166 O PHE A 81 30.888 67.844 25.094 1.00 76.38 ATOM 167 CB PHE A 81 30.258 70.292 27.274 1.00 64.53 ATOM 168 CG PHE A 81 30.183 69.048 28.116 1.00 66.14 ATOM 169 CD1 PHE A 81 31.250 68.669 28.913 1.00 70.22 ATOM 170 CD2 PHE A 81 29.043 68.263 28.116 1.00 69.57 ATOM 171 CE1 PHE A 81 31.184 67.527 29.690 1.00 73.72 ATOM 172 CE2 PHE A 81 28.972 67.117 28.890 1.00 72.92 ATOM 173 CZ PHE A 81 30.044 66.750 29.678 1.00 73.87 ATOM 174 N PHE A 82 29.147 69.185 24.613 1.00 70.09 ATOM 175 CA PHE A 82 28.430 68.160 23.865 1.00 71.80 ATOM 176 C PHE A 82 29.245 67.678 22.671 1.00 74.24 ATOM 177 O PHE A 82 29.197 66.505 22.310 1.00 77.00 ATOM 178 CB PHE A 82 27.071 68.686 23.400 1.00 69.38 ATOM 179 CG PHE A 82 26.162 69.091 24.523 1.00 68.93 ATOM 180 N LYS A 83 30.001 68.589 22.066 1.00 75.29 ATOM 181 CA LYS A 83 30.789 68.263 20.883 1.00 76.40 ATOM 182 C LYS A 83 32.129 67.621 21.232 1.00 78.43 ATOM 183 O LYS A 83 32.922 67.305 20.345 1.00 82.03 ATOM 184 CB LYS A 83 31.017 69.515 20.033 1.00 74.73 ATOM 185 N ARG A 84 32.378 67.421 22.522 1.00 74.53 ATOM 186 CA ARG A 84 33.664 66.897 22.968 1.00 74.23 ATOM 187 C ARG A 84 33.537 65.562 23.692 1.00 74.13 ATOM 188 O ARG A 84 34.337 64.654 23.478 1.00 74.88 ATOM 189 CB ARG A 84 34.369 67.912 23.874 1.00 75.67 ATOM 190 N PHE A 85 32.533 65.447 24.553 1.00 73.82 ATOM 191 CA PHE A 85 32.374 64.248 25.364 1.00 76.97 ATOM 192 C PHE A 85 31.087 63.502 25.046 1.00 78.49 ATOM 193 O PHE A 85 30.020 64.103 24.916 1.00 76.13 ATOM 194 CB PHE A 85 32.427 64.600 26.849 1.00 80.78 ATOM 195 CG PHE A 85 33.702 65.270 27.264 1.00 85.70 ATOM 196 CD1 PHE A 85 34.812 64.519 27.613 1.00 89.14 ATOM 197 CD2 PHE A 85 33.793 66.652 27.305 1.00 87.24 ATOM 198 CE1 PHE A 85 35.989 65.134 27.996 1.00 91.28 ATOM 199 CE2 PHE A 85 34.966 67.272 27.686 1.00 89.18 ATOM 200 CZ PHE A 85 36.067 66.511 28.033 1.00 90.91 ATOM 201 N GLY A 86 31.200 62.185 24.921 1.00 83.23 ATOM 202 CA GLY A 86 30.052 61.342 24.649 1.00 87.49 ATOM 203 C GLY A 86 29.400 60.873 25.933 1.00 89.00 ATOM 204 O GLY A 86 30.060 60.307 26.804 1.00 91.54 ATOM 205 ZN ZN A 870 32.730 76.991 24.881 0.90 74.66 TER