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 30 GLN ILE PRO GLN CYS ALA GLY CYS ASN GLN HIS ILE LEU SEQRES 2 A 30 ASP LYS PHE ILE LEU LYS VAL LEU ASP ARG HIS TRP HIS SEQRES 3 A 30 SER SER CYS LEU ATOM 1 N GLN A 26 34.398 82.932 55.720 1.00 73.54 ATOM 2 CA GLN A 26 35.770 82.734 55.268 1.00 69.84 ATOM 3 C GLN A 26 35.916 83.041 53.782 1.00 66.32 ATOM 4 O GLN A 26 35.039 82.718 52.982 1.00 68.64 ATOM 5 CB GLN A 26 36.228 81.303 55.553 1.00 69.54 ATOM 6 N ILE A 27 37.028 83.670 53.421 1.00 59.42 ATOM 7 CA ILE A 27 37.314 83.975 52.027 1.00 52.18 ATOM 8 C ILE A 27 37.751 82.710 51.299 1.00 57.66 ATOM 9 O ILE A 27 38.821 82.165 51.575 1.00 59.80 ATOM 10 CB ILE A 27 38.409 85.044 51.898 1.00 51.30 ATOM 11 CG1 ILE A 27 37.905 86.396 52.419 1.00 53.14 ATOM 12 CG2 ILE A 27 38.861 85.165 50.457 1.00 51.36 ATOM 13 CD1 ILE A 27 36.870 87.063 51.527 1.00 51.38 ATOM 14 N PRO A 28 36.915 82.233 50.366 1.00 51.22 ATOM 15 CA PRO A 28 37.199 80.988 49.647 1.00 51.01 ATOM 16 C PRO A 28 38.399 81.126 48.723 1.00 51.43 ATOM 17 O PRO A 28 38.735 82.231 48.303 1.00 53.87 ATOM 18 CB PRO A 28 35.934 80.765 48.804 1.00 52.83 ATOM 19 CG PRO A 28 34.894 81.681 49.379 1.00 53.30 ATOM 20 CD PRO A 28 35.645 82.842 49.945 1.00 48.63 ATOM 21 N GLN A 29 39.044 80.006 48.424 1.00 53.66 ATOM 22 CA GLN A 29 40.051 79.965 47.377 1.00 49.64 ATOM 23 C GLN A 29 39.408 79.427 46.109 1.00 49.86 ATOM 24 O GLN A 29 38.628 78.476 46.149 1.00 48.01 ATOM 25 CB GLN A 29 41.229 79.092 47.791 1.00 49.03 ATOM 26 CG GLN A 29 41.878 79.549 49.078 1.00 51.93 ATOM 27 CD GLN A 29 42.965 78.611 49.546 1.00 57.66 ATOM 28 OE1 GLN A 29 42.947 78.148 50.685 1.00 64.16 ATOM 29 NE2 GLN A 29 43.919 78.320 48.668 1.00 55.63 ATOM 30 N CYS A 30 39.735 80.052 44.987 1.00 47.00 ATOM 31 CA CYS A 30 39.139 79.709 43.712 1.00 48.54 ATOM 32 C CYS A 30 39.399 78.246 43.336 1.00 51.27 ATOM 33 O CYS A 30 40.531 77.774 43.400 1.00 52.06 ATOM 34 CB CYS A 30 39.675 80.650 42.634 1.00 47.12 ATOM 35 SG CYS A 30 38.878 80.469 41.038 1.00 45.90 ATOM 36 N ALA A 31 38.346 77.533 42.948 1.00 49.19 ATOM 37 CA ALA A 31 38.480 76.143 42.517 1.00 49.49 ATOM 38 C ALA A 31 39.391 76.048 41.299 1.00 52.21 ATOM 39 O ALA A 31 40.073 75.040 41.092 1.00 46.89 ATOM 40 CB ALA A 31 37.109 75.538 42.208 1.00 44.46 ATOM 41 N GLY A 32 39.404 77.112 40.500 1.00 50.56 ATOM 42 CA GLY A 32 40.223 77.162 39.305 1.00 52.77 ATOM 43 C GLY A 32 41.682 77.488 39.563 1.00 55.93 ATOM 44 O GLY A 32 42.563 76.685 39.251 1.00 53.57 ATOM 45 N CYS A 33 41.941 78.659 40.142 1.00 52.20 ATOM 46 CA CYS A 33 43.312 79.148 40.306 1.00 48.77 ATOM 47 C CYS A 33 43.860 78.949 41.720 1.00 52.02 ATOM 48 O CYS A 33 45.032 79.224 41.986 1.00 50.44 ATOM 49 CB CYS A 33 43.385 80.630 39.937 1.00 44.25 ATOM 50 SG CYS A 33 42.660 81.723 41.190 1.00 56.63 ATOM 51 N ASN A 34 42.998 78.488 42.621 1.00 56.57 ATOM 52 CA ASN A 34 43.364 78.229 44.015 1.00 54.20 ATOM 53 C ASN A 34 43.776 79.468 44.813 1.00 52.14 ATOM 54 O ASN A 34 44.206 79.359 45.966 1.00 49.32 ATOM 55 CB ASN A 34 44.446 77.149 44.109 1.00 57.37 ATOM 56 CG ASN A 34 44.488 76.492 45.475 1.00 58.98 ATOM 57 OD1 ASN A 34 43.457 76.340 46.131 1.00 55.35 ATOM 58 ND2 ASN A 34 45.682 76.102 45.913 1.00 61.32 ATOM 59 N GLN A 14 43.643 80.643 44.206 1.00 52.33 ATOM 60 CA GLN A 14 43.944 81.890 44.905 1.00 51.65 ATOM 61 C GLN A 14 42.731 82.362 45.692 1.00 47.58 ATOM 62 O GLN A 14 41.599 81.986 45.386 1.00 47.50 ATOM 63 CB GLN A 14 44.381 82.978 43.923 1.00 57.03 ATOM 64 CG GLN A 14 45.643 82.646 43.145 1.00 65.49 ATOM 65 CD GLN A 14 46.040 83.752 42.185 1.00 72.61 ATOM 66 OE1 GLN A 14 45.526 84.869 42.260 1.00 77.39 ATOM 67 NE2 GLN A 14 46.962 83.446 41.277 1.00 71.73 ATOM 68 N HIS A 36 42.969 83.185 46.707 1.00 47.20 ATOM 69 CA HIS A 36 41.880 83.745 47.495 1.00 48.94 ATOM 70 C HIS A 36 41.063 84.728 46.663 1.00 47.33 ATOM 71 O HIS A 36 41.613 85.575 45.957 1.00 42.77 ATOM 72 CB HIS A 36 42.412 84.412 48.766 1.00 53.81 ATOM 73 CG HIS A 36 42.824 83.439 49.826 1.00 60.64 ATOM 74 ND1 HIS A 36 44.143 83.139 50.090 1.00 59.99 ATOM 75 CD2 HIS A 36 42.088 82.683 50.676 1.00 62.28 ATOM 76 CE1 HIS A 36 44.201 82.247 51.063 1.00 61.41 ATOM 77 NE2 HIS A 36 42.968 81.954 51.436 1.00 60.53 ATOM 78 N ILE A 37 39.744 84.599 46.748 1.00 45.45 ATOM 79 CA ILE A 37 38.843 85.407 45.940 1.00 45.66 ATOM 80 C ILE A 37 38.427 86.670 46.685 1.00 45.05 ATOM 81 O ILE A 37 37.660 86.614 47.646 1.00 42.86 ATOM 82 CB ILE A 37 37.595 84.606 45.520 1.00 41.44 ATOM 83 CG1 ILE A 37 38.004 83.373 44.711 1.00 42.87 ATOM 84 CG2 ILE A 37 36.648 85.480 44.714 1.00 43.74 ATOM 85 CD1 ILE A 37 36.841 82.452 44.361 1.00 44.60 ATOM 86 N LEU A 38 38.949 87.808 46.238 1.00 44.21 ATOM 87 CA LEU A 38 38.651 89.084 46.875 1.00 49.81 ATOM 88 C LEU A 38 37.555 89.856 46.136 1.00 51.49 ATOM 89 O LEU A 38 37.176 90.953 46.547 1.00 54.05 ATOM 90 CB LEU A 38 39.919 89.933 46.992 1.00 54.47 ATOM 91 CG LEU A 38 41.046 89.347 47.848 1.00 51.86 ATOM 92 CD1 LEU A 38 42.266 90.257 47.821 1.00 52.14 ATOM 93 CD2 LEU A 38 40.578 89.114 49.280 1.00 46.05 ATOM 94 N ASP A 39 37.054 89.277 45.047 1.00 46.24 ATOM 95 CA ASP A 39 35.950 89.866 44.294 1.00 45.24 ATOM 96 C ASP A 39 34.712 89.955 45.170 1.00 45.92 ATOM 97 O ASP A 39 34.416 89.036 45.933 1.00 49.02 ATOM 98 CB ASP A 39 35.621 89.021 43.056 1.00 50.27 ATOM 99 CG ASP A 39 36.694 89.099 41.985 1.00 56.23 ATOM 100 OD1 ASP A 39 36.648 88.278 41.045 1.00 60.94 ATOM 101 OD2 ASP A 39 37.577 89.977 42.078 1.00 57.92 ATOM 102 N LYS A 40 33.985 91.059 45.055 1.00 44.76 ATOM 103 CA LYS A 40 32.745 91.228 45.797 1.00 47.64 ATOM 104 C LYS A 40 31.765 90.113 45.440 1.00 49.32 ATOM 105 O LYS A 40 31.102 89.547 46.313 1.00 53.49 ATOM 106 CB LYS A 40 32.136 92.601 45.503 1.00 52.73 ATOM 107 CG LYS A 40 30.848 92.889 46.252 1.00 55.15 ATOM 108 CD LYS A 40 31.068 92.929 47.754 1.00 55.22 ATOM 109 CE LYS A 40 29.897 93.611 48.452 1.00 57.11 ATOM 110 NZ LYS A 40 29.995 93.514 49.933 1.00 56.70 ATOM 111 N PHE A 41 31.683 89.795 44.152 1.00 46.70 ATOM 112 CA PHE A 41 30.850 88.691 43.683 1.00 45.38 ATOM 113 C PHE A 41 31.663 87.403 43.641 1.00 45.82 ATOM 114 O PHE A 41 32.710 87.346 42.995 1.00 43.71 ATOM 115 CB PHE A 41 30.306 88.986 42.285 1.00 46.10 ATOM 116 CG PHE A 41 29.028 89.772 42.276 1.00 44.98 ATOM 117 CD1 PHE A 41 28.015 89.451 41.390 1.00 41.02 ATOM 118 CD2 PHE A 41 28.839 90.831 43.147 1.00 46.71 ATOM 119 CE1 PHE A 41 26.838 90.174 41.368 1.00 44.61 ATOM 120 CE2 PHE A 41 27.662 91.557 43.132 1.00 46.51 ATOM 121 CZ PHE A 41 26.660 91.226 42.241 1.00 41.98 ATOM 122 N ILE A 42 31.173 86.375 44.328 1.00 47.67 ATOM 123 CA ILE A 42 31.832 85.073 44.361 1.00 49.49 ATOM 124 C ILE A 42 30.975 84.002 43.687 1.00 50.04 ATOM 125 O ILE A 42 29.919 83.629 44.197 1.00 54.31 ATOM 126 CB ILE A 42 32.106 84.625 45.806 1.00 51.29 ATOM 127 CG1 ILE A 42 33.047 85.609 46.503 1.00 54.15 ATOM 128 CG2 ILE A 42 32.681 83.218 45.823 1.00 52.38 ATOM 129 CD1 ILE A 42 33.304 85.285 47.966 1.00 53.07 ATOM 130 N LEU A 43 31.430 83.500 42.543 1.00 47.20 ATOM 131 CA LEU A 43 30.690 82.461 41.833 1.00 50.13 ATOM 132 C LEU A 43 30.824 81.102 42.511 1.00 55.03 ATOM 133 O LEU A 43 31.915 80.695 42.903 1.00 58.22 ATOM 134 CB LEU A 43 31.132 82.376 40.371 1.00 48.90 ATOM 135 CG LEU A 43 30.362 83.290 39.416 1.00 52.36 ATOM 136 CD1 LEU A 43 30.455 84.740 39.864 1.00 55.72 ATOM 137 CD2 LEU A 43 30.877 83.128 37.998 1.00 53.10 ATOM 138 N LYS A 44 29.702 80.407 42.655 1.00 53.08 ATOM 139 CA LYS A 44 29.695 79.105 43.301 1.00 55.64 ATOM 140 C LYS A 44 29.102 78.040 42.382 1.00 61.82 ATOM 141 O LYS A 44 27.941 78.125 41.975 1.00 61.81 ATOM 142 CB LYS A 44 28.924 79.158 44.621 1.00 55.57 ATOM 143 CG LYS A 44 28.814 77.812 45.322 1.00 61.88 ATOM 144 CD LYS A 44 28.154 77.943 46.684 1.00 65.91 ATOM 145 CE LYS A 44 28.315 76.667 47.496 1.00 68.77 ATOM 146 NZ LYS A 44 27.815 76.825 48.890 1.00 69.31 ATOM 147 N VAL A 45 29.917 77.045 42.051 1.00 57.44 ATOM 148 CA VAL A 45 29.477 75.929 41.230 1.00 58.35 ATOM 149 C VAL A 45 29.468 74.654 42.059 1.00 66.05 ATOM 150 O VAL A 45 30.519 74.066 42.317 1.00 68.21 ATOM 151 CB VAL A 45 30.396 75.725 40.019 1.00 53.53 ATOM 152 CG1 VAL A 45 29.976 74.487 39.240 1.00 53.70 ATOM 153 CG2 VAL A 45 30.380 76.961 39.129 1.00 51.03 ATOM 154 N LEU A 46 28.278 74.242 42.485 1.00 69.78 ATOM 155 CA LEU A 46 28.108 73.013 43.255 1.00 73.82 ATOM 156 C LEU A 46 29.159 72.822 44.348 1.00 75.61 ATOM 157 O LEU A 46 30.047 71.976 44.226 1.00 78.78 ATOM 158 N ASP A 47 29.054 73.614 45.411 1.00 71.30 ATOM 159 CA ASP A 47 29.910 73.453 46.585 1.00 72.53 ATOM 160 C ASP A 47 31.334 73.986 46.395 1.00 74.98 ATOM 161 O ASP A 47 32.137 73.963 47.328 1.00 74.69 ATOM 162 CB ASP A 47 29.945 71.987 47.034 1.00 71.53 ATOM 163 N ARG A 48 31.644 74.464 45.193 1.00 73.73 ATOM 164 CA ARG A 48 32.958 75.048 44.924 1.00 68.24 ATOM 165 C ARG A 48 32.837 76.523 44.548 1.00 60.85 ATOM 166 O ARG A 48 31.813 76.952 44.016 1.00 56.53 ATOM 167 CB ARG A 48 33.673 74.286 43.809 1.00 64.88 ATOM 168 CG ARG A 48 33.591 72.779 43.936 1.00 66.04 ATOM 169 CD ARG A 48 34.525 72.099 42.950 1.00 61.90 ATOM 170 NE ARG A 48 35.925 72.279 43.326 1.00 58.39 ATOM 171 CZ ARG A 48 36.952 71.803 42.629 1.00 59.21 ATOM 172 NH1 ARG A 48 36.740 71.115 41.512 1.00 58.69 ATOM 173 NH2 ARG A 48 38.194 72.013 43.048 1.00 57.69 ATOM 174 N HIS A 49 33.891 77.290 44.816 1.00 55.62 ATOM 175 CA HIS A 49 33.878 78.730 44.564 1.00 54.29 ATOM 176 C HIS A 49 34.848 79.148 43.459 1.00 53.83 ATOM 177 O HIS A 49 35.900 78.540 43.280 1.00 51.54 ATOM 178 CB HIS A 49 34.164 79.493 45.857 1.00 53.20 ATOM 179 CG HIS A 49 33.154 79.244 46.933 1.00 56.38 ATOM 180 ND1 HIS A 49 33.313 78.265 47.890 1.00 60.35 ATOM 181 CD2 HIS A 49 31.963 79.835 47.192 1.00 58.85 ATOM 182 CE1 HIS A 49 32.268 78.271 48.699 1.00 62.07 ATOM 183 NE2 HIS A 49 31.435 79.214 48.298 1.00 60.46 ATOM 184 N TRP A 50 34.483 80.200 42.728 1.00 54.60 ATOM 185 CA TRP A 50 35.222 80.618 41.541 1.00 52.28 ATOM 186 C TRP A 50 35.311 82.129 41.399 1.00 52.04 ATOM 187 O TRP A 50 34.369 82.852 41.732 1.00 50.22 ATOM 188 CB TRP A 50 34.528 80.096 40.282 1.00 49.98 ATOM 189 CG TRP A 50 34.684 78.645 40.028 1.00 51.79 ATOM 190 CD1 TRP A 50 33.962 77.630 40.587 1.00 50.92 ATOM 191 CD2 TRP A 50 35.607 78.032 39.124 1.00 51.21 ATOM 192 NE1 TRP A 50 34.388 76.425 40.096 1.00 52.72 ATOM 193 CE2 TRP A 50 35.397 76.643 39.193 1.00 53.66 ATOM 194 CE3 TRP A 50 36.596 78.524 38.267 1.00 52.50 ATOM 195 CZ2 TRP A 50 36.140 75.736 38.439 1.00 56.04 ATOM 196 CZ3 TRP A 50 37.331 77.626 37.518 1.00 56.62 ATOM 197 CH2 TRP A 50 37.099 76.247 37.608 1.00 57.34 ATOM 198 N HIS A 51 36.438 82.601 40.875 1.00 47.57 ATOM 199 CA HIS A 51 36.493 83.936 40.302 1.00 43.71 ATOM 200 C HIS A 51 35.609 83.909 39.066 1.00 49.02 ATOM 201 O HIS A 51 35.534 82.888 38.382 1.00 52.03 ATOM 202 CB HIS A 51 37.915 84.286 39.867 1.00 42.97 ATOM 203 CG HIS A 51 38.797 84.758 40.980 1.00 47.39 ATOM 204 ND1 HIS A 51 39.857 84.016 41.453 1.00 44.04 ATOM 205 CD2 HIS A 51 38.787 85.904 41.702 1.00 45.28 ATOM 206 CE1 HIS A 51 40.459 84.681 42.423 1.00 41.92 ATOM 207 NE2 HIS A 51 39.829 85.829 42.596 1.00 44.54 ATOM 208 N SER A 52 34.943 85.021 38.776 1.00 46.26 ATOM 209 CA SER A 52 34.183 85.142 37.542 1.00 53.88 ATOM 210 C SER A 52 35.109 84.919 36.357 1.00 52.50 ATOM 211 O SER A 52 34.747 84.257 35.386 1.00 52.57 ATOM 212 CB SER A 52 33.551 86.533 37.434 1.00 59.82 ATOM 213 OG SER A 52 32.633 86.770 38.485 1.00 63.41 ATOM 214 N SER A 53 36.313 85.476 36.453 1.00 50.53 ATOM 215 CA SER A 53 37.270 85.457 35.353 1.00 54.67 ATOM 216 C SER A 53 37.981 84.117 35.220 1.00 56.98 ATOM 217 O SER A 53 38.767 83.916 34.293 1.00 60.10 ATOM 218 CB SER A 53 38.307 86.568 35.533 1.00 61.62 ATOM 219 OG SER A 53 39.217 86.248 36.574 1.00 61.86 ATOM 220 N CYS A 54 37.715 83.203 36.148 1.00 54.24 ATOM 221 CA CYS A 54 38.289 81.864 36.070 1.00 54.95 ATOM 222 C CYS A 54 37.275 80.829 35.585 1.00 54.92 ATOM 223 O CYS A 54 37.649 79.722 35.203 1.00 57.19 ATOM 224 CB CYS A 54 38.896 81.447 37.412 1.00 52.94 ATOM 225 SG CYS A 54 40.420 82.333 37.821 1.00 68.57 ATOM 226 N LEU A 55 35.996 81.195 35.603 1.00 54.58 ATOM 227 CA LEU A 55 34.946 80.336 35.063 1.00 59.36 ATOM 228 C LEU A 55 34.750 80.575 33.573 1.00 60.68 ATOM 229 O LEU A 55 33.769 81.191 33.159 1.00 59.98 ATOM 230 CB LEU A 55 33.620 80.557 35.795 1.00 62.79 ATOM 231 CG LEU A 55 33.207 79.494 36.814 1.00 63.00 ATOM 232 CD1 LEU A 55 31.817 79.788 37.349 1.00 63.92 ATOM 233 CD2 LEU A 55 33.245 78.117 36.182 1.00 59.82 ATOM 234 ZN ZN A 869 40.473 82.051 40.177 0.80 51.74 ATOM 235 CL CL A 170 31.817 82.403 50.537 1.00 82.83 ATOM 236 CL CL A 172 34.557 93.723 43.169 1.00 79.85 TER