HEADER PROTEIN BINDING 03-NOV-08 3F5H TITLE Crystal structure of fused docking domains from PikAIII and PikAIV of TITLE 2 the pikromycin polyketide synthase COMPND MOL_ID: 1; COMPND 2 MOLECULE: Type I polyketide synthase PikAIII, Type I polyketide COMPND 3 synthase PikAIV fusion protein; COMPND 4 CHAIN: A, B; COMPND 5 C-terminal domain of PikAIII fused to N-terminal domain of ; COMPND 6 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 1.75 ANGSTORMS DBREF 3F5H A 1534 1562 UNP Q9ZGI3 Q9ZGI3_9ACT 1534 1562 DBREF 3F5H A 1 37 UNP Q9ZGI2 Q9ZGI2_9ACT 1 37 SEQRES 1 A 20 SER ILE ASP ASP LEU ASP ALA GLU ALA LEU ILE ARG MET SEQRES 2 A 20 ALA LEU GLY PRO ARG ASN THR ATOM 1 N SER A 12 27.956 14.413 7.719 1.00 32.58 ATOM 2 CA SER A 12 28.566 14.585 6.365 1.00 31.88 ATOM 3 C SER A 12 29.716 15.587 6.390 1.00 31.13 ATOM 4 O SER A 12 29.541 16.729 6.825 1.00 30.26 ATOM 5 CB SER A 12 27.535 15.058 5.350 1.00 32.11 ATOM 6 OG SER A 12 28.186 15.268 4.102 1.00 35.50 ATOM 7 N ILE A 13 30.881 15.165 5.894 1.00 29.75 ATOM 8 CA ILE A 13 32.062 16.026 5.931 1.00 27.98 ATOM 9 C ILE A 13 31.852 17.324 5.143 1.00 27.56 ATOM 10 O ILE A 13 32.451 18.348 5.461 1.00 26.03 ATOM 11 CB ILE A 13 33.357 15.251 5.537 1.00 28.20 ATOM 12 CG1 ILE A 13 33.788 14.364 6.696 1.00 28.38 ATOM 13 CG2 ILE A 13 34.494 16.201 5.212 1.00 27.49 ATOM 14 CD1 ILE A 13 34.735 13.243 6.313 1.00 32.30 ATOM 15 N ASP A 14 30.967 17.303 4.142 1.00 28.23 ATOM 16 CA ASP A 14 30.690 18.511 3.364 1.00 28.68 ATOM 17 C ASP A 14 30.056 19.606 4.189 1.00 27.86 ATOM 18 O ASP A 14 30.095 20.776 3.819 1.00 27.63 ATOM 19 CB ASP A 14 29.761 18.194 2.194 1.00 30.40 ATOM 20 CG ASP A 14 30.450 17.406 1.130 1.00 33.86 ATOM 21 OD1 ASP A 14 31.594 17.800 0.787 1.00 37.40 ATOM 22 OD2 ASP A 14 29.857 16.399 0.665 1.00 37.87 ATOM 23 N ASP A 15 29.454 19.215 5.301 1.00 27.14 ATOM 24 CA ASP A 15 28.765 20.170 6.166 1.00 26.98 ATOM 25 C ASP A 15 29.669 20.797 7.211 1.00 26.59 ATOM 26 O ASP A 15 29.260 21.703 7.923 1.00 27.46 ATOM 27 CB ASP A 15 27.612 19.466 6.860 1.00 26.94 ATOM 28 CG ASP A 15 26.479 19.151 5.908 1.00 29.14 ATOM 29 OD1 ASP A 15 26.221 19.973 5.012 1.00 29.53 ATOM 30 OD2 ASP A 15 25.851 18.084 6.065 1.00 34.20 ATOM 31 N LEU A 16 30.903 20.320 7.306 1.00 25.43 ATOM 32 CA LEU A 16 31.815 20.807 8.323 1.00 24.91 ATOM 33 C LEU A 16 32.587 22.034 7.869 1.00 25.01 ATOM 34 O LEU A 16 33.031 22.119 6.710 1.00 25.25 ATOM 35 CB LEU A 16 32.808 19.708 8.687 1.00 24.59 ATOM 36 CG LEU A 16 32.209 18.424 9.257 1.00 24.10 ATOM 37 CD1 LEU A 16 33.286 17.369 9.471 1.00 23.37 ATOM 38 CD2 LEU A 16 31.506 18.738 10.551 1.00 22.50 ATOM 39 N ASP A 17 32.799 22.957 8.802 1.00 25.00 ATOM 40 CA ASP A 17 33.575 24.147 8.529 1.00 24.08 ATOM 41 C ASP A 17 35.048 23.870 8.722 1.00 22.75 ATOM 42 O ASP A 17 35.419 22.801 9.214 1.00 21.86 ATOM 43 CB ASP A 17 33.110 25.356 9.382 1.00 25.44 ATOM 44 CG ASP A 17 33.289 25.160 10.899 1.00 28.34 ATOM 45 OD1 ASP A 17 33.999 24.247 11.385 1.00 29.16 ATOM 46 OD2 ASP A 17 32.705 25.978 11.646 1.00 34.25 ATOM 47 N ALA A 18 35.873 24.834 8.327 1.00 20.86 ATOM 48 CA ALA A 18 37.324 24.696 8.406 1.00 20.58 ATOM 49 C ALA A 18 37.821 24.337 9.800 1.00 20.31 ATOM 50 O ALA A 18 38.690 23.480 9.949 1.00 19.95 ATOM 51 CB ALA A 18 38.030 25.980 7.891 1.00 20.08 ATOM 52 N GLU A 19 37.319 25.024 10.820 1.00 19.82 ATOM 53 CA GLU A 19 37.734 24.729 12.182 1.00 20.01 ATOM 54 C GLU A 19 37.564 23.252 12.536 1.00 18.80 ATOM 55 O GLU A 19 38.449 22.626 13.109 1.00 17.88 ATOM 56 CB GLU A 19 36.944 25.593 13.178 1.00 21.08 ATOM 57 CG GLU A 19 37.368 25.310 14.593 1.00 27.04 ATOM 58 CD GLU A 19 36.900 26.361 15.572 1.00 35.54 ATOM 59 OE1 GLU A 19 35.662 26.538 15.684 1.00 34.92 ATOM 60 OE2 GLU A 19 37.783 27.001 16.223 1.00 37.80 ATOM 61 N ALA A 20 36.438 22.668 12.159 1.00 18.18 ATOM 62 CA ALA A 20 36.186 21.274 12.492 1.00 18.06 ATOM 63 C ALA A 20 37.057 20.323 11.675 1.00 17.43 ATOM 64 O ALA A 20 37.505 19.296 12.189 1.00 18.79 ATOM 65 CB ALA A 20 34.703 20.944 12.269 1.00 18.83 ATOM 66 N LEU A 21 37.294 20.663 10.409 1.00 16.41 ATOM 67 CA LEU A 21 38.151 19.839 9.547 1.00 15.55 ATOM 68 C LEU A 21 39.558 19.831 10.112 1.00 15.27 ATOM 69 O LEU A 21 40.213 18.804 10.183 1.00 14.61 ATOM 70 CB LEU A 21 38.173 20.371 8.097 1.00 15.26 ATOM 71 CG LEU A 21 36.797 20.373 7.397 1.00 15.11 ATOM 72 CD1 LEU A 21 36.853 21.148 6.114 1.00 15.30 ATOM 73 CD2 LEU A 21 36.341 18.940 7.150 1.00 16.25 ATOM 74 N ILE A 22 40.018 21.005 10.505 1.00 15.46 ATOM 75 CA ILE A 22 41.371 21.125 11.014 1.00 15.71 ATOM 76 C ILE A 22 41.523 20.288 12.277 1.00 17.30 ATOM 77 O ILE A 22 42.548 19.602 12.488 1.00 17.31 ATOM 78 CB ILE A 22 41.694 22.585 11.311 1.00 15.83 ATOM 79 CG1 ILE A 22 41.745 23.380 9.995 1.00 15.66 ATOM 80 CG2 ILE A 22 42.979 22.665 12.099 1.00 15.32 ATOM 81 CD1 ILE A 22 41.698 24.906 10.209 1.00 18.60 ATOM 82 N ARG A 23 40.517 20.338 13.146 1.00 16.56 ATOM 83 CA ARG A 23 40.599 19.573 14.374 1.00 18.34 ATOM 84 C ARG A 23 40.609 18.077 14.095 1.00 17.79 ATOM 85 O ARG A 23 41.276 17.302 14.791 1.00 18.32 ATOM 86 CB ARG A 23 39.456 19.916 15.299 1.00 18.38 ATOM 87 CG ARG A 23 39.762 19.500 16.735 1.00 23.51 ATOM 88 CD ARG A 23 38.502 19.661 17.574 1.00 29.80 ATOM 89 NE ARG A 23 37.484 18.704 17.119 1.00 34.00 ATOM 90 CZ ARG A 23 36.287 19.030 16.617 1.00 34.31 ATOM 91 NH1 ARG A 23 35.917 20.301 16.519 1.00 33.55 ATOM 92 NH2 ARG A 23 35.463 18.064 16.223 1.00 35.52 ATOM 93 N MET A 24 39.902 17.665 13.058 1.00 16.82 ATOM 94 CA MET A 24 39.840 16.255 12.733 1.00 17.08 ATOM 95 C MET A 24 41.223 15.787 12.338 1.00 15.88 ATOM 96 O MET A 24 41.659 14.700 12.718 1.00 16.42 ATOM 97 CB MET A 24 38.859 15.994 11.603 1.00 17.38 ATOM 98 CG MET A 24 37.426 16.102 12.087 1.00 19.44 ATOM 99 SD MET A 24 36.216 16.120 10.755 1.00 26.53 ATOM 100 CE MET A 24 36.416 14.457 10.097 1.00 21.14 ATOM 101 N ALA A 25 41.915 16.634 11.591 1.00 15.70 ATOM 102 CA ALA A 25 43.188 16.249 11.032 1.00 15.76 ATOM 103 C ALA A 25 44.317 16.358 12.060 1.00 17.13 ATOM 104 O ALA A 25 45.257 15.559 12.030 1.00 17.03 ATOM 105 CB ALA A 25 43.505 17.132 9.804 1.00 15.36 ATOM 106 N LEU A 26 44.260 17.371 12.929 1.00 15.92 ATOM 107 CA LEU A 26 45.414 17.661 13.779 1.00 17.45 ATOM 108 C LEU A 26 45.205 17.278 15.228 1.00 17.87 ATOM 109 O LEU A 26 46.174 17.139 15.976 1.00 18.22 ATOM 110 CB LEU A 26 45.758 19.155 13.720 1.00 17.02 ATOM 111 CG LEU A 26 46.244 19.670 12.356 1.00 16.93 ATOM 112 CD1 LEU A 26 46.449 21.179 12.434 1.00 16.15 ATOM 113 CD2 LEU A 26 47.546 18.986 11.970 1.00 19.32 ATOM 114 N GLY A 27 43.942 17.139 15.636 1.00 18.25 ATOM 115 CA GLY A 27 43.626 16.779 17.014 1.00 18.61 ATOM 116 C GLY A 27 43.478 17.993 17.926 1.00 19.48 ATOM 117 O GLY A 27 44.083 19.065 17.676 1.00 19.38 ATOM 118 N PRO A 28 42.682 17.852 18.997 1.00 18.54 ATOM 119 CA PRO A 28 42.400 19.021 19.830 1.00 19.03 ATOM 120 C PRO A 28 43.611 19.539 20.603 1.00 19.16 ATOM 121 O PRO A 28 43.659 20.718 20.924 1.00 19.02 ATOM 122 CB PRO A 28 41.297 18.519 20.778 1.00 18.72 ATOM 123 CG PRO A 28 41.527 17.049 20.861 1.00 19.42 ATOM 124 CD PRO A 28 42.042 16.627 19.511 1.00 19.52 ATOM 125 N ARG A 29 44.615 18.707 20.878 1.00 19.56 ATOM 126 CA ARG A 29 45.732 19.259 21.614 1.00 20.49 ATOM 127 C ARG A 29 46.375 20.327 20.739 1.00 20.00 ATOM 128 O ARG A 29 46.634 21.465 21.179 1.00 20.12 ATOM 129 CB ARG A 29 46.740 18.196 22.041 1.00 20.11 ATOM 130 CG ARG A 29 47.792 18.785 23.012 1.00 24.53 ATOM 131 CD ARG A 29 48.965 17.830 23.266 1.00 27.24 ATOM 132 NE ARG A 29 48.504 16.498 23.671 1.00 33.25 ATOM 133 CZ ARG A 29 48.384 16.073 24.933 1.00 35.50 ATOM 134 NH1 ARG A 29 48.678 16.872 25.963 1.00 35.16 ATOM 135 NH2 ARG A 29 47.965 14.833 25.162 1.00 35.09 ATOM 136 N ASN A 30 46.604 19.964 19.483 1.00 19.00 ATOM 137 CA ASN A 30 47.189 20.884 18.525 1.00 18.90 ATOM 138 C ASN A 30 46.367 22.154 18.323 1.00 18.27 ATOM 139 O ASN A 30 46.909 23.281 18.353 1.00 18.30 ATOM 140 CB ASN A 30 47.380 20.166 17.188 1.00 18.49 ATOM 141 CG ASN A 30 47.905 21.092 16.096 1.00 22.28 ATOM 142 OD1 ASN A 30 47.227 22.037 15.682 1.00 23.89 ATOM 143 ND2 ASN A 30 49.108 20.816 15.620 1.00 20.48 ATOM 144 N THR A 31 45.060 22.000 18.111 1.00 17.89 ATOM 145 CA THR A 31 44.252 23.163 17.817 1.00 17.39 ATOM 146 C THR A 31 44.063 24.064 19.045 1.00 17.78 ATOM 147 O THR A 31 44.042 25.286 18.907 1.00 16.77 ATOM 148 CB THR A 31 42.919 22.794 17.225 1.00 17.44 ATOM 149 OG1 THR A 31 42.199 21.996 18.166 1.00 19.11 ATOM 150 CG2 THR A 31 43.130 21.986 15.926 1.00 17.64 TER