HEADER PROTEIN BINDING 31-DEC-69 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 B 1534 1562 UNP Q9ZGI3 Q9ZGI3_9ACT 1534 1562 DBREF 3F5H B 1 37 UNP Q9ZGI2 Q9ZGI2_9ACT 1 37 SEQRES 1 B 20 SER ILE ASP ASP LEU ASP ALA GLU ALA LEU ILE ARG MET SEQRES 2 B 20 ALA LEU GLY PRO ARG ASN THR ATOM 1 N SER B1543 59.512 12.986 42.722 1.00 39.39 ATOM 2 CA SER B1543 58.185 12.452 43.140 1.00 38.75 ATOM 3 C SER B1543 57.144 13.569 43.237 1.00 38.49 ATOM 4 O SER B1543 57.428 14.736 42.941 1.00 38.46 ATOM 5 CB SER B1543 58.306 11.747 44.485 1.00 38.71 ATOM 6 OG SER B1543 58.433 12.695 45.528 1.00 39.50 ATOM 7 N ILE B1544 55.940 13.205 43.669 1.00 38.04 ATOM 8 CA ILE B1544 54.833 14.153 43.803 1.00 37.59 ATOM 9 C ILE B1544 55.263 15.336 44.647 1.00 37.72 ATOM 10 O ILE B1544 54.858 16.456 44.395 1.00 37.86 ATOM 11 CB ILE B1544 53.585 13.468 44.418 1.00 37.30 ATOM 12 CG1 ILE B1544 53.118 12.328 43.502 1.00 38.27 ATOM 13 CG2 ILE B1544 52.448 14.450 44.602 1.00 36.48 ATOM 14 CD1 ILE B1544 51.861 11.634 43.934 1.00 36.57 ATOM 15 N ASP B1545 56.106 15.082 45.640 1.00 38.34 ATOM 16 CA ASP B1545 56.653 16.147 46.481 1.00 39.35 ATOM 17 C ASP B1545 57.445 17.200 45.739 1.00 39.19 ATOM 18 O ASP B1545 57.569 18.325 46.213 1.00 39.90 ATOM 19 CB ASP B1545 57.541 15.558 47.558 1.00 40.05 ATOM 20 CG ASP B1545 56.772 15.209 48.789 1.00 43.18 ATOM 21 OD1 ASP B1545 56.328 16.156 49.480 1.00 47.07 ATOM 22 OD2 ASP B1545 56.590 13.998 49.063 1.00 46.81 ATOM 23 N ASP B1546 58.004 16.846 44.591 1.00 38.93 ATOM 24 CA ASP B1546 58.845 17.791 43.872 1.00 38.85 ATOM 25 C ASP B1546 58.070 18.626 42.865 1.00 37.76 ATOM 26 O ASP B1546 58.643 19.526 42.248 1.00 38.18 ATOM 27 CB ASP B1546 59.955 17.063 43.106 1.00 39.87 ATOM 28 CG ASP B1546 60.800 16.175 43.993 1.00 42.14 ATOM 29 OD1 ASP B1546 61.152 16.625 45.111 1.00 44.90 ATOM 30 OD2 ASP B1546 61.116 15.031 43.557 1.00 43.58 ATOM 31 N LEU B1547 56.791 18.321 42.652 1.00 35.24 ATOM 32 CA LEU B1547 56.065 18.982 41.570 1.00 32.89 ATOM 33 C LEU B1547 55.540 20.348 41.992 1.00 31.81 ATOM 34 O LEU B1547 55.091 20.525 43.121 1.00 31.34 ATOM 35 CB LEU B1547 54.914 18.112 41.071 1.00 32.21 ATOM 36 CG LEU B1547 55.268 16.725 40.544 1.00 31.48 ATOM 37 CD1 LEU B1547 54.036 16.094 39.924 1.00 31.55 ATOM 38 CD2 LEU B1547 56.404 16.790 39.524 1.00 31.82 ATOM 39 N ASP B1548 55.575 21.317 41.091 1.00 30.35 ATOM 40 CA ASP B1548 54.987 22.600 41.444 1.00 29.63 ATOM 41 C ASP B1548 53.478 22.561 41.274 1.00 27.35 ATOM 42 O ASP B1548 52.925 21.570 40.800 1.00 26.24 ATOM 43 CB ASP B1548 55.624 23.785 40.698 1.00 30.68 ATOM 44 CG ASP B1548 55.411 23.736 39.197 1.00 36.13 ATOM 45 OD1 ASP B1548 54.470 23.041 38.721 1.00 39.11 ATOM 46 OD2 ASP B1548 56.191 24.425 38.486 1.00 41.05 ATOM 47 N ALA B1549 52.819 23.635 41.686 1.00 25.82 ATOM 48 CA ALA B1549 51.359 23.687 41.678 1.00 24.46 ATOM 49 C ALA B1549 50.752 23.387 40.313 1.00 24.20 ATOM 50 O ALA B1549 49.764 22.673 40.226 1.00 21.90 ATOM 51 CB ALA B1549 50.863 25.035 42.179 1.00 24.35 ATOM 52 N GLU B1550 51.318 23.975 39.261 1.00 22.76 ATOM 53 CA GLU B1550 50.763 23.791 37.935 1.00 23.59 ATOM 54 C GLU B1550 50.755 22.301 37.549 1.00 21.28 ATOM 55 O GLU B1550 49.814 21.802 36.942 1.00 20.82 ATOM 56 CB GLU B1550 51.548 24.631 36.911 1.00 24.27 ATOM 57 CG GLU B1550 50.926 24.677 35.539 1.00 29.93 ATOM 58 CD GLU B1550 51.498 23.610 34.613 1.00 36.38 ATOM 59 OE1 GLU B1550 50.976 23.467 33.479 1.00 41.34 ATOM 60 OE2 GLU B1550 52.479 22.932 34.997 1.00 35.39 ATOM 61 N ALA B1551 51.789 21.588 37.938 1.00 19.47 ATOM 62 CA ALA B1551 51.906 20.196 37.579 1.00 19.66 ATOM 63 C ALA B1551 50.944 19.360 38.413 1.00 19.22 ATOM 64 O ALA B1551 50.430 18.355 37.942 1.00 19.06 ATOM 65 CB ALA B1551 53.330 19.706 37.801 1.00 19.68 ATOM 66 N LEU B1552 50.719 19.762 39.662 1.00 18.92 ATOM 67 CA LEU B1552 49.761 19.020 40.489 1.00 17.72 ATOM 68 C LEU B1552 48.368 19.159 39.907 1.00 17.66 ATOM 69 O LEU B1552 47.594 18.201 39.909 1.00 17.64 ATOM 70 CB LEU B1552 49.752 19.537 41.935 1.00 17.89 ATOM 71 CG LEU B1552 51.024 19.341 42.744 1.00 17.77 ATOM 72 CD1 LEU B1552 50.913 20.003 44.126 1.00 17.97 ATOM 73 CD2 LEU B1552 51.371 17.856 42.854 1.00 20.58 ATOM 74 N ILE B1553 48.017 20.365 39.472 1.00 17.09 ATOM 75 CA ILE B1553 46.681 20.589 38.943 1.00 17.24 ATOM 76 C ILE B1553 46.501 19.757 37.666 1.00 17.66 ATOM 77 O ILE B1553 45.474 19.108 37.479 1.00 18.03 ATOM 78 CB ILE B1553 46.449 22.070 38.646 1.00 16.96 ATOM 79 CG1 ILE B1553 46.389 22.880 39.965 1.00 16.77 ATOM 80 CG2 ILE B1553 45.174 22.240 37.789 1.00 16.83 ATOM 81 CD1 ILE B1553 46.576 24.422 39.769 1.00 18.90 ATOM 82 N ARG B1554 47.512 19.761 36.797 1.00 17.18 ATOM 83 CA ARG B1554 47.463 18.949 35.572 1.00 17.23 ATOM 84 C ARG B1554 47.372 17.460 35.898 1.00 16.53 ATOM 85 O ARG B1554 46.638 16.726 35.255 1.00 17.75 ATOM 86 CB ARG B1554 48.708 19.214 34.698 1.00 18.16 ATOM 87 CG ARG B1554 48.523 20.346 33.697 1.00 21.60 ATOM 88 CD ARG B1554 49.723 20.427 32.716 1.00 23.43 ATOM 89 NE ARG B1554 50.966 20.655 33.451 1.00 25.39 ATOM 90 CZ ARG B1554 51.984 19.798 33.463 1.00 28.02 ATOM 91 NH1 ARG B1554 51.898 18.677 32.759 1.00 29.30 ATOM 92 NH2 ARG B1554 53.081 20.055 34.171 1.00 27.86 ATOM 93 N MET B1555 48.089 17.013 36.909 1.00 16.05 ATOM 94 CA MET B1555 47.984 15.624 37.345 1.00 15.90 ATOM 95 C MET B1555 46.558 15.245 37.751 1.00 16.54 ATOM 96 O MET B1555 46.080 14.152 37.448 1.00 16.71 ATOM 97 CB MET B1555 48.993 15.342 38.464 1.00 16.91 ATOM 98 CG MET B1555 48.952 13.917 38.949 1.00 18.12 ATOM 99 SD MET B1555 50.043 13.572 40.340 1.00 23.67 ATOM 100 CE MET B1555 51.592 13.464 39.456 1.00 23.87 ATOM 101 N ALA B1556 45.880 16.153 38.433 1.00 14.98 ATOM 102 CA ALA B1556 44.535 15.874 38.914 1.00 15.88 ATOM 103 C ALA B1556 43.486 16.072 37.829 1.00 15.98 ATOM 104 O ALA B1556 42.471 15.348 37.792 1.00 16.74 ATOM 105 CB ALA B1556 44.221 16.759 40.103 1.00 15.91 ATOM 106 N LEU B1557 43.682 17.059 36.958 1.00 15.37 ATOM 107 CA LEU B1557 42.570 17.475 36.066 1.00 16.04 ATOM 108 C LEU B1557 42.801 17.140 34.584 1.00 16.30 ATOM 109 O LEU B1557 41.871 17.121 33.802 1.00 16.36 ATOM 110 CB LEU B1557 42.307 18.987 36.202 1.00 16.02 ATOM 111 CG LEU B1557 41.805 19.473 37.563 1.00 16.30 ATOM 112 CD1 LEU B1557 41.581 20.968 37.515 1.00 17.43 ATOM 113 CD2 LEU B1557 40.495 18.749 37.970 1.00 13.93 ATOM 114 N GLY B1558 44.055 16.933 34.206 1.00 16.40 ATOM 115 CA GLY B1558 44.405 16.614 32.822 1.00 18.00 ATOM 116 C GLY B1558 44.566 17.846 31.954 1.00 19.50 ATOM 117 O GLY B1558 44.156 18.953 32.333 1.00 18.51 ATOM 118 N PRO B1559 45.164 17.663 30.776 1.00 21.14 ATOM 119 CA PRO B1559 45.553 18.797 29.924 1.00 22.30 ATOM 120 C PRO B1559 44.375 19.441 29.235 1.00 22.83 ATOM 121 O PRO B1559 44.407 20.653 28.990 1.00 23.52 ATOM 122 CB PRO B1559 46.480 18.144 28.889 1.00 22.59 ATOM 123 CG PRO B1559 45.947 16.736 28.795 1.00 23.09 ATOM 124 CD PRO B1559 45.637 16.383 30.223 1.00 22.17 ATOM 125 N ARG B1560 43.334 18.679 28.918 1.00 22.77 ATOM 126 CA ARG B1560 42.194 19.324 28.264 1.00 23.78 ATOM 127 C ARG B1560 41.578 20.374 29.179 1.00 23.03 ATOM 128 O ARG B1560 41.241 21.489 28.735 1.00 22.27 ATOM 129 CB ARG B1560 41.122 18.342 27.816 1.00 24.68 ATOM 130 CG ARG B1560 39.940 19.072 27.178 1.00 27.61 ATOM 131 CD ARG B1560 38.815 18.154 26.733 1.00 33.81 ATOM 132 NE ARG B1560 39.250 17.212 25.696 1.00 37.91 ATOM 133 CZ ARG B1560 39.050 17.358 24.379 1.00 40.07 ATOM 134 NH1 ARG B1560 38.416 18.421 23.885 1.00 40.82 ATOM 135 NH2 ARG B1560 39.493 16.422 23.550 1.00 40.76 ATOM 136 N ASN B1561 41.423 20.017 30.452 1.00 21.40 ATOM 137 CA ASN B1561 40.854 20.958 31.420 1.00 21.51 ATOM 138 C ASN B1561 41.787 22.156 31.642 1.00 19.98 ATOM 139 O ASN B1561 41.352 23.309 31.615 1.00 20.01 ATOM 140 CB ASN B1561 40.516 20.258 32.762 1.00 21.49 ATOM 141 CG ASN B1561 40.220 21.260 33.889 1.00 24.02 ATOM 142 OD1 ASN B1561 41.060 22.097 34.230 1.00 30.46 ATOM 143 ND2 ASN B1561 39.036 21.171 34.473 1.00 30.48 ATOM 144 N THR B1562 43.076 21.916 31.835 1.00 20.12 ATOM 145 CA THR B1562 43.948 23.053 32.141 1.00 18.53 ATOM 146 C THR B1562 44.139 23.977 30.910 1.00 19.18 ATOM 147 O THR B1562 44.188 25.208 31.044 1.00 19.44 ATOM 148 CB THR B1562 45.295 22.601 32.703 1.00 19.66 ATOM 149 OG1 THR B1562 45.911 21.744 31.747 1.00 19.10 ATOM 150 CG2 THR B1562 45.092 21.809 34.039 1.00 18.20 TER