HEADER LIGASE 10-SEP-02 1IYW TITLE Preliminary Structure of Thermus thermophilus Ligand-Free Valyl-tRNA TITLE 2 Synthetase COMPND MOL_ID: 1; COMPND 2 MOLECULE: Valyl-tRNA Synthetase; COMPND 3 CHAIN: A, B; COMPND 4 EC: 6.1.1.9; COMPND 5 ENGINEERED: YES; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 4.00 ANGSTORMS DBREF 1IYW B 1 862 UNP P96142 SYV_THETH 1 862 SEQRES 1 B 85 ARG ASP GLU GLU ALA GLU ARG ALA PHE GLU ALA LEU LYS SEQRES 2 B 85 GLN ALA VAL THR ALA VAL ARG ALA LEU LYS ALA GLU ALA SEQRES 3 B 85 GLY LEU PRO PRO ALA GLN GLU VAL ARG VAL TYR LEU GLU SEQRES 4 B 85 GLY GLU THR ALA PRO VAL GLU GLU ASN LEU GLU VAL PHE SEQRES 5 B 85 ARG PHE LEU SER ARG ALA ASP LEU LEU PRO GLU ARG PRO SEQRES 6 B 85 ALA LYS ALA LEU VAL LYS ALA MET PRO ARG VAL THR ALA SEQRES 7 B 85 ARG MET PRO LEU GLU GLY LEU ATOM 1 CA ARG B 711 145.067 101.129 10.649 1.00 72.80 ATOM 2 CA ASP B 712 147.017 98.938 13.092 1.00 79.83 ATOM 3 CA GLU B 713 146.931 99.998 16.752 1.00 73.25 ATOM 4 CA GLU B 714 149.429 97.326 17.735 1.00 68.85 ATOM 5 CA ALA B 715 151.817 97.324 14.777 1.00 48.68 ATOM 6 CA GLU B 716 152.115 101.051 15.333 1.00 38.84 ATOM 7 CA ARG B 717 152.089 100.283 19.077 1.00 31.77 ATOM 8 CA ALA B 718 155.152 98.181 18.364 1.00 29.87 ATOM 9 CA PHE B 719 157.331 100.434 16.196 1.00 39.41 ATOM 10 CA GLU B 720 157.360 103.325 18.641 1.00 42.50 ATOM 11 CA ALA B 721 158.785 100.896 21.236 1.00 38.43 ATOM 12 CA LEU B 722 161.744 101.084 18.893 1.00 39.18 ATOM 13 CA LYS B 723 161.662 104.900 18.886 1.00 48.41 ATOM 14 CA GLN B 724 161.432 105.187 22.691 1.00 42.76 ATOM 15 CA ALA B 725 164.478 102.908 22.613 1.00 34.68 ATOM 16 CA VAL B 726 166.065 104.587 19.606 1.00 25.64 ATOM 17 CA THR B 727 165.824 108.083 20.999 1.00 32.63 ATOM 18 CA ALA B 728 166.480 107.056 24.626 1.00 30.38 ATOM 19 CA VAL B 729 169.815 105.831 23.346 1.00 34.18 ATOM 20 CA ARG B 730 170.483 108.912 21.187 1.00 36.81 ATOM 21 CA ALA B 731 169.490 110.813 24.295 1.00 36.71 ATOM 22 CA LEU B 732 171.832 109.155 26.768 1.00 32.68 ATOM 23 CA LYS B 733 174.545 110.120 24.260 1.00 44.97 ATOM 24 CA ALA B 734 174.059 113.874 24.237 1.00 54.54 ATOM 25 CA GLU B 735 174.271 113.789 28.011 1.00 53.95 ATOM 26 CA ALA B 736 177.477 111.777 27.862 1.00 59.48 ATOM 27 CA GLY B 737 179.154 113.958 25.237 1.00 65.65 ATOM 28 CA LEU B 738 179.746 110.985 22.943 1.00 70.61 ATOM 29 CA PRO B 739 180.049 111.489 19.155 1.00 70.88 ATOM 30 CA PRO B 740 177.073 110.778 16.853 1.00 66.86 ATOM 31 CA ALA B 741 178.079 107.950 14.512 1.00 65.24 ATOM 32 CA GLN B 742 179.731 106.040 17.377 1.00 64.91 ATOM 33 CA GLU B 743 179.272 102.412 18.446 1.00 55.69 ATOM 34 CA VAL B 744 177.739 101.725 21.863 1.00 48.20 ATOM 35 CA ARG B 745 176.752 98.662 23.866 1.00 61.05 ATOM 36 CA VAL B 746 173.269 99.200 25.274 1.00 42.86 ATOM 37 CA TYR B 747 170.697 97.669 27.595 1.00 30.84 ATOM 38 CA LEU B 748 166.963 97.936 26.993 1.00 25.51 ATOM 39 CA GLU B 749 164.068 97.180 29.353 1.00 39.95 ATOM 40 CA GLY B 750 160.295 96.738 28.905 1.00 41.21 ATOM 41 CA GLU B 751 158.510 96.407 25.577 1.00 50.16 ATOM 42 CA THR B 752 161.931 95.842 24.049 1.00 45.39 ATOM 43 CA ALA B 753 160.664 93.059 21.783 1.00 43.04 ATOM 44 CA PRO B 754 160.447 95.350 18.682 1.00 37.17 ATOM 45 CA VAL B 755 164.095 96.246 19.167 1.00 32.47 ATOM 46 CA GLU B 756 164.939 92.520 19.126 1.00 41.51 ATOM 47 CA GLU B 757 163.029 91.213 16.126 1.00 27.23 ATOM 48 CA ASN B 758 164.494 94.229 14.278 1.00 25.38 ATOM 49 CA LEU B 759 168.031 94.316 15.643 1.00 12.25 ATOM 50 CA GLU B 760 169.556 95.093 12.257 1.00 31.34 ATOM 51 CA VAL B 761 168.109 98.575 12.109 1.00 14.41 ATOM 52 CA PHE B 762 167.917 99.158 15.842 1.00 19.69 ATOM 53 CA ARG B 763 171.641 99.135 15.339 1.00 26.96 ATOM 54 CA PHE B 764 171.605 101.256 12.205 1.00 31.86 ATOM 55 CA LEU B 765 169.569 104.038 13.744 1.00 27.69 ATOM 56 CA SER B 766 170.962 104.157 17.282 1.00 38.42 ATOM 57 CA ARG B 767 174.376 103.305 15.848 1.00 57.05 ATOM 58 CA ALA B 768 174.446 101.057 18.933 1.00 62.20 ATOM 59 CA ASP B 769 174.369 97.277 19.463 1.00 49.33 ATOM 60 CA LEU B 770 172.810 95.477 22.404 1.00 44.10 ATOM 61 CA LEU B 771 174.240 93.688 25.444 1.00 61.88 ATOM 62 CA PRO B 772 172.903 90.281 26.672 1.00 76.47 ATOM 63 CA GLU B 773 172.862 90.840 30.396 1.00 65.80 ATOM 64 CA ARG B 774 171.895 93.969 32.300 1.00 71.09 ATOM 65 CA PRO B 775 174.795 96.116 33.483 1.00 72.97 ATOM 66 CA ALA B 776 174.293 97.202 37.117 1.00 78.72 ATOM 67 CA LYS B 777 176.644 100.096 36.339 1.00 78.05 ATOM 68 CA ALA B 778 175.528 102.434 33.534 1.00 81.26 ATOM 69 CA LEU B 779 173.774 105.734 32.755 1.00 84.86 ATOM 70 CA VAL B 780 169.971 106.096 32.906 1.00 75.22 ATOM 71 CA LYS B 781 167.312 107.304 30.469 1.00 65.12 ATOM 72 CA ALA B 782 163.982 105.586 31.046 1.00 60.07 ATOM 73 CA MET B 783 161.002 106.342 28.789 1.00 47.01 ATOM 74 CA PRO B 784 157.262 106.058 29.315 1.00 42.62 ATOM 75 CA ARG B 785 157.362 102.487 28.001 1.00 42.10 ATOM 76 CA VAL B 786 161.087 101.655 27.886 1.00 44.33 ATOM 77 CA THR B 787 164.504 102.529 29.315 1.00 48.10 ATOM 78 CA ALA B 788 168.083 102.153 28.180 1.00 56.49 ATOM 79 CA ARG B 789 170.907 101.716 30.642 1.00 65.56 ATOM 80 CA MET B 790 174.100 102.445 28.685 1.00 63.36 ATOM 81 CA PRO B 791 177.338 101.013 30.222 1.00 61.06 ATOM 82 CA LEU B 792 180.139 103.434 31.095 1.00 70.69 ATOM 83 CA GLU B 793 182.153 101.368 28.545 1.00 74.03 ATOM 84 CA GLY B 794 186.365 101.694 23.146 1.00 59.62 ATOM 85 CA LEU B 795 188.229 103.736 25.803 1.00 53.18 TER