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 A 1 862 UNP P96142 SYV_THETH 1 862 SEQRES 1 A 66 ASP VAL GLU GLU TRP ARG ARG ARG GLN GLU LYS ARG LEU SEQRES 2 A 66 LYS GLU LEU LEU ALA LEU ALA GLU ARG SER GLN ARG LYS SEQRES 3 A 66 LEU ALA SER PRO GLY PHE ARG GLU LYS ALA PRO LYS GLU SEQRES 4 A 66 VAL VAL GLU ALA GLU GLU ALA ARG LEU LYS GLU ASN LEU SEQRES 5 A 66 GLU GLN ALA GLU ARG ILE ARG GLU ALA LEU SER GLN ILE SEQRES 6 A 66 GLY ATOM 1 CA ASP A 797 52.032 2.850 30.336 1.00 57.55 ATOM 2 CA VAL A 798 49.887 1.797 33.362 1.00 43.33 ATOM 3 CA GLU A 799 51.832 4.283 35.432 1.00 56.36 ATOM 4 CA GLU A 800 52.093 7.253 33.071 1.00 50.63 ATOM 5 CA TRP A 801 48.366 6.758 32.623 1.00 40.45 ATOM 6 CA ARG A 802 47.838 6.376 36.351 1.00 44.06 ATOM 7 CA ARG A 803 49.671 9.672 36.614 1.00 44.81 ATOM 8 CA ARG A 804 48.590 11.351 33.365 1.00 63.91 ATOM 9 CA GLN A 805 45.180 11.093 35.073 1.00 63.60 ATOM 10 CA GLU A 806 46.244 11.169 38.731 1.00 58.21 ATOM 11 CA LYS A 807 47.863 14.576 38.229 1.00 50.00 ATOM 12 CA ARG A 808 45.107 15.597 35.818 1.00 53.57 ATOM 13 CA LEU A 809 42.772 15.166 38.807 1.00 54.44 ATOM 14 CA LYS A 810 44.289 17.602 41.292 1.00 49.13 ATOM 15 CA GLU A 811 44.138 20.333 38.643 1.00 49.79 ATOM 16 CA LEU A 812 40.330 20.177 38.391 1.00 49.61 ATOM 17 CA LEU A 813 39.267 20.352 42.049 1.00 49.01 ATOM 18 CA ALA A 814 41.505 23.394 42.064 1.00 36.40 ATOM 19 CA LEU A 815 40.000 25.134 39.040 1.00 32.57 ATOM 20 CA ALA A 816 36.835 23.894 40.729 1.00 46.71 ATOM 21 CA GLU A 817 37.680 25.212 44.180 1.00 44.92 ATOM 22 CA ARG A 818 38.319 28.587 42.607 1.00 36.79 ATOM 23 CA SER A 819 35.101 28.873 40.593 1.00 42.11 ATOM 24 CA GLN A 820 32.985 28.170 43.707 1.00 50.13 ATOM 25 CA ARG A 821 34.307 30.880 46.059 1.00 40.80 ATOM 26 CA LYS A 822 34.046 33.601 43.406 1.00 42.26 ATOM 27 CA LEU A 823 30.410 32.659 42.933 1.00 50.53 ATOM 28 CA ALA A 824 29.682 32.197 46.617 1.00 50.86 ATOM 29 CA SER A 825 31.831 35.299 47.279 1.00 50.06 ATOM 30 CA PRO A 826 31.025 38.912 48.353 1.00 41.85 ATOM 31 CA GLY A 827 29.054 41.075 45.908 1.00 28.96 ATOM 32 CA PHE A 828 29.717 38.538 43.197 1.00 38.96 ATOM 33 CA ARG A 829 26.942 36.009 44.063 1.00 47.44 ATOM 34 CA GLU A 830 24.305 38.709 43.682 1.00 48.72 ATOM 35 CA LYS A 831 25.750 42.063 42.671 1.00 44.24 ATOM 36 CA ALA A 832 27.361 40.225 39.752 1.00 50.55 ATOM 37 CA PRO A 833 25.767 40.034 36.192 1.00 55.61 ATOM 38 CA LYS A 834 23.398 37.140 35.584 1.00 49.47 ATOM 39 CA GLU A 835 25.731 35.988 32.858 1.00 43.14 ATOM 40 CA VAL A 836 29.451 35.441 33.688 1.00 53.01 ATOM 41 CA VAL A 837 28.205 34.627 37.193 1.00 53.42 ATOM 42 CA GLU A 838 26.369 31.503 36.036 1.00 43.57 ATOM 43 CA ALA A 839 29.286 31.083 33.667 1.00 35.03 ATOM 44 CA GLU A 840 31.967 30.384 36.278 1.00 34.30 ATOM 45 CA GLU A 841 29.008 28.583 37.790 1.00 41.40 ATOM 46 CA ALA A 842 28.361 26.706 34.532 1.00 40.09 ATOM 47 CA ARG A 843 31.985 25.678 34.766 1.00 34.53 ATOM 48 CA LEU A 844 32.160 24.620 38.428 1.00 26.51 ATOM 49 CA LYS A 845 29.631 22.013 37.455 1.00 36.07 ATOM 50 CA GLU A 846 31.324 20.096 34.625 1.00 44.04 ATOM 51 CA ASN A 847 34.506 20.365 36.638 1.00 30.23 ATOM 52 CA LEU A 848 33.196 18.315 39.564 1.00 43.92 ATOM 53 CA GLU A 849 31.993 15.730 37.016 1.00 51.95 ATOM 54 CA GLN A 850 35.216 15.452 34.987 1.00 38.30 ATOM 55 CA ALA A 851 36.526 14.822 38.466 1.00 25.23 ATOM 56 CA GLU A 852 34.212 11.851 39.006 1.00 31.47 ATOM 57 CA ARG A 853 34.863 10.355 35.546 1.00 41.35 ATOM 58 CA ILE A 854 38.645 10.498 35.981 1.00 36.23 ATOM 59 CA ARG A 855 38.052 9.422 39.583 1.00 35.25 ATOM 60 CA GLU A 856 36.591 5.982 38.809 1.00 40.95 ATOM 61 CA ALA A 857 38.654 5.562 35.630 1.00 46.25 ATOM 62 CA LEU A 858 41.501 5.592 38.099 1.00 48.78 ATOM 63 CA SER A 859 39.345 4.053 40.839 1.00 32.24 ATOM 64 CA GLN A 860 38.165 0.949 39.000 1.00 33.16 ATOM 65 CA ILE A 861 41.252 0.511 36.810 1.00 56.12 ATOM 66 CA GLY A 862 43.827 -1.578 38.636 1.00 70.58 TER