HEADER RIBOSOME 13-JUN-03 1PNU TITLE Crystal Structure of a Streptomycin Dependent Ribosome from TITLE 2 Escherichia Coli, 50S Subunit of 70S Ribosome. THIS FILE, 1PNU, TITLE 3 CONTAINS ONLY MOLECULES OF THE 50S RIBOSOMAL SUBUNIT. THE 30S TITLE 4 SUBUNIT, MRNA, P-SITE TRNA, AND A-SITE TRNA ARE IN THE PDB FILE 1PNS. COMPND MOL_ID: 27; COMPND 2 MOLECULE: 50S ribosomal protein L31; COMPND 3 CHAIN: Y; EXPDTA X-RAY DIFFRACTION REMARK 2 RESOLUTION. 8.70 ANGSTORMS DBREF 1PNU Y 1 73 PDB 1PNU 1PNU 1 73 SEQRES 1 Y 73 MET GLN LYS ASP LEU HIS PRO LYS ALA VAL PRO CYS LYS SEQRES 2 Y 73 ILE ILE TYR GLN GLY GLN VAL VAL MET GLU THR MET SER SEQRES 3 Y 73 THR ARG PRO GLU ILE HIS VAL ASP VAL TRP SER GLY VAL SEQRES 4 Y 73 HIS PRO PHE TRP THR GLY GLU GLU ARG PHE LEU ASP THR SEQRES 5 Y 73 GLU GLY ARG VAL ASP LYS PHE ASN LYS ARG PHE GLY ASP SEQRES 6 Y 73 SER TYR ARG ARG GLY SER LYS LYS ATOM 1 CA MET Y 1 166.012 -4.873 106.587 1.00737.35 ATOM 2 CA GLN Y 2 162.747 -5.718 108.348 1.00737.35 ATOM 3 CA LYS Y 3 161.019 -5.236 104.995 1.00737.35 ATOM 4 CA ASP Y 4 163.115 -7.992 103.429 1.00737.35 ATOM 5 CA LEU Y 5 161.724 -11.495 103.935 1.00737.35 ATOM 6 CA HIS Y 6 163.715 -14.420 105.332 1.00737.35 ATOM 7 CA PRO Y 7 163.860 -16.220 101.984 1.00737.35 ATOM 8 CA LYS Y 8 164.280 -14.304 98.725 1.00737.35 ATOM 9 CA ALA Y 9 164.327 -10.773 100.148 1.00737.35 ATOM 10 CA VAL Y 10 162.131 -8.412 98.131 1.00737.35 ATOM 11 CA PRO Y 11 163.220 -4.771 98.076 1.00737.35 ATOM 12 CA CYS Y 12 164.309 -4.259 94.468 1.00737.35 ATOM 13 CA LYS Y 13 163.028 -1.063 92.851 1.00737.35 ATOM 14 CA ILE Y 14 162.002 -0.318 89.266 1.00737.35 ATOM 15 CA ILE Y 15 160.955 2.430 86.853 1.00737.35 ATOM 16 CA TYR Y 16 157.541 3.583 85.638 1.00737.35 ATOM 17 CA GLN Y 17 157.232 4.541 81.971 1.00737.35 ATOM 18 CA GLY Y 18 154.530 4.660 79.314 1.00737.35 ATOM 19 CA GLN Y 19 153.726 6.281 75.977 1.00737.35 ATOM 20 CA VAL Y 20 151.516 6.128 72.885 1.00737.35 ATOM 21 CA VAL Y 21 152.098 2.618 71.541 1.00737.35 ATOM 22 CA MET Y 22 151.119 3.574 67.991 1.00737.35 ATOM 23 CA GLU Y 23 154.223 1.856 66.620 1.00737.35 ATOM 24 CA THR Y 24 154.374 -1.424 64.686 1.00737.35 ATOM 25 CA MET Y 25 151.205 -0.500 62.791 1.00737.35 ATOM 26 CA SER Y 26 152.320 2.754 61.169 1.00737.35 ATOM 27 CA THR Y 27 153.597 5.788 63.084 1.00737.35 ATOM 28 CA ARG Y 28 156.201 5.460 65.840 1.00737.35 ATOM 29 CA PRO Y 29 155.902 5.826 69.612 1.00737.35 ATOM 30 CA GLU Y 30 156.128 8.985 71.714 1.00737.35 ATOM 31 CA ILE Y 31 158.027 8.602 74.988 1.00737.35 ATOM 32 CA HIS Y 32 157.123 11.279 77.534 1.00737.35 ATOM 33 CA VAL Y 33 156.846 9.465 80.865 1.00737.35 ATOM 34 CA ASP Y 34 159.714 8.603 83.212 1.00737.35 ATOM 35 CA VAL Y 35 159.358 7.795 86.910 1.00737.35 ATOM 36 CA TRP Y 36 160.385 5.293 89.587 1.00737.35 ATOM 37 CA SER Y 37 158.648 2.426 91.382 1.00737.35 ATOM 38 CA GLY Y 38 159.115 -0.264 94.012 1.00737.35 ATOM 39 CA VAL Y 39 157.803 -3.590 95.293 1.00737.35 ATOM 40 CA HIS Y 40 156.435 -5.430 98.328 1.00737.35 ATOM 41 CA PRO Y 41 155.328 -8.807 99.686 1.00737.35 ATOM 42 CA PHE Y 42 153.065 -10.366 102.313 1.00737.35 ATOM 43 CA TRP Y 43 153.449 -11.383 105.959 1.00737.35 ATOM 44 CA THR Y 44 153.183 -14.751 107.708 1.00737.35 ATOM 45 CA GLY Y 45 154.255 -16.752 110.743 1.00737.35 ATOM 46 CA GLU Y 46 156.990 -19.345 110.277 1.00737.35 ATOM 47 CA GLU Y 47 159.076 -21.265 112.813 1.00737.35 ATOM 48 CA ARG Y 48 162.845 -21.378 112.323 1.00737.35 ATOM 49 CA PHE Y 49 163.217 -22.851 115.809 1.00737.35 ATOM 50 CA LEU Y 50 159.942 -22.168 117.620 1.00737.35 ATOM 51 CA ASP Y 51 157.914 -19.170 116.448 1.00737.35 ATOM 52 CA THR Y 52 158.603 -15.987 114.485 1.00737.35 ATOM 53 CA GLU Y 53 156.431 -13.433 112.688 1.00737.35 ATOM 54 CA GLY Y 54 158.253 -12.718 109.442 1.00737.35 ATOM 55 CA ARG Y 55 157.017 -11.026 106.276 1.00737.35 ATOM 56 CA VAL Y 56 157.419 -14.142 104.131 1.00737.35 ATOM 57 CA ASP Y 57 156.895 -13.273 100.466 1.00737.35 ATOM 58 CA LYS Y 58 154.615 -15.236 98.140 1.00737.35 ATOM 59 CA PHE Y 59 157.689 -16.940 96.689 1.00737.35 ATOM 60 CA ASN Y 60 158.838 -18.223 100.081 1.00737.35 ATOM 61 CA LYS Y 61 155.245 -18.985 101.070 1.00737.35 ATOM 62 CA ARG Y 62 154.790 -21.381 98.154 1.00737.35 ATOM 63 CA PHE Y 63 157.926 -23.298 99.129 1.00737.35 ATOM 64 CA GLY Y 64 156.981 -23.173 102.798 1.00737.35 ATOM 65 CA ASP Y 65 153.450 -24.473 102.285 1.00737.35 ATOM 66 CA SER Y 66 154.718 -27.291 100.071 1.00737.35 ATOM 67 CA TYR Y 67 158.127 -27.953 101.623 1.00737.35 ATOM 68 CA ARG Y 68 160.522 -27.017 104.426 1.00737.35 ATOM 69 CA ARG Y 69 163.748 -25.187 103.576 1.00737.35 ATOM 70 CA GLY Y 70 165.403 -23.394 106.476 1.00737.35 ATOM 71 CA SER Y 71 162.044 -22.773 108.131 1.00737.35 ATOM 72 CA LYS Y 72 158.655 -24.412 108.674 1.00737.35 ATOM 73 CA LYS Y 73 155.004 -23.354 108.582 1.00737.35 TER