data_G82 # _chem_comp.id G82 _chem_comp.name "ETHYL (5S,8S,11R)-8-BENZYL-5-(3-TERT-BUTOXY-3-OXOPROPYL)-3,6,9-TRIOXO-11-{[(3S)-2-OXOPYRROLIDIN-3-YL]METHYL}-1-PHENYL-2-OXA-4,7,10-TRIAZATETRADECAN-14-OATE" _chem_comp.type non-polymer _chem_comp.pdbx_type HETAIN _chem_comp.formula "C37 H50 N4 O9" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2011-07-24 _chem_comp.pdbx_modified_date 2024-09-27 _chem_comp.pdbx_ambiguous_flag N _chem_comp.pdbx_release_status REL _chem_comp.pdbx_replaced_by ? _chem_comp.pdbx_replaces ? _chem_comp.formula_weight 694.814 _chem_comp.one_letter_code ? _chem_comp.three_letter_code G82 _chem_comp.pdbx_model_coordinates_details ? _chem_comp.pdbx_model_coordinates_missing_flag N _chem_comp.pdbx_ideal_coordinates_details Corina _chem_comp.pdbx_ideal_coordinates_missing_flag N _chem_comp.pdbx_model_coordinates_db_code 3ZVC _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site EBI _chem_comp.pdbx_pcm Y # loop_ _chem_comp_atom.comp_id _chem_comp_atom.atom_id _chem_comp_atom.alt_atom_id _chem_comp_atom.type_symbol _chem_comp_atom.charge _chem_comp_atom.pdbx_align _chem_comp_atom.pdbx_aromatic_flag _chem_comp_atom.pdbx_leaving_atom_flag _chem_comp_atom.pdbx_stereo_config _chem_comp_atom.pdbx_backbone_atom_flag _chem_comp_atom.pdbx_n_terminal_atom_flag _chem_comp_atom.pdbx_c_terminal_atom_flag _chem_comp_atom.model_Cartn_x _chem_comp_atom.model_Cartn_y _chem_comp_atom.model_Cartn_z _chem_comp_atom.pdbx_model_Cartn_x_ideal _chem_comp_atom.pdbx_model_Cartn_y_ideal _chem_comp_atom.pdbx_model_Cartn_z_ideal _chem_comp_atom.pdbx_component_atom_id _chem_comp_atom.pdbx_component_comp_id _chem_comp_atom.pdbx_ordinal G82 O88 O88 O 0 1 N N N N N N -5.929 12.308 18.091 8.347 -1.931 0.291 O88 G82 1 G82 C84 C84 C 0 1 N N N N N N -5.851 12.160 16.866 7.522 -2.097 -0.575 C84 G82 2 G82 O86 O86 O 0 1 N N N N N N -5.273 10.931 16.346 7.727 -3.017 -1.530 O86 G82 3 G82 C3 C3 C 0 1 N N N N N N -6.064 9.847 15.801 8.963 -3.776 -1.460 C3 G82 4 G82 C5 C5 C 0 1 N N N N N N -5.227 8.972 14.870 9.019 -4.768 -2.623 C5 G82 5 G82 C82 C82 C 0 1 N N N N N N -6.304 13.246 15.888 6.258 -1.276 -0.579 C82 G82 6 G82 C63 C63 C 0 1 N N N N N N -6.094 14.666 16.414 6.271 -0.314 0.611 C63 G82 7 G82 C57 C57 C 0 1 N N R N N N -4.621 15.002 16.655 4.988 0.520 0.607 C57 G82 8 G82 C59 C59 C 0 1 N N N N N N -4.446 16.273 17.494 5.056 1.565 1.722 C59 G82 9 G82 C61 C61 C 0 1 N N S N N N -2.968 16.535 17.822 6.170 2.568 1.413 C61 G82 10 G82 C73 C73 C 0 1 N N N N N N -2.214 15.326 18.425 6.366 3.540 2.599 C73 G82 11 G82 C71 C71 C 0 1 N N N N N N -1.245 15.921 19.465 6.688 4.864 1.872 C71 G82 12 G82 N69 N69 N 0 1 N N N N N N -1.936 17.186 19.728 6.067 4.744 0.547 N69 G82 13 G82 C65 C65 C 0 1 N N N N N N -2.771 17.597 18.856 5.771 3.464 0.261 C65 G82 14 G82 O66 O66 O 0 1 N N N N N N -3.327 18.692 18.805 5.259 3.083 -0.770 O66 G82 15 G82 N49 N49 N 0 1 N N N N N N -3.994 15.248 15.340 3.835 -0.357 0.829 N49 G82 16 G82 C39 C39 C 0 1 N N N N N N -3.025 14.418 14.909 2.628 -0.022 0.332 C39 G82 17 G82 O47 O47 O 0 1 N N N N N N -2.594 13.499 15.600 2.475 1.048 -0.218 O47 G82 18 G82 C37 C37 C 0 1 N N S N N N -2.366 14.672 13.569 1.469 -0.976 0.459 C37 G82 19 G82 C41 C41 C 0 1 N N N N N N -2.716 13.545 12.582 1.810 -2.289 -0.250 C41 G82 20 G82 C51 C51 C 0 1 Y N N N N N -4.226 13.380 12.439 0.704 -3.286 -0.019 C51 G82 21 G82 C55 C55 C 0 1 Y N N N N N -5.052 14.489 12.131 -0.360 -3.355 -0.899 C55 G82 22 G82 C11 C11 C 0 1 Y N N N N N -6.441 14.344 12.015 -1.375 -4.269 -0.687 C11 G82 23 G82 C9 C9 C 0 1 Y N N N N N -7.002 13.069 12.184 -1.326 -5.115 0.405 C9 G82 24 G82 C7 C7 C 0 1 Y N N N N N -6.189 11.963 12.478 -0.262 -5.047 1.285 C7 G82 25 G82 C53 C53 C 0 1 Y N N N N N -4.801 12.104 12.603 0.755 -4.135 1.070 C53 G82 26 G82 N33 N33 N 0 1 N N N N N N -0.918 14.609 13.792 0.279 -0.384 -0.156 N33 G82 27 G82 C31 C31 C 0 1 N N N N N N -0.270 15.505 14.539 -0.949 -0.769 0.245 C31 G82 28 G82 O35 O35 O 0 1 N N N N N N -0.869 16.448 15.029 -1.068 -1.605 1.115 O35 G82 29 G82 C23 C23 C 0 1 N N S N N N 1.227 15.391 14.744 -2.174 -0.159 -0.387 C23 G82 30 G82 C25 C25 C 0 1 N N N N N N 1.609 14.842 16.117 -2.167 1.354 -0.158 C25 G82 31 G82 C15 C15 C 0 1 N N N N N N 1.086 13.450 16.441 -3.342 1.988 -0.904 C15 G82 32 G82 C14 C14 C 0 1 N N N N N N 1.381 13.142 17.911 -3.336 3.478 -0.678 C14 G82 33 G82 O2 O2 O 0 1 N N N N N N 0.313 12.623 18.779 -4.281 4.246 -1.241 O2 G82 34 G82 C29 C29 C 0 1 N N N N N N 0.478 11.802 19.945 -4.213 5.673 -0.980 C29 G82 35 G82 C45 C45 C 0 1 N N N N N N 0.751 10.355 19.487 -2.880 6.222 -1.491 C45 G82 36 G82 C43 C43 C 0 1 N N N N N N 1.593 12.321 20.861 -5.365 6.379 -1.699 C43 G82 37 G82 C12 C12 C 0 1 N N N N N N -0.835 11.876 20.712 -4.323 5.922 0.526 C12 G82 38 G82 O1 O1 O 0 1 N N N N N N 2.493 13.343 18.383 -2.479 3.981 0.010 O1 G82 39 G82 N21 N21 N 0 1 N N N N N N 1.756 16.735 14.882 -3.375 -0.739 0.217 N21 G82 40 G82 C17 C17 C 0 1 N N N N N N 2.311 17.390 13.872 -4.534 -0.760 -0.472 C17 G82 41 G82 O19 O19 O 0 1 N N N N N N 2.437 16.905 12.763 -4.581 -0.297 -1.595 O19 G82 42 G82 O15 O15 O 0 1 N N N N N N 2.782 18.741 14.088 -5.638 -1.293 0.083 O15 G82 43 G82 C13 C13 C 0 1 N N N N N N 3.508 19.465 13.084 -6.850 -1.281 -0.717 C13 G82 44 G82 C4 C4 C 0 1 Y N N N N N 4.992 19.161 13.103 -7.973 -1.915 0.063 C4 G82 45 G82 C2 C2 C 0 1 Y N N N N N 5.824 19.764 12.153 -8.777 -1.136 0.874 C2 G82 46 G82 C1 C1 C 0 1 Y N N N N N 7.204 19.500 12.163 -9.807 -1.717 1.589 C1 G82 47 G82 C10 C10 C 0 1 Y N N N N N 7.753 18.623 13.117 -10.033 -3.077 1.493 C10 G82 48 G82 C8 C8 C 0 1 Y N N N N N 6.918 18.022 14.069 -9.230 -3.856 0.681 C8 G82 49 G82 C6 C6 C 0 1 Y N N N N N 5.547 18.296 14.059 -8.203 -3.274 -0.037 C6 G82 50 G82 H821 H821 H 0 0 N N N N N N -5.734 13.133 14.954 6.198 -0.705 -1.506 H821 G82 51 G82 H822 H822 H 0 0 N N N N N N -7.376 13.105 15.683 5.395 -1.937 -0.503 H822 G82 52 G82 H31C H31C H 0 0 N N N N N N -6.446 9.230 16.627 9.811 -3.094 -1.523 H31C G82 53 G82 H32C H32C H 0 0 N N N N N N -6.909 10.267 15.236 9.003 -4.319 -0.516 H32C G82 54 G82 H51C H51C H 0 0 N N N N N N -5.851 8.159 14.471 8.171 -5.450 -2.560 H51C G82 55 G82 H52C H52C H 0 0 N N N N N N -4.845 9.582 14.038 8.979 -4.225 -3.567 H52C G82 56 G82 H53C H53C H 0 0 N N N N N N -4.382 8.545 15.430 9.947 -5.338 -2.570 H53C G82 57 G82 H631 H631 H 0 0 N N N N N N -6.500 15.376 15.678 6.331 -0.885 1.538 H631 G82 58 G82 H632 H632 H 0 0 N N N N N N -6.638 14.772 17.364 7.134 0.347 0.535 H632 G82 59 G82 H57 H57 H 0 1 N N N N N N -4.129 14.158 17.160 4.884 1.021 -0.355 H57 G82 60 G82 H591 H591 H 0 0 N N N N N N -4.844 17.130 16.931 4.103 2.090 1.787 H591 G82 61 G82 H592 H592 H 0 0 N N N N N N -5.006 16.160 18.434 5.265 1.071 2.671 H592 G82 62 G82 H49 H49 H 0 1 N N N N N N -4.286 16.021 14.777 3.941 -1.178 1.334 H49 G82 63 G82 H61 H61 H 0 1 N N N N N N -2.454 16.836 16.897 7.100 2.047 1.189 H61 G82 64 G82 H731 H731 H 0 0 N N N N N N -2.920 14.635 18.909 5.452 3.630 3.186 H731 G82 65 G82 H732 H732 H 0 0 N N N N N N -1.656 14.791 17.642 7.201 3.227 3.226 H732 G82 66 G82 H711 H711 H 0 0 N N N N N N -1.173 15.295 20.367 6.259 5.707 2.414 H711 G82 67 G82 H712 H712 H 0 0 N N N N N N -0.240 16.080 19.048 7.766 4.988 1.773 H712 G82 68 G82 H69 H69 H 0 1 N N N N N N -1.759 17.709 20.562 5.893 5.491 -0.046 H69 G82 69 G82 H37 H37 H 0 1 N N N N N N -2.670 15.648 13.163 1.274 -1.173 1.513 H37 G82 70 G82 H411 H411 H 0 0 N N N N N N -2.287 13.785 11.598 1.918 -2.107 -1.319 H411 G82 71 G82 H412 H412 H 0 0 N N N N N N -2.286 12.601 12.949 2.744 -2.684 0.147 H412 G82 72 G82 H33 H33 H 0 1 N N N N N N -0.397 13.868 13.369 0.374 0.285 -0.851 H33 G82 73 G82 H55 H55 H 0 1 N N N N N N -4.604 15.461 11.983 -0.398 -2.694 -1.753 H55 G82 74 G82 H53 H53 H 0 1 N N N N N N -4.181 11.247 12.822 1.588 -4.085 1.756 H53 G82 75 G82 H11 H11 H 0 1 N N N N N N -7.067 15.197 11.800 -2.206 -4.323 -1.375 H11 G82 76 G82 H9 H9 H 0 1 N N N N N N -8.070 12.937 12.087 -2.119 -5.829 0.571 H9 G82 77 G82 H7 H7 H 0 1 N N N N N N -6.640 10.990 12.610 -0.223 -5.708 2.138 H7 G82 78 G82 H23 H23 H 0 1 N N N N N N 1.708 14.825 13.933 -2.170 -0.364 -1.458 H23 G82 79 G82 H251 H251 H 0 0 N N N N N N 2.707 14.812 16.175 -2.260 1.559 0.909 H251 G82 80 G82 H252 H252 H 0 0 N N N N N N 1.220 15.535 16.878 -1.232 1.773 -0.528 H252 G82 81 G82 H21 H21 H 0 1 N N N N N N 1.700 17.185 15.773 -3.338 -1.109 1.113 H21 G82 82 G82 H151 H151 H 0 0 N N N N N N 0.001 13.413 16.266 -3.249 1.782 -1.971 H151 G82 83 G82 H152 H152 H 0 0 N N N N N N 1.586 12.709 15.800 -4.277 1.568 -0.534 H152 G82 84 G82 H451 H451 H 0 0 N N N N N N 0.881 9.709 20.368 -2.801 6.044 -2.564 H451 G82 85 G82 H452 H452 H 0 0 N N N N N N -0.099 9.993 18.889 -2.828 7.293 -1.295 H452 G82 86 G82 H453 H453 H 0 0 N N N N N N 1.666 10.330 18.877 -2.059 5.719 -0.979 H453 G82 87 G82 H431 H431 H 0 0 N N N N N N 1.683 11.663 21.738 -6.315 5.988 -1.334 H431 G82 88 G82 H432 H432 H 0 0 N N N N N N 2.545 12.330 20.310 -5.313 7.450 -1.503 H432 G82 89 G82 H433 H433 H 0 0 N N N N N N 1.350 13.342 21.191 -5.286 6.201 -2.772 H433 G82 90 G82 H121 H121 H 0 0 N N N N N N -0.764 11.261 21.621 -3.503 5.419 1.038 H121 G82 91 G82 H122 H122 H 0 0 N N N N N N -1.038 12.920 20.991 -4.272 6.993 0.722 H122 G82 92 G82 H123 H123 H 0 0 N N N N N N -1.652 11.500 20.078 -5.273 5.531 0.890 H123 G82 93 G82 H131 H131 H 0 0 N N N N N N 3.106 19.196 12.096 -7.113 -0.252 -0.962 H131 G82 94 G82 H132 H132 H 0 0 N N N N N N 3.367 20.542 13.256 -6.683 -1.843 -1.636 H132 G82 95 G82 H2 H2 H 0 1 N N N N N N 5.406 20.431 11.414 -8.599 -0.073 0.949 H2 G82 96 G82 H6 H6 H 0 1 N N N N N N 4.906 17.836 14.797 -7.577 -3.882 -0.674 H6 G82 97 G82 H1 H1 H 0 1 N N N N N N 7.847 19.972 11.435 -10.434 -1.108 2.223 H1 G82 98 G82 H10 H10 H 0 1 N N N N N N 8.813 18.414 13.116 -10.838 -3.531 2.052 H10 G82 99 G82 H8 H8 H 0 1 N N N N N N 7.332 17.350 14.807 -9.407 -4.919 0.607 H8 G82 100 # loop_ _chem_comp_bond.comp_id _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _chem_comp_bond.value_order _chem_comp_bond.pdbx_aromatic_flag _chem_comp_bond.pdbx_stereo_config _chem_comp_bond.pdbx_ordinal G82 O88 C84 DOUB N N 1 G82 C84 O86 SING N N 2 G82 C84 C82 SING N N 3 G82 O86 C3 SING N N 4 G82 C3 C5 SING N N 5 G82 C82 C63 SING N N 6 G82 C63 C57 SING N N 7 G82 C57 C59 SING N N 8 G82 C57 N49 SING N N 9 G82 C59 C61 SING N N 10 G82 C61 C73 SING N N 11 G82 C61 C65 SING N N 12 G82 C73 C71 SING N N 13 G82 C71 N69 SING N N 14 G82 N69 C65 SING N N 15 G82 C65 O66 DOUB N N 16 G82 N49 C39 SING N N 17 G82 C39 O47 DOUB N N 18 G82 C39 C37 SING N N 19 G82 C37 C41 SING N N 20 G82 C37 N33 SING N N 21 G82 C41 C51 SING N N 22 G82 C51 C55 SING Y N 23 G82 C51 C53 DOUB Y N 24 G82 C55 C11 DOUB Y N 25 G82 C11 C9 SING Y N 26 G82 C9 C7 DOUB Y N 27 G82 C7 C53 SING Y N 28 G82 N33 C31 SING N N 29 G82 C31 O35 DOUB N N 30 G82 C31 C23 SING N N 31 G82 C23 C25 SING N N 32 G82 C23 N21 SING N N 33 G82 C25 C15 SING N N 34 G82 C15 C14 SING N N 35 G82 C14 O2 SING N N 36 G82 C14 O1 DOUB N N 37 G82 O2 C29 SING N N 38 G82 C29 C45 SING N N 39 G82 C29 C43 SING N N 40 G82 C29 C12 SING N N 41 G82 N21 C17 SING N N 42 G82 C17 O19 DOUB N N 43 G82 C17 O15 SING N N 44 G82 O15 C13 SING N N 45 G82 C13 C4 SING N N 46 G82 C4 C2 SING Y N 47 G82 C4 C6 DOUB Y N 48 G82 C2 C1 DOUB Y N 49 G82 C1 C10 SING Y N 50 G82 C10 C8 DOUB Y N 51 G82 C8 C6 SING Y N 52 G82 C82 H821 SING N N 53 G82 C82 H822 SING N N 54 G82 C3 H31C SING N N 55 G82 C3 H32C SING N N 56 G82 C5 H51C SING N N 57 G82 C5 H52C SING N N 58 G82 C5 H53C SING N N 59 G82 C63 H631 SING N N 60 G82 C63 H632 SING N N 61 G82 C57 H57 SING N N 62 G82 C59 H591 SING N N 63 G82 C59 H592 SING N N 64 G82 N49 H49 SING N N 65 G82 C61 H61 SING N N 66 G82 C73 H731 SING N N 67 G82 C73 H732 SING N N 68 G82 C71 H711 SING N N 69 G82 C71 H712 SING N N 70 G82 N69 H69 SING N N 71 G82 C37 H37 SING N N 72 G82 C41 H411 SING N N 73 G82 C41 H412 SING N N 74 G82 N33 H33 SING N N 75 G82 C55 H55 SING N N 76 G82 C53 H53 SING N N 77 G82 C11 H11 SING N N 78 G82 C9 H9 SING N N 79 G82 C7 H7 SING N N 80 G82 C23 H23 SING N N 81 G82 C25 H251 SING N N 82 G82 C25 H252 SING N N 83 G82 N21 H21 SING N N 84 G82 C15 H151 SING N N 85 G82 C15 H152 SING N N 86 G82 C45 H451 SING N N 87 G82 C45 H452 SING N N 88 G82 C45 H453 SING N N 89 G82 C43 H431 SING N N 90 G82 C43 H432 SING N N 91 G82 C43 H433 SING N N 92 G82 C12 H121 SING N N 93 G82 C12 H122 SING N N 94 G82 C12 H123 SING N N 95 G82 C13 H131 SING N N 96 G82 C13 H132 SING N N 97 G82 C2 H2 SING N N 98 G82 C6 H6 SING N N 99 G82 C1 H1 SING N N 100 G82 C10 H10 SING N N 101 G82 C8 H8 SING N N 102 # loop_ _pdbx_chem_comp_descriptor.comp_id _pdbx_chem_comp_descriptor.type _pdbx_chem_comp_descriptor.program _pdbx_chem_comp_descriptor.program_version _pdbx_chem_comp_descriptor.descriptor G82 SMILES ACDLabs 12.01 "O=C(OC(C)(C)C)CCC(NC(=O)OCc1ccccc1)C(=O)NC(C(=O)NC(CC2C(=O)NCC2)CCC(=O)OCC)Cc3ccccc3" G82 InChI InChI 1.03 "InChI=1S/C37H50N4O9/c1-5-48-31(42)18-16-28(23-27-20-21-38-33(27)44)39-35(46)30(22-25-12-8-6-9-13-25)40-34(45)29(17-19-32(43)50-37(2,3)4)41-36(47)49-24-26-14-10-7-11-15-26/h6-15,27-30H,5,16-24H2,1-4H3,(H,38,44)(H,39,46)(H,40,45)(H,41,47)/t27-,28+,29-,30-/m0/s1" G82 InChIKey InChI 1.03 MMMLJIROCXIHMV-XJYHXZFBSA-N G82 SMILES_CANONICAL CACTVS 3.385 "CCOC(=O)CC[C@H](C[C@@H]1CCNC1=O)NC(=O)[C@H](Cc2ccccc2)NC(=O)[C@H](CCC(=O)OC(C)(C)C)NC(=O)OCc3ccccc3" G82 SMILES CACTVS 3.385 "CCOC(=O)CC[CH](C[CH]1CCNC1=O)NC(=O)[CH](Cc2ccccc2)NC(=O)[CH](CCC(=O)OC(C)(C)C)NC(=O)OCc3ccccc3" G82 SMILES_CANONICAL "OpenEye OEToolkits" 1.9.2 "CCOC(=O)CC[C@H](C[C@@H]1CCNC1=O)NC(=O)[C@H](Cc2ccccc2)NC(=O)[C@H](CCC(=O)OC(C)(C)C)NC(=O)OCc3ccccc3" G82 SMILES "OpenEye OEToolkits" 1.9.2 "CCOC(=O)CCC(CC1CCNC1=O)NC(=O)C(Cc2ccccc2)NC(=O)C(CCC(=O)OC(C)(C)C)NC(=O)OCc3ccccc3" # loop_ _pdbx_chem_comp_identifier.comp_id _pdbx_chem_comp_identifier.type _pdbx_chem_comp_identifier.program _pdbx_chem_comp_identifier.program_version _pdbx_chem_comp_identifier.identifier G82 "SYSTEMATIC NAME" ACDLabs 12.01 "ethyl (5S,8S,11R)-8-benzyl-5-(3-tert-butoxy-3-oxopropyl)-3,6,9-trioxo-11-{[(3S)-2-oxopyrrolidin-3-yl]methyl}-1-phenyl-2-oxa-4,7,10-triazatetradecan-14-oate (non-preferred name)" G82 "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.9.2 "tert-butyl (4S)-5-[[(2S)-1-[[(2R)-5-ethoxy-5-oxidanylidene-1-[(3S)-2-oxidanylidenepyrrolidin-3-yl]pentan-2-yl]amino]-1-oxidanylidene-3-phenyl-propan-2-yl]amino]-5-oxidanylidene-4-(phenylmethoxycarbonylamino)pentanoate" # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site G82 "Create component" 2011-07-24 EBI G82 "Modify descriptor" 2014-09-05 RCSB G82 "Modify PCM" 2024-09-27 PDBE # _pdbx_chem_comp_pcm.pcm_id 1 _pdbx_chem_comp_pcm.comp_id G82 _pdbx_chem_comp_pcm.modified_residue_id CYS _pdbx_chem_comp_pcm.type None _pdbx_chem_comp_pcm.category "Covalent chemical modification" _pdbx_chem_comp_pcm.position "Amino-acid side chain" _pdbx_chem_comp_pcm.polypeptide_position "Any position" _pdbx_chem_comp_pcm.comp_id_linking_atom C63 _pdbx_chem_comp_pcm.modified_residue_id_linking_atom SG _pdbx_chem_comp_pcm.uniprot_specific_ptm_accession ? _pdbx_chem_comp_pcm.uniprot_generic_ptm_accession ? #