data_A1B21
# 
_chem_comp.id                                    A1B21 
_chem_comp.name                                  "N-[(1S)-1-[(3R,5R,7R)-adamantan-1-yl]-2-({(1Z,2S)-1-imino-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}amino)-2-oxoethyl]-N~2~-(tert-butylcarbamoyl)-3-methyl-L-valinamide" 
_chem_comp.type                                  non-polymer 
_chem_comp.pdbx_type                             HETAIN 
_chem_comp.formula                               "C30 H50 N6 O4" 
_chem_comp.mon_nstd_parent_comp_id               ? 
_chem_comp.pdbx_synonyms                         ? 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2025-03-21 
_chem_comp.pdbx_modified_date                    2025-07-25 
_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                        558.756 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     A1B21 
_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        9NSL 
_chem_comp.pdbx_subcomponent_list                ? 
_chem_comp.pdbx_processing_site                  RCSB 
_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_n_terminal_atom_flag 
_chem_comp_atom.pdbx_backbone_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 
A1B21 C6  C1  C 0 1 N N N N N N 73.718 -46.281 1.939  1.416  2.489  1.792  C6  A1B21 1  
A1B21 C7  C2  C 0 1 N N N N N N 75.244 -45.679 3.838  2.056  3.113  -0.541 C7  A1B21 2  
A1B21 C8  C3  C 0 1 N N N N N N 73.749 -43.941 2.867  3.799  3.002  1.246  C8  A1B21 3  
A1B21 C9  C4  C 0 1 N N N N N N 74.613 -45.173 2.520  2.504  2.376  0.723  C9  A1B21 4  
A1B21 C10 C5  C 0 1 N N S N N N 75.791 -44.756 1.568  2.747  0.902  0.395  C10 A1B21 5  
A1B21 C12 C6  C 0 1 N N N N N N 76.647 -43.528 1.957  1.500  0.310  -0.209 C12 A1B21 6  
A1B21 C13 C7  C 0 1 N N N N N N 76.537 -40.365 2.163  -1.985 -0.016 0.848  C13 A1B21 7  
A1B21 C14 C8  C 0 1 N N S N N N 77.317 -41.276 1.212  -0.826 -0.396 -0.038 C14 A1B21 8  
A1B21 C16 C9  C 0 1 N N S N N N 76.866 -39.536 4.472  -4.366 0.354  1.209  C16 A1B21 9  
A1B21 C17 C10 C 0 1 N N N N N N 77.268 -38.121 4.870  -4.766 -0.744 2.160  C17 A1B21 10 
A1B21 C18 C11 C 0 1 N N N N N N 77.528 -40.601 5.361  -5.553 0.710  0.312  C18 A1B21 11 
A1B21 C20 C12 C 0 1 N N S N N N 76.799 -41.837 5.601  -5.183 1.901  -0.575 C20 A1B21 12 
A1B21 C21 C13 C 0 1 N N N N N N 75.252 -41.705 5.918  -4.955 3.165  0.285  C21 A1B21 13 
A1B21 C22 C14 C 0 1 N N N N N N 74.879 -42.883 6.844  -5.533 4.273  -0.623 C22 A1B21 14 
A1B21 C24 C15 C 0 1 N N N N N N 77.237 -42.803 6.716  -6.341 2.269  -1.476 C24 A1B21 15 
A1B21 C26 C16 C 0 1 N N N N N N 77.829 -38.323 -2.039 -0.787 -4.306 -1.892 C26 A1B21 16 
A1B21 C27 C17 C 0 1 N N N N N N 76.853 -39.497 -2.257 -2.010 -3.914 -1.060 C27 A1B21 17 
A1B21 C28 C18 C 0 1 N N N N N N 77.539 -40.568 -3.128 -1.918 -4.568 0.320  C28 A1B21 18 
A1B21 C29 C19 C 0 1 N N N N N N 78.798 -41.088 -2.404 -0.647 -4.092 1.026  C29 A1B21 19 
A1B21 C3  C20 C 0 1 N N N N N N 77.005 -46.112 -0.144 5.125  0.766  -0.117 C3  A1B21 20 
A1B21 C30 C21 C 0 1 N N N N N N 79.780 -39.922 -2.174 0.576  -4.483 0.194  C30 A1B21 21 
A1B21 C31 C22 C 0 1 N N N N N N 79.094 -38.838 -1.320 0.484  -3.829 -1.186 C31 A1B21 22 
A1B21 C32 C23 C 0 1 N N N N N N 76.464 -40.105 -0.889 -2.054 -2.393 -0.902 C32 A1B21 23 
A1B21 C33 C24 C 0 1 N N N N N N 77.724 -40.622 -0.146 -0.783 -1.917 -0.196 C33 A1B21 24 
A1B21 C34 C25 C 0 1 N N N N N N 78.399 -41.689 -1.042 -0.691 -2.571 1.184  C34 A1B21 25 
A1B21 C35 C26 C 0 1 N N N N N N 78.701 -39.435 0.047  0.440  -2.308 -1.028 C35 A1B21 26 
A1B21 C36 C27 C 0 1 N N N N N N 78.924 -47.016 -1.650 7.526  0.638  -0.514 C36 A1B21 27 
A1B21 C37 C28 C 0 1 N N N N N N 80.250 -47.663 -1.219 7.720  -0.559 0.419  C37 A1B21 28 
A1B21 C38 C29 C 0 1 N N N N N N 78.163 -48.006 -2.551 7.825  1.931  0.247  C38 A1B21 29 
A1B21 C39 C30 C 0 1 N N N N N N 79.222 -45.700 -2.394 8.478  0.515  -1.705 C39 A1B21 30 
A1B21 N11 N1  N 0 1 N N N N N N 76.660 -45.855 1.150  3.852  0.789  -0.559 N11 A1B21 31 
A1B21 N15 N2  N 0 1 N N N N N N 77.273 -39.722 3.085  -3.246 -0.100 0.381  N15 A1B21 32 
A1B21 N2  N3  N 0 1 N N N N N N 78.183 -46.764 -0.387 6.142  0.663  -0.995 N2  A1B21 33 
A1B21 N23 N4  N 0 1 N N N N N N 76.191 -43.367 7.297  -6.518 3.602  -1.479 N23 A1B21 34 
A1B21 N4  N5  N 0 1 N N N N N N 76.524 -42.491 1.107  0.424  0.069  0.567  N4  A1B21 35 
A1B21 N40 N6  N 0 1 N N N N N N 76.384 -37.289 5.255  -4.142 -1.861 2.146  N40 A1B21 36 
A1B21 O1  O1  O 0 1 N N N N N N 76.278 -45.767 -1.104 5.356  0.839  1.075  O1  A1B21 37 
A1B21 O19 O2  O 0 1 N N N N N N 75.311 -40.240 2.082  -1.782 0.366  1.981  O19 A1B21 38 
A1B21 O25 O3  O 0 1 N N N N N N 78.426 -42.894 6.953  -7.012 1.478  -2.103 O25 A1B21 39 
A1B21 O5  O4  O 0 1 N N N N N N 77.394 -43.483 2.949  1.463  0.050  -1.393 O5  A1B21 40 
A1B21 H1  H1  H 0 1 N N N N N N 72.919 -46.521 2.656  1.270  3.537  2.054  H1  A1B21 41 
A1B21 H2  H2  H 0 1 N N N N N N 73.272 -45.935 0.995  0.483  2.078  1.405  H2  A1B21 42 
A1B21 H3  H3  H 0 1 N N N N N N 74.323 -47.180 1.750  1.717  1.931  2.679  H3  A1B21 43 
A1B21 H4  H4  H 0 1 N N N N N N 74.448 -45.982 4.534  1.884  4.163  -0.307 H4  A1B21 44 
A1B21 H5  H5  H 0 1 N N N N N N 75.893 -46.541 3.626  2.832  3.033  -1.302 H5  A1B21 45 
A1B21 H6  H6  H 0 1 N N N N N N 75.841 -44.874 4.292  1.134  2.667  -0.913 H6  A1B21 46 
A1B21 H7  H7  H 0 1 N N N N N N 72.928 -44.244 3.533  4.118  2.477  2.147  H7  A1B21 47 
A1B21 H8  H8  H 0 1 N N N N N N 74.371 -43.187 3.372  4.575  2.922  0.485  H8  A1B21 48 
A1B21 H9  H9  H 0 1 N N N N N N 73.332 -43.514 1.943  3.626  4.052  1.480  H9  A1B21 49 
A1B21 H10 H10 H 0 1 N N N N N N 75.280 -44.439 0.647  2.999  0.363  1.309  H10 A1B21 50 
A1B21 H11 H11 H 0 1 N N N N N N 78.256 -41.536 1.723  -0.951 0.068  -1.017 H11 A1B21 51 
A1B21 H12 H12 H 0 1 N N N N N N 75.774 -39.634 4.557  -4.064 1.234  1.778  H12 A1B21 52 
A1B21 H13 H13 H 0 1 N N N N N N 78.305 -37.823 4.825  -5.580 -0.589 2.853  H13 A1B21 53 
A1B21 H14 H14 H 0 1 N N N N N N 78.485 -40.871 4.891  -5.804 -0.146 -0.315 H14 A1B21 54 
A1B21 H15 H15 H 0 1 N N N N N N 77.719 -40.138 6.340  -6.411 0.970  0.931  H15 A1B21 55 
A1B21 H16 H16 H 0 1 N N N N N N 76.853 -42.418 4.668  -4.295 1.675  -1.165 H16 A1B21 56 
A1B21 H17 H17 H 0 1 N N N N N N 75.050 -40.749 6.423  -5.505 3.103  1.224  H17 A1B21 57 
A1B21 H18 H18 H 0 1 N N N N N N 74.670 -41.758 4.986  -3.892 3.326  0.468  H18 A1B21 58 
A1B21 H19 H19 H 0 1 N N N N N N 74.268 -42.542 7.692  -6.018 5.040  -0.020 H19 A1B21 59 
A1B21 H20 H20 H 0 1 N N N N N N 74.337 -43.665 6.292  -4.743 4.714  -1.230 H20 A1B21 60 
A1B21 H21 H21 H 0 1 N N N N N N 78.109 -37.892 -3.012 -0.756 -5.390 -2.005 H21 A1B21 61 
A1B21 H22 H22 H 0 1 N N N N N N 77.344 -37.552 -1.422 -0.853 -3.840 -2.876 H22 A1B21 62 
A1B21 H23 H23 H 0 1 N N N N N N 75.949 -39.133 -2.766 -2.915 -4.254 -1.563 H23 A1B21 63 
A1B21 H24 H24 H 0 1 N N N N N N 77.827 -40.127 -4.094 -2.789 -4.289 0.913  H24 A1B21 64 
A1B21 H25 H25 H 0 1 N N N N N N 76.843 -41.403 -3.299 -1.887 -5.652 0.208  H25 A1B21 65 
A1B21 H26 H26 H 0 1 N N N N N N 79.283 -41.861 -3.019 -0.581 -4.557 2.010  H26 A1B21 66 
A1B21 H27 H27 H 0 1 N N N N N N 80.673 -40.292 -1.649 1.482  -4.144 0.697  H27 A1B21 67 
A1B21 H28 H28 H 0 1 N N N N N N 80.075 -39.494 -3.143 0.607  -5.567 0.082  H28 A1B21 68 
A1B21 H29 H29 H 0 1 N N N N N N 79.791 -38.001 -1.165 1.355  -4.108 -1.779 H29 A1B21 69 
A1B21 H30 H30 H 0 1 N N N N N N 75.974 -39.334 -0.277 -2.119 -1.928 -1.885 H30 A1B21 70 
A1B21 H31 H31 H 0 1 N N N N N N 75.769 -40.943 -1.050 -2.925 -2.115 -0.309 H31 A1B21 71 
A1B21 H32 H32 H 0 1 N N N N N N 77.696 -42.519 -1.206 -1.562 -2.292 1.777  H32 A1B21 72 
A1B21 H33 H33 H 0 1 N N N N N N 79.300 -42.066 -0.537 0.215  -2.231 1.687  H33 A1B21 73 
A1B21 H34 H34 H 0 1 N N N N N N 79.606 -39.790 0.562  1.346  -1.969 -0.525 H34 A1B21 74 
A1B21 H35 H35 H 0 1 N N N N N N 78.214 -38.659 0.655  0.375  -1.843 -2.012 H35 A1B21 75 
A1B21 H36 H36 H 0 1 N N N N N N 80.806 -46.967 -0.574 7.507  -1.480 -0.122 H36 A1B21 76 
A1B21 H37 H37 H 0 1 N N N N N N 80.042 -48.590 -0.664 8.749  -0.577 0.777  H37 A1B21 77 
A1B21 H38 H38 H 0 1 N N N N N N 80.851 -47.896 -2.110 7.042  -0.472 1.268  H38 A1B21 78 
A1B21 H39 H39 H 0 1 N N N N N N 77.965 -48.933 -1.993 8.854  1.913  0.605  H39 A1B21 79 
A1B21 H40 H40 H 0 1 N N N N N N 77.209 -47.557 -2.865 7.686  2.784  -0.418 H40 A1B21 80 
A1B21 H41 H41 H 0 1 N N N N N N 78.771 -48.235 -3.439 7.146  2.019  1.096  H41 A1B21 81 
A1B21 H42 H42 H 0 1 N N N N N N 79.765 -45.015 -1.726 8.265  -0.406 -2.247 H42 A1B21 82 
A1B21 H43 H43 H 0 1 N N N N N N 79.838 -45.912 -3.281 8.340  1.368  -2.370 H43 A1B21 83 
A1B21 H44 H44 H 0 1 N N N N N N 78.276 -45.234 -2.707 9.507  0.497  -1.347 H44 A1B21 84 
A1B21 H45 H45 H 0 1 N N N N N N 77.025 -46.458 1.859  3.668  0.731  -1.510 H45 A1B21 85 
A1B21 H46 H46 H 0 1 N N N N N N 78.156 -39.347 2.802  -3.413 -0.462 -0.503 H46 A1B21 86 
A1B21 H47 H47 H 0 1 N N N N N N 78.623 -47.137 0.430  5.958  0.604  -1.945 H47 A1B21 87 
A1B21 H48 H48 H 0 1 N N N N N N 76.286 -44.075 7.997  -7.208 4.061  -1.984 H48 A1B21 88 
A1B21 H49 H49 H 0 1 N N N N N N 75.855 -42.559 0.367  0.478  0.203  1.526  H49 A1B21 89 
A1B21 H50 H50 H 0 1 N N N N N N 76.781 -36.401 5.485  -4.399 -2.568 2.758  H50 A1B21 90 
# 
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 
A1B21 C28 C29 SING N N 1  
A1B21 C28 C27 SING N N 2  
A1B21 C38 C36 SING N N 3  
A1B21 C29 C30 SING N N 4  
A1B21 C29 C34 SING N N 5  
A1B21 C39 C36 SING N N 6  
A1B21 C27 C26 SING N N 7  
A1B21 C27 C32 SING N N 8  
A1B21 C30 C31 SING N N 9  
A1B21 C26 C31 SING N N 10 
A1B21 C36 C37 SING N N 11 
A1B21 C36 N2  SING N N 12 
A1B21 C31 C35 SING N N 13 
A1B21 O1  C3  DOUB N N 14 
A1B21 C34 C33 SING N N 15 
A1B21 C32 C33 SING N N 16 
A1B21 N2  C3  SING N N 17 
A1B21 C33 C35 SING N N 18 
A1B21 C33 C14 SING N N 19 
A1B21 C3  N11 SING N N 20 
A1B21 N4  C14 SING N N 21 
A1B21 N4  C12 SING N N 22 
A1B21 N11 C10 SING N N 23 
A1B21 C14 C13 SING N N 24 
A1B21 C10 C12 SING N N 25 
A1B21 C10 C9  SING N N 26 
A1B21 C6  C9  SING N N 27 
A1B21 C12 O5  DOUB N N 28 
A1B21 O19 C13 DOUB N N 29 
A1B21 C13 N15 SING N N 30 
A1B21 C9  C8  SING N N 31 
A1B21 C9  C7  SING N N 32 
A1B21 N15 C16 SING N N 33 
A1B21 C16 C17 SING N N 34 
A1B21 C16 C18 SING N N 35 
A1B21 C17 N40 DOUB N N 36 
A1B21 C18 C20 SING N N 37 
A1B21 C20 C21 SING N N 38 
A1B21 C20 C24 SING N N 39 
A1B21 C21 C22 SING N N 40 
A1B21 C24 O25 DOUB N N 41 
A1B21 C24 N23 SING N N 42 
A1B21 C22 N23 SING N N 43 
A1B21 C6  H1  SING N N 44 
A1B21 C6  H2  SING N N 45 
A1B21 C6  H3  SING N N 46 
A1B21 C7  H4  SING N N 47 
A1B21 C7  H5  SING N N 48 
A1B21 C7  H6  SING N N 49 
A1B21 C8  H7  SING N N 50 
A1B21 C8  H8  SING N N 51 
A1B21 C8  H9  SING N N 52 
A1B21 C10 H10 SING N N 53 
A1B21 C14 H11 SING N N 54 
A1B21 C16 H12 SING N N 55 
A1B21 C17 H13 SING N N 56 
A1B21 C18 H14 SING N N 57 
A1B21 C18 H15 SING N N 58 
A1B21 C20 H16 SING N N 59 
A1B21 C21 H17 SING N N 60 
A1B21 C21 H18 SING N N 61 
A1B21 C22 H19 SING N N 62 
A1B21 C22 H20 SING N N 63 
A1B21 C26 H21 SING N N 64 
A1B21 C26 H22 SING N N 65 
A1B21 C27 H23 SING N N 66 
A1B21 C28 H24 SING N N 67 
A1B21 C28 H25 SING N N 68 
A1B21 C29 H26 SING N N 69 
A1B21 C30 H27 SING N N 70 
A1B21 C30 H28 SING N N 71 
A1B21 C31 H29 SING N N 72 
A1B21 C32 H30 SING N N 73 
A1B21 C32 H31 SING N N 74 
A1B21 C34 H32 SING N N 75 
A1B21 C34 H33 SING N N 76 
A1B21 C35 H34 SING N N 77 
A1B21 C35 H35 SING N N 78 
A1B21 C37 H36 SING N N 79 
A1B21 C37 H37 SING N N 80 
A1B21 C37 H38 SING N N 81 
A1B21 C38 H39 SING N N 82 
A1B21 C38 H40 SING N N 83 
A1B21 C38 H41 SING N N 84 
A1B21 C39 H42 SING N N 85 
A1B21 C39 H43 SING N N 86 
A1B21 C39 H44 SING N N 87 
A1B21 N11 H45 SING N N 88 
A1B21 N15 H46 SING N N 89 
A1B21 N2  H47 SING N N 90 
A1B21 N23 H48 SING N N 91 
A1B21 N4  H49 SING N N 92 
A1B21 N40 H50 SING N N 93 
# 
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 
A1B21 SMILES           ACDLabs              14.52   "CC(C)(C)NC(=O)NC(C(=O)NC(C(=O)NC(CC1CCNC1=O)C=N)C12CC3CC(C1)CC(C3)C2)C(C)(C)C"                                                                                                                                                                                   
A1B21 InChI            InChI                1.06    "InChI=1S/C30H50N6O4/c1-28(2,3)22(35-27(40)36-29(4,5)6)25(38)34-23(30-13-17-9-18(14-30)11-19(10-17)15-30)26(39)33-21(16-31)12-20-7-8-32-24(20)37/h16-23,31H,7-15H2,1-6H3,(H,32,37)(H,33,39)(H,34,38)(H2,35,36,40)/b31-16-/t17-,18+,19-,20-,21-,22+,23+,30-/m0/s1" 
A1B21 InChIKey         InChI                1.06    WQRZJGAWMRCVBF-LIUVVVFXSA-N                                                                                                                                                                                                                                       
A1B21 SMILES_CANONICAL CACTVS               3.385   "CC(C)(C)NC(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](C[C@@H]1CCNC1=O)C=N)C23CC4CC(CC(C4)C2)C3)C(C)(C)C"                                                                                                                                                                 
A1B21 SMILES           CACTVS               3.385   "CC(C)(C)NC(=O)N[CH](C(=O)N[CH](C(=O)N[CH](C[CH]1CCNC1=O)C=N)C23CC4CC(CC(C4)C2)C3)C(C)(C)C"                                                                                                                                                                       
A1B21 SMILES_CANONICAL "OpenEye OEToolkits" 3.1.0.0 "[H]/N=C\[C@H](C[C@@H]1CCNC1=O)NC(=O)[C@H](C23CC4CC(C2)CC(C4)C3)NC(=O)[C@H](C(C)(C)C)NC(=O)NC(C)(C)C"                                                                                                                                                             
A1B21 SMILES           "OpenEye OEToolkits" 3.1.0.0 "CC(C)(C)C(C(=O)NC(C(=O)NC(CC1CCNC1=O)C=N)C23CC4CC(C2)CC(C4)C3)NC(=O)NC(C)(C)C"                                                                                                                                                                                   
# 
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 
A1B21 "SYSTEMATIC NAME" ACDLabs              14.52   "N-[(1S)-1-[(3R,5R,7R)-adamantan-1-yl]-2-({(1Z,2S)-1-imino-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}amino)-2-oxoethyl]-N~2~-(tert-butylcarbamoyl)-3-methyl-L-valinamide"                                      
A1B21 "SYSTEMATIC NAME" "OpenEye OEToolkits" 3.1.0.0 "(2~{S})-~{N}-[(1~{S})-1-(1-adamantyl)-2-[[(2~{S})-1-azanylidene-3-[(3~{S})-2-oxidanylidenepyrrolidin-3-yl]propan-2-yl]amino]-2-oxidanylidene-ethyl]-2-(~{tert}-butylcarbamoylamino)-3,3-dimethyl-butanamide" 
# 
loop_
_pdbx_chem_comp_audit.comp_id 
_pdbx_chem_comp_audit.action_type 
_pdbx_chem_comp_audit.date 
_pdbx_chem_comp_audit.processing_site 
A1B21 "Create component" 2025-03-21 RCSB 
A1B21 "Modify PCM"       2025-07-23 RCSB 
A1B21 "Initial release"  2025-07-30 RCSB 
# 
_pdbx_chem_comp_pcm.pcm_id                             1 
_pdbx_chem_comp_pcm.comp_id                            A1B21 
_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               C17 
_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      ? 
# 
