data_CEH
# 
_chem_comp.id                                    CEH 
_chem_comp.name                                  
;5-{3-(S)-(4-(R)-ACETYLAMINO-4-CARBOXY-BUTYRYLAMINO)-3-[1-(R)-(1-(R)-CARBOXY-ETHYLCARBAMOYL)-ETHYLCARBAMOYL]-PROPYL}-2-(
CARBOXY-PHENYLACETYLAMINO-METHYL)-3,6-DIHYDRO-2H-[1,3]THIAZINE-4-CARBOXYLIC ACID
;
_chem_comp.type                                  NON-POLYMER 
_chem_comp.pdbx_type                             HETAIN 
_chem_comp.formula                               "C32 H42 N6 O13 S" 
_chem_comp.mon_nstd_parent_comp_id               ? 
_chem_comp.pdbx_synonyms                         "CEPHALOSPORIN ANALOG" 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2001-01-09 
_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                        750.773 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     CEH 
_chem_comp.pdbx_model_coordinates_details        ? 
_chem_comp.pdbx_model_coordinates_missing_flag   N 
_chem_comp.pdbx_ideal_coordinates_details        "not provided" 
_chem_comp.pdbx_ideal_coordinates_missing_flag   Y 
_chem_comp.pdbx_model_coordinates_db_code        1HVB 
_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_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 
CEH S1   S1   S 0 1 N N N N N N 17.897 -12.335 41.370 ? ? ? S1   CEH 1  
CEH C1   C1   C 0 1 N N N N N N 17.995 -11.321 42.892 ? ? ? C1   CEH 2  
CEH C2   C2   C 0 1 N N N N N N 18.493 -10.101 42.644 ? ? ? C2   CEH 3  
CEH C3   C3   C 0 1 N N N N N N 18.435 -9.403  41.121 ? ? ? C3   CEH 4  
CEH N1   N1   N 0 1 N N N N N N 17.970 -9.851  40.226 ? ? ? N1   CEH 5  
CEH C4   C4   C 0 1 N N R N N N 17.246 -11.060 40.387 ? ? ? C4   CEH 6  
CEH C5   C5   C 0 1 N N N N N N 19.182 -9.365  43.717 ? ? ? C5   CEH 7  
CEH C6   C6   C 0 1 N N N N N N 19.067 -8.034  41.006 ? ? ? C6   CEH 8  
CEH O1   O1   O 0 1 N N N N N N 18.650 -7.267  40.126 ? ? ? O1   CEH 9  
CEH O2   O2   O 0 1 N N N N N N 20.008 -7.611  41.706 ? ? ? O2   CEH 10 
CEH O3   O3   O 0 1 N N N N N N 17.057 -9.891  37.255 ? ? ? O3   CEH 11 
CEH N2   N2   N 0 1 N N N N N N 17.986 -12.234 38.373 ? ? ? N2   CEH 12 
CEH C7   C7   C 0 1 N N R N N N 16.905 -11.633 38.984 ? ? ? C7   CEH 13 
CEH C8   C8   C 0 1 N N N N N N 16.399 -10.386 38.118 ? ? ? C8   CEH 14 
CEH C9   C9   C 0 1 N N N N N N 18.185 -13.584 38.012 ? ? ? C9   CEH 15 
CEH C10  C10  C 0 1 N N N N N N 19.199 -14.064 37.466 ? ? ? C10  CEH 16 
CEH C11  C11  C 0 1 Y N N N N N 20.058 -15.106 38.395 ? ? ? C11  CEH 17 
CEH C12  C12  C 0 1 Y N N N N N 19.456 -15.423 39.583 ? ? ? C12  CEH 18 
CEH C13  C13  C 0 1 Y N N N N N 20.114 -16.285 40.447 ? ? ? C13  CEH 19 
CEH C14  C14  C 0 1 Y N N N N N 21.347 -16.814 40.088 ? ? ? C14  CEH 20 
CEH C15  C15  C 0 1 Y N N N N N 21.899 -16.510 38.849 ? ? ? C15  CEH 21 
CEH C16  C16  C 0 1 Y N N N N N 21.273 -15.582 38.034 ? ? ? C16  CEH 22 
CEH O11  O11  O 0 1 N N N N N N 17.061 -14.281 38.387 ? ? ? O11  CEH 23 
CEH C17  C17  C 0 1 N N N N N N 20.463 -10.134 43.618 ? ? ? C17  CEH 24 
CEH C18  C18  C 0 1 N N S N N N 21.401 -10.179 44.795 ? ? ? C18  CEH 25 
CEH C19  C19  C 0 1 N N N N N N 22.511 -11.023 44.231 ? ? ? C19  CEH 26 
CEH N4   N4   N 0 1 N N N N N N 21.709 -8.817  45.254 ? ? ? N4   CEH 27 
CEH O4   O4   O 0 1 N N N N N N 22.403 -12.227 44.035 ? ? ? O4   CEH 28 
CEH N3   N3   N 0 1 N N N N N N 23.711 -10.387 43.897 ? ? ? N3   CEH 29 
CEH C24  C24  C 0 1 N N N N N N 22.355 -8.636  46.494 ? ? ? C24  CEH 30 
CEH O7   O7   O 0 1 N N N N N N 22.671 -9.772  46.899 ? ? ? O7   CEH 31 
CEH C20  C20  C 0 1 N N N N N N 22.366 -7.136  46.736 ? ? ? C20  CEH 32 
CEH C25  C25  C 0 1 N N N N N N 25.026 -14.173 39.326 ? ? ? C25  CEH 33 
CEH C27  C27  C 0 1 N N R N N N 24.692 -11.159 43.126 ? ? ? C27  CEH 34 
CEH C28  C28  C 0 1 N N N N N N 25.970 -10.314 43.147 ? ? ? C28  CEH 35 
CEH C29  C29  C 0 1 N N N N N N 24.161 -11.386 41.744 ? ? ? C29  CEH 36 
CEH O8   O8   O 0 1 N N N N N N 23.393 -10.642 41.239 ? ? ? O8   CEH 37 
CEH N6   N6   N 0 1 N N N N N N 24.670 -12.558 41.195 ? ? ? N6   CEH 38 
CEH C30  C30  C 0 1 N N R N N N 24.415 -12.841 39.799 ? ? ? C30  CEH 39 
CEH C31  C31  C 0 1 N N N N N N 25.134 -11.895 38.867 ? ? ? C31  CEH 40 
CEH O9   O9   O 0 1 N N N N N N 25.975 -11.099 39.337 ? ? ? O9   CEH 41 
CEH O10  O10  O 0 1 N N N N N N 24.877 -12.043 37.676 ? ? ? O10  CEH 42 
CEH C21  C21  C 0 1 N N N N N N 22.846 -6.811  48.166 ? ? ? C21  CEH 43 
CEH C22  C22  C 0 1 N N R N N N 22.780 -5.262  48.346 ? ? ? C22  CEH 44 
CEH C23  C23  C 0 1 N N N N N N 23.393 -4.682  47.036 ? ? ? C23  CEH 45 
CEH N5   N5   N 0 1 N N N N N N 23.446 -4.780  49.529 ? ? ? N5   CEH 46 
CEH C26  C26  C 0 1 N N N N N N 24.683 -4.258  49.742 ? ? ? C26  CEH 47 
CEH O5   O5   O 0 1 N N N N N N 24.465 -5.195  46.630 ? ? ? O5   CEH 48 
CEH O6   O6   O 0 1 N N N N N N 22.748 -3.752  46.502 ? ? ? O6   CEH 49 
CEH O13  O13  O 0 1 N Y N N N N 15.166 -10.048 38.458 ? ? ? O13  CEH 50 
CEH C32  C32  C 0 1 N N N N N N 24.802 -3.025  50.647 ? ? ? C32  CEH 51 
CEH O12  O12  O 0 1 N N N N N N 25.632 -5.018  49.827 ? ? ? O12  CEH 52 
CEH H11  1H1  H 0 1 N N N N N N 17.006 -11.260 43.404 ? ? ? H11  CEH 53 
CEH H12A 2H1  H 0 0 N N N N N N 18.573 -11.841 43.690 ? ? ? H12A CEH 54 
CEH HN1  HN1  H 0 1 N N N N N N 18.683 -9.981  39.508 ? ? ? HN1  CEH 55 
CEH H4   H4   H 0 1 N N N N N N 16.364 -10.728 40.983 ? ? ? H4   CEH 56 
CEH H51  1H5  H 0 1 N N N N N N 19.236 -8.254  43.631 ? ? ? H51  CEH 57 
CEH H52  2H5  H 0 1 N N N N N N 18.683 -9.314  44.713 ? ? ? H52  CEH 58 
CEH HO2  HO2  H 0 1 N N N N N N 20.405 -6.751  41.633 ? ? ? HO2  CEH 59 
CEH HN2  HN2  H 0 1 N N N N N N 18.745 -11.588 38.157 ? ? ? HN2  CEH 60 
CEH H7   H7   H 0 1 N N N N N N 16.133 -12.433 39.074 ? ? ? H7   CEH 61 
CEH H101 1H10 H 0 0 N N N N N N 18.923 -14.547 36.499 ? ? ? H101 CEH 62 
CEH H102 2H10 H 0 0 N N N N N N 19.859 -13.246 37.093 ? ? ? H102 CEH 63 
CEH H12  H12  H 0 1 N N N N N N 18.470 -14.996 39.836 ? ? ? H12  CEH 64 
CEH H13  H13  H 0 1 N N N N N N 19.658 -16.548 41.416 ? ? ? H13  CEH 65 
CEH H14  H14  H 0 1 N N N N N N 21.887 -17.475 40.786 ? ? ? H14  CEH 66 
CEH H15  H15  H 0 1 N N N N N N 22.827 -17.002 38.514 ? ? ? H15  CEH 67 
CEH H16  H16  H 0 1 N N N N N N 21.740 -15.223 37.101 ? ? ? H16  CEH 68 
CEH H171 1H17 H 0 0 N N N N N N 20.225 -11.180 43.314 ? ? ? H171 CEH 69 
CEH H172 2H17 H 0 0 N N N N N N 21.027 -9.768  42.729 ? ? ? H172 CEH 70 
CEH H18  H18  H 0 1 N N N N N N 21.034 -10.625 45.748 ? ? ? H18  CEH 71 
CEH HN4  HN4  H 0 1 N N N N N N 21.472 -7.989  44.706 ? ? ? HN4  CEH 72 
CEH HN3  HN3  H 0 1 N N N N N N 23.860 -9.423  44.196 ? ? ? HN3  CEH 73 
CEH H201 1H20 H 0 0 N N N N N N 22.969 -6.599  45.967 ? ? ? H201 CEH 74 
CEH H202 2H20 H 0 0 N N N N N N 21.372 -6.677  46.521 ? ? ? H202 CEH 75 
CEH H251 1H25 H 0 0 N N N N N N 24.829 -14.391 38.250 ? ? ? H251 CEH 76 
CEH H252 2H25 H 0 0 N N N N N N 26.119 -14.206 39.543 ? ? ? H252 CEH 77 
CEH H253 3H25 H 0 0 N N N N N N 24.683 -15.016 39.970 ? ? ? H253 CEH 78 
CEH H27  H27  H 0 1 N N N N N N 24.898 -12.171 43.545 ? ? ? H27  CEH 79 
CEH H281 1H28 H 0 0 N N N N N N 26.715 -10.900 42.561 ? ? ? H281 CEH 80 
CEH H282 2H28 H 0 0 N N N N N N 25.827 -9.271  42.779 ? ? ? H282 CEH 81 
CEH H283 3H28 H 0 0 N N N N N N 26.314 -10.042 44.172 ? ? ? H283 CEH 82 
CEH HN6  HN6  H 0 1 N N N N N N 25.208 -13.185 41.792 ? ? ? HN6  CEH 83 
CEH H30  H30  H 0 1 N N N N N N 23.301 -12.795 39.756 ? ? ? H30  CEH 84 
CEH HO10 HO10 H 0 0 N N N N N N 25.329 -11.447 37.089 ? ? ? HO10 CEH 85 
CEH H211 1H21 H 0 0 N N N N N N 22.277 -7.363  48.950 ? ? ? H211 CEH 86 
CEH H212 2H21 H 0 0 N N N N N N 23.853 -7.231  48.391 ? ? ? H212 CEH 87 
CEH H22  H22  H 0 1 N N N N N N 21.728 -4.927  48.503 ? ? ? H22  CEH 88 
CEH HN5  HN5  H 0 1 N N N N N N 22.928 -4.816  50.407 ? ? ? HN5  CEH 89 
CEH HO5  HO5  H 0 1 N N N N N N 24.838 -4.841  45.831 ? ? ? HO5  CEH 90 
CEH HO13 HO13 H 0 0 N N N N N N 14.641 -10.442 39.145 ? ? ? HO13 CEH 91 
CEH H321 1H32 H 0 0 N N N N N N 25.816 -2.596  50.821 ? ? ? H321 CEH 92 
CEH H322 2H32 H 0 0 N N N N N N 24.129 -2.223  50.261 ? ? ? H322 CEH 93 
CEH H323 3H32 H 0 0 N N N N N N 24.325 -3.247  51.630 ? ? ? H323 CEH 94 
# 
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 
CEH S1  C1   SING N N 1  
CEH S1  C4   SING N N 2  
CEH C1  C2   SING N N 3  
CEH C1  H11  SING N N 4  
CEH C1  H12A SING N N 5  
CEH C2  C3   DOUB N N 6  
CEH C2  C5   SING N N 7  
CEH C3  N1   SING N N 8  
CEH C3  C6   SING N N 9  
CEH N1  C4   SING N N 10 
CEH N1  HN1  SING N N 11 
CEH C4  C7   SING N N 12 
CEH C4  H4   SING N N 13 
CEH C5  C17  SING N N 14 
CEH C5  H51  SING N N 15 
CEH C5  H52  SING N N 16 
CEH C6  O1   DOUB N N 17 
CEH C6  O2   SING N N 18 
CEH O2  HO2  SING N N 19 
CEH O3  C8   DOUB N N 20 
CEH N2  C7   SING N N 21 
CEH N2  C9   SING N N 22 
CEH N2  HN2  SING N N 23 
CEH C7  C8   SING N N 24 
CEH C7  H7   SING N N 25 
CEH C8  O13  SING N N 26 
CEH C9  C10  SING N N 27 
CEH C9  O11  DOUB N N 28 
CEH C10 C11  SING N N 29 
CEH C10 H101 SING N N 30 
CEH C10 H102 SING N N 31 
CEH C11 C12  DOUB Y N 32 
CEH C11 C16  SING Y N 33 
CEH C12 C13  SING Y N 34 
CEH C12 H12  SING N N 35 
CEH C13 C14  DOUB Y N 36 
CEH C13 H13  SING N N 37 
CEH C14 C15  SING Y N 38 
CEH C14 H14  SING N N 39 
CEH C15 C16  DOUB Y N 40 
CEH C15 H15  SING N N 41 
CEH C16 H16  SING N N 42 
CEH C17 C18  SING N N 43 
CEH C17 H171 SING N N 44 
CEH C17 H172 SING N N 45 
CEH C18 C19  SING N N 46 
CEH C18 N4   SING N N 47 
CEH C18 H18  SING N N 48 
CEH C19 O4   DOUB N N 49 
CEH C19 N3   SING N N 50 
CEH N4  C24  SING N N 51 
CEH N4  HN4  SING N N 52 
CEH N3  C27  SING N N 53 
CEH N3  HN3  SING N N 54 
CEH C24 O7   DOUB N N 55 
CEH C24 C20  SING N N 56 
CEH C20 C21  SING N N 57 
CEH C20 H201 SING N N 58 
CEH C20 H202 SING N N 59 
CEH C25 C30  SING N N 60 
CEH C25 H251 SING N N 61 
CEH C25 H252 SING N N 62 
CEH C25 H253 SING N N 63 
CEH C27 C28  SING N N 64 
CEH C27 C29  SING N N 65 
CEH C27 H27  SING N N 66 
CEH C28 H281 SING N N 67 
CEH C28 H282 SING N N 68 
CEH C28 H283 SING N N 69 
CEH C29 O8   DOUB N N 70 
CEH C29 N6   SING N N 71 
CEH N6  C30  SING N N 72 
CEH N6  HN6  SING N N 73 
CEH C30 C31  SING N N 74 
CEH C30 H30  SING N N 75 
CEH C31 O9   DOUB N N 76 
CEH C31 O10  SING N N 77 
CEH O10 HO10 SING N N 78 
CEH C21 C22  SING N N 79 
CEH C21 H211 SING N N 80 
CEH C21 H212 SING N N 81 
CEH C22 C23  SING N N 82 
CEH C22 N5   SING N N 83 
CEH C22 H22  SING N N 84 
CEH C23 O5   SING N N 85 
CEH C23 O6   DOUB N N 86 
CEH N5  C26  SING N N 87 
CEH N5  HN5  SING N N 88 
CEH C26 C32  SING N N 89 
CEH C26 O12  DOUB N N 90 
CEH O5  HO5  SING N N 91 
CEH O13 HO13 SING N N 92 
CEH C32 H321 SING N N 93 
CEH C32 H322 SING N N 94 
CEH C32 H323 SING N N 95 
# 
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 
CEH SMILES           ACDLabs              10.04 "O=C(O)C(NC(=O)C(NC(=O)C(NC(=O)CCC(C(=O)O)NC(=O)C)CCC1=C(NC(SC1)C(NC(=O)Cc2ccccc2)C(=O)O)C(=O)O)C)C"                                                                                                                                                                                                                                       
CEH SMILES_CANONICAL CACTVS               3.341 "C[C@@H](NC(=O)[C@@H](C)NC(=O)[C@H](CCC1=C(N[C@H](SC1)[C@H](NC(=O)Cc2ccccc2)C(O)=O)C(O)=O)NC(=O)CC[C@@H](NC(C)=O)C(O)=O)C(O)=O"                                                                                                                                                                                                            
CEH SMILES           CACTVS               3.341 "C[CH](NC(=O)[CH](C)NC(=O)[CH](CCC1=C(N[CH](SC1)[CH](NC(=O)Cc2ccccc2)C(O)=O)C(O)=O)NC(=O)CC[CH](NC(C)=O)C(O)=O)C(O)=O"                                                                                                                                                                                                                     
CEH SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "C[C@H](C(=O)N[C@H](C)C(=O)O)NC(=O)[C@H](CCC1=C(N[C@H](SC1)[C@@H](C(=O)O)NC(=O)Cc2ccccc2)C(=O)O)NC(=O)CC[C@H](C(=O)O)NC(=O)C"                                                                                                                                                                                                              
CEH SMILES           "OpenEye OEToolkits" 1.5.0 "CC(C(=O)NC(C)C(=O)O)NC(=O)C(CCC1=C(NC(SC1)C(C(=O)O)NC(=O)Cc2ccccc2)C(=O)O)NC(=O)CCC(C(=O)O)NC(=O)C"                                                                                                                                                                                                                                       
CEH InChI            InChI                1.03  "InChI=1S/C32H42N6O13S/c1-15(26(42)34-16(2)29(44)45)33-27(43)20(36-22(40)12-11-21(30(46)47)35-17(3)39)10-9-19-14-52-28(38-24(19)31(48)49)25(32(50)51)37-23(41)13-18-7-5-4-6-8-18/h4-8,15-16,20-21,25,28,38H,9-14H2,1-3H3,(H,33,43)(H,34,42)(H,35,39)(H,36,40)(H,37,41)(H,44,45)(H,46,47)(H,48,49)(H,50,51)/t15-,16-,20+,21-,25+,28-/m1/s1" 
CEH InChIKey         InChI                1.03  PEUIVMLYMKXUBF-PULJXETJSA-N                                                                                                                                                                                                                                                                                                                
# 
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 
CEH "SYSTEMATIC NAME" ACDLabs              10.04 "N-{(2S)-2-[(N-acetyl-D-gamma-glutamyl)amino]-4-[(2R)-4-carboxy-2-{(R)-carboxy[(phenylacetyl)amino]methyl}-3,6-dihydro-2H-1,3-thiazin-5-yl]butanoyl}-D-alanyl-D-alanine"                                                                                              
CEH "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(2R)-5-[(3S)-3-[[(4R)-4-acetamido-5-hydroxy-5-oxo-pentanoyl]amino]-4-[[(2R)-1-[[(2R)-1-hydroxy-1-oxo-propan-2-yl]amino]-1-oxo-propan-2-yl]amino]-4-oxo-butyl]-2-[(1R)-2-hydroxy-2-oxo-1-(2-phenylethanoylamino)ethyl]-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid" 
# 
loop_
_pdbx_chem_comp_audit.comp_id 
_pdbx_chem_comp_audit.action_type 
_pdbx_chem_comp_audit.date 
_pdbx_chem_comp_audit.processing_site 
CEH "Create component"  2001-01-09 RCSB 
CEH "Modify descriptor" 2011-06-04 RCSB 
CEH "Modify synonyms"   2020-06-05 PDBE 
CEH "Modify PCM"        2024-09-27 PDBE 
# 
_pdbx_chem_comp_synonyms.ordinal      1 
_pdbx_chem_comp_synonyms.comp_id      CEH 
_pdbx_chem_comp_synonyms.name         "CEPHALOSPORIN ANALOG" 
_pdbx_chem_comp_synonyms.provenance   ? 
_pdbx_chem_comp_synonyms.type         ? 
# 
_pdbx_chem_comp_pcm.pcm_id                             1 
_pdbx_chem_comp_pcm.comp_id                            CEH 
_pdbx_chem_comp_pcm.modified_residue_id                SER 
_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               C8 
_pdbx_chem_comp_pcm.modified_residue_id_linking_atom   OG 
_pdbx_chem_comp_pcm.uniprot_specific_ptm_accession     ? 
_pdbx_chem_comp_pcm.uniprot_generic_ptm_accession      ? 
# 
