data_SAH
# 
_chem_comp.id                                    SAH 
_chem_comp.name                                  S-ADENOSYL-L-HOMOCYSTEINE 
_chem_comp.type                                  non-polymer 
_chem_comp.pdbx_type                             HETAIN 
_chem_comp.formula                               "C14 H20 N6 O5 S" 
_chem_comp.mon_nstd_parent_comp_id               ? 
_chem_comp.pdbx_synonyms                         ? 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     1999-07-08 
_chem_comp.pdbx_modified_date                    2024-09-16 
_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                        384.411 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     SAH 
_chem_comp.pdbx_model_coordinates_details        ? 
_chem_comp.pdbx_model_coordinates_missing_flag   N 
_chem_comp.pdbx_ideal_coordinates_details        ? 
_chem_comp.pdbx_ideal_coordinates_missing_flag   N 
_chem_comp.pdbx_model_coordinates_db_code        1VP9 
_chem_comp.pdbx_subcomponent_list                ? 
_chem_comp.pdbx_processing_site                  RCSB 
# 
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 
SAH N      N    N 0 1 N N N N N N -3.939 12.949 23.901 0.663  0.742  6.843  N      SAH 1  
SAH CA     CA   C 0 1 N N S N N N -4.200 11.982 24.960 -0.668 0.558  6.251  CA     SAH 2  
SAH CB     CB   C 0 1 N N N N N N -2.943 11.132 25.184 -0.553 -0.315 5.000  CB     SAH 3  
SAH CG     CG   C 0 1 N N N N N N -2.492 10.496 23.863 0.365  0.365  3.985  CG     SAH 4  
SAH SD     SD   S 0 1 N N N N N N -1.157 9.287  23.889 0.501  -0.669 2.501  SD     SAH 5  
SAH C      C    C 0 1 N N N N N N -4.719 12.651 26.250 -1.573 -0.112 7.251  C      SAH 6  
SAH O      O    O 0 1 N N N N N N -5.617 13.513 26.083 -1.112 -0.872 8.070  O      SAH 7  
SAH OXT    OXT  O 0 1 N Y N N N N -4.557 12.062 27.354 -2.893 0.132  7.232  OXT    SAH 8  
SAH "C5'"  C5*  C 0 1 N N N N N N -1.266 8.748  22.187 1.616  0.354  1.503  "C5'"  SAH 9  
SAH "C4'"  C4*  C 0 1 N N S N N N -2.548 8.017  21.888 1.883  -0.337 0.164  "C4'"  SAH 10 
SAH "O4'"  O4*  O 0 1 N N N N N N -2.591 7.839  20.440 0.652  -0.486 -0.561 "O4'"  SAH 11 
SAH "C3'"  C3*  C 0 1 N N S N N N -2.781 6.590  22.615 2.824  0.529  -0.694 "C3'"  SAH 12 
SAH "O3'"  O3*  O 0 1 N N N N N N -3.878 6.611  23.589 4.026  -0.179 -1.001 "O3'"  SAH 13 
SAH "C2'"  C2*  C 0 1 N N R N N N -3.023 5.688  21.355 2.009  0.800  -1.986 "C2'"  SAH 14 
SAH "O2'"  O2*  O 0 1 N N N N N N -3.902 4.527  21.448 2.844  0.710  -3.143 "O2'"  SAH 15 
SAH "C1'"  C1*  C 0 1 N N R N N N -3.483 6.739  20.313 0.970  -0.349 -1.963 "C1'"  SAH 16 
SAH N9     N9   N 0 1 Y N N N N N -3.468 6.341  18.914 -0.223 0.014  -2.730 N9     SAH 17 
SAH C8     C8   C 0 1 Y N N N N N -2.455 5.677  18.202 -1.297 0.715  -2.267 C8     SAH 18 
SAH N7     N7   N 0 1 Y N N N N N -2.858 5.266  17.036 -2.176 0.859  -3.215 N7     SAH 19 
SAH C5     C5   C 0 1 Y N N N N N -4.192 5.728  16.955 -1.724 0.261  -4.344 C5     SAH 20 
SAH C6     C6   C 0 1 Y N N N N N -5.166 5.614  15.968 -2.228 0.098  -5.645 C6     SAH 21 
SAH N6     N6   N 0 1 N N N N N N -4.869 5.106  14.769 -3.462 0.617  -5.997 N6     SAH 22 
SAH N1     N1   N 0 1 Y N N N N N -6.425 5.947  16.306 -1.493 -0.566 -6.531 N1     SAH 23 
SAH C2     C2   C 0 1 Y N N N N N -6.694 6.366  17.522 -0.314 -1.065 -6.204 C2     SAH 24 
SAH N3     N3   N 0 1 Y N N N N N -5.859 6.623  18.501 0.196  -0.936 -4.998 N3     SAH 25 
SAH C4     C4   C 0 1 Y N N N N N -4.599 6.290  18.133 -0.463 -0.283 -4.048 C4     SAH 26 
SAH HN1    1HN  H 0 1 N N N N N N -4.774 13.514 23.752 1.260  1.096  6.110  HN1    SAH 27 
SAH HN2    2HN  H 0 1 N N N N N N -3.612 12.505 23.042 1.006  -0.176 7.077  HN2    SAH 28 
SAH HA     HA   H 0 1 N N N N N N -5.026 11.304 24.641 -1.082 1.528  5.979  HA     SAH 29 
SAH HB1    1HB  H 0 1 N N N N N N -2.124 11.716 25.665 -0.139 -1.286 5.272  HB1    SAH 30 
SAH HB2    2HB  H 0 1 N N N N N N -3.092 10.369 25.983 -1.541 -0.452 4.561  HB2    SAH 31 
SAH HG1    1HG  H 0 1 N N N N N N -3.378 10.042 23.361 -0.048 1.336  3.713  HG1    SAH 32 
SAH HG2    2HG  H 0 1 N N N N N N -2.228 11.307 23.145 1.354  0.502  4.424  HG2    SAH 33 
SAH HXT    HXT  H 0 1 N Y N N N N -4.876 12.473 28.148 -3.474 -0.297 7.874  HXT    SAH 34 
SAH "H5'1" 1H5* H 0 0 N N N N N N -1.121 9.603  21.486 1.155  1.325  1.324  "H5'1" SAH 35 
SAH "H5'2" 2H5* H 0 0 N N N N N N -0.380 8.132  21.905 2.557  0.491  2.035  "H5'2" SAH 36 
SAH "H4'"  H4*  H 0 1 N N N N N N -3.369 8.644  22.305 2.333  -1.315 0.336  "H4'"  SAH 37 
SAH "H3'"  H3*  H 0 1 N N N N N N -1.945 6.236  23.263 3.052  1.464  -0.184 "H3'"  SAH 38 
SAH "HO3'" *HO3 H 0 0 N N N N N N -4.014 5.773  24.015 4.544  0.389  -1.587 "HO3'" SAH 39 
SAH "H2'"  H2*  H 0 1 N N N N N N -2.095 5.118  21.112 1.516  1.771  -1.940 "H2'"  SAH 40 
SAH "HO2'" *HO2 H 0 0 N N N N N N -4.048 3.980  20.684 3.465  1.449  -3.098 "HO2'" SAH 41 
SAH "H1'"  H1*  H 0 1 N N N N N N -4.554 6.943  20.542 1.407  -1.269 -2.349 "H1'"  SAH 42 
SAH H8     H8   H 0 1 N N N N N N -1.419 5.492  18.534 -1.402 1.095  -1.262 H8     SAH 43 
SAH HN61   1HN6 H 0 0 N N N N N N -5.583 5.022  14.045 -3.799 0.498  -6.899 HN61   SAH 44 
SAH HN62   2HN6 H 0 0 N N N N N N -4.448 4.187  14.908 -3.989 1.101  -5.343 HN62   SAH 45 
SAH H2     H2   H 0 1 N Y N N N N -7.761 6.522  17.751 0.250  -1.598 -6.954 H2     SAH 46 
# 
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 
SAH N     CA     SING N N 1  
SAH N     HN1    SING N N 2  
SAH N     HN2    SING N N 3  
SAH CA    CB     SING N N 4  
SAH CA    C      SING N N 5  
SAH CA    HA     SING N N 6  
SAH CB    CG     SING N N 7  
SAH CB    HB1    SING N N 8  
SAH CB    HB2    SING N N 9  
SAH CG    SD     SING N N 10 
SAH CG    HG1    SING N N 11 
SAH CG    HG2    SING N N 12 
SAH SD    "C5'"  SING N N 13 
SAH C     O      DOUB N N 14 
SAH C     OXT    SING N N 15 
SAH OXT   HXT    SING N N 16 
SAH "C5'" "C4'"  SING N N 17 
SAH "C5'" "H5'1" SING N N 18 
SAH "C5'" "H5'2" SING N N 19 
SAH "C4'" "O4'"  SING N N 20 
SAH "C4'" "C3'"  SING N N 21 
SAH "C4'" "H4'"  SING N N 22 
SAH "O4'" "C1'"  SING N N 23 
SAH "C3'" "O3'"  SING N N 24 
SAH "C3'" "C2'"  SING N N 25 
SAH "C3'" "H3'"  SING N N 26 
SAH "O3'" "HO3'" SING N N 27 
SAH "C2'" "O2'"  SING N N 28 
SAH "C2'" "C1'"  SING N N 29 
SAH "C2'" "H2'"  SING N N 30 
SAH "O2'" "HO2'" SING N N 31 
SAH "C1'" N9     SING N N 32 
SAH "C1'" "H1'"  SING N N 33 
SAH N9    C8     SING Y N 34 
SAH N9    C4     SING Y N 35 
SAH C8    N7     DOUB Y N 36 
SAH C8    H8     SING N N 37 
SAH N7    C5     SING Y N 38 
SAH C5    C6     SING Y N 39 
SAH C5    C4     DOUB Y N 40 
SAH C6    N6     SING N N 41 
SAH C6    N1     DOUB Y N 42 
SAH N6    HN61   SING N N 43 
SAH N6    HN62   SING N N 44 
SAH N1    C2     SING Y N 45 
SAH C2    N3     DOUB Y N 46 
SAH C2    H2     SING N N 47 
SAH N3    C4     SING Y N 48 
# 
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 
SAH SMILES           ACDLabs              10.04 "O=C(O)C(N)CCSCC3OC(n2cnc1c(ncnc12)N)C(O)C3O"                                                                                                                                   
SAH SMILES_CANONICAL CACTVS               3.341 "N[C@@H](CCSC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n2cnc3c(N)ncnc23)C(O)=O"                                                                                                             
SAH SMILES           CACTVS               3.341 "N[CH](CCSC[CH]1O[CH]([CH](O)[CH]1O)n2cnc3c(N)ncnc23)C(O)=O"                                                                                                                    
SAH SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CSCC[C@@H](C(=O)O)N)O)O)N"                                                                                                      
SAH SMILES           "OpenEye OEToolkits" 1.5.0 "c1nc(c2c(n1)n(cn2)C3C(C(C(O3)CSCCC(C(=O)O)N)O)O)N"                                                                                                                             
SAH InChI            InChI                1.03  "InChI=1S/C14H20N6O5S/c15-6(14(23)24)1-2-26-3-7-9(21)10(22)13(25-7)20-5-19-8-11(16)17-4-18-12(8)20/h4-7,9-10,13,21-22H,1-3,15H2,(H,23,24)(H2,16,17,18)/t6-,7+,9+,10+,13+/m0/s1" 
SAH InChIKey         InChI                1.03  ZJUKTBDSGOFHSH-WFMPWKQPSA-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 
SAH "SYSTEMATIC NAME" ACDLabs              10.04 "(2S)-2-amino-4-({[(2S,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl]methyl}sulfanyl)butanoic acid (non-preferred name)" 
SAH "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(2S)-2-amino-4-[[(2S,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxy-oxolan-2-yl]methylsulfanyl]butanoic 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 
SAH "Create component"   1999-07-08 RCSB 
SAH "Modify descriptor"  2011-06-04 RCSB 
SAH "Other modification" 2024-09-16 RCSB 
# 
