data_H4B
# 
_chem_comp.id                                    H4B 
_chem_comp.name                                  5,6,7,8-TETRAHYDROBIOPTERIN 
_chem_comp.type                                  NON-POLYMER 
_chem_comp.pdbx_type                             HETAIN 
_chem_comp.formula                               "C9 H15 N5 O3" 
_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                    2011-06-04 
_chem_comp.pdbx_ambiguous_flag                   N 
_chem_comp.pdbx_release_status                   REL 
_chem_comp.pdbx_replaced_by                      ? 
_chem_comp.pdbx_replaces                         BH4 
_chem_comp.formula_weight                        241.247 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     H4B 
_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        1NSE 
_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.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 
H4B N1   N1   N 0 1 Y N N 2.539 6.932  56.301 -1.207 0.564  -2.216 N1   H4B 1  
H4B C2   C2   C 0 1 Y N N 1.986 7.046  57.527 -0.213 0.636  -3.075 C2   H4B 2  
H4B N2   N2   N 0 1 N N N 2.205 8.118  58.262 -0.406 1.285  -4.269 N2   H4B 3  
H4B N3   N3   N 0 1 Y N N 1.248 6.036  58.025 1.000  0.082  -2.809 N3   H4B 4  
H4B C4   C4   C 0 1 Y N N 1.009 4.850  57.299 1.211  -0.562 -1.641 C4   H4B 5  
H4B O4   O4   O 0 1 N N N 0.315 3.974  57.795 2.297  -1.064 -1.392 O4   H4B 6  
H4B C4A  C4A  C 0 1 Y N N 1.633 4.784  56.047 0.158  -0.642 -0.723 C4A  H4B 7  
H4B C8A  C8A  C 0 1 Y N N 2.354 5.824  55.514 -1.059 -0.059 -1.041 C8A  H4B 8  
H4B N5   N5   N 0 1 N N N 1.442 3.558  55.295 0.326  -1.306 0.512  N5   H4B 9  
H4B N8   N8   N 0 1 N N N 2.995 5.754  54.355 -2.112 -0.125 -0.142 N8   H4B 10 
H4B C6   C6   C 0 1 N N R 2.531 3.325  54.286 -0.662 -1.066 1.575  C6   H4B 11 
H4B C7   C7   C 0 1 N N N 2.836 4.587  53.500 -2.061 -1.113 0.944  C7   H4B 12 
H4B C9   C9   C 0 1 N N R 2.055 2.165  53.397 -0.423 0.308  2.202  C9   H4B 13 
H4B O9   O9   O 0 1 N N N 0.823 2.458  52.747 -1.396 0.542  3.223  O9   H4B 14 
H4B C10  C10  C 0 1 N N S 3.086 1.829  52.333 0.978  0.353  2.814  C10  H4B 15 
H4B C11  C11  C 0 1 N N N 2.795 0.528  51.682 1.217  1.728  3.441  C11  H4B 16 
H4B O10  O10  O 0 1 N N N 4.342 1.848  53.010 1.951  0.119  1.793  O10  H4B 17 
H4B HN21 1HN2 H 0 0 N N N 1.787 8.204  59.188 -1.267 1.683  -4.471 HN21 H4B 18 
H4B HN22 2HN2 H 0 0 N N N 1.944 8.939  57.715 0.318  1.345  -4.911 HN22 H4B 19 
H4B HN3  HN3  H 0 1 N N N 0.866 6.170  58.961 1.717  0.151  -3.460 HN3  H4B 20 
H4B HN5  HN5  H 0 1 N N N 0.522 3.537  54.853 1.074  -1.907 0.655  HN5  H4B 21 
H4B HN8  HN8  H 0 1 N N N 3.990 5.891  54.529 -2.872 0.471  -0.229 HN8  H4B 22 
H4B H6   H6   H 0 1 N N N 3.495 3.056  54.777 -0.576 -1.839 2.339  H6   H4B 23 
H4B H71  1H7  H 0 1 N N N 2.063 4.767  52.716 -2.251 -2.109 0.545  H71  H4B 24 
H4B H72  2H7  H 0 1 N N N 3.727 4.445  52.845 -2.811 -0.870 1.697  H72  H4B 25 
H4B H9   H9   H 0 1 N N N 1.910 1.294  54.078 -0.509 1.077  1.435  H9   H4B 26 
H4B HO9  HO9  H 0 1 N N N 0.528 1.741  52.197 -1.285 -0.158 3.880  HO9  H4B 27 
H4B H10  H10  H 0 1 N N N 3.079 2.562  51.493 1.065  -0.415 3.581  H10  H4B 28 
H4B H111 1H11 H 0 0 N N N 3.551 0.281  50.901 2.216  1.760  3.876  H111 H4B 29 
H4B H112 2H11 H 0 0 N N N 2.702 -0.291 52.432 1.130  2.497  2.673  H112 H4B 30 
H4B H113 3H11 H 0 0 N N N 1.759 0.502  51.268 0.475  1.906  4.219  H113 H4B 31 
H4B HO0  HO0  H 0 1 N N N 4.986 1.637  52.344 1.840  0.820  1.136  HO0  H4B 32 
# 
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 
H4B N1  C2   DOUB Y N 1  
H4B N1  C8A  SING Y N 2  
H4B C2  N2   SING N N 3  
H4B C2  N3   SING Y N 4  
H4B N2  HN21 SING N N 5  
H4B N2  HN22 SING N N 6  
H4B N3  C4   SING Y N 7  
H4B N3  HN3  SING N N 8  
H4B C4  O4   DOUB N N 9  
H4B C4  C4A  SING Y N 10 
H4B C4A C8A  DOUB Y N 11 
H4B C4A N5   SING N N 12 
H4B C8A N8   SING N N 13 
H4B N5  C6   SING N N 14 
H4B N5  HN5  SING N N 15 
H4B N8  C7   SING N N 16 
H4B N8  HN8  SING N N 17 
H4B C6  C7   SING N N 18 
H4B C6  C9   SING N N 19 
H4B C6  H6   SING N N 20 
H4B C7  H71  SING N N 21 
H4B C7  H72  SING N N 22 
H4B C9  O9   SING N N 23 
H4B C9  C10  SING N N 24 
H4B C9  H9   SING N N 25 
H4B O9  HO9  SING N N 26 
H4B C10 C11  SING N N 27 
H4B C10 O10  SING N N 28 
H4B C10 H10  SING N N 29 
H4B C11 H111 SING N N 30 
H4B C11 H112 SING N N 31 
H4B C11 H113 SING N N 32 
H4B O10 HO0  SING N N 33 
# 
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 
H4B SMILES           ACDLabs              10.04 "O=C1C=2NC(CNC=2N=C(N1)N)C(O)C(O)C"                                                                                              
H4B SMILES_CANONICAL CACTVS               3.341 "C[C@H](O)[C@H](O)[C@H]1CNC2=C(N1)C(=O)NC(=N2)N"                                                                                 
H4B SMILES           CACTVS               3.341 "C[CH](O)[CH](O)[CH]1CNC2=C(N1)C(=O)NC(=N2)N"                                                                                    
H4B SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "C[C@@H]([C@@H]([C@H]1CNC2=C(N1)C(=O)NC(=N2)N)O)O"                                                                               
H4B SMILES           "OpenEye OEToolkits" 1.5.0 "CC(C(C1CNC2=C(N1)C(=O)NC(=N2)N)O)O"                                                                                             
H4B InChI            InChI                1.03  "InChI=1S/C9H15N5O3/c1-3(15)6(16)4-2-11-7-5(12-4)8(17)14-9(10)13-7/h3-4,6,12,15-16H,2H2,1H3,(H4,10,11,13,14,17)/t3-,4+,6-/m0/s1" 
H4B InChIKey         InChI                1.03  FNKQXYHWGSIFBK-RPDRRWSUSA-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 
H4B "SYSTEMATIC NAME" ACDLabs              10.04 "(6R)-2-amino-6-[(1R,2S)-1,2-dihydroxypropyl]-5,6,7,8-tetrahydropteridin-4(3H)-one" 
H4B "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(6R)-2-amino-6-[(1R,2S)-1,2-dihydroxypropyl]-5,6,7,8-tetrahydro-3H-pteridin-4-one" 
# 
loop_
_pdbx_chem_comp_audit.comp_id 
_pdbx_chem_comp_audit.action_type 
_pdbx_chem_comp_audit.date 
_pdbx_chem_comp_audit.processing_site 
H4B "Create component"  1999-07-08 RCSB 
H4B "Modify descriptor" 2011-06-04 RCSB 
# 
