data_EP1
# 
_chem_comp.id                                    EP1 
_chem_comp.name                                  "3-[4-(2-HYDROXYETHYL)PIPERAZIN-1-YL]PROPANE-1-SULFONIC ACID" 
_chem_comp.type                                  NON-POLYMER 
_chem_comp.pdbx_type                             HETAIN 
_chem_comp.formula                               "C9 H20 N2 O4 S" 
_chem_comp.mon_nstd_parent_comp_id               ? 
_chem_comp.pdbx_synonyms                         ? 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2003-11-20 
_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                         ? 
_chem_comp.formula_weight                        252.331 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     EP1 
_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        1RJM 
_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 
EP1 O2S  O2S  O 0 1 N N N 12.889 5.991 117.829 -0.049 -1.388 -4.502 O2S  EP1 1  
EP1 S    S    S 0 1 N N N 13.266 6.548 116.521 0.410  -0.095 -4.132 S    EP1 2  
EP1 O3S  O3S  O 0 1 N N N 12.085 7.135 115.851 1.787  0.184  -3.922 O3S  EP1 3  
EP1 O1S  O1S  O 0 1 N N N 14.297 7.582 116.749 0.078  0.744  -5.357 O1S  EP1 4  
EP1 C11  C11  C 0 1 N N N 13.892 5.328 115.595 -0.626 0.636  -2.836 C11  EP1 5  
EP1 C10  C10  C 0 1 N N N 14.273 5.784 114.194 -0.401 -0.111 -1.520 C10  EP1 6  
EP1 C9   C9   C 0 1 N N N 13.751 4.744 113.198 -1.275 0.506  -0.427 C9   EP1 7  
EP1 N1   N1   N 0 1 N N N 14.432 4.854 111.904 -1.060 -0.211 0.835  N1   EP1 8  
EP1 C2   C2   C 0 1 N N N 13.550 4.835 110.745 0.326  0.051  1.239  C2   EP1 9  
EP1 C3   C3   C 0 1 N N N 14.239 4.939 109.387 0.588  -0.566 2.613  C3   EP1 10 
EP1 N4   N4   N 0 1 N N N 15.741 5.061 109.282 -0.274 0.072  3.614  N4   EP1 11 
EP1 C5   C5   C 0 1 N N N 16.553 5.058 110.532 -1.661 -0.190 3.211  C5   EP1 12 
EP1 C6   C6   C 0 1 N N N 15.891 4.956 111.903 -1.923 0.427  1.836  C6   EP1 13 
EP1 C7   C7   C 0 1 N N N 16.083 6.336 108.585 -0.058 -0.645 4.877  C7   EP1 14 
EP1 C8   C8   C 0 1 N N N 15.409 6.504 107.235 1.375  -0.413 5.357  C8   EP1 15 
EP1 O8   O8   O 0 1 N N N 15.733 5.399 106.428 1.589  0.984  5.561  O8   EP1 16 
EP1 H1S  H1S  H 0 1 N N N 14.541 7.942 115.904 0.607  0.395  -6.087 H1S  EP1 17 
EP1 H111 1H11 H 0 0 N N N 13.194 4.459 115.556 -1.675 0.560  -3.123 H111 EP1 18 
EP1 H112 2H11 H 0 0 N N N 14.757 4.843 116.106 -0.360 1.685  -2.708 H112 EP1 19 
EP1 H101 1H10 H 0 0 N N N 15.366 5.974 114.085 0.647  -0.034 -1.233 H101 EP1 20 
EP1 H102 2H10 H 0 0 N N N 13.918 6.816 113.965 -0.667 -1.160 -1.649 H102 EP1 21 
EP1 H91  1H9  H 0 1 N N N 12.644 4.807 113.084 -2.324 0.429  -0.714 H91  EP1 22 
EP1 H92  2H9  H 0 1 N N N 13.823 3.711 113.611 -1.010 1.555  -0.299 H92  EP1 23 
EP1 H21  1H2  H 0 1 N N N 12.778 5.633 110.842 1.006  -0.387 0.508  H21  EP1 24 
EP1 H22  2H2  H 0 1 N N N 12.903 3.928 110.775 0.492  1.127  1.287  H22  EP1 25 
EP1 H31  1H3  H 0 1 N N N 13.783 5.792 108.833 1.633  -0.415 2.885  H31  EP1 26 
EP1 H32  2H3  H 0 1 N N N 13.919 4.068 108.769 0.374  -1.634 2.577  H32  EP1 27 
EP1 H51  1H5  H 0 1 N N N 17.198 5.968 110.527 -1.827 -1.266 3.162  H51  EP1 28 
EP1 H52  2H5  H 0 1 N N N 17.308 4.241 110.451 -2.341 0.248  3.941  H52  EP1 29 
EP1 H61  1H6  H 0 1 N N N 16.330 4.104 112.473 -2.967 0.276  1.564  H61  EP1 30 
EP1 H62  2H6  H 0 1 N N N 16.211 5.812 112.543 -1.708 1.495  1.872  H62  EP1 31 
EP1 H71  1H7  H 0 1 N N N 17.188 6.443 108.486 -0.221 -1.711 4.721  H71  EP1 32 
EP1 H72  2H7  H 0 1 N N N 15.866 7.211 109.242 -0.757 -0.276 5.628  H72  EP1 33 
EP1 H81  1H8  H 0 1 N N N 15.663 7.475 106.750 2.074  -0.781 4.606  H81  EP1 34 
EP1 H82  2H8  H 0 1 N N N 14.308 6.659 107.324 1.535  -0.946 6.294  H82  EP1 35 
EP1 HO8  HO8  H 0 1 N N N 15.311 5.504 105.583 2.502  1.087  5.862  HO8  EP1 36 
# 
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 
EP1 O2S S    DOUB N N 1  
EP1 S   O3S  DOUB N N 2  
EP1 S   O1S  SING N N 3  
EP1 S   C11  SING N N 4  
EP1 O1S H1S  SING N N 5  
EP1 C11 C10  SING N N 6  
EP1 C11 H111 SING N N 7  
EP1 C11 H112 SING N N 8  
EP1 C10 C9   SING N N 9  
EP1 C10 H101 SING N N 10 
EP1 C10 H102 SING N N 11 
EP1 C9  N1   SING N N 12 
EP1 C9  H91  SING N N 13 
EP1 C9  H92  SING N N 14 
EP1 N1  C2   SING N N 15 
EP1 N1  C6   SING N N 16 
EP1 C2  C3   SING N N 17 
EP1 C2  H21  SING N N 18 
EP1 C2  H22  SING N N 19 
EP1 C3  N4   SING N N 20 
EP1 C3  H31  SING N N 21 
EP1 C3  H32  SING N N 22 
EP1 N4  C5   SING N N 23 
EP1 N4  C7   SING N N 24 
EP1 C5  C6   SING N N 25 
EP1 C5  H51  SING N N 26 
EP1 C5  H52  SING N N 27 
EP1 C6  H61  SING N N 28 
EP1 C6  H62  SING N N 29 
EP1 C7  C8   SING N N 30 
EP1 C7  H71  SING N N 31 
EP1 C7  H72  SING N N 32 
EP1 C8  O8   SING N N 33 
EP1 C8  H81  SING N N 34 
EP1 C8  H82  SING N N 35 
EP1 O8  HO8  SING N N 36 
# 
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 
EP1 SMILES           ACDLabs              10.04 "O=S(=O)(O)CCCN1CCN(CCO)CC1"                                                             
EP1 SMILES_CANONICAL CACTVS               3.341 "OCCN1CCN(CCC[S](O)(=O)=O)CC1"                                                           
EP1 SMILES           CACTVS               3.341 "OCCN1CCN(CCC[S](O)(=O)=O)CC1"                                                           
EP1 SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "C1CN(CCN1CCCS(=O)(=O)O)CCO"                                                             
EP1 SMILES           "OpenEye OEToolkits" 1.5.0 "C1CN(CCN1CCCS(=O)(=O)O)CCO"                                                             
EP1 InChI            InChI                1.03  "InChI=1S/C9H20N2O4S/c12-8-7-11-5-3-10(4-6-11)2-1-9-16(13,14)15/h12H,1-9H2,(H,13,14,15)" 
EP1 InChIKey         InChI                1.03  OWXMKDGYPWMGEB-UHFFFAOYSA-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 
EP1 "SYSTEMATIC NAME" ACDLabs              10.04 "3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic acid" 
EP1 "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "3-[4-(2-hydroxyethyl)piperazin-1-yl]propane-1-sulfonic 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 
EP1 "Create component"  2003-11-20 RCSB 
EP1 "Modify descriptor" 2011-06-04 RCSB 
# 
