data_1FIX
# 
_entry.id   1FIX 
# 
_audit_conform.dict_name       mmcif_pdbx.dic 
_audit_conform.dict_version    5.389 
_audit_conform.dict_location   http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 
# 
loop_
_database_2.database_id 
_database_2.database_code 
_database_2.pdbx_database_accession 
_database_2.pdbx_DOI 
PDB   1FIX         pdb_00001fix 10.2210/pdb1fix/pdb 
RCSB  UHJ055       ?            ?                   
WWPDB D_1000173305 ?            ?                   
# 
loop_
_pdbx_audit_revision_history.ordinal 
_pdbx_audit_revision_history.data_content_type 
_pdbx_audit_revision_history.major_revision 
_pdbx_audit_revision_history.minor_revision 
_pdbx_audit_revision_history.revision_date 
1 'Structure model' 1 0 1996-12-11 
2 'Structure model' 1 1 2008-05-22 
3 'Structure model' 1 2 2011-07-13 
4 'Structure model' 1 3 2024-02-07 
5 'Structure model' 1 4 2024-04-03 
# 
_pdbx_audit_revision_details.ordinal             1 
_pdbx_audit_revision_details.revision_ordinal    1 
_pdbx_audit_revision_details.data_content_type   'Structure model' 
_pdbx_audit_revision_details.provider            repository 
_pdbx_audit_revision_details.type                'Initial release' 
_pdbx_audit_revision_details.description         ? 
_pdbx_audit_revision_details.details             ? 
# 
loop_
_pdbx_audit_revision_group.ordinal 
_pdbx_audit_revision_group.revision_ordinal 
_pdbx_audit_revision_group.data_content_type 
_pdbx_audit_revision_group.group 
1 2 'Structure model' 'Version format compliance' 
2 3 'Structure model' 'Version format compliance' 
3 4 'Structure model' 'Data collection'           
4 4 'Structure model' 'Database references'       
5 5 'Structure model' 'Refinement description'    
# 
loop_
_pdbx_audit_revision_category.ordinal 
_pdbx_audit_revision_category.revision_ordinal 
_pdbx_audit_revision_category.data_content_type 
_pdbx_audit_revision_category.category 
1 4 'Structure model' chem_comp_atom                
2 4 'Structure model' chem_comp_bond                
3 4 'Structure model' database_2                    
4 5 'Structure model' pdbx_initial_refinement_model 
# 
loop_
_pdbx_audit_revision_item.ordinal 
_pdbx_audit_revision_item.revision_ordinal 
_pdbx_audit_revision_item.data_content_type 
_pdbx_audit_revision_item.item 
1 4 'Structure model' '_database_2.pdbx_DOI'                
2 4 'Structure model' '_database_2.pdbx_database_accession' 
# 
_pdbx_database_status.status_code                     REL 
_pdbx_database_status.entry_id                        1FIX 
_pdbx_database_status.recvd_initial_deposition_date   1996-10-24 
_pdbx_database_status.deposit_site                    NDB 
_pdbx_database_status.process_site                    NDB 
_pdbx_database_status.status_code_sf                  REL 
_pdbx_database_status.status_code_mr                  ? 
_pdbx_database_status.SG_entry                        ? 
_pdbx_database_status.pdb_format_compatible           Y 
_pdbx_database_status.status_code_cs                  ? 
_pdbx_database_status.status_code_nmr_data            ? 
_pdbx_database_status.methods_development_category    ? 
# 
loop_
_audit_author.name 
_audit_author.pdbx_ordinal 
'Horton, N.C.' 1 
'Finzel, B.C.' 2 
# 
_citation.id                        primary 
_citation.title                     
'The structure of an RNA/DNA hybrid: a substrate of the ribonuclease activity of HIV-1 reverse transcriptase.' 
_citation.journal_abbrev            J.Mol.Biol. 
_citation.journal_volume            264 
_citation.page_first                521 
_citation.page_last                 533 
_citation.year                      1996 
_citation.journal_id_ASTM           JMOBAK 
_citation.country                   UK 
_citation.journal_id_ISSN           0022-2836 
_citation.journal_id_CSD            0070 
_citation.book_publisher            ? 
_citation.pdbx_database_id_PubMed   8969302 
_citation.pdbx_database_id_DOI      10.1006/jmbi.1996.0658 
# 
loop_
_citation_author.citation_id 
_citation_author.name 
_citation_author.ordinal 
_citation_author.identifier_ORCID 
primary 'Horton, N.C.' 1 ? 
primary 'Finzel, B.C.' 2 ? 
# 
loop_
_entity.id 
_entity.type 
_entity.src_method 
_entity.pdbx_description 
_entity.formula_weight 
_entity.pdbx_number_of_molecules 
_entity.pdbx_ec 
_entity.pdbx_mutation 
_entity.pdbx_fragment 
_entity.details 
1 polymer syn 
;RNA (5'-R(*UP*UP*CP*GP*GP*GP*CP*GP*CP*C)-3')
;
3168.925 1  ? ? ? ? 
2 polymer syn 
;DNA (5'-D(*GP*GP*CP*GP*CP*CP*CP*GP*AP*A)-3')
;
3055.006 1  ? ? ? ? 
3 water   nat water                                          18.015   72 ? ? ? ? 
# 
loop_
_entity_poly.entity_id 
_entity_poly.type 
_entity_poly.nstd_linkage 
_entity_poly.nstd_monomer 
_entity_poly.pdbx_seq_one_letter_code 
_entity_poly.pdbx_seq_one_letter_code_can 
_entity_poly.pdbx_strand_id 
_entity_poly.pdbx_target_identifier 
1 polyribonucleotide      no no UUCGGGCGCC                                 UUCGGGCGCC A ? 
2 polydeoxyribonucleotide no no '(DG)(DG)(DC)(DG)(DC)(DC)(DC)(DG)(DA)(DA)' GGCGCCCGAA B ? 
# 
_pdbx_entity_nonpoly.entity_id   3 
_pdbx_entity_nonpoly.name        water 
_pdbx_entity_nonpoly.comp_id     HOH 
# 
loop_
_entity_poly_seq.entity_id 
_entity_poly_seq.num 
_entity_poly_seq.mon_id 
_entity_poly_seq.hetero 
1 1  U  n 
1 2  U  n 
1 3  C  n 
1 4  G  n 
1 5  G  n 
1 6  G  n 
1 7  C  n 
1 8  G  n 
1 9  C  n 
1 10 C  n 
2 1  DG n 
2 2  DG n 
2 3  DC n 
2 4  DG n 
2 5  DC n 
2 6  DC n 
2 7  DC n 
2 8  DG n 
2 9  DA n 
2 10 DA n 
# 
loop_
_chem_comp.id 
_chem_comp.type 
_chem_comp.mon_nstd_flag 
_chem_comp.name 
_chem_comp.pdbx_synonyms 
_chem_comp.formula 
_chem_comp.formula_weight 
C   'RNA linking' y "CYTIDINE-5'-MONOPHOSPHATE"          ? 'C9 H14 N3 O8 P'  323.197 
DA  'DNA linking' y "2'-DEOXYADENOSINE-5'-MONOPHOSPHATE" ? 'C10 H14 N5 O6 P' 331.222 
DC  'DNA linking' y "2'-DEOXYCYTIDINE-5'-MONOPHOSPHATE"  ? 'C9 H14 N3 O7 P'  307.197 
DG  'DNA linking' y "2'-DEOXYGUANOSINE-5'-MONOPHOSPHATE" ? 'C10 H14 N5 O7 P' 347.221 
G   'RNA linking' y "GUANOSINE-5'-MONOPHOSPHATE"         ? 'C10 H14 N5 O8 P' 363.221 
HOH non-polymer   . WATER                                ? 'H2 O'            18.015  
U   'RNA linking' y "URIDINE-5'-MONOPHOSPHATE"           ? 'C9 H13 N2 O9 P'  324.181 
# 
loop_
_pdbx_poly_seq_scheme.asym_id 
_pdbx_poly_seq_scheme.entity_id 
_pdbx_poly_seq_scheme.seq_id 
_pdbx_poly_seq_scheme.mon_id 
_pdbx_poly_seq_scheme.ndb_seq_num 
_pdbx_poly_seq_scheme.pdb_seq_num 
_pdbx_poly_seq_scheme.auth_seq_num 
_pdbx_poly_seq_scheme.pdb_mon_id 
_pdbx_poly_seq_scheme.auth_mon_id 
_pdbx_poly_seq_scheme.pdb_strand_id 
_pdbx_poly_seq_scheme.pdb_ins_code 
_pdbx_poly_seq_scheme.hetero 
A 1 1  U  1  1  1  U  U A . n 
A 1 2  U  2  2  2  U  U A . n 
A 1 3  C  3  3  3  C  C A . n 
A 1 4  G  4  4  4  G  G A . n 
A 1 5  G  5  5  5  G  G A . n 
A 1 6  G  6  6  6  G  G A . n 
A 1 7  C  7  7  7  C  C A . n 
A 1 8  G  8  8  8  G  G A . n 
A 1 9  C  9  9  9  C  C A . n 
A 1 10 C  10 10 10 C  C A . n 
B 2 1  DG 1  11 11 DG G B . n 
B 2 2  DG 2  12 12 DG G B . n 
B 2 3  DC 3  13 13 DC C B . n 
B 2 4  DG 4  14 14 DG G B . n 
B 2 5  DC 5  15 15 DC C B . n 
B 2 6  DC 6  16 16 DC C B . n 
B 2 7  DC 7  17 17 DC C B . n 
B 2 8  DG 8  18 18 DG G B . n 
B 2 9  DA 9  19 19 DA A B . n 
B 2 10 DA 10 20 20 DA A B . n 
# 
loop_
_pdbx_nonpoly_scheme.asym_id 
_pdbx_nonpoly_scheme.entity_id 
_pdbx_nonpoly_scheme.mon_id 
_pdbx_nonpoly_scheme.ndb_seq_num 
_pdbx_nonpoly_scheme.pdb_seq_num 
_pdbx_nonpoly_scheme.auth_seq_num 
_pdbx_nonpoly_scheme.pdb_mon_id 
_pdbx_nonpoly_scheme.auth_mon_id 
_pdbx_nonpoly_scheme.pdb_strand_id 
_pdbx_nonpoly_scheme.pdb_ins_code 
C 3 HOH 1  21 21 HOH HOH A . 
C 3 HOH 2  22 22 HOH HOH A . 
C 3 HOH 3  23 23 HOH HOH A . 
C 3 HOH 4  24 24 HOH HOH A . 
C 3 HOH 5  25 25 HOH HOH A . 
C 3 HOH 6  26 26 HOH HOH A . 
C 3 HOH 7  27 27 HOH HOH A . 
C 3 HOH 8  28 28 HOH HOH A . 
C 3 HOH 9  29 29 HOH HOH A . 
C 3 HOH 10 31 31 HOH HOH A . 
C 3 HOH 11 32 32 HOH HOH A . 
C 3 HOH 12 33 33 HOH HOH A . 
C 3 HOH 13 34 34 HOH HOH A . 
C 3 HOH 14 35 35 HOH HOH A . 
C 3 HOH 15 36 36 HOH HOH A . 
C 3 HOH 16 37 37 HOH HOH A . 
C 3 HOH 17 38 38 HOH HOH A . 
C 3 HOH 18 40 40 HOH HOH A . 
C 3 HOH 19 41 41 HOH HOH A . 
C 3 HOH 20 54 54 HOH HOH A . 
C 3 HOH 21 56 56 HOH HOH A . 
C 3 HOH 22 58 58 HOH HOH A . 
C 3 HOH 23 59 59 HOH HOH A . 
C 3 HOH 24 60 60 HOH HOH A . 
C 3 HOH 25 61 61 HOH HOH A . 
C 3 HOH 26 62 62 HOH HOH A . 
C 3 HOH 27 64 64 HOH HOH A . 
C 3 HOH 28 68 68 HOH HOH A . 
C 3 HOH 29 71 71 HOH HOH A . 
C 3 HOH 30 72 72 HOH HOH A . 
C 3 HOH 31 73 73 HOH HOH A . 
C 3 HOH 32 75 75 HOH HOH A . 
C 3 HOH 33 76 76 HOH HOH A . 
C 3 HOH 34 78 78 HOH HOH A . 
C 3 HOH 35 80 80 HOH HOH A . 
C 3 HOH 36 82 82 HOH HOH A . 
C 3 HOH 37 83 83 HOH HOH A . 
C 3 HOH 38 84 84 HOH HOH A . 
C 3 HOH 39 85 85 HOH HOH A . 
C 3 HOH 40 86 86 HOH HOH A . 
C 3 HOH 41 88 88 HOH HOH A . 
C 3 HOH 42 89 89 HOH HOH A . 
C 3 HOH 43 90 90 HOH HOH A . 
C 3 HOH 44 91 91 HOH HOH A . 
C 3 HOH 45 92 92 HOH HOH A . 
D 3 HOH 1  30 30 HOH HOH B . 
D 3 HOH 2  39 39 HOH HOH B . 
D 3 HOH 3  42 42 HOH HOH B . 
D 3 HOH 4  43 43 HOH HOH B . 
D 3 HOH 5  44 44 HOH HOH B . 
D 3 HOH 6  45 45 HOH HOH B . 
D 3 HOH 7  46 46 HOH HOH B . 
D 3 HOH 8  47 47 HOH HOH B . 
D 3 HOH 9  48 48 HOH HOH B . 
D 3 HOH 10 49 49 HOH HOH B . 
D 3 HOH 11 50 50 HOH HOH B . 
D 3 HOH 12 51 51 HOH HOH B . 
D 3 HOH 13 52 52 HOH HOH B . 
D 3 HOH 14 53 53 HOH HOH B . 
D 3 HOH 15 55 55 HOH HOH B . 
D 3 HOH 16 57 57 HOH HOH B . 
D 3 HOH 17 63 63 HOH HOH B . 
D 3 HOH 18 65 65 HOH HOH B . 
D 3 HOH 19 66 66 HOH HOH B . 
D 3 HOH 20 67 67 HOH HOH B . 
D 3 HOH 21 69 69 HOH HOH B . 
D 3 HOH 22 70 70 HOH HOH B . 
D 3 HOH 23 74 74 HOH HOH B . 
D 3 HOH 24 77 77 HOH HOH B . 
D 3 HOH 25 79 79 HOH HOH B . 
D 3 HOH 26 81 81 HOH HOH B . 
D 3 HOH 27 87 87 HOH HOH B . 
# 
loop_
_software.name 
_software.classification 
_software.version 
_software.citation_id 
_software.pdbx_ordinal 
XTAL   'model building' . ? 1 
X-PLOR refinement       . ? 2 
XENGEN 'data reduction' . ? 3 
XENGEN 'data scaling'   . ? 4 
XTAL   phasing          . ? 5 
# 
_cell.entry_id           1FIX 
_cell.length_a           31.300 
_cell.length_b           31.300 
_cell.length_c           137.700 
_cell.angle_alpha        90.00 
_cell.angle_beta         90.00 
_cell.angle_gamma        90.00 
_cell.Z_PDB              8 
_cell.pdbx_unique_axis   ? 
_cell.length_a_esd       ? 
_cell.length_b_esd       ? 
_cell.length_c_esd       ? 
_cell.angle_alpha_esd    ? 
_cell.angle_beta_esd     ? 
_cell.angle_gamma_esd    ? 
# 
_symmetry.entry_id                         1FIX 
_symmetry.space_group_name_H-M             'P 43 2 2' 
_symmetry.pdbx_full_space_group_name_H-M   ? 
_symmetry.cell_setting                     ? 
_symmetry.Int_Tables_number                95 
_symmetry.space_group_name_Hall            ? 
# 
_exptl.entry_id          1FIX 
_exptl.method            'X-RAY DIFFRACTION' 
_exptl.crystals_number   1 
# 
_exptl_crystal.id                    1 
_exptl_crystal.density_meas          ? 
_exptl_crystal.density_Matthews      2.64 
_exptl_crystal.density_percent_sol   46.5000 
_exptl_crystal.description           ? 
_exptl_crystal.F_000                 ? 
_exptl_crystal.preparation           ? 
# 
_exptl_crystal_grow.crystal_id      1 
_exptl_crystal_grow.method          'VAPOR DIFFUSION, HANGING DROP' 
_exptl_crystal_grow.temp            ? 
_exptl_crystal_grow.temp_details    'ROOM TEMPERATURE' 
_exptl_crystal_grow.pH              4.50 
_exptl_crystal_grow.pdbx_details    'pH 4.50, VAPOR DIFFUSION, HANGING DROP' 
_exptl_crystal_grow.pdbx_pH_range   ? 
# 
loop_
_exptl_crystal_grow_comp.crystal_id 
_exptl_crystal_grow_comp.id 
_exptl_crystal_grow_comp.sol_id 
_exptl_crystal_grow_comp.name 
_exptl_crystal_grow_comp.volume 
_exptl_crystal_grow_comp.conc 
_exptl_crystal_grow_comp.details 
1 1 1 WATER        ? ? ? 
1 2 1 MPD          ? ? ? 
1 3 1 CACL2        ? ? ? 
1 4 1 'NA ACETATE' ? ? ? 
# 
_diffrn.id                     1 
_diffrn.ambient_temp           ? 
_diffrn.ambient_temp_details   'ROOM TEMPERATURE' 
_diffrn.crystal_id             1 
# 
_diffrn_detector.diffrn_id              1 
_diffrn_detector.detector               'AREA DETECTOR' 
_diffrn_detector.type                   SIEMENS 
_diffrn_detector.pdbx_collection_date   1994-10-01 
_diffrn_detector.details                ? 
# 
_diffrn_radiation.diffrn_id                        1 
_diffrn_radiation.wavelength_id                    1 
_diffrn_radiation.pdbx_monochromatic_or_laue_m_l   M 
_diffrn_radiation.monochromator                    ? 
_diffrn_radiation.pdbx_diffrn_protocol             ? 
_diffrn_radiation.pdbx_scattering_type             x-ray 
# 
_diffrn_radiation_wavelength.id           1 
_diffrn_radiation_wavelength.wavelength   . 
_diffrn_radiation_wavelength.wt           1.0 
# 
_diffrn_source.diffrn_id                   1 
_diffrn_source.source                      ? 
_diffrn_source.type                        ? 
_diffrn_source.pdbx_synchrotron_site       ? 
_diffrn_source.pdbx_synchrotron_beamline   ? 
_diffrn_source.pdbx_wavelength             ? 
_diffrn_source.pdbx_wavelength_list        ? 
# 
_reflns.entry_id                     1FIX 
_reflns.observed_criterion_sigma_I   2.000 
_reflns.observed_criterion_sigma_F   ? 
_reflns.d_resolution_low             5.000 
_reflns.d_resolution_high            2.300 
_reflns.number_obs                   3315 
_reflns.number_all                   20393 
_reflns.percent_possible_obs         94.400 
_reflns.pdbx_Rmerge_I_obs            0.0810000 
_reflns.pdbx_Rsym_value              0.0810000 
_reflns.pdbx_netI_over_sigmaI        ? 
_reflns.B_iso_Wilson_estimate        ? 
_reflns.pdbx_redundancy              ? 
_reflns.R_free_details               ? 
_reflns.pdbx_chi_squared             ? 
_reflns.pdbx_scaling_rejects         ? 
_reflns.pdbx_diffrn_id               1 
_reflns.pdbx_ordinal                 1 
# 
_refine.entry_id                                 1FIX 
_refine.ls_number_reflns_obs                     2457 
_refine.ls_number_reflns_all                     ? 
_refine.pdbx_ls_sigma_I                          ? 
_refine.pdbx_ls_sigma_F                          2.000 
_refine.pdbx_data_cutoff_high_absF               ? 
_refine.pdbx_data_cutoff_low_absF                ? 
_refine.pdbx_data_cutoff_high_rms_absF           ? 
_refine.ls_d_res_low                             5.000 
_refine.ls_d_res_high                            2.300 
_refine.ls_percent_reflns_obs                    80.000 
_refine.ls_R_factor_obs                          0.1450000 
_refine.ls_R_factor_all                          ? 
_refine.ls_R_factor_R_work                       0.1450000 
_refine.ls_R_factor_R_free                       ? 
_refine.ls_R_factor_R_free_error                 ? 
_refine.ls_R_factor_R_free_error_details         ? 
_refine.ls_percent_reflns_R_free                 ? 
_refine.ls_number_reflns_R_free                  ? 
_refine.ls_number_parameters                     ? 
_refine.ls_number_restraints                     ? 
_refine.occupancy_min                            ? 
_refine.occupancy_max                            ? 
_refine.B_iso_mean                               ? 
_refine.aniso_B[1][1]                            ? 
_refine.aniso_B[2][2]                            ? 
_refine.aniso_B[3][3]                            ? 
_refine.aniso_B[1][2]                            ? 
_refine.aniso_B[1][3]                            ? 
_refine.aniso_B[2][3]                            ? 
_refine.solvent_model_details                    ? 
_refine.solvent_model_param_ksol                 ? 
_refine.solvent_model_param_bsol                 ? 
_refine.pdbx_ls_cross_valid_method               ? 
_refine.details                                  
'NUCLEIC ACID RNA-DNA PARAMETER FILE: G. PARKINSON,ET AL. (1996) ACTA CRYST. D52, 57-64' 
_refine.pdbx_starting_model                      'A-FORM DUPLEX' 
_refine.pdbx_method_to_determine_struct          MIR 
_refine.pdbx_isotropic_thermal_model             ? 
_refine.pdbx_stereochemistry_target_values       ? 
_refine.pdbx_stereochem_target_val_spec_case     ? 
_refine.pdbx_R_Free_selection_details            ? 
_refine.pdbx_overall_ESU_R                       ? 
_refine.pdbx_overall_ESU_R_Free                  ? 
_refine.overall_SU_ML                            ? 
_refine.overall_SU_B                             ? 
_refine.pdbx_refine_id                           'X-RAY DIFFRACTION' 
_refine.ls_redundancy_reflns_obs                 ? 
_refine.pdbx_overall_phase_error                 ? 
_refine.correlation_coeff_Fo_to_Fc               ? 
_refine.correlation_coeff_Fo_to_Fc_free          ? 
_refine.pdbx_solvent_vdw_probe_radii             ? 
_refine.pdbx_solvent_ion_probe_radii             ? 
_refine.pdbx_solvent_shrinkage_radii             ? 
_refine.overall_SU_R_Cruickshank_DPI             ? 
_refine.overall_SU_R_free                        ? 
_refine.ls_wR_factor_R_free                      ? 
_refine.ls_wR_factor_R_work                      ? 
_refine.overall_FOM_free_R_set                   ? 
_refine.overall_FOM_work_R_set                   ? 
_refine.pdbx_diffrn_id                           1 
_refine.pdbx_TLS_residual_ADP_flag               ? 
_refine.pdbx_overall_SU_R_free_Cruickshank_DPI   ? 
_refine.pdbx_overall_SU_R_Blow_DPI               ? 
_refine.pdbx_overall_SU_R_free_Blow_DPI          ? 
# 
_refine_hist.pdbx_refine_id                   'X-RAY DIFFRACTION' 
_refine_hist.cycle_id                         LAST 
_refine_hist.pdbx_number_atoms_protein        0 
_refine_hist.pdbx_number_atoms_nucleic_acid   412 
_refine_hist.pdbx_number_atoms_ligand         0 
_refine_hist.number_atoms_solvent             72 
_refine_hist.number_atoms_total               484 
_refine_hist.d_res_high                       2.300 
_refine_hist.d_res_low                        5.000 
# 
loop_
_refine_ls_restr.type 
_refine_ls_restr.dev_ideal 
_refine_ls_restr.dev_ideal_target 
_refine_ls_restr.weight 
_refine_ls_restr.number 
_refine_ls_restr.pdbx_refine_id 
_refine_ls_restr.pdbx_restraint_function 
x_bond_d                0.019 ? ? ? 'X-RAY DIFFRACTION' ? 
x_bond_d_na             ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_bond_d_prot           ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_angle_d               ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_angle_d_na            ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_angle_d_prot          ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_angle_deg             2.20  ? ? ? 'X-RAY DIFFRACTION' ? 
x_angle_deg_na          ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_angle_deg_prot        ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_dihedral_angle_d      ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_dihedral_angle_d_na   ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_dihedral_angle_d_prot ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_improper_angle_d      ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_improper_angle_d_na   ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_improper_angle_d_prot ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_mcbond_it             ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_mcangle_it            ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_scbond_it             ?     ? ? ? 'X-RAY DIFFRACTION' ? 
x_scangle_it            ?     ? ? ? 'X-RAY DIFFRACTION' ? 
# 
_refine_ls_shell.pdbx_total_number_of_bins_used   8 
_refine_ls_shell.d_res_high                       2.30 
_refine_ls_shell.d_res_low                        2.39 
_refine_ls_shell.number_reflns_R_work             117 
_refine_ls_shell.R_factor_R_work                  0.2720000 
_refine_ls_shell.percent_reflns_obs               30.00 
_refine_ls_shell.R_factor_R_free                  ? 
_refine_ls_shell.R_factor_R_free_error            ? 
_refine_ls_shell.percent_reflns_R_free            ? 
_refine_ls_shell.number_reflns_R_free             ? 
_refine_ls_shell.pdbx_refine_id                   'X-RAY DIFFRACTION' 
_refine_ls_shell.redundancy_reflns_obs            ? 
_refine_ls_shell.number_reflns_all                ? 
_refine_ls_shell.number_reflns_obs                ? 
_refine_ls_shell.R_factor_all                     ? 
# 
_database_PDB_matrix.entry_id          1FIX 
_database_PDB_matrix.origx[1][1]       1.000000 
_database_PDB_matrix.origx[1][2]       0.000000 
_database_PDB_matrix.origx[1][3]       0.000000 
_database_PDB_matrix.origx[2][1]       0.000000 
_database_PDB_matrix.origx[2][2]       1.000000 
_database_PDB_matrix.origx[2][3]       0.000000 
_database_PDB_matrix.origx[3][1]       0.000000 
_database_PDB_matrix.origx[3][2]       0.000000 
_database_PDB_matrix.origx[3][3]       1.000000 
_database_PDB_matrix.origx_vector[1]   0.00000 
_database_PDB_matrix.origx_vector[2]   0.00000 
_database_PDB_matrix.origx_vector[3]   0.00000 
# 
_struct.entry_id                  1FIX 
_struct.title                     
'THE STRUCTURE OF AN RNA/DNA HYBRID: A SUBSTRATE OF THE RIBONUCLEASE ACTIVITY OF HIV-1 REVERSE TRANSCRIPTASE' 
_struct.pdbx_model_details        ? 
_struct.pdbx_CASP_flag            ? 
_struct.pdbx_model_type_details   ? 
# 
_struct_keywords.entry_id        1FIX 
_struct_keywords.pdbx_keywords   'DNA-RNA HYBRID' 
_struct_keywords.text            'RIGHT HANDED DNA/RNA HYBRID, DOUBLE HELIX, HIV-1 PRIMER BINDING SITE, DNA-RNA HYBRID' 
# 
loop_
_struct_asym.id 
_struct_asym.pdbx_blank_PDB_chainid_flag 
_struct_asym.pdbx_modified 
_struct_asym.entity_id 
_struct_asym.details 
A N N 1 ? 
B N N 2 ? 
C N N 3 ? 
D N N 3 ? 
# 
loop_
_struct_ref.id 
_struct_ref.entity_id 
_struct_ref.db_name 
_struct_ref.db_code 
_struct_ref.pdbx_db_accession 
_struct_ref.pdbx_align_begin 
_struct_ref.pdbx_seq_one_letter_code 
_struct_ref.pdbx_db_isoform 
1 1 PDB 1FIX 1FIX ? ? ? 
2 2 PDB 1FIX 1FIX ? ? ? 
# 
loop_
_struct_ref_seq.align_id 
_struct_ref_seq.ref_id 
_struct_ref_seq.pdbx_PDB_id_code 
_struct_ref_seq.pdbx_strand_id 
_struct_ref_seq.seq_align_beg 
_struct_ref_seq.pdbx_seq_align_beg_ins_code 
_struct_ref_seq.seq_align_end 
_struct_ref_seq.pdbx_seq_align_end_ins_code 
_struct_ref_seq.pdbx_db_accession 
_struct_ref_seq.db_align_beg 
_struct_ref_seq.pdbx_db_align_beg_ins_code 
_struct_ref_seq.db_align_end 
_struct_ref_seq.pdbx_db_align_end_ins_code 
_struct_ref_seq.pdbx_auth_seq_align_beg 
_struct_ref_seq.pdbx_auth_seq_align_end 
1 1 1FIX A 1 ? 10 ? 1FIX 1  ? 10 ? 1  10 
2 2 1FIX B 1 ? 10 ? 1FIX 11 ? 20 ? 11 20 
# 
_pdbx_struct_assembly.id                   1 
_pdbx_struct_assembly.details              author_defined_assembly 
_pdbx_struct_assembly.method_details       ? 
_pdbx_struct_assembly.oligomeric_details   dimeric 
_pdbx_struct_assembly.oligomeric_count     2 
# 
_pdbx_struct_assembly_gen.assembly_id       1 
_pdbx_struct_assembly_gen.oper_expression   1 
_pdbx_struct_assembly_gen.asym_id_list      A,B,C,D 
# 
_pdbx_struct_oper_list.id                   1 
_pdbx_struct_oper_list.type                 'identity operation' 
_pdbx_struct_oper_list.name                 1_555 
_pdbx_struct_oper_list.symmetry_operation   x,y,z 
_pdbx_struct_oper_list.matrix[1][1]         1.0000000000 
_pdbx_struct_oper_list.matrix[1][2]         0.0000000000 
_pdbx_struct_oper_list.matrix[1][3]         0.0000000000 
_pdbx_struct_oper_list.vector[1]            0.0000000000 
_pdbx_struct_oper_list.matrix[2][1]         0.0000000000 
_pdbx_struct_oper_list.matrix[2][2]         1.0000000000 
_pdbx_struct_oper_list.matrix[2][3]         0.0000000000 
_pdbx_struct_oper_list.vector[2]            0.0000000000 
_pdbx_struct_oper_list.matrix[3][1]         0.0000000000 
_pdbx_struct_oper_list.matrix[3][2]         0.0000000000 
_pdbx_struct_oper_list.matrix[3][3]         1.0000000000 
_pdbx_struct_oper_list.vector[3]            0.0000000000 
# 
_struct_biol.id        1 
_struct_biol.details   ? 
# 
loop_
_struct_conn.id 
_struct_conn.conn_type_id 
_struct_conn.pdbx_leaving_atom_flag 
_struct_conn.pdbx_PDB_id 
_struct_conn.ptnr1_label_asym_id 
_struct_conn.ptnr1_label_comp_id 
_struct_conn.ptnr1_label_seq_id 
_struct_conn.ptnr1_label_atom_id 
_struct_conn.pdbx_ptnr1_label_alt_id 
_struct_conn.pdbx_ptnr1_PDB_ins_code 
_struct_conn.pdbx_ptnr1_standard_comp_id 
_struct_conn.ptnr1_symmetry 
_struct_conn.ptnr2_label_asym_id 
_struct_conn.ptnr2_label_comp_id 
_struct_conn.ptnr2_label_seq_id 
_struct_conn.ptnr2_label_atom_id 
_struct_conn.pdbx_ptnr2_label_alt_id 
_struct_conn.pdbx_ptnr2_PDB_ins_code 
_struct_conn.ptnr1_auth_asym_id 
_struct_conn.ptnr1_auth_comp_id 
_struct_conn.ptnr1_auth_seq_id 
_struct_conn.ptnr2_auth_asym_id 
_struct_conn.ptnr2_auth_comp_id 
_struct_conn.ptnr2_auth_seq_id 
_struct_conn.ptnr2_symmetry 
_struct_conn.pdbx_ptnr3_label_atom_id 
_struct_conn.pdbx_ptnr3_label_seq_id 
_struct_conn.pdbx_ptnr3_label_comp_id 
_struct_conn.pdbx_ptnr3_label_asym_id 
_struct_conn.pdbx_ptnr3_label_alt_id 
_struct_conn.pdbx_ptnr3_PDB_ins_code 
_struct_conn.details 
_struct_conn.pdbx_dist_value 
_struct_conn.pdbx_value_order 
_struct_conn.pdbx_role 
hydrog1  hydrog ? ? A U 1  N3 ? ? ? 1_555 B DA 10 N1 ? ? A U 1  B DA 20 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog2  hydrog ? ? A U 1  O4 ? ? ? 1_555 B DA 10 N6 ? ? A U 1  B DA 20 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog3  hydrog ? ? A U 2  N3 ? ? ? 1_555 B DA 9  N1 ? ? A U 2  B DA 19 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog4  hydrog ? ? A U 2  O4 ? ? ? 1_555 B DA 9  N6 ? ? A U 2  B DA 19 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog5  hydrog ? ? A C 3  N3 ? ? ? 1_555 B DG 8  N1 ? ? A C 3  B DG 18 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog6  hydrog ? ? A C 3  N4 ? ? ? 1_555 B DG 8  O6 ? ? A C 3  B DG 18 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog7  hydrog ? ? A C 3  O2 ? ? ? 1_555 B DG 8  N2 ? ? A C 3  B DG 18 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog8  hydrog ? ? A G 4  N1 ? ? ? 1_555 B DC 7  N3 ? ? A G 4  B DC 17 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog9  hydrog ? ? A G 4  N2 ? ? ? 1_555 B DC 7  O2 ? ? A G 4  B DC 17 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog10 hydrog ? ? A G 4  O6 ? ? ? 1_555 B DC 7  N4 ? ? A G 4  B DC 17 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog11 hydrog ? ? A G 5  N1 ? ? ? 1_555 B DC 6  N3 ? ? A G 5  B DC 16 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog12 hydrog ? ? A G 5  N2 ? ? ? 1_555 B DC 6  O2 ? ? A G 5  B DC 16 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog13 hydrog ? ? A G 5  O6 ? ? ? 1_555 B DC 6  N4 ? ? A G 5  B DC 16 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog14 hydrog ? ? A G 6  N1 ? ? ? 1_555 B DC 5  N3 ? ? A G 6  B DC 15 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog15 hydrog ? ? A G 6  N2 ? ? ? 1_555 B DC 5  O2 ? ? A G 6  B DC 15 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog16 hydrog ? ? A G 6  O6 ? ? ? 1_555 B DC 5  N4 ? ? A G 6  B DC 15 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog17 hydrog ? ? A C 7  N3 ? ? ? 1_555 B DG 4  N1 ? ? A C 7  B DG 14 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog18 hydrog ? ? A C 7  N4 ? ? ? 1_555 B DG 4  O6 ? ? A C 7  B DG 14 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog19 hydrog ? ? A C 7  O2 ? ? ? 1_555 B DG 4  N2 ? ? A C 7  B DG 14 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog20 hydrog ? ? A G 8  N1 ? ? ? 1_555 B DC 3  N3 ? ? A G 8  B DC 13 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog21 hydrog ? ? A G 8  N2 ? ? ? 1_555 B DC 3  O2 ? ? A G 8  B DC 13 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog22 hydrog ? ? A G 8  O6 ? ? ? 1_555 B DC 3  N4 ? ? A G 8  B DC 13 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog23 hydrog ? ? A C 9  N3 ? ? ? 1_555 B DG 2  N1 ? ? A C 9  B DG 12 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog24 hydrog ? ? A C 9  N4 ? ? ? 1_555 B DG 2  O6 ? ? A C 9  B DG 12 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog25 hydrog ? ? A C 9  O2 ? ? ? 1_555 B DG 2  N2 ? ? A C 9  B DG 12 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog26 hydrog ? ? A C 10 N3 ? ? ? 1_555 B DG 1  N1 ? ? A C 10 B DG 11 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog27 hydrog ? ? A C 10 N4 ? ? ? 1_555 B DG 1  O6 ? ? A C 10 B DG 11 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog28 hydrog ? ? A C 10 O2 ? ? ? 1_555 B DG 1  N2 ? ? A C 10 B DG 11 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
# 
_struct_conn_type.id          hydrog 
_struct_conn_type.criteria    ? 
_struct_conn_type.reference   ? 
# 
_pdbx_validate_rmsd_angle.id                         1 
_pdbx_validate_rmsd_angle.PDB_model_num              1 
_pdbx_validate_rmsd_angle.auth_atom_id_1             "O4'" 
_pdbx_validate_rmsd_angle.auth_asym_id_1             B 
_pdbx_validate_rmsd_angle.auth_comp_id_1             DC 
_pdbx_validate_rmsd_angle.auth_seq_id_1              15 
_pdbx_validate_rmsd_angle.PDB_ins_code_1             ? 
_pdbx_validate_rmsd_angle.label_alt_id_1             ? 
_pdbx_validate_rmsd_angle.auth_atom_id_2             "C4'" 
_pdbx_validate_rmsd_angle.auth_asym_id_2             B 
_pdbx_validate_rmsd_angle.auth_comp_id_2             DC 
_pdbx_validate_rmsd_angle.auth_seq_id_2              15 
_pdbx_validate_rmsd_angle.PDB_ins_code_2             ? 
_pdbx_validate_rmsd_angle.label_alt_id_2             ? 
_pdbx_validate_rmsd_angle.auth_atom_id_3             "C3'" 
_pdbx_validate_rmsd_angle.auth_asym_id_3             B 
_pdbx_validate_rmsd_angle.auth_comp_id_3             DC 
_pdbx_validate_rmsd_angle.auth_seq_id_3              15 
_pdbx_validate_rmsd_angle.PDB_ins_code_3             ? 
_pdbx_validate_rmsd_angle.label_alt_id_3             ? 
_pdbx_validate_rmsd_angle.angle_value                101.92 
_pdbx_validate_rmsd_angle.angle_target_value         104.50 
_pdbx_validate_rmsd_angle.angle_deviation            -2.58 
_pdbx_validate_rmsd_angle.angle_standard_deviation   0.40 
_pdbx_validate_rmsd_angle.linker_flag                N 
# 
loop_
_pdbx_validate_planes.id 
_pdbx_validate_planes.PDB_model_num 
_pdbx_validate_planes.auth_comp_id 
_pdbx_validate_planes.auth_asym_id 
_pdbx_validate_planes.auth_seq_id 
_pdbx_validate_planes.PDB_ins_code 
_pdbx_validate_planes.label_alt_id 
_pdbx_validate_planes.rmsd 
_pdbx_validate_planes.type 
1 1 U A 2 ? ? 0.084 'SIDE CHAIN' 
2 1 G A 5 ? ? 0.057 'SIDE CHAIN' 
# 
loop_
_refine_B_iso.class 
_refine_B_iso.details 
_refine_B_iso.treatment 
_refine_B_iso.pdbx_refine_id 
'ALL ATOMS'  TR isotropic 'X-RAY DIFFRACTION' 
'ALL WATERS' TR isotropic 'X-RAY DIFFRACTION' 
# 
loop_
_refine_occupancy.class 
_refine_occupancy.treatment 
_refine_occupancy.pdbx_refine_id 
'ALL ATOMS'  fix 'X-RAY DIFFRACTION' 
'ALL WATERS' fix 'X-RAY DIFFRACTION' 
# 
loop_
_chem_comp_atom.comp_id 
_chem_comp_atom.atom_id 
_chem_comp_atom.type_symbol 
_chem_comp_atom.pdbx_aromatic_flag 
_chem_comp_atom.pdbx_stereo_config 
_chem_comp_atom.pdbx_ordinal 
C   OP3    O N N 1   
C   P      P N N 2   
C   OP1    O N N 3   
C   OP2    O N N 4   
C   "O5'"  O N N 5   
C   "C5'"  C N N 6   
C   "C4'"  C N R 7   
C   "O4'"  O N N 8   
C   "C3'"  C N S 9   
C   "O3'"  O N N 10  
C   "C2'"  C N R 11  
C   "O2'"  O N N 12  
C   "C1'"  C N R 13  
C   N1     N N N 14  
C   C2     C N N 15  
C   O2     O N N 16  
C   N3     N N N 17  
C   C4     C N N 18  
C   N4     N N N 19  
C   C5     C N N 20  
C   C6     C N N 21  
C   HOP3   H N N 22  
C   HOP2   H N N 23  
C   "H5'"  H N N 24  
C   "H5''" H N N 25  
C   "H4'"  H N N 26  
C   "H3'"  H N N 27  
C   "HO3'" H N N 28  
C   "H2'"  H N N 29  
C   "HO2'" H N N 30  
C   "H1'"  H N N 31  
C   H41    H N N 32  
C   H42    H N N 33  
C   H5     H N N 34  
C   H6     H N N 35  
DA  OP3    O N N 36  
DA  P      P N N 37  
DA  OP1    O N N 38  
DA  OP2    O N N 39  
DA  "O5'"  O N N 40  
DA  "C5'"  C N N 41  
DA  "C4'"  C N R 42  
DA  "O4'"  O N N 43  
DA  "C3'"  C N S 44  
DA  "O3'"  O N N 45  
DA  "C2'"  C N N 46  
DA  "C1'"  C N R 47  
DA  N9     N Y N 48  
DA  C8     C Y N 49  
DA  N7     N Y N 50  
DA  C5     C Y N 51  
DA  C6     C Y N 52  
DA  N6     N N N 53  
DA  N1     N Y N 54  
DA  C2     C Y N 55  
DA  N3     N Y N 56  
DA  C4     C Y N 57  
DA  HOP3   H N N 58  
DA  HOP2   H N N 59  
DA  "H5'"  H N N 60  
DA  "H5''" H N N 61  
DA  "H4'"  H N N 62  
DA  "H3'"  H N N 63  
DA  "HO3'" H N N 64  
DA  "H2'"  H N N 65  
DA  "H2''" H N N 66  
DA  "H1'"  H N N 67  
DA  H8     H N N 68  
DA  H61    H N N 69  
DA  H62    H N N 70  
DA  H2     H N N 71  
DC  OP3    O N N 72  
DC  P      P N N 73  
DC  OP1    O N N 74  
DC  OP2    O N N 75  
DC  "O5'"  O N N 76  
DC  "C5'"  C N N 77  
DC  "C4'"  C N R 78  
DC  "O4'"  O N N 79  
DC  "C3'"  C N S 80  
DC  "O3'"  O N N 81  
DC  "C2'"  C N N 82  
DC  "C1'"  C N R 83  
DC  N1     N N N 84  
DC  C2     C N N 85  
DC  O2     O N N 86  
DC  N3     N N N 87  
DC  C4     C N N 88  
DC  N4     N N N 89  
DC  C5     C N N 90  
DC  C6     C N N 91  
DC  HOP3   H N N 92  
DC  HOP2   H N N 93  
DC  "H5'"  H N N 94  
DC  "H5''" H N N 95  
DC  "H4'"  H N N 96  
DC  "H3'"  H N N 97  
DC  "HO3'" H N N 98  
DC  "H2'"  H N N 99  
DC  "H2''" H N N 100 
DC  "H1'"  H N N 101 
DC  H41    H N N 102 
DC  H42    H N N 103 
DC  H5     H N N 104 
DC  H6     H N N 105 
DG  OP3    O N N 106 
DG  P      P N N 107 
DG  OP1    O N N 108 
DG  OP2    O N N 109 
DG  "O5'"  O N N 110 
DG  "C5'"  C N N 111 
DG  "C4'"  C N R 112 
DG  "O4'"  O N N 113 
DG  "C3'"  C N S 114 
DG  "O3'"  O N N 115 
DG  "C2'"  C N N 116 
DG  "C1'"  C N R 117 
DG  N9     N Y N 118 
DG  C8     C Y N 119 
DG  N7     N Y N 120 
DG  C5     C Y N 121 
DG  C6     C N N 122 
DG  O6     O N N 123 
DG  N1     N N N 124 
DG  C2     C N N 125 
DG  N2     N N N 126 
DG  N3     N N N 127 
DG  C4     C Y N 128 
DG  HOP3   H N N 129 
DG  HOP2   H N N 130 
DG  "H5'"  H N N 131 
DG  "H5''" H N N 132 
DG  "H4'"  H N N 133 
DG  "H3'"  H N N 134 
DG  "HO3'" H N N 135 
DG  "H2'"  H N N 136 
DG  "H2''" H N N 137 
DG  "H1'"  H N N 138 
DG  H8     H N N 139 
DG  H1     H N N 140 
DG  H21    H N N 141 
DG  H22    H N N 142 
G   OP3    O N N 143 
G   P      P N N 144 
G   OP1    O N N 145 
G   OP2    O N N 146 
G   "O5'"  O N N 147 
G   "C5'"  C N N 148 
G   "C4'"  C N R 149 
G   "O4'"  O N N 150 
G   "C3'"  C N S 151 
G   "O3'"  O N N 152 
G   "C2'"  C N R 153 
G   "O2'"  O N N 154 
G   "C1'"  C N R 155 
G   N9     N Y N 156 
G   C8     C Y N 157 
G   N7     N Y N 158 
G   C5     C Y N 159 
G   C6     C N N 160 
G   O6     O N N 161 
G   N1     N N N 162 
G   C2     C N N 163 
G   N2     N N N 164 
G   N3     N N N 165 
G   C4     C Y N 166 
G   HOP3   H N N 167 
G   HOP2   H N N 168 
G   "H5'"  H N N 169 
G   "H5''" H N N 170 
G   "H4'"  H N N 171 
G   "H3'"  H N N 172 
G   "HO3'" H N N 173 
G   "H2'"  H N N 174 
G   "HO2'" H N N 175 
G   "H1'"  H N N 176 
G   H8     H N N 177 
G   H1     H N N 178 
G   H21    H N N 179 
G   H22    H N N 180 
HOH O      O N N 181 
HOH H1     H N N 182 
HOH H2     H N N 183 
U   OP3    O N N 184 
U   P      P N N 185 
U   OP1    O N N 186 
U   OP2    O N N 187 
U   "O5'"  O N N 188 
U   "C5'"  C N N 189 
U   "C4'"  C N R 190 
U   "O4'"  O N N 191 
U   "C3'"  C N S 192 
U   "O3'"  O N N 193 
U   "C2'"  C N R 194 
U   "O2'"  O N N 195 
U   "C1'"  C N R 196 
U   N1     N N N 197 
U   C2     C N N 198 
U   O2     O N N 199 
U   N3     N N N 200 
U   C4     C N N 201 
U   O4     O N N 202 
U   C5     C N N 203 
U   C6     C N N 204 
U   HOP3   H N N 205 
U   HOP2   H N N 206 
U   "H5'"  H N N 207 
U   "H5''" H N N 208 
U   "H4'"  H N N 209 
U   "H3'"  H N N 210 
U   "HO3'" H N N 211 
U   "H2'"  H N N 212 
U   "HO2'" H N N 213 
U   "H1'"  H N N 214 
U   H3     H N N 215 
U   H5     H N N 216 
U   H6     H N N 217 
# 
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 
C   OP3   P      sing N N 1   
C   OP3   HOP3   sing N N 2   
C   P     OP1    doub N N 3   
C   P     OP2    sing N N 4   
C   P     "O5'"  sing N N 5   
C   OP2   HOP2   sing N N 6   
C   "O5'" "C5'"  sing N N 7   
C   "C5'" "C4'"  sing N N 8   
C   "C5'" "H5'"  sing N N 9   
C   "C5'" "H5''" sing N N 10  
C   "C4'" "O4'"  sing N N 11  
C   "C4'" "C3'"  sing N N 12  
C   "C4'" "H4'"  sing N N 13  
C   "O4'" "C1'"  sing N N 14  
C   "C3'" "O3'"  sing N N 15  
C   "C3'" "C2'"  sing N N 16  
C   "C3'" "H3'"  sing N N 17  
C   "O3'" "HO3'" sing N N 18  
C   "C2'" "O2'"  sing N N 19  
C   "C2'" "C1'"  sing N N 20  
C   "C2'" "H2'"  sing N N 21  
C   "O2'" "HO2'" sing N N 22  
C   "C1'" N1     sing N N 23  
C   "C1'" "H1'"  sing N N 24  
C   N1    C2     sing N N 25  
C   N1    C6     sing N N 26  
C   C2    O2     doub N N 27  
C   C2    N3     sing N N 28  
C   N3    C4     doub N N 29  
C   C4    N4     sing N N 30  
C   C4    C5     sing N N 31  
C   N4    H41    sing N N 32  
C   N4    H42    sing N N 33  
C   C5    C6     doub N N 34  
C   C5    H5     sing N N 35  
C   C6    H6     sing N N 36  
DA  OP3   P      sing N N 37  
DA  OP3   HOP3   sing N N 38  
DA  P     OP1    doub N N 39  
DA  P     OP2    sing N N 40  
DA  P     "O5'"  sing N N 41  
DA  OP2   HOP2   sing N N 42  
DA  "O5'" "C5'"  sing N N 43  
DA  "C5'" "C4'"  sing N N 44  
DA  "C5'" "H5'"  sing N N 45  
DA  "C5'" "H5''" sing N N 46  
DA  "C4'" "O4'"  sing N N 47  
DA  "C4'" "C3'"  sing N N 48  
DA  "C4'" "H4'"  sing N N 49  
DA  "O4'" "C1'"  sing N N 50  
DA  "C3'" "O3'"  sing N N 51  
DA  "C3'" "C2'"  sing N N 52  
DA  "C3'" "H3'"  sing N N 53  
DA  "O3'" "HO3'" sing N N 54  
DA  "C2'" "C1'"  sing N N 55  
DA  "C2'" "H2'"  sing N N 56  
DA  "C2'" "H2''" sing N N 57  
DA  "C1'" N9     sing N N 58  
DA  "C1'" "H1'"  sing N N 59  
DA  N9    C8     sing Y N 60  
DA  N9    C4     sing Y N 61  
DA  C8    N7     doub Y N 62  
DA  C8    H8     sing N N 63  
DA  N7    C5     sing Y N 64  
DA  C5    C6     sing Y N 65  
DA  C5    C4     doub Y N 66  
DA  C6    N6     sing N N 67  
DA  C6    N1     doub Y N 68  
DA  N6    H61    sing N N 69  
DA  N6    H62    sing N N 70  
DA  N1    C2     sing Y N 71  
DA  C2    N3     doub Y N 72  
DA  C2    H2     sing N N 73  
DA  N3    C4     sing Y N 74  
DC  OP3   P      sing N N 75  
DC  OP3   HOP3   sing N N 76  
DC  P     OP1    doub N N 77  
DC  P     OP2    sing N N 78  
DC  P     "O5'"  sing N N 79  
DC  OP2   HOP2   sing N N 80  
DC  "O5'" "C5'"  sing N N 81  
DC  "C5'" "C4'"  sing N N 82  
DC  "C5'" "H5'"  sing N N 83  
DC  "C5'" "H5''" sing N N 84  
DC  "C4'" "O4'"  sing N N 85  
DC  "C4'" "C3'"  sing N N 86  
DC  "C4'" "H4'"  sing N N 87  
DC  "O4'" "C1'"  sing N N 88  
DC  "C3'" "O3'"  sing N N 89  
DC  "C3'" "C2'"  sing N N 90  
DC  "C3'" "H3'"  sing N N 91  
DC  "O3'" "HO3'" sing N N 92  
DC  "C2'" "C1'"  sing N N 93  
DC  "C2'" "H2'"  sing N N 94  
DC  "C2'" "H2''" sing N N 95  
DC  "C1'" N1     sing N N 96  
DC  "C1'" "H1'"  sing N N 97  
DC  N1    C2     sing N N 98  
DC  N1    C6     sing N N 99  
DC  C2    O2     doub N N 100 
DC  C2    N3     sing N N 101 
DC  N3    C4     doub N N 102 
DC  C4    N4     sing N N 103 
DC  C4    C5     sing N N 104 
DC  N4    H41    sing N N 105 
DC  N4    H42    sing N N 106 
DC  C5    C6     doub N N 107 
DC  C5    H5     sing N N 108 
DC  C6    H6     sing N N 109 
DG  OP3   P      sing N N 110 
DG  OP3   HOP3   sing N N 111 
DG  P     OP1    doub N N 112 
DG  P     OP2    sing N N 113 
DG  P     "O5'"  sing N N 114 
DG  OP2   HOP2   sing N N 115 
DG  "O5'" "C5'"  sing N N 116 
DG  "C5'" "C4'"  sing N N 117 
DG  "C5'" "H5'"  sing N N 118 
DG  "C5'" "H5''" sing N N 119 
DG  "C4'" "O4'"  sing N N 120 
DG  "C4'" "C3'"  sing N N 121 
DG  "C4'" "H4'"  sing N N 122 
DG  "O4'" "C1'"  sing N N 123 
DG  "C3'" "O3'"  sing N N 124 
DG  "C3'" "C2'"  sing N N 125 
DG  "C3'" "H3'"  sing N N 126 
DG  "O3'" "HO3'" sing N N 127 
DG  "C2'" "C1'"  sing N N 128 
DG  "C2'" "H2'"  sing N N 129 
DG  "C2'" "H2''" sing N N 130 
DG  "C1'" N9     sing N N 131 
DG  "C1'" "H1'"  sing N N 132 
DG  N9    C8     sing Y N 133 
DG  N9    C4     sing Y N 134 
DG  C8    N7     doub Y N 135 
DG  C8    H8     sing N N 136 
DG  N7    C5     sing Y N 137 
DG  C5    C6     sing N N 138 
DG  C5    C4     doub Y N 139 
DG  C6    O6     doub N N 140 
DG  C6    N1     sing N N 141 
DG  N1    C2     sing N N 142 
DG  N1    H1     sing N N 143 
DG  C2    N2     sing N N 144 
DG  C2    N3     doub N N 145 
DG  N2    H21    sing N N 146 
DG  N2    H22    sing N N 147 
DG  N3    C4     sing N N 148 
G   OP3   P      sing N N 149 
G   OP3   HOP3   sing N N 150 
G   P     OP1    doub N N 151 
G   P     OP2    sing N N 152 
G   P     "O5'"  sing N N 153 
G   OP2   HOP2   sing N N 154 
G   "O5'" "C5'"  sing N N 155 
G   "C5'" "C4'"  sing N N 156 
G   "C5'" "H5'"  sing N N 157 
G   "C5'" "H5''" sing N N 158 
G   "C4'" "O4'"  sing N N 159 
G   "C4'" "C3'"  sing N N 160 
G   "C4'" "H4'"  sing N N 161 
G   "O4'" "C1'"  sing N N 162 
G   "C3'" "O3'"  sing N N 163 
G   "C3'" "C2'"  sing N N 164 
G   "C3'" "H3'"  sing N N 165 
G   "O3'" "HO3'" sing N N 166 
G   "C2'" "O2'"  sing N N 167 
G   "C2'" "C1'"  sing N N 168 
G   "C2'" "H2'"  sing N N 169 
G   "O2'" "HO2'" sing N N 170 
G   "C1'" N9     sing N N 171 
G   "C1'" "H1'"  sing N N 172 
G   N9    C8     sing Y N 173 
G   N9    C4     sing Y N 174 
G   C8    N7     doub Y N 175 
G   C8    H8     sing N N 176 
G   N7    C5     sing Y N 177 
G   C5    C6     sing N N 178 
G   C5    C4     doub Y N 179 
G   C6    O6     doub N N 180 
G   C6    N1     sing N N 181 
G   N1    C2     sing N N 182 
G   N1    H1     sing N N 183 
G   C2    N2     sing N N 184 
G   C2    N3     doub N N 185 
G   N2    H21    sing N N 186 
G   N2    H22    sing N N 187 
G   N3    C4     sing N N 188 
HOH O     H1     sing N N 189 
HOH O     H2     sing N N 190 
U   OP3   P      sing N N 191 
U   OP3   HOP3   sing N N 192 
U   P     OP1    doub N N 193 
U   P     OP2    sing N N 194 
U   P     "O5'"  sing N N 195 
U   OP2   HOP2   sing N N 196 
U   "O5'" "C5'"  sing N N 197 
U   "C5'" "C4'"  sing N N 198 
U   "C5'" "H5'"  sing N N 199 
U   "C5'" "H5''" sing N N 200 
U   "C4'" "O4'"  sing N N 201 
U   "C4'" "C3'"  sing N N 202 
U   "C4'" "H4'"  sing N N 203 
U   "O4'" "C1'"  sing N N 204 
U   "C3'" "O3'"  sing N N 205 
U   "C3'" "C2'"  sing N N 206 
U   "C3'" "H3'"  sing N N 207 
U   "O3'" "HO3'" sing N N 208 
U   "C2'" "O2'"  sing N N 209 
U   "C2'" "C1'"  sing N N 210 
U   "C2'" "H2'"  sing N N 211 
U   "O2'" "HO2'" sing N N 212 
U   "C1'" N1     sing N N 213 
U   "C1'" "H1'"  sing N N 214 
U   N1    C2     sing N N 215 
U   N1    C6     sing N N 216 
U   C2    O2     doub N N 217 
U   C2    N3     sing N N 218 
U   N3    C4     sing N N 219 
U   N3    H3     sing N N 220 
U   C4    O4     doub N N 221 
U   C4    C5     sing N N 222 
U   C5    C6     doub N N 223 
U   C5    H5     sing N N 224 
U   C6    H6     sing N N 225 
# 
loop_
_ndb_struct_conf_na.entry_id 
_ndb_struct_conf_na.feature 
1FIX 'double helix'        
1FIX 'a-form double helix' 
# 
loop_
_ndb_struct_na_base_pair.model_number 
_ndb_struct_na_base_pair.i_label_asym_id 
_ndb_struct_na_base_pair.i_label_comp_id 
_ndb_struct_na_base_pair.i_label_seq_id 
_ndb_struct_na_base_pair.i_symmetry 
_ndb_struct_na_base_pair.j_label_asym_id 
_ndb_struct_na_base_pair.j_label_comp_id 
_ndb_struct_na_base_pair.j_label_seq_id 
_ndb_struct_na_base_pair.j_symmetry 
_ndb_struct_na_base_pair.shear 
_ndb_struct_na_base_pair.stretch 
_ndb_struct_na_base_pair.stagger 
_ndb_struct_na_base_pair.buckle 
_ndb_struct_na_base_pair.propeller 
_ndb_struct_na_base_pair.opening 
_ndb_struct_na_base_pair.pair_number 
_ndb_struct_na_base_pair.pair_name 
_ndb_struct_na_base_pair.i_auth_asym_id 
_ndb_struct_na_base_pair.i_auth_seq_id 
_ndb_struct_na_base_pair.i_PDB_ins_code 
_ndb_struct_na_base_pair.j_auth_asym_id 
_ndb_struct_na_base_pair.j_auth_seq_id 
_ndb_struct_na_base_pair.j_PDB_ins_code 
_ndb_struct_na_base_pair.hbond_type_28 
_ndb_struct_na_base_pair.hbond_type_12 
1 A U 1  1_555 B DA 10 1_555 0.212  -0.284 -0.128 -0.816  -18.085 -1.761 1  A_U1:DA20_B  A 1  ? B 20 ? 20 1 
1 A U 2  1_555 B DA 9  1_555 -0.163 -0.188 -0.379 5.424   -19.443 3.450  2  A_U2:DA19_B  A 2  ? B 19 ? 20 1 
1 A C 3  1_555 B DG 8  1_555 0.132  -0.257 0.319  -6.727  -16.172 -3.063 3  A_C3:DG18_B  A 3  ? B 18 ? 19 1 
1 A G 4  1_555 B DC 7  1_555 -0.539 -0.153 -0.005 -8.560  -17.579 3.867  4  A_G4:DC17_B  A 4  ? B 17 ? 19 1 
1 A G 5  1_555 B DC 6  1_555 -0.573 -0.349 -0.335 -17.608 -11.474 -3.315 5  A_G5:DC16_B  A 5  ? B 16 ? 19 1 
1 A G 6  1_555 B DC 5  1_555 -0.511 -0.325 -0.249 -9.687  -14.621 -2.135 6  A_G6:DC15_B  A 6  ? B 15 ? 19 1 
1 A C 7  1_555 B DG 4  1_555 0.168  -0.172 0.136  -3.795  -8.436  2.779  7  A_C7:DG14_B  A 7  ? B 14 ? 19 1 
1 A G 8  1_555 B DC 3  1_555 -0.396 -0.137 -0.156 -9.449  -11.290 2.093  8  A_G8:DC13_B  A 8  ? B 13 ? 19 1 
1 A C 9  1_555 B DG 2  1_555 0.144  -0.289 -0.134 0.781   -10.375 2.972  9  A_C9:DG12_B  A 9  ? B 12 ? 19 1 
1 A C 10 1_555 B DG 1  1_555 0.078  -0.318 0.025  2.086   7.245   -0.960 10 A_C10:DG11_B A 10 ? B 11 ? 19 1 
# 
loop_
_ndb_struct_na_base_pair_step.model_number 
_ndb_struct_na_base_pair_step.i_label_asym_id_1 
_ndb_struct_na_base_pair_step.i_label_comp_id_1 
_ndb_struct_na_base_pair_step.i_label_seq_id_1 
_ndb_struct_na_base_pair_step.i_symmetry_1 
_ndb_struct_na_base_pair_step.j_label_asym_id_1 
_ndb_struct_na_base_pair_step.j_label_comp_id_1 
_ndb_struct_na_base_pair_step.j_label_seq_id_1 
_ndb_struct_na_base_pair_step.j_symmetry_1 
_ndb_struct_na_base_pair_step.i_label_asym_id_2 
_ndb_struct_na_base_pair_step.i_label_comp_id_2 
_ndb_struct_na_base_pair_step.i_label_seq_id_2 
_ndb_struct_na_base_pair_step.i_symmetry_2 
_ndb_struct_na_base_pair_step.j_label_asym_id_2 
_ndb_struct_na_base_pair_step.j_label_comp_id_2 
_ndb_struct_na_base_pair_step.j_label_seq_id_2 
_ndb_struct_na_base_pair_step.j_symmetry_2 
_ndb_struct_na_base_pair_step.shift 
_ndb_struct_na_base_pair_step.slide 
_ndb_struct_na_base_pair_step.rise 
_ndb_struct_na_base_pair_step.tilt 
_ndb_struct_na_base_pair_step.roll 
_ndb_struct_na_base_pair_step.twist 
_ndb_struct_na_base_pair_step.x_displacement 
_ndb_struct_na_base_pair_step.y_displacement 
_ndb_struct_na_base_pair_step.helical_rise 
_ndb_struct_na_base_pair_step.inclination 
_ndb_struct_na_base_pair_step.tip 
_ndb_struct_na_base_pair_step.helical_twist 
_ndb_struct_na_base_pair_step.step_number 
_ndb_struct_na_base_pair_step.step_name 
_ndb_struct_na_base_pair_step.i_auth_asym_id_1 
_ndb_struct_na_base_pair_step.i_auth_seq_id_1 
_ndb_struct_na_base_pair_step.i_PDB_ins_code_1 
_ndb_struct_na_base_pair_step.j_auth_asym_id_1 
_ndb_struct_na_base_pair_step.j_auth_seq_id_1 
_ndb_struct_na_base_pair_step.j_PDB_ins_code_1 
_ndb_struct_na_base_pair_step.i_auth_asym_id_2 
_ndb_struct_na_base_pair_step.i_auth_seq_id_2 
_ndb_struct_na_base_pair_step.i_PDB_ins_code_2 
_ndb_struct_na_base_pair_step.j_auth_asym_id_2 
_ndb_struct_na_base_pair_step.j_auth_seq_id_2 
_ndb_struct_na_base_pair_step.j_PDB_ins_code_2 
1 A U 1 1_555 B DA 10 1_555 A U 2  1_555 B DA 9 1_555 0.308  -0.472 2.994 3.842  9.291  33.521 -2.054 0.012  2.786 15.675 -6.483 
34.955 1 AA_U1U2:DA19DA20_BB  A 1 ? B 20 ? A 2  ? B 19 ? 
1 A U 2 1_555 B DA 9  1_555 A C 3  1_555 B DG 8 1_555 0.413  -0.770 3.737 -6.209 7.182  36.041 -2.267 -1.564 3.411 11.366 9.827  
37.230 2 AA_U2C3:DG18DA19_BB  A 2 ? B 19 ? A 3  ? B 18 ? 
1 A C 3 1_555 B DG 8  1_555 A G 4  1_555 B DC 7 1_555 0.472  -1.853 3.149 1.751  9.702  27.244 -5.583 -0.606 2.386 19.793 -3.572 
28.942 3 AA_C3G4:DC17DG18_BB  A 3 ? B 18 ? A 4  ? B 17 ? 
1 A G 4 1_555 B DC 7  1_555 A G 5  1_555 B DC 6 1_555 -1.187 -1.541 3.450 -0.851 11.580 33.619 -4.195 1.823  2.811 19.319 1.419  
35.513 4 AA_G4G5:DC16DC17_BB  A 4 ? B 17 ? A 5  ? B 16 ? 
1 A G 5 1_555 B DC 6  1_555 A G 6  1_555 B DC 5 1_555 1.034  -1.824 3.255 2.672  12.445 26.336 -6.028 -1.534 2.271 25.506 -5.477 
29.202 5 AA_G5G6:DC15DC16_BB  A 5 ? B 16 ? A 6  ? B 15 ? 
1 A G 6 1_555 B DC 5  1_555 A C 7  1_555 B DG 4 1_555 0.407  -1.221 3.144 -1.844 5.997  35.049 -2.808 -0.915 2.878 9.859  3.032  
35.588 6 AA_G6C7:DG14DC15_BB  A 6 ? B 15 ? A 7  ? B 14 ? 
1 A C 7 1_555 B DG 4  1_555 A G 8  1_555 B DC 3 1_555 0.403  -1.691 3.392 4.154  7.888  27.966 -5.003 0.080  2.848 15.820 -8.331 
29.325 7 AA_C7G8:DC13DG14_BB  A 7 ? B 14 ? A 8  ? B 13 ? 
1 A G 8 1_555 B DC 3  1_555 A C 9  1_555 B DG 2 1_555 0.123  -1.066 3.113 1.113  2.741  34.294 -2.203 -0.045 3.024 4.638  -1.883 
34.417 8 AA_G8C9:DG12DC13_BB  A 8 ? B 13 ? A 9  ? B 12 ? 
1 A C 9 1_555 B DG 2  1_555 A C 10 1_555 B DG 1 1_555 -0.108 -1.679 3.476 0.603  4.837  31.931 -3.898 0.305  3.192 8.729  -1.089 
32.291 9 AA_C9C10:DG11DG12_BB A 9 ? B 12 ? A 10 ? B 11 ? 
# 
_pdbx_initial_refinement_model.accession_code   ? 
_pdbx_initial_refinement_model.id               1 
_pdbx_initial_refinement_model.entity_id_list   ? 
_pdbx_initial_refinement_model.type             'in silico model' 
_pdbx_initial_refinement_model.source_name      Other 
_pdbx_initial_refinement_model.details          'A-form RNA/DNA duplex' 
# 
_atom_sites.entry_id                    1FIX 
_atom_sites.Cartn_transform_axes        ? 
_atom_sites.fract_transf_matrix[1][1]   0.031949 
_atom_sites.fract_transf_matrix[1][2]   0.000000 
_atom_sites.fract_transf_matrix[1][3]   0.000000 
_atom_sites.fract_transf_matrix[2][1]   0.000000 
_atom_sites.fract_transf_matrix[2][2]   0.031949 
_atom_sites.fract_transf_matrix[2][3]   0.000000 
_atom_sites.fract_transf_matrix[3][1]   0.000000 
_atom_sites.fract_transf_matrix[3][2]   0.000000 
_atom_sites.fract_transf_matrix[3][3]   0.007262 
_atom_sites.fract_transf_vector[1]      0.00000 
_atom_sites.fract_transf_vector[2]      0.00000 
_atom_sites.fract_transf_vector[3]      0.00000 
# 
loop_
_atom_type.symbol 
C 
N 
O 
P 
# 
loop_