data_3NPN
# 
_entry.id   3NPN 
# 
_audit_conform.dict_name       mmcif_pdbx.dic 
_audit_conform.dict_version    5.383 
_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   3NPN         pdb_00003npn 10.2210/pdb3npn/pdb 
NDB   NA0620       ?            ?                   
RCSB  RCSB060122   ?            ?                   
WWPDB D_1000060122 ?            ?                   
# 
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 2010-10-06 
2 'Structure model' 1 1 2011-07-13 
3 'Structure model' 1 2 2017-11-08 
4 'Structure model' 1 3 2023-12-27 
# 
_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' 'Refinement description'    
3 4 'Structure model' 'Data collection'           
4 4 'Structure model' 'Database references'       
5 4 'Structure model' 'Derived calculations'      
# 
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 3 'Structure model' software       
2 4 'Structure model' chem_comp_atom 
3 4 'Structure model' chem_comp_bond 
4 4 'Structure model' database_2     
5 4 'Structure model' struct_site    
# 
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' 
3 4 'Structure model' '_struct_site.pdbx_auth_asym_id'      
4 4 'Structure model' '_struct_site.pdbx_auth_comp_id'      
5 4 'Structure model' '_struct_site.pdbx_auth_seq_id'       
# 
_pdbx_database_status.entry_id                        3NPN 
_pdbx_database_status.deposit_site                    RCSB 
_pdbx_database_status.process_site                    RCSB 
_pdbx_database_status.recvd_initial_deposition_date   2010-06-28 
_pdbx_database_status.status_code                     REL 
_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.methods_development_category    ? 
_pdbx_database_status.status_code_nmr_data            ? 
# 
loop_
_audit_author.name 
_audit_author.pdbx_ordinal 
'Reyes, F.E.'   1 
'Edwards, A.E.' 2 
'Batey, R.T.'   3 
# 
_citation.id                        primary 
_citation.title                     'Structural basis for recognition of S-adenosylhomocysteine by riboswitches.' 
_citation.journal_abbrev            Rna 
_citation.journal_volume            16 
_citation.page_first                2144 
_citation.page_last                 2155 
_citation.year                      2010 
_citation.journal_id_ASTM           RNARFU 
_citation.country                   UK 
_citation.journal_id_ISSN           1355-8382 
_citation.journal_id_CSD            2122 
_citation.book_publisher            ? 
_citation.pdbx_database_id_PubMed   20864509 
_citation.pdbx_database_id_DOI      10.1261/rna.2341610 
# 
loop_
_citation_author.citation_id 
_citation_author.name 
_citation_author.ordinal 
_citation_author.identifier_ORCID 
primary 'Edwards, A.L.' 1 ? 
primary 'Reyes, F.E.'   2 ? 
primary 'Heroux, A.'    3 ? 
primary 'Batey, R.T.'   4 ? 
# 
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 'S-ADENOSYLHOMOCYSTEINE RIBOSWITCH' 17498.516 1 ? ? RNA ? 
2 non-polymer syn S-ADENOSYL-L-HOMOCYSTEINE           384.411   1 ? ? ?   ? 
# 
_entity_poly.entity_id                      1 
_entity_poly.type                           polyribonucleotide 
_entity_poly.nstd_linkage                   no 
_entity_poly.nstd_monomer                   no 
_entity_poly.pdbx_seq_one_letter_code       GGACGAGGAGCGUUGCAAGCGAAAGCCCAGGCUAGUCCGUUCAAACGGCGCUCA 
_entity_poly.pdbx_seq_one_letter_code_can   GGACGAGGAGCGUUGCAAGCGAAAGCCCAGGCUAGUCCGUUCAAACGGCGCUCA 
_entity_poly.pdbx_strand_id                 A 
_entity_poly.pdbx_target_identifier         ? 
# 
_pdbx_entity_nonpoly.entity_id   2 
_pdbx_entity_nonpoly.name        S-ADENOSYL-L-HOMOCYSTEINE 
_pdbx_entity_nonpoly.comp_id     SAH 
# 
loop_
_entity_poly_seq.entity_id 
_entity_poly_seq.num 
_entity_poly_seq.mon_id 
_entity_poly_seq.hetero 
1 1  G n 
1 2  G n 
1 3  A n 
1 4  C n 
1 5  G n 
1 6  A n 
1 7  G n 
1 8  G n 
1 9  A n 
1 10 G n 
1 11 C n 
1 12 G n 
1 13 U n 
1 14 U n 
1 15 G n 
1 16 C n 
1 17 A n 
1 18 A n 
1 19 G n 
1 20 C n 
1 21 G n 
1 22 A n 
1 23 A n 
1 24 A n 
1 25 G n 
1 26 C n 
1 27 C n 
1 28 C n 
1 29 A n 
1 30 G n 
1 31 G n 
1 32 C n 
1 33 U n 
1 34 A n 
1 35 G n 
1 36 U n 
1 37 C n 
1 38 C n 
1 39 G n 
1 40 U n 
1 41 U n 
1 42 C n 
1 43 A n 
1 44 A n 
1 45 A n 
1 46 C n 
1 47 G n 
1 48 G n 
1 49 C n 
1 50 G n 
1 51 C n 
1 52 U n 
1 53 C n 
1 54 A n 
# 
_pdbx_entity_src_syn.entity_id              1 
_pdbx_entity_src_syn.pdbx_src_id            1 
_pdbx_entity_src_syn.pdbx_alt_source_flag   sample 
_pdbx_entity_src_syn.pdbx_beg_seq_num       ? 
_pdbx_entity_src_syn.pdbx_end_seq_num       ? 
_pdbx_entity_src_syn.organism_scientific    'Ralstonia solanacearum' 
_pdbx_entity_src_syn.organism_common_name   ? 
_pdbx_entity_src_syn.ncbi_taxonomy_id       305 
_pdbx_entity_src_syn.details                'RNA was prepared by in vitro transcription with T7 RNA polymerase' 
# 
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 
A   'RNA linking'       y "ADENOSINE-5'-MONOPHOSPHATE" ? 'C10 H14 N5 O7 P' 347.221 
C   'RNA linking'       y "CYTIDINE-5'-MONOPHOSPHATE"  ? 'C9 H14 N3 O8 P'  323.197 
G   'RNA linking'       y "GUANOSINE-5'-MONOPHOSPHATE" ? 'C10 H14 N5 O8 P' 363.221 
SAH 'L-peptide linking' n S-ADENOSYL-L-HOMOCYSTEINE    ? 'C14 H20 N6 O5 S' 384.411 
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  G 1  1  1  G G A . n 
A 1 2  G 2  2  2  G G A . n 
A 1 3  A 3  3  3  A A A . n 
A 1 4  C 4  4  4  C C A . n 
A 1 5  G 5  5  5  G G A . n 
A 1 6  A 6  6  6  A A A . n 
A 1 7  G 7  7  7  G G A . n 
A 1 8  G 8  8  8  G G A . n 
A 1 9  A 9  9  9  A A A . n 
A 1 10 G 10 10 10 G G A . n 
A 1 11 C 11 11 11 C C A . n 
A 1 12 G 12 12 12 G G A . n 
A 1 13 U 13 13 13 U U A . n 
A 1 14 U 14 14 14 U U A . n 
A 1 15 G 15 15 15 G G A . n 
A 1 16 C 16 16 16 C C A . n 
A 1 17 A 17 17 17 A A A . n 
A 1 18 A 18 18 18 A A A . n 
A 1 19 G 19 19 19 G G A . n 
A 1 20 C 20 20 20 C C A . n 
A 1 21 G 21 21 21 G G A . n 
A 1 22 A 22 22 22 A A A . n 
A 1 23 A 23 23 23 A A A . n 
A 1 24 A 24 24 24 A A A . n 
A 1 25 G 25 25 25 G G A . n 
A 1 26 C 26 26 26 C C A . n 
A 1 27 C 27 27 27 C C A . n 
A 1 28 C 28 28 28 C C A . n 
A 1 29 A 29 29 29 A A A . n 
A 1 30 G 30 30 30 G G A . n 
A 1 31 G 31 31 31 G G A . n 
A 1 32 C 32 32 32 C C A . n 
A 1 33 U 33 33 33 U U A . n 
A 1 34 A 34 34 34 A A A . n 
A 1 35 G 35 35 35 G G A . n 
A 1 36 U 36 36 36 U U A . n 
A 1 37 C 37 37 37 C C A . n 
A 1 38 C 38 38 38 C C A . n 
A 1 39 G 39 39 39 G G A . n 
A 1 40 U 40 40 ?  ? ? A . n 
A 1 41 U 41 41 ?  ? ? A . n 
A 1 42 C 42 42 ?  ? ? A . n 
A 1 43 A 43 43 ?  ? ? A . n 
A 1 44 A 44 44 44 A A A . n 
A 1 45 A 45 45 45 A A A . n 
A 1 46 C 46 46 46 C C A . n 
A 1 47 G 47 47 47 G G A . n 
A 1 48 G 48 48 48 G G A . n 
A 1 49 C 49 49 49 C C A . n 
A 1 50 G 50 50 50 G G A . n 
A 1 51 C 51 51 51 C C A . n 
A 1 52 U 52 52 52 U U A . n 
A 1 53 C 53 53 53 C C A . n 
A 1 54 A 54 54 54 A A A . n 
# 
_pdbx_nonpoly_scheme.asym_id         B 
_pdbx_nonpoly_scheme.entity_id       2 
_pdbx_nonpoly_scheme.mon_id          SAH 
_pdbx_nonpoly_scheme.ndb_seq_num     1 
_pdbx_nonpoly_scheme.pdb_seq_num     55 
_pdbx_nonpoly_scheme.auth_seq_num    1 
_pdbx_nonpoly_scheme.pdb_mon_id      SAH 
_pdbx_nonpoly_scheme.auth_mon_id     SAH 
_pdbx_nonpoly_scheme.pdb_strand_id   A 
_pdbx_nonpoly_scheme.pdb_ins_code    . 
# 
loop_
_software.name 
_software.version 
_software.date 
_software.type 
_software.contact_author 
_software.contact_author_email 
_software.classification 
_software.location 
_software.language 
_software.citation_id 
_software.pdbx_ordinal 
SCALA       3.3.12          2009/01/20      other   'Phil R. Evans'         pre@mrc-lmb.cam.ac.uk       'data scaling'    
http://www.ccp4.ac.uk/dist/html/scala.html   Fortran_77 ? 1 
PHASER      .               ?               program 'Randy J. Read'         cimr-phaser@lists.cam.ac.uk phasing           
http://www-structmed.cimr.cam.ac.uk/phaser/  ?          ? 2 
RESOLVE     2.14            14-Jan-2009     program 'Thomas C. Terwilliger' terwilliger@lanl.gov        phasing           
http://www.solve.lanl.gov/                   ?          ? 3 
REFMAC      refmac_5.5.0102 24/04/2001      program 'Garib N. Murshudov'    garib@ysbl.york.ac.uk       refinement        
http://www.ccp4.ac.uk/dist/html/refmac5.html Fortran_77 ? 4 
PDB_EXTRACT 3.006           'June 11, 2008' package PDB                     help@deposit.rcsb.org       'data extraction' 
http://sw-tools.pdb.org/apps/PDB_EXTRACT/    C++        ? 5 
DENZO       .               ?               ?       ?                       ?                           'data reduction'  ? ? ? 6 
SCALEPACK   .               ?               ?       ?                       ?                           'data scaling'    ? ? ? 7 
# 
_cell.entry_id           3NPN 
_cell.length_a           105.360 
_cell.length_b           105.360 
_cell.length_c           107.780 
_cell.angle_alpha        90.000 
_cell.angle_beta         90.000 
_cell.angle_gamma        120.000 
_cell.pdbx_unique_axis   ? 
_cell.Z_PDB              18 
_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                         3NPN 
_symmetry.space_group_name_H-M             'H 3 2' 
_symmetry.Int_Tables_number                155 
_symmetry.pdbx_full_space_group_name_H-M   ? 
_symmetry.cell_setting                     ? 
_symmetry.space_group_name_Hall            ? 
# 
_exptl.crystals_number   1 
_exptl.entry_id          3NPN 
_exptl.method            'X-RAY DIFFRACTION' 
# 
_exptl_crystal.id                    1 
_exptl_crystal.density_percent_sol   62.61 
_exptl_crystal.density_Matthews      3.29 
_exptl_crystal.density_meas          ? 
_exptl_crystal.description           ? 
_exptl_crystal.F_000                 ? 
_exptl_crystal.preparation           ? 
# 
_exptl_crystal_grow.crystal_id      1 
_exptl_crystal_grow.method          'hanging drop' 
_exptl_crystal_grow.pH              7.0 
_exptl_crystal_grow.temp            298 
_exptl_crystal_grow.pdbx_details    
;2.25 mM Spermine, 9 mM magnesium chloride, 0.9 mM spermidine, 1.8 mM Cobalt(III)hexammine chloride, 0.05 M sodium cacodylate pH 7.0, 5% (v/v) PEG 400, 20 mM iridium (III) hexammine chloride, hanging drop, temperature 298K
;
_exptl_crystal_grow.temp_details    ? 
_exptl_crystal_grow.pdbx_pH_range   ? 
# 
_diffrn.id                     1 
_diffrn.ambient_temp           100 
_diffrn.ambient_temp_details   ? 
_diffrn.crystal_id             1 
# 
_diffrn_detector.diffrn_id              1 
_diffrn_detector.detector               CCD 
_diffrn_detector.type                   'ADSC QUANTUM 315' 
_diffrn_detector.pdbx_collection_date   2009-06-03 
_diffrn_detector.details                ? 
# 
_diffrn_radiation.diffrn_id                        1 
_diffrn_radiation.pdbx_diffrn_protocol             'SINGLE WAVELENGTH' 
_diffrn_radiation.monochromator                    ? 
_diffrn_radiation.wavelength_id                    1 
_diffrn_radiation.pdbx_monochromatic_or_laue_m_l   M 
_diffrn_radiation.pdbx_scattering_type             x-ray 
# 
_diffrn_radiation_wavelength.id           1 
_diffrn_radiation_wavelength.wavelength   1.1051 
_diffrn_radiation_wavelength.wt           1.0 
# 
_diffrn_source.diffrn_id                   1 
_diffrn_source.source                      SYNCHROTRON 
_diffrn_source.type                        'NSLS BEAMLINE X25' 
_diffrn_source.pdbx_wavelength_list        1.1051 
_diffrn_source.pdbx_wavelength             ? 
_diffrn_source.pdbx_synchrotron_site       NSLS 
_diffrn_source.pdbx_synchrotron_beamline   X25 
# 
_reflns.entry_id                     3NPN 
_reflns.d_resolution_high            2.775 
_reflns.d_resolution_low             29.059 
_reflns.number_all                   5865 
_reflns.number_obs                   5854 
_reflns.pdbx_netI_over_sigmaI        4.058 
_reflns.pdbx_Rsym_value              0.123 
_reflns.pdbx_redundancy              5.600 
_reflns.percent_possible_obs         99.800 
_reflns.observed_criterion_sigma_F   ? 
_reflns.observed_criterion_sigma_I   ? 
_reflns.pdbx_Rmerge_I_obs            ? 
_reflns.B_iso_Wilson_estimate        ? 
_reflns.R_free_details               ? 
_reflns.limit_h_max                  ? 
_reflns.limit_h_min                  ? 
_reflns.limit_k_max                  ? 
_reflns.limit_k_min                  ? 
_reflns.limit_l_max                  ? 
_reflns.limit_l_min                  ? 
_reflns.observed_criterion_F_max     ? 
_reflns.observed_criterion_F_min     ? 
_reflns.pdbx_chi_squared             ? 
_reflns.pdbx_scaling_rejects         ? 
_reflns.pdbx_diffrn_id               1 
_reflns.pdbx_ordinal                 1 
# 
loop_
_reflns_shell.d_res_high 
_reflns_shell.d_res_low 
_reflns_shell.number_measured_obs 
_reflns_shell.number_measured_all 
_reflns_shell.number_unique_obs 
_reflns_shell.Rmerge_I_obs 
_reflns_shell.meanI_over_sigI_obs 
_reflns_shell.pdbx_Rsym_value 
_reflns_shell.pdbx_chi_squared 
_reflns_shell.pdbx_redundancy 
_reflns_shell.percent_possible_obs 
_reflns_shell.number_unique_all 
_reflns_shell.percent_possible_all 
_reflns_shell.pdbx_diffrn_id 
_reflns_shell.pdbx_ordinal 
2.775 2.94  ? 4868 ? 0.010 0.7  1.001 ? 5.70 ? 852 99.90  ? 1  
2.94  3.12  ? 4499 ? 0.010 1.4  0.430 ? 5.70 ? 785 100.00 ? 2  
3.12  3.34  ? 4306 ? 0.010 2.0  0.277 ? 5.70 ? 751 100.00 ? 3  
3.34  3.60  ? 3979 ? 0.010 2.5  0.219 ? 5.70 ? 698 100.00 ? 4  
3.60  3.95  ? 3671 ? 0.010 3.5  0.154 ? 5.60 ? 652 99.90  ? 5  
3.95  4.41  ? 3323 ? 0.010 5.4  0.108 ? 5.60 ? 596 100.00 ? 6  
4.41  5.10  ? 2885 ? 0.010 5.9  0.100 ? 5.60 ? 514 99.70  ? 7  
5.10  6.24  ? 2468 ? 0.010 4.7  0.127 ? 5.40 ? 456 99.90  ? 8  
6.24  8.83  ? 1817 ? 0.010 9.7  0.054 ? 5.10 ? 355 100.00 ? 9  
8.83  29.68 ? 1048 ? 0.010 11.0 0.053 ? 5.40 ? 195 94.90  ? 10 
# 
_refine.entry_id                                 3NPN 
_refine.ls_d_res_high                            2.792 
_refine.ls_d_res_low                             29.059 
_refine.pdbx_ls_sigma_F                          0.00 
_refine.ls_percent_reflns_obs                    99.690 
_refine.ls_number_reflns_obs                     5847 
_refine.pdbx_ls_cross_valid_method               THROUGHOUT 
_refine.pdbx_R_Free_selection_details            RANDOM 
_refine.details                                  
;HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS   
 U VALUES      : RESIDUAL ONLY
;
_refine.ls_R_factor_obs                          0.256 
_refine.ls_R_factor_R_work                       0.252 
_refine.ls_wR_factor_R_work                      0.265 
_refine.ls_R_factor_R_free                       0.292 
_refine.ls_wR_factor_R_free                      0.302 
_refine.ls_percent_reflns_R_free                 11.400 
_refine.ls_number_reflns_R_free                  665 
_refine.B_iso_mean                               78.290 
_refine.aniso_B[1][1]                            0.980 
_refine.aniso_B[2][2]                            0.980 
_refine.aniso_B[3][3]                            -1.460 
_refine.aniso_B[1][2]                            0.490 
_refine.aniso_B[1][3]                            0.000 
_refine.aniso_B[2][3]                            0.000 
_refine.correlation_coeff_Fo_to_Fc               0.930 
_refine.correlation_coeff_Fo_to_Fc_free          0.900 
_refine.pdbx_overall_ESU_R_Free                  0.392 
_refine.overall_SU_ML                            0.322 
_refine.overall_SU_B                             36.426 
_refine.solvent_model_details                    MASK 
_refine.pdbx_solvent_vdw_probe_radii             1.400 
_refine.pdbx_solvent_ion_probe_radii             0.800 
_refine.pdbx_solvent_shrinkage_radii             0.800 
_refine.pdbx_method_to_determine_struct          SAD 
_refine.pdbx_stereochemistry_target_values       'MAXIMUM LIKELIHOOD' 
_refine.B_iso_max                                88.54 
_refine.B_iso_min                                41.97 
_refine.occupancy_max                            1.00 
_refine.occupancy_min                            1.00 
_refine.pdbx_ls_sigma_I                          ? 
_refine.ls_number_reflns_all                     ? 
_refine.ls_R_factor_all                          ? 
_refine.ls_redundancy_reflns_obs                 ? 
_refine.pdbx_data_cutoff_high_absF               ? 
_refine.pdbx_data_cutoff_low_absF                ? 
_refine.ls_number_parameters                     ? 
_refine.ls_number_restraints                     ? 
_refine.ls_R_factor_R_free_error                 ? 
_refine.ls_R_factor_R_free_error_details         ? 
_refine.pdbx_starting_model                      ? 
_refine.pdbx_stereochem_target_val_spec_case     ? 
_refine.solvent_model_param_bsol                 ? 
_refine.solvent_model_param_ksol                 ? 
_refine.pdbx_isotropic_thermal_model             ? 
_refine.overall_SU_R_Cruickshank_DPI             ? 
_refine.overall_SU_R_free                        ? 
_refine.pdbx_data_cutoff_high_rms_absF           ? 
_refine.overall_FOM_free_R_set                   ? 
_refine.overall_FOM_work_R_set                   ? 
_refine.pdbx_overall_phase_error                 ? 
_refine.pdbx_refine_id                           'X-RAY DIFFRACTION' 
_refine.pdbx_overall_ESU_R                       0.885 
_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   1080 
_refine_hist.pdbx_number_atoms_ligand         26 
_refine_hist.number_atoms_solvent             0 
_refine_hist.number_atoms_total               1106 
_refine_hist.d_res_high                       2.792 
_refine_hist.d_res_low                        29.059 
# 
loop_
_refine_ls_restr.type 
_refine_ls_restr.number 
_refine_ls_restr.dev_ideal 
_refine_ls_restr.dev_ideal_target 
_refine_ls_restr.weight 
_refine_ls_restr.pdbx_refine_id 
_refine_ls_restr.pdbx_restraint_function 
r_bond_refined_d     1237 0.005 0.021 ? 'X-RAY DIFFRACTION' ? 
r_angle_refined_deg  1923 0.970 3.000 ? 'X-RAY DIFFRACTION' ? 
r_chiral_restr       255  0.042 0.200 ? 'X-RAY DIFFRACTION' ? 
r_gen_planes_refined 545  0.002 0.020 ? 'X-RAY DIFFRACTION' ? 
r_mcbond_it          5    0.023 1.500 ? 'X-RAY DIFFRACTION' ? 
r_mcangle_it         7    0.071 2.000 ? 'X-RAY DIFFRACTION' ? 
r_scbond_it          1232 0.281 3.000 ? 'X-RAY DIFFRACTION' ? 
r_scangle_it         1916 0.489 4.500 ? 'X-RAY DIFFRACTION' ? 
# 
loop_
_refine_ls_shell.pdbx_total_number_of_bins_used 
_refine_ls_shell.d_res_low 
_refine_ls_shell.d_res_high 
_refine_ls_shell.number_reflns_all 
_refine_ls_shell.percent_reflns_obs 
_refine_ls_shell.number_reflns_R_work 
_refine_ls_shell.R_factor_R_work 
_refine_ls_shell.number_reflns_R_free 
_refine_ls_shell.R_factor_R_free 
_refine_ls_shell.number_reflns_obs 
_refine_ls_shell.R_factor_R_free_error 
_refine_ls_shell.percent_reflns_R_free 
_refine_ls_shell.redundancy_reflns_obs 
_refine_ls_shell.R_factor_all 
_refine_ls_shell.pdbx_refine_id 
20 2.864  2.792  409 99.756  366 0.490 42 0.325 . . . . . 'X-RAY DIFFRACTION' 
20 2.942  2.864  431 99.536  376 0.433 53 0.514 . . . . . 'X-RAY DIFFRACTION' 
20 3.026  2.942  388 100.000 340 0.374 48 0.384 . . . . . 'X-RAY DIFFRACTION' 
20 3.118  3.026  396 100.000 343 0.276 53 0.370 . . . . . 'X-RAY DIFFRACTION' 
20 3.219  3.118  374 99.465  323 0.284 49 0.298 . . . . . 'X-RAY DIFFRACTION' 
20 3.331  3.219  364 99.725  326 0.242 37 0.213 . . . . . 'X-RAY DIFFRACTION' 
20 3.455  3.331  353 99.717  307 0.252 45 0.294 . . . . . 'X-RAY DIFFRACTION' 
20 3.593  3.455  356 99.719  318 0.272 37 0.251 . . . . . 'X-RAY DIFFRACTION' 
20 3.751  3.593  333 99.700  291 0.241 41 0.263 . . . . . 'X-RAY DIFFRACTION' 
20 3.930  3.751  320 100.000 285 0.258 35 0.302 . . . . . 'X-RAY DIFFRACTION' 
20 4.139  3.930  289 100.000 256 0.226 33 0.210 . . . . . 'X-RAY DIFFRACTION' 
20 4.384  4.139  291 100.000 256 0.227 35 0.320 . . . . . 'X-RAY DIFFRACTION' 
20 4.679  4.384  265 100.000 232 0.228 33 0.362 . . . . . 'X-RAY DIFFRACTION' 
20 5.044  4.679  263 99.240  237 0.220 24 0.260 . . . . . 'X-RAY DIFFRACTION' 
20 5.508  5.044  230 99.565  203 0.223 26 0.248 . . . . . 'X-RAY DIFFRACTION' 
20 6.131  5.508  210 100.000 193 0.260 17 0.332 . . . . . 'X-RAY DIFFRACTION' 
20 7.028  6.131  202 100.000 176 0.257 26 0.258 . . . . . 'X-RAY DIFFRACTION' 
20 8.484  7.028  159 100.000 142 0.273 17 0.429 . . . . . 'X-RAY DIFFRACTION' 
20 11.517 8.484  142 100.000 135 0.202 7  0.226 . . . . . 'X-RAY DIFFRACTION' 
20 29.059 11.517 90  93.333  77  0.220 7  0.267 . . . . . 'X-RAY DIFFRACTION' 
# 
_struct.entry_id                  3NPN 
_struct.title                     'Structure of the s-adenosylhomocysteine riboswitch at 3.0A' 
_struct.pdbx_model_details        ? 
_struct.pdbx_CASP_flag            ? 
_struct.pdbx_model_type_details   ? 
# 
_struct_keywords.entry_id        3NPN 
_struct_keywords.text            'RNA, riboswitch, S-adenosyl-homocysteine' 
_struct_keywords.pdbx_keywords   RNA 
# 
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 ? 
# 
_struct_ref.id                         1 
_struct_ref.db_name                    PDB 
_struct_ref.db_code                    3NPN 
_struct_ref.pdbx_db_accession          3NPN 
_struct_ref.entity_id                  1 
_struct_ref.pdbx_seq_one_letter_code   GGACGAGGAGCGUUGCAAGCGAAAGCCCAGGCUAGUCCGUUCAAACGGCGCUCA 
_struct_ref.pdbx_align_begin           1 
_struct_ref.pdbx_db_isoform            ? 
# 
_struct_ref_seq.align_id                      1 
_struct_ref_seq.ref_id                        1 
_struct_ref_seq.pdbx_PDB_id_code              3NPN 
_struct_ref_seq.pdbx_strand_id                A 
_struct_ref_seq.seq_align_beg                 1 
_struct_ref_seq.pdbx_seq_align_beg_ins_code   ? 
_struct_ref_seq.seq_align_end                 54 
_struct_ref_seq.pdbx_seq_align_end_ins_code   ? 
_struct_ref_seq.pdbx_db_accession             3NPN 
_struct_ref_seq.db_align_beg                  1 
_struct_ref_seq.pdbx_db_align_beg_ins_code    ? 
_struct_ref_seq.db_align_end                  54 
_struct_ref_seq.pdbx_db_align_end_ins_code    ? 
_struct_ref_seq.pdbx_auth_seq_align_beg       1 
_struct_ref_seq.pdbx_auth_seq_align_end       54 
# 
_pdbx_struct_assembly.id                   1 
_pdbx_struct_assembly.details              author_and_software_defined_assembly 
_pdbx_struct_assembly.method_details       PISA 
_pdbx_struct_assembly.oligomeric_details   monomeric 
_pdbx_struct_assembly.oligomeric_count     1 
# 
_pdbx_struct_assembly_gen.assembly_id       1 
_pdbx_struct_assembly_gen.oper_expression   1 
_pdbx_struct_assembly_gen.asym_id_list      A,B 
# 
_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 C 4  N3 ? ? ? 1_555 A G 35 N1 ? ? A C 4  A G 35 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog2  hydrog ? ? A C 4  N4 ? ? ? 1_555 A G 35 O6 ? ? A C 4  A G 35 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog3  hydrog ? ? A C 4  O2 ? ? ? 1_555 A G 35 N2 ? ? A C 4  A G 35 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog4  hydrog ? ? A G 5  N1 ? ? ? 1_555 A A 34 N1 ? ? A G 5  A A 34 1_555 ? ? ? ? ? ? 'G-A MISPAIR'        ? ? ? 
hydrog5  hydrog ? ? A A 6  N1 ? ? ? 1_555 A U 33 N3 ? ? A A 6  A U 33 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog6  hydrog ? ? A A 6  N6 ? ? ? 1_555 A U 33 O4 ? ? A A 6  A U 33 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog7  hydrog ? ? A G 7  N1 ? ? ? 1_555 A C 32 N3 ? ? A G 7  A C 32 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog8  hydrog ? ? A G 7  N2 ? ? ? 1_555 A C 32 O2 ? ? A G 7  A C 32 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog9  hydrog ? ? A G 7  O6 ? ? ? 1_555 A C 32 N4 ? ? A G 7  A C 32 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog10 hydrog ? ? A G 7  N2 ? ? ? 1_555 A A 45 N1 ? ? A G 7  A A 45 1_555 ? ? ? ? ? ? TYPE_10_PAIR         ? ? ? 
hydrog11 hydrog ? ? A G 7  N3 ? ? ? 1_555 A A 45 N6 ? ? A G 7  A A 45 1_555 ? ? ? ? ? ? TYPE_10_PAIR         ? ? ? 
hydrog12 hydrog ? ? A G 7  N2 ? ? ? 1_555 A C 46 O2 ? ? A G 7  A C 46 1_555 ? ? ? ? ? ? 'G-C PAIR'           ? ? ? 
hydrog13 hydrog ? ? A G 8  N1 ? ? ? 1_555 A C 53 O2 ? ? A G 8  A C 53 1_555 ? ? ? ? ? ? 'G-C PAIR'           ? ? ? 
hydrog14 hydrog ? ? A A 9  N1 ? ? ? 1_555 A U 52 N3 ? ? A A 9  A U 52 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog15 hydrog ? ? A A 9  N6 ? ? ? 1_555 A U 52 O4 ? ? A A 9  A U 52 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog16 hydrog ? ? A G 10 N1 ? ? ? 1_555 A C 51 N3 ? ? A G 10 A C 51 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog17 hydrog ? ? A G 10 N2 ? ? ? 1_555 A C 51 O2 ? ? A G 10 A C 51 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog18 hydrog ? ? A G 10 O6 ? ? ? 1_555 A C 51 N4 ? ? A G 10 A C 51 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog19 hydrog ? ? A C 11 O2 ? ? ? 1_555 A G 50 N2 ? ? A C 11 A G 50 1_555 ? ? ? ? ? ? 'C-G PAIR'           ? ? ? 
hydrog20 hydrog ? ? A G 12 N1 ? ? ? 1_555 A C 49 N3 ? ? A G 12 A C 49 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog21 hydrog ? ? A G 12 N2 ? ? ? 1_555 A C 49 O2 ? ? A G 12 A C 49 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog22 hydrog ? ? A G 12 O6 ? ? ? 1_555 A C 49 N4 ? ? A G 12 A C 49 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog23 hydrog ? ? A U 13 O2 ? ? ? 1_555 A G 48 N2 ? ? A U 13 A G 48 1_555 ? ? ? ? ? ? 'U-G MISPAIR'        ? ? ? 
hydrog24 hydrog ? ? A U 14 N3 ? ? ? 1_555 A A 29 N7 ? ? A U 14 A A 29 1_555 ? ? ? ? ? ? 'REVERSED HOOGSTEEN' ? ? ? 
hydrog25 hydrog ? ? A U 14 O2 ? ? ? 1_555 A A 29 N6 ? ? A U 14 A A 29 1_555 ? ? ? ? ? ? 'REVERSED HOOGSTEEN' ? ? ? 
hydrog26 hydrog ? ? A C 16 N4 ? ? ? 1_555 A C 28 O2 ? ? A C 16 A C 28 1_555 ? ? ? ? ? ? 'C-C MISPAIR'        ? ? ? 
hydrog27 hydrog ? ? A C 16 N3 ? ? ? 1_555 A G 31 N1 ? ? A C 16 A G 31 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog28 hydrog ? ? A C 16 N4 ? ? ? 1_555 A G 31 O6 ? ? A C 16 A G 31 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog29 hydrog ? ? A C 16 O2 ? ? ? 1_555 A G 31 N2 ? ? A C 16 A G 31 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog30 hydrog ? ? A A 17 N6 ? ? ? 1_555 A C 28 O2 ? ? A A 17 A C 28 1_555 ? ? ? ? ? ? 'A-C MISPAIR'        ? ? ? 
hydrog31 hydrog ? ? A A 18 N6 ? ? ? 1_555 A C 27 O2 ? ? A A 18 A C 27 1_555 ? ? ? ? ? ? 'A-C MISPAIR'        ? ? ? 
hydrog32 hydrog ? ? A G 19 N1 ? ? ? 1_555 A C 26 N3 ? ? A G 19 A C 26 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog33 hydrog ? ? A G 19 N2 ? ? ? 1_555 A C 26 O2 ? ? A G 19 A C 26 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog34 hydrog ? ? A G 19 O6 ? ? ? 1_555 A C 26 N4 ? ? A G 19 A C 26 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog35 hydrog ? ? A C 20 N3 ? ? ? 1_555 A G 25 N1 ? ? A C 20 A G 25 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog36 hydrog ? ? A C 20 N4 ? ? ? 1_555 A G 25 O6 ? ? A C 20 A G 25 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog37 hydrog ? ? A C 20 O2 ? ? ? 1_555 A G 25 N2 ? ? A C 20 A G 25 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog38 hydrog ? ? A G 21 N2 ? ? ? 1_555 A A 24 N7 ? ? A G 21 A A 24 1_555 ? ? ? ? ? ? 'G-A MISPAIR'        ? ? ? 
hydrog39 hydrog ? ? A G 30 N1 ? ? ? 1_555 A C 46 N3 ? ? A G 30 A C 46 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog40 hydrog ? ? A G 30 N2 ? ? ? 1_555 A C 46 O2 ? ? A G 30 A C 46 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog41 hydrog ? ? A G 30 O6 ? ? ? 1_555 A C 46 N4 ? ? A G 30 A C 46 1_555 ? ? ? ? ? ? WATSON-CRICK         ? ? ? 
hydrog42 hydrog ? ? A U 33 O2 ? ? ? 1_555 A A 44 N6 ? ? A U 33 A A 44 1_555 ? ? ? ? ? ? 'U-A PAIR'           ? ? ? 
# 
_struct_conn_type.id          hydrog 
_struct_conn_type.criteria    ? 
_struct_conn_type.reference   ? 
# 
_struct_site.id                   AC1 
_struct_site.pdbx_evidence_code   Software 
_struct_site.pdbx_auth_asym_id    A 
_struct_site.pdbx_auth_comp_id    SAH 
_struct_site.pdbx_auth_seq_id     55 
_struct_site.pdbx_auth_ins_code   ? 
_struct_site.pdbx_num_residues    7 
_struct_site.details              'BINDING SITE FOR RESIDUE SAH A 55' 
# 
loop_
_struct_site_gen.id 
_struct_site_gen.site_id 
_struct_site_gen.pdbx_num_res 
_struct_site_gen.label_comp_id 
_struct_site_gen.label_asym_id 
_struct_site_gen.label_seq_id 
_struct_site_gen.pdbx_auth_ins_code 
_struct_site_gen.auth_comp_id 
_struct_site_gen.auth_asym_id 
_struct_site_gen.auth_seq_id 
_struct_site_gen.label_atom_id 
_struct_site_gen.label_alt_id 
_struct_site_gen.symmetry 
_struct_site_gen.details 
1 AC1 7 G A 15 ? G A 15 . ? 1_555 ? 
2 AC1 7 C A 16 ? C A 16 . ? 1_555 ? 
3 AC1 7 A A 29 ? A A 29 . ? 1_555 ? 
4 AC1 7 G A 30 ? G A 30 . ? 1_555 ? 
5 AC1 7 G A 31 ? G A 31 . ? 1_555 ? 
6 AC1 7 C A 32 ? C A 32 . ? 1_555 ? 
7 AC1 7 G A 47 ? G A 47 . ? 1_555 ? 
# 
_pdbx_validate_rmsd_angle.id                         1 
_pdbx_validate_rmsd_angle.PDB_model_num              1 
_pdbx_validate_rmsd_angle.auth_atom_id_1             "C3'" 
_pdbx_validate_rmsd_angle.auth_asym_id_1             A 
_pdbx_validate_rmsd_angle.auth_comp_id_1             G 
_pdbx_validate_rmsd_angle.auth_seq_id_1              35 
_pdbx_validate_rmsd_angle.PDB_ins_code_1             ? 
_pdbx_validate_rmsd_angle.label_alt_id_1             ? 
_pdbx_validate_rmsd_angle.auth_atom_id_2             "O3'" 
_pdbx_validate_rmsd_angle.auth_asym_id_2             A 
_pdbx_validate_rmsd_angle.auth_comp_id_2             G 
_pdbx_validate_rmsd_angle.auth_seq_id_2              35 
_pdbx_validate_rmsd_angle.PDB_ins_code_2             ? 
_pdbx_validate_rmsd_angle.label_alt_id_2             ? 
_pdbx_validate_rmsd_angle.auth_atom_id_3             P 
_pdbx_validate_rmsd_angle.auth_asym_id_3             A 
_pdbx_validate_rmsd_angle.auth_comp_id_3             U 
_pdbx_validate_rmsd_angle.auth_seq_id_3              36 
_pdbx_validate_rmsd_angle.PDB_ins_code_3             ? 
_pdbx_validate_rmsd_angle.label_alt_id_3             ? 
_pdbx_validate_rmsd_angle.angle_value                127.63 
_pdbx_validate_rmsd_angle.angle_target_value         119.70 
_pdbx_validate_rmsd_angle.angle_deviation            7.93 
_pdbx_validate_rmsd_angle.angle_standard_deviation   1.20 
_pdbx_validate_rmsd_angle.linker_flag                Y 
# 
_pdbx_refine_tls.id               1 
_pdbx_refine_tls.details          ? 
_pdbx_refine_tls.method           refined 
_pdbx_refine_tls.origin_x         122.7474 
_pdbx_refine_tls.origin_y         68.5031 
_pdbx_refine_tls.origin_z         -4.2619 
_pdbx_refine_tls.T[1][1]          0.2038 
_pdbx_refine_tls.T[2][2]          0.2335 
_pdbx_refine_tls.T[3][3]          0.1684 
_pdbx_refine_tls.T[1][2]          -0.0117 
_pdbx_refine_tls.T[1][3]          0.0418 
_pdbx_refine_tls.T[2][3]          0.0443 
_pdbx_refine_tls.L[1][1]          0.3356 
_pdbx_refine_tls.L[2][2]          5.9404 
_pdbx_refine_tls.L[3][3]          0.9900 
_pdbx_refine_tls.L[1][2]          -0.6233 
_pdbx_refine_tls.L[1][3]          -0.1711 
_pdbx_refine_tls.L[2][3]          -0.0541 
_pdbx_refine_tls.S[1][1]          0.0070 
_pdbx_refine_tls.S[2][2]          -0.1574 
_pdbx_refine_tls.S[3][3]          0.1504 
_pdbx_refine_tls.S[1][2]          0.0791 
_pdbx_refine_tls.S[1][3]          0.1314 
_pdbx_refine_tls.S[2][3]          -0.6115 
_pdbx_refine_tls.S[2][1]          -0.1905 
_pdbx_refine_tls.S[3][1]          0.0737 
_pdbx_refine_tls.S[3][2]          0.0108 
_pdbx_refine_tls.pdbx_refine_id   'X-RAY DIFFRACTION' 
# 
_pdbx_refine_tls_group.id                  1 
_pdbx_refine_tls_group.refine_tls_id       1 
_pdbx_refine_tls_group.beg_auth_asym_id    A 
_pdbx_refine_tls_group.beg_auth_seq_id     -10 
_pdbx_refine_tls_group.end_auth_asym_id    A 
_pdbx_refine_tls_group.end_auth_seq_id     9999 
_pdbx_refine_tls_group.selection           ? 
_pdbx_refine_tls_group.beg_label_asym_id   . 
_pdbx_refine_tls_group.beg_label_seq_id    . 
_pdbx_refine_tls_group.end_label_asym_id   . 
_pdbx_refine_tls_group.end_label_seq_id    . 
_pdbx_refine_tls_group.pdbx_refine_id      'X-RAY DIFFRACTION' 
_pdbx_refine_tls_group.selection_details   ? 
# 
_pdbx_phasing_dm.entry_id          3NPN 
_pdbx_phasing_dm.fom_acentric      0.670 
_pdbx_phasing_dm.fom_centric       0.630 
_pdbx_phasing_dm.fom               0.670 
_pdbx_phasing_dm.reflns_acentric   5199 
_pdbx_phasing_dm.reflns_centric    651 
_pdbx_phasing_dm.reflns            5850 
# 
loop_
_pdbx_phasing_dm_shell.d_res_high 
_pdbx_phasing_dm_shell.d_res_low 
_pdbx_phasing_dm_shell.delta_phi_final 
_pdbx_phasing_dm_shell.delta_phi_initial 
_pdbx_phasing_dm_shell.fom_acentric 
_pdbx_phasing_dm_shell.fom_centric 
_pdbx_phasing_dm_shell.fom 
_pdbx_phasing_dm_shell.reflns_acentric 
_pdbx_phasing_dm_shell.reflns_centric 
_pdbx_phasing_dm_shell.reflns 
8.000 30.005 ? ? 0.970 0.940 0.960 201  70  271  
5.000 8.000  ? ? 0.920 0.860 0.910 680  133 813  
4.000 5.000  ? ? 0.840 0.710 0.820 891  114 1005 
3.500 4.000  ? ? 0.700 0.550 0.680 898  105 1003 
3.000 3.500  ? ? 0.530 0.420 0.520 1611 153 1764 
2.800 3.000  ? ? 0.490 0.370 0.480 918  76  994  
# 
_phasing.method   SAD 
# 
_phasing_MAD.entry_id               3NPN 
_phasing_MAD.pdbx_d_res_high        2.78 
_phasing_MAD.pdbx_d_res_low         30.00 
_phasing_MAD.pdbx_reflns_acentric   5194 
_phasing_MAD.pdbx_fom_acentric      0.518 
_phasing_MAD.pdbx_reflns_centric    651 
_phasing_MAD.pdbx_fom_centric       0.332 
_phasing_MAD.pdbx_reflns            5849 
_phasing_MAD.pdbx_fom               0.498 
# 
loop_
_pdbx_unobs_or_zero_occ_residues.id 
_pdbx_unobs_or_zero_occ_residues.PDB_model_num 
_pdbx_unobs_or_zero_occ_residues.polymer_flag 
_pdbx_unobs_or_zero_occ_residues.occupancy_flag 
_pdbx_unobs_or_zero_occ_residues.auth_asym_id 
_pdbx_unobs_or_zero_occ_residues.auth_comp_id 
_pdbx_unobs_or_zero_occ_residues.auth_seq_id 
_pdbx_unobs_or_zero_occ_residues.PDB_ins_code 
_pdbx_unobs_or_zero_occ_residues.label_asym_id 
_pdbx_unobs_or_zero_occ_residues.label_comp_id 
_pdbx_unobs_or_zero_occ_residues.label_seq_id 
1 1 Y 1 A U 40 ? A U 40 
2 1 Y 1 A U 41 ? A U 41 
3 1 Y 1 A C 42 ? A C 42 
4 1 Y 1 A A 43 ? A A 43 
# 
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 
A   OP3    O N N 1   
A   P      P N N 2   
A   OP1    O N N 3   
A   OP2    O N N 4   
A   "O5'"  O N N 5   
A   "C5'"  C N N 6   
A   "C4'"  C N R 7   
A   "O4'"  O N N 8   
A   "C3'"  C N S 9   
A   "O3'"  O N N 10  
A   "C2'"  C N R 11  
A   "O2'"  O N N 12  
A   "C1'"  C N R 13  
A   N9     N Y N 14  
A   C8     C Y N 15  
A   N7     N Y N 16  
A   C5     C Y N 17  
A   C6     C Y N 18  
A   N6     N N N 19  
A   N1     N Y N 20  
A   C2     C Y N 21  
A   N3     N Y N 22  
A   C4     C Y N 23  
A   HOP3   H N N 24  
A   HOP2   H N N 25  
A   "H5'"  H N N 26  
A   "H5''" H N N 27  
A   "H4'"  H N N 28  
A   "H3'"  H N N 29  
A   "HO3'" H N N 30  
A   "H2'"  H N N 31  
A   "HO2'" H N N 32  
A   "H1'"  H N N 33  
A   H8     H N N 34  
A   H61    H N N 35  
A   H62    H N N 36  
A   H2     H N N 37  
C   OP3    O N N 38  
C   P      P N N 39  
C   OP1    O N N 40  
C   OP2    O N N 41  
C   "O5'"  O N N 42  
C   "C5'"  C N N 43  
C   "C4'"  C N R 44  
C   "O4'"  O N N 45  
C   "C3'"  C N S 46  
C   "O3'"  O N N 47  
C   "C2'"  C N R 48  
C   "O2'"  O N N 49  
C   "C1'"  C N R 50  
C   N1     N N N 51  
C   C2     C N N 52  
C   O2     O N N 53  
C   N3     N N N 54  
C   C4     C N N 55  
C   N4     N N N 56  
C   C5     C N N 57  
C   C6     C N N 58  
C   HOP3   H N N 59  
C   HOP2   H N N 60  
C   "H5'"  H N N 61  
C   "H5''" H N N 62  
C   "H4'"  H N N 63  
C   "H3'"  H N N 64  
C   "HO3'" H N N 65  
C   "H2'"  H N N 66  
C   "HO2'" H N N 67  
C   "H1'"  H N N 68  
C   H41    H N N 69  
C   H42    H N N 70  
C   H5     H N N 71  
C   H6     H N N 72  
G   OP3    O N N 73  
G   P      P N N 74  
G   OP1    O N N 75  
G   OP2    O N N 76  
G   "O5'"  O N N 77  
G   "C5'"  C N N 78  
G   "C4'"  C N R 79  
G   "O4'"  O N N 80  
G   "C3'"  C N S 81  
G   "O3'"  O N N 82  
G   "C2'"  C N R 83  
G   "O2'"  O N N 84  
G   "C1'"  C N R 85  
G   N9     N Y N 86  
G   C8     C Y N 87  
G   N7     N Y N 88  
G   C5     C Y N 89  
G   C6     C N N 90  
G   O6     O N N 91  
G   N1     N N N 92  
G   C2     C N N 93  
G   N2     N N N 94  
G   N3     N N N 95  
G   C4     C Y N 96  
G   HOP3   H N N 97  
G   HOP2   H N N 98  
G   "H5'"  H N N 99  
G   "H5''" H N N 100 
G   "H4'"  H N N 101 
G   "H3'"  H N N 102 
G   "HO3'" H N N 103 
G   "H2'"  H N N 104 
G   "HO2'" H N N 105 
G   "H1'"  H N N 106 
G   H8     H N N 107 
G   H1     H N N 108 
G   H21    H N N 109 
G   H22    H N N 110 
SAH N      N N N 111 
SAH CA     C N S 112 
SAH CB     C N N 113 
SAH CG     C N N 114 
SAH SD     S N N 115 
SAH C      C N N 116 
SAH O      O N N 117 
SAH OXT    O N N 118 
SAH "C5'"  C N N 119 
SAH "C4'"  C N S 120 
SAH "O4'"  O N N 121 
SAH "C3'"  C N S 122 
SAH "O3'"  O N N 123 
SAH "C2'"  C N R 124 
SAH "O2'"  O N N 125 
SAH "C1'"  C N R 126 
SAH N9     N Y N 127 
SAH C8     C Y N 128 
SAH N7     N Y N 129 
SAH C5     C Y N 130 
SAH C6     C Y N 131 
SAH N6     N N N 132 
SAH N1     N Y N 133 
SAH C2     C Y N 134 
SAH N3     N Y N 135 
SAH C4     C Y N 136 
SAH HN1    H N N 137 
SAH HN2    H N N 138 
SAH HA     H N N 139 
SAH HB1    H N N 140 
SAH HB2    H N N 141 
SAH HG1    H N N 142 
SAH HG2    H N N 143 
SAH HXT    H N N 144 
SAH "H5'1" H N N 145 
SAH "H5'2" H N N 146 
SAH "H4'"  H N N 147 
SAH "H3'"  H N N 148 
SAH "HO3'" H N N 149 
SAH "H2'"  H N N 150 
SAH "HO2'" H N N 151 
SAH "H1'"  H N N 152 
SAH H8     H N N 153 
SAH HN61   H N N 154 
SAH HN62   H N N 155 
SAH H2     H N N 156 
U   OP3    O N N 157 
U   P      P N N 158 
U   OP1    O N N 159 
U   OP2    O N N 160 
U   "O5'"  O N N 161 
U   "C5'"  C N N 162 
U   "C4'"  C N R 163 
U   "O4'"  O N N 164 
U   "C3'"  C N S 165 
U   "O3'"  O N N 166 
U   "C2'"  C N R 167 
U   "O2'"  O N N 168 
U   "C1'"  C N R 169 
U   N1     N N N 170 
U   C2     C N N 171 
U   O2     O N N 172 
U   N3     N N N 173 
U   C4     C N N 174 
U   O4     O N N 175 
U   C5     C N N 176 
U   C6     C N N 177 
U   HOP3   H N N 178 
U   HOP2   H N N 179 
U   "H5'"  H N N 180 
U   "H5''" H N N 181 
U   "H4'"  H N N 182 
U   "H3'"  H N N 183 
U   "HO3'" H N N 184 
U   "H2'"  H N N 185 
U   "HO2'" H N N 186 
U   "H1'"  H N N 187 
U   H3     H N N 188 
U   H5     H N N 189 
U   H6     H N N 190 
# 
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 
A   OP3   P      sing N N 1   
A   OP3   HOP3   sing N N 2   
A   P     OP1    doub N N 3   
A   P     OP2    sing N N 4   
A   P     "O5'"  sing N N 5   
A   OP2   HOP2   sing N N 6   
A   "O5'" "C5'"  sing N N 7   
A   "C5'" "C4'"  sing N N 8   
A   "C5'" "H5'"  sing N N 9   
A   "C5'" "H5''" sing N N 10  
A   "C4'" "O4'"  sing N N 11  
A   "C4'" "C3'"  sing N N 12  
A   "C4'" "H4'"  sing N N 13  
A   "O4'" "C1'"  sing N N 14  
A   "C3'" "O3'"  sing N N 15  
A   "C3'" "C2'"  sing N N 16  
A   "C3'" "H3'"  sing N N 17  
A   "O3'" "HO3'" sing N N 18  
A   "C2'" "O2'"  sing N N 19  
A   "C2'" "C1'"  sing N N 20  
A   "C2'" "H2'"  sing N N 21  
A   "O2'" "HO2'" sing N N 22  
A   "C1'" N9     sing N N 23  
A   "C1'" "H1'"  sing N N 24  
A   N9    C8     sing Y N 25  
A   N9    C4     sing Y N 26  
A   C8    N7     doub Y N 27  
A   C8    H8     sing N N 28  
A   N7    C5     sing Y N 29  
A   C5    C6     sing Y N 30  
A   C5    C4     doub Y N 31  
A   C6    N6     sing N N 32  
A   C6    N1     doub Y N 33  
A   N6    H61    sing N N 34  
A   N6    H62    sing N N 35  
A   N1    C2     sing Y N 36  
A   C2    N3     doub Y N 37  
A   C2    H2     sing N N 38  
A   N3    C4     sing Y N 39  
C   OP3   P      sing N N 40  
C   OP3   HOP3   sing N N 41  
C   P     OP1    doub N N 42  
C   P     OP2    sing N N 43  
C   P     "O5'"  sing N N 44  
C   OP2   HOP2   sing N N 45  
C   "O5'" "C5'"  sing N N 46  
C   "C5'" "C4'"  sing N N 47  
C   "C5'" "H5'"  sing N N 48  
C   "C5'" "H5''" sing N N 49  
C   "C4'" "O4'"  sing N N 50  
C   "C4'" "C3'"  sing N N 51  
C   "C4'" "H4'"  sing N N 52  
C   "O4'" "C1'"  sing N N 53  
C   "C3'" "O3'"  sing N N 54  
C   "C3'" "C2'"  sing N N 55  
C   "C3'" "H3'"  sing N N 56  
C   "O3'" "HO3'" sing N N 57  
C   "C2'" "O2'"  sing N N 58  
C   "C2'" "C1'"  sing N N 59  
C   "C2'" "H2'"  sing N N 60  
C   "O2'" "HO2'" sing N N 61  
C   "C1'" N1     sing N N 62  
C   "C1'" "H1'"  sing N N 63  
C   N1    C2     sing N N 64  
C   N1    C6     sing N N 65  
C   C2    O2     doub N N 66  
C   C2    N3     sing N N 67  
C   N3    C4     doub N N 68  
C   C4    N4     sing N N 69  
C   C4    C5     sing N N 70  
C   N4    H41    sing N N 71  
C   N4    H42    sing N N 72  
C   C5    C6     doub N N 73  
C   C5    H5     sing N N 74  
C   C6    H6     sing N N 75  
G   OP3   P      sing N N 76  
G   OP3   HOP3   sing N N 77  
G   P     OP1    doub N N 78  
G   P     OP2    sing N N 79  
G   P     "O5'"  sing N N 80  
G   OP2   HOP2   sing N N 81  
G   "O5'" "C5'"  sing N N 82  
G   "C5'" "C4'"  sing N N 83  
G   "C5'" "H5'"  sing N N 84  
G   "C5'" "H5''" sing N N 85  
G   "C4'" "O4'"  sing N N 86  
G   "C4'" "C3'"  sing N N 87  
G   "C4'" "H4'"  sing N N 88  
G   "O4'" "C1'"  sing N N 89  
G   "C3'" "O3'"  sing N N 90  
G   "C3'" "C2'"  sing N N 91  
G   "C3'" "H3'"  sing N N 92  
G   "O3'" "HO3'" sing N N 93  
G   "C2'" "O2'"  sing N N 94  
G   "C2'" "C1'"  sing N N 95  
G   "C2'" "H2'"  sing N N 96  
G   "O2'" "HO2'" sing N N 97  
G   "C1'" N9     sing N N 98  
G   "C1'" "H1'"  sing N N 99  
G   N9    C8     sing Y N 100 
G   N9    C4     sing Y N 101 
G   C8    N7     doub Y N 102 
G   C8    H8     sing N N 103 
G   N7    C5     sing Y N 104 
G   C5    C6     sing N N 105 
G   C5    C4     doub Y N 106 
G   C6    O6     doub N N 107 
G   C6    N1     sing N N 108 
G   N1    C2     sing N N 109 
G   N1    H1     sing N N 110 
G   C2    N2     sing N N 111 
G   C2    N3     doub N N 112 
G   N2    H21    sing N N 113 
G   N2    H22    sing N N 114 
G   N3    C4     sing N N 115 
SAH N     CA     sing N N 116 
SAH N     HN1    sing N N 117 
SAH N     HN2    sing N N 118 
SAH CA    CB     sing N N 119 
SAH CA    C      sing N N 120 
SAH CA    HA     sing N N 121 
SAH CB    CG     sing N N 122 
SAH CB    HB1    sing N N 123 
SAH CB    HB2    sing N N 124 
SAH CG    SD     sing N N 125 
SAH CG    HG1    sing N N 126 
SAH CG    HG2    sing N N 127 
SAH SD    "C5'"  sing N N 128 
SAH C     O      doub N N 129 
SAH C     OXT    sing N N 130 
SAH OXT   HXT    sing N N 131 
SAH "C5'" "C4'"  sing N N 132 
SAH "C5'" "H5'1" sing N N 133 
SAH "C5'" "H5'2" sing N N 134 
SAH "C4'" "O4'"  sing N N 135 
SAH "C4'" "C3'"  sing N N 136 
SAH "C4'" "H4'"  sing N N 137 
SAH "O4'" "C1'"  sing N N 138 
SAH "C3'" "O3'"  sing N N 139 
SAH "C3'" "C2'"  sing N N 140 
SAH "C3'" "H3'"  sing N N 141 
SAH "O3'" "HO3'" sing N N 142 
SAH "C2'" "O2'"  sing N N 143 
SAH "C2'" "C1'"  sing N N 144 
SAH "C2'" "H2'"  sing N N 145 
SAH "O2'" "HO2'" sing N N 146 
SAH "C1'" N9     sing N N 147 
SAH "C1'" "H1'"  sing N N 148 
SAH N9    C8     sing Y N 149 
SAH N9    C4     sing Y N 150 
SAH C8    N7     doub Y N 151 
SAH C8    H8     sing N N 152 
SAH N7    C5     sing Y N 153 
SAH C5    C6     sing Y N 154 
SAH C5    C4     doub Y N 155 
SAH C6    N6     sing N N 156 
SAH C6    N1     doub Y N 157 
SAH N6    HN61   sing N N 158 
SAH N6    HN62   sing N N 159 
SAH N1    C2     sing Y N 160 
SAH C2    N3     doub Y N 161 
SAH C2    H2     sing N N 162 
SAH N3    C4     sing Y N 163 
U   OP3   P      sing N N 164 
U   OP3   HOP3   sing N N 165 
U   P     OP1    doub N N 166 
U   P     OP2    sing N N 167 
U   P     "O5'"  sing N N 168 
U   OP2   HOP2   sing N N 169 
U   "O5'" "C5'"  sing N N 170 
U   "C5'" "C4'"  sing N N 171 
U   "C5'" "H5'"  sing N N 172 
U   "C5'" "H5''" sing N N 173 
U   "C4'" "O4'"  sing N N 174 
U   "C4'" "C3'"  sing N N 175 
U   "C4'" "H4'"  sing N N 176 
U   "O4'" "C1'"  sing N N 177 
U   "C3'" "O3'"  sing N N 178 
U   "C3'" "C2'"  sing N N 179 
U   "C3'" "H3'"  sing N N 180 
U   "O3'" "HO3'" sing N N 181 
U   "C2'" "O2'"  sing N N 182 
U   "C2'" "C1'"  sing N N 183 
U   "C2'" "H2'"  sing N N 184 
U   "O2'" "HO2'" sing N N 185 
U   "C1'" N1     sing N N 186 
U   "C1'" "H1'"  sing N N 187 
U   N1    C2     sing N N 188 
U   N1    C6     sing N N 189 
U   C2    O2     doub N N 190 
U   C2    N3     sing N N 191 
U   N3    C4     sing N N 192 
U   N3    H3     sing N N 193 
U   C4    O4     doub N N 194 
U   C4    C5     sing N N 195 
U   C5    C6     doub N N 196 
U   C5    H5     sing N N 197 
U   C6    H6     sing N N 198 
# 
loop_
_ndb_struct_conf_na.entry_id 
_ndb_struct_conf_na.feature 
3NPN 'double helix'         
3NPN 'a-form double helix'  
3NPN tetraloop              
3NPN 'bulge loop'           
3NPN 'mismatched base pair' 
# 
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 C 4  1_555 A G 35 1_555 0.288  0.035  -0.043 -0.789  -2.991  5.025   1  A_C4:G35_A  A 4  ? A 35 ? 19 1 
1 A G 5  1_555 A A 34 1_555 -1.218 1.251  0.060  -0.885  -26.479 9.235   2  A_G5:A34_A  A 5  ? A 34 ? ?  ? 
1 A A 6  1_555 A U 33 1_555 0.511  -0.149 0.313  -11.474 -13.576 0.266   3  A_A6:U33_A  A 6  ? A 33 ? 20 1 
1 A G 7  1_555 A C 32 1_555 0.069  -0.112 -0.045 -4.887  -9.063  -1.828  4  A_G7:C32_A  A 7  ? A 32 ? 19 1 
1 A C 46 1_555 A G 30 1_555 0.033  -0.211 -0.683 16.113  -13.128 1.087   5  A_C46:G30_A A 46 ? A 30 ? 19 1 
1 A G 8  1_555 A C 53 1_555 -1.309 -0.041 0.067  -7.784  -6.807  10.898  6  A_G8:C53_A  A 8  ? A 53 ? ?  1 
1 A A 9  1_555 A U 52 1_555 -0.340 -0.009 -0.043 -4.561  -9.443  7.390   7  A_A9:U52_A  A 9  ? A 52 ? 20 1 
1 A G 10 1_555 A C 51 1_555 -1.521 -0.249 -0.300 -0.049  -3.760  -4.316  8  A_G10:C51_A A 10 ? A 51 ? 19 1 
1 A C 11 1_555 A G 50 1_555 0.487  0.525  -0.508 9.526   -8.647  11.573  9  A_C11:G50_A A 11 ? A 50 ? ?  1 
1 A G 12 1_555 A C 49 1_555 -0.176 -0.158 -0.055 -5.172  -6.956  -0.914  10 A_G12:C49_A A 12 ? A 49 ? 19 1 
1 A U 13 1_555 A G 48 1_555 -0.035 0.074  -0.219 0.440   -6.110  0.890   11 A_U13:G48_A A 13 ? A 48 ? ?  ? 
1 A U 14 1_555 A A 29 1_555 4.213  -2.093 -0.367 10.111  -0.925  -99.918 12 A_U14:A29_A A 14 ? A 29 ? 24 4 
1 A C 16 1_555 A G 31 1_555 0.566  -0.322 0.351  0.060   -13.160 -1.614  13 A_C16:G31_A A 16 ? A 31 ? 19 1 
1 A A 17 1_555 A C 28 1_555 -7.416 -4.896 0.835  8.535   3.080   4.995   14 A_A17:C28_A A 17 ? A 28 ? ?  6 
1 A A 18 1_555 A C 27 1_555 -5.111 -0.897 -0.395 7.995   -6.323  7.389   15 A_A18:C27_A A 18 ? A 27 ? ?  ? 
1 A G 19 1_555 A C 26 1_555 -0.477 -0.131 -0.236 2.284   -10.241 5.253   16 A_G19:C26_A A 19 ? A 26 ? 19 1 
1 A C 20 1_555 A G 25 1_555 0.165  -0.011 0.151  -3.544  -4.090  1.850   17 A_C20:G25_A A 20 ? A 25 ? 19 1 
1 A G 21 1_555 A A 24 1_555 7.924  -5.053 0.610  -7.034  -17.866 -51.643 18 A_G21:A24_A A 21 ? A 24 ? ?  ? 
# 
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 C 4  1_555 A G 35 1_555 A G 5  1_555 A A 34 1_555 0.505  -1.904 2.818 -1.057 22.645 26.469 -5.466 -0.952 0.928 41.159 1.920   
34.718 1  AA_C4G5:A34G35_AA   A 4  ? A 35 ? A 5  ? A 34 ? 
1 A G 5  1_555 A A 34 1_555 A A 6  1_555 A U 33 1_555 -0.222 -1.072 3.477 -4.083 7.265  41.566 -2.254 -0.127 3.260 10.114 5.685   
42.356 2  AA_G5A6:U33A34_AA   A 5  ? A 34 ? A 6  ? A 33 ? 
1 A A 6  1_555 A U 33 1_555 A G 7  1_555 A C 32 1_555 -0.043 -1.526 3.092 5.780  5.358  29.236 -3.903 1.140  2.718 10.379 -11.197 
30.258 3  AA_A6G7:C32U33_AA   A 6  ? A 33 ? A 7  ? A 32 ? 
1 A G 7  1_555 A C 32 1_555 A C 46 1_555 A G 30 1_555 -0.565 3.041  2.345 9.925  -6.300 86.803 2.293  0.555  2.105 -4.567 -7.194  
87.438 4  AA_G7C46:G30C32_AA  A 7  ? A 32 ? A 46 ? A 30 ? 
1 A G 8  1_555 A C 53 1_555 A A 9  1_555 A U 52 1_555 0.106  -1.859 3.129 1.457  6.493  31.893 -4.337 0.040  2.709 11.657 -2.617  
32.563 5  AA_G8A9:U52C53_AA   A 8  ? A 53 ? A 9  ? A 52 ? 
1 A A 9  1_555 A U 52 1_555 A G 10 1_555 A C 51 1_555 -0.731 -2.427 3.160 -2.186 6.435  18.736 -9.610 1.233  2.276 18.977 6.447   
19.920 6  AA_A9G10:C51U52_AA  A 9  ? A 52 ? A 10 ? A 51 ? 
1 A G 10 1_555 A C 51 1_555 A C 11 1_555 A G 50 1_555 0.858  -1.854 3.177 0.508  0.623  39.471 -2.816 -1.213 3.159 0.923  -0.752  
39.479 7  AA_G10C11:G50C51_AA A 10 ? A 51 ? A 11 ? A 50 ? 
1 A C 11 1_555 A G 50 1_555 A G 12 1_555 A C 49 1_555 -0.670 -1.604 3.409 -3.181 17.571 29.473 -5.265 0.673  2.194 31.192 5.646   
34.357 8  AA_C11G12:C49G50_AA A 11 ? A 50 ? A 12 ? A 49 ? 
1 A G 12 1_555 A C 49 1_555 A U 13 1_555 A G 48 1_555 0.169  -1.693 3.157 2.900  2.746  33.495 -3.340 0.155  3.017 4.743  -5.010  
33.725 9  AA_G12U13:G48C49_AA A 12 ? A 49 ? A 13 ? A 48 ? 
1 A U 13 1_555 A G 48 1_555 A U 14 1_555 A A 29 1_555 -3.035 -1.500 3.185 7.330  6.602  73.995 -1.426 2.714  2.795 5.461  -6.064  
74.556 10 AA_U13U14:A29G48_AA A 13 ? A 48 ? A 14 ? A 29 ? 
1 A C 16 1_555 A G 31 1_555 A A 17 1_555 A C 28 1_555 3.734  0.995  2.543 -2.384 1.124  28.554 1.822  -7.937 2.267 2.274  4.820   
28.673 11 AA_C16A17:C28G31_AA A 16 ? A 31 ? A 17 ? A 28 ? 
1 A A 17 1_555 A C 28 1_555 A A 18 1_555 A C 27 1_555 -0.117 -0.890 3.357 -3.810 9.746  44.313 -2.012 -0.185 3.104 12.711 4.969   
45.471 12 AA_A17A18:C27C28_AA A 17 ? A 28 ? A 18 ? A 27 ? 
1 A A 18 1_555 A C 27 1_555 A G 19 1_555 A C 26 1_555 -0.243 -1.045 3.420 -6.766 8.113  49.933 -1.795 -0.203 3.230 9.488  7.913   
50.968 13 AA_A18G19:C26C27_AA A 18 ? A 27 ? A 19 ? A 26 ? 
1 A G 19 1_555 A C 26 1_555 A C 20 1_555 A G 25 1_555 -0.080 -1.983 3.438 -1.854 3.210  37.101 -3.538 -0.126 3.261 5.030  2.905   
37.280 14 AA_G19C20:G25C26_AA A 19 ? A 26 ? A 20 ? A 25 ? 
1 A C 20 1_555 A G 25 1_555 A G 21 1_555 A A 24 1_555 -4.790 -1.602 3.438 4.841  17.807 57.354 -2.426 5.013  2.511 18.046 -4.906  
60.008 15 AA_C20G21:A24G25_AA A 20 ? A 25 ? A 21 ? A 24 ? 
# 
_atom_sites.entry_id                    3NPN 
_atom_sites.fract_transf_matrix[1][1]   0.009491 
_atom_sites.fract_transf_matrix[1][2]   0.005480 
_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]   0.010960 
_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]   0.009278 
_atom_sites.fract_transf_vector[1]      0.000000 
_atom_sites.fract_transf_vector[2]      0.000000 
_atom_sites.fract_transf_vector[3]      0.000000 
# 
loop_
_atom_type.symbol 
C 
N 
O 
P 
S 
# 
loop_