data_1IK5
# 
_entry.id   1IK5 
# 
_audit_conform.dict_name       mmcif_pdbx.dic 
_audit_conform.dict_version    5.386 
_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   1IK5         pdb_00001ik5 10.2210/pdb1ik5/pdb 
NDB   AR0033       ?            ?                   
RCSB  RCSB013356   ?            ?                   
WWPDB D_1000013356 ?            ?                   
# 
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 2001-11-09 
2 'Structure model' 1 1 2008-04-27 
3 'Structure model' 1 2 2011-07-13 
4 'Structure model' 1 3 2024-02-07 
# 
_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 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 4 'Structure model' chem_comp_atom         
2 4 'Structure model' chem_comp_bond         
3 4 'Structure model' database_2             
4 4 'Structure model' pdbx_struct_conn_angle 
5 4 'Structure model' struct_conn            
6 4 'Structure model' struct_conn_type       
7 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' '_pdbx_struct_conn_angle.ptnr1_auth_asym_id'  
4  4 'Structure model' '_pdbx_struct_conn_angle.ptnr1_auth_seq_id'   
5  4 'Structure model' '_pdbx_struct_conn_angle.ptnr1_label_asym_id' 
6  4 'Structure model' '_pdbx_struct_conn_angle.ptnr3_auth_asym_id'  
7  4 'Structure model' '_pdbx_struct_conn_angle.ptnr3_auth_seq_id'   
8  4 'Structure model' '_pdbx_struct_conn_angle.ptnr3_label_asym_id' 
9  4 'Structure model' '_pdbx_struct_conn_angle.value'               
10 4 'Structure model' '_struct_conn.conn_type_id'                   
11 4 'Structure model' '_struct_conn.id'                             
12 4 'Structure model' '_struct_conn.pdbx_dist_value'                
13 4 'Structure model' '_struct_conn.pdbx_leaving_atom_flag'         
14 4 'Structure model' '_struct_conn.ptnr1_auth_asym_id'             
15 4 'Structure model' '_struct_conn.ptnr1_auth_comp_id'             
16 4 'Structure model' '_struct_conn.ptnr1_auth_seq_id'              
17 4 'Structure model' '_struct_conn.ptnr1_label_asym_id'            
18 4 'Structure model' '_struct_conn.ptnr1_label_atom_id'            
19 4 'Structure model' '_struct_conn.ptnr1_label_comp_id'            
20 4 'Structure model' '_struct_conn.ptnr1_label_seq_id'             
21 4 'Structure model' '_struct_conn.ptnr2_auth_asym_id'             
22 4 'Structure model' '_struct_conn.ptnr2_auth_comp_id'             
23 4 'Structure model' '_struct_conn.ptnr2_auth_seq_id'              
24 4 'Structure model' '_struct_conn.ptnr2_label_asym_id'            
25 4 'Structure model' '_struct_conn.ptnr2_label_atom_id'            
26 4 'Structure model' '_struct_conn.ptnr2_label_comp_id'            
27 4 'Structure model' '_struct_conn.ptnr2_label_seq_id'             
28 4 'Structure model' '_struct_conn_type.id'                        
29 4 'Structure model' '_struct_site.pdbx_auth_asym_id'              
30 4 'Structure model' '_struct_site.pdbx_auth_comp_id'              
31 4 'Structure model' '_struct_site.pdbx_auth_seq_id'               
# 
_pdbx_database_status.status_code                     REL 
_pdbx_database_status.entry_id                        1IK5 
_pdbx_database_status.recvd_initial_deposition_date   2001-05-02 
_pdbx_database_status.deposit_site                    RCSB 
_pdbx_database_status.process_site                    RCSB 
_pdbx_database_status.status_code_sf                  REL 
_pdbx_database_status.SG_entry                        . 
_pdbx_database_status.pdb_format_compatible           Y 
_pdbx_database_status.status_code_mr                  ? 
_pdbx_database_status.status_code_cs                  ? 
_pdbx_database_status.status_code_nmr_data            ? 
_pdbx_database_status.methods_development_category    ? 
# 
_pdbx_database_related.db_name        NDB 
_pdbx_database_related.db_id          AR0029 
_pdbx_database_related.details        
;AR0029 is another crystal form 
containing spermine molecule
;
_pdbx_database_related.content_type   unspecified 
# 
loop_
_audit_author.name 
_audit_author.pdbx_ordinal 
'Deng, J.'           1 
'Xiong, Y.'          2 
'Sudarsanakumar, C.' 3 
'Shi, K.'            4 
'Sundaralingam, M.'  5 
# 
_citation.id                        primary 
_citation.title                     
;Crystal structures of two forms of a 14-mer RNA/DNA chimer duplex with double UU bulges: a novel intramolecular U*(A x U) base triple.
;
_citation.journal_abbrev            RNA 
_citation.journal_volume            7 
_citation.page_first                1425 
_citation.page_last                 1431 
_citation.year                      2001 
_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   11680847 
_citation.pdbx_database_id_DOI      ? 
# 
loop_
_citation_author.citation_id 
_citation_author.name 
_citation_author.ordinal 
_citation_author.identifier_ORCID 
primary 'Deng, J.'           1 ? 
primary 'Xiong, Y.'          2 ? 
primary 'Sudarsanakumar, C.' 3 ? 
primary 'Shi, K.'            4 ? 
primary 'Sundaralingam, M.'  5 ? 
# 
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 "5'-R(*GP*GP*UP*AP*UP*UP*UP*CP*GP*GP*UP*AP*(CBR)P*C)-3'" 4503.547 1  ? ? ? 
'potential hair pin fragment with highly conserved UUCG loop' 
2 polymer     syn "5'-R(*GP*GP*UP*AP*UP*UP*UP*UP*GP*GP*UP*AP*(CBR)P*C)-3'" 4504.531 1  ? ? ? ? 
3 non-polymer syn 'MAGNESIUM ION'                                          24.305   2  ? ? ? ? 
4 water       nat water                                                    18.015   67 ? ? ? ? 
# 
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 yes 'GGUAUUUCGGUA(CBR)C' GGUAUUUCGGUACC A ? 
2 polyribonucleotide no yes 'GGUAUUUUGGUA(CBR)C' GGUAUUUUGGUACC B ? 
# 
loop_
_pdbx_entity_nonpoly.entity_id 
_pdbx_entity_nonpoly.name 
_pdbx_entity_nonpoly.comp_id 
3 'MAGNESIUM ION' MG  
4 water           HOH 
# 
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  U   n 
1 4  A   n 
1 5  U   n 
1 6  U   n 
1 7  U   n 
1 8  C   n 
1 9  G   n 
1 10 G   n 
1 11 U   n 
1 12 A   n 
1 13 CBR n 
1 14 C   n 
2 1  G   n 
2 2  G   n 
2 3  U   n 
2 4  A   n 
2 5  U   n 
2 6  U   n 
2 7  U   n 
2 8  U   n 
2 9  G   n 
2 10 G   n 
2 11 U   n 
2 12 A   n 
2 13 CBR n 
2 14 C   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 
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 
CBR 'DNA linking' n "5-BROMO-2'-DEOXY-CYTIDINE-5'-MONOPHOSPHATE" ? 'C9 H13 Br N3 O7 P' 386.093 
G   'RNA linking' y "GUANOSINE-5'-MONOPHOSPHATE"                 ? 'C10 H14 N5 O8 P'   363.221 
HOH non-polymer   . WATER                                        ? 'H2 O'              18.015  
MG  non-polymer   . 'MAGNESIUM ION'                              ? 'Mg 2'              24.305  
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  U   3  3  3  U   U A . n 
A 1 4  A   4  4  4  A   A A . n 
A 1 5  U   5  5  5  U   U A . n 
A 1 6  U   6  6  6  U   U A . n 
A 1 7  U   7  7  7  U   U A . n 
A 1 8  C   8  8  8  C   C A . n 
A 1 9  G   9  9  9  G   G A . n 
A 1 10 G   10 10 10 G   G A . n 
A 1 11 U   11 11 11 U   U A . n 
A 1 12 A   12 12 12 A   A A . n 
A 1 13 CBR 13 13 13 CBR B A . n 
A 1 14 C   14 14 14 C   C A . n 
B 2 1  G   1  15 15 G   G B . n 
B 2 2  G   2  16 16 G   G B . n 
B 2 3  U   3  17 17 U   U B . n 
B 2 4  A   4  18 18 A   A B . n 
B 2 5  U   5  19 19 U   U B . n 
B 2 6  U   6  20 20 U   U B . n 
B 2 7  U   7  21 21 U   U B . n 
B 2 8  U   8  22 22 U   U B . n 
B 2 9  G   9  23 23 G   G B . n 
B 2 10 G   10 24 24 G   G B . n 
B 2 11 U   11 25 25 U   U B . n 
B 2 12 A   12 26 26 A   A B . n 
B 2 13 CBR 13 27 27 CBR B B . n 
B 2 14 C   14 28 28 C   C 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 MG  1  98 98 MG  MG2 A . 
D 3 MG  1  99 99 MG  MG2 B . 
E 4 HOH 1  31 31 HOH HOH A . 
E 4 HOH 2  32 32 HOH HOH A . 
E 4 HOH 3  33 33 HOH HOH A . 
E 4 HOH 4  35 35 HOH HOH A . 
E 4 HOH 5  38 38 HOH HOH A . 
E 4 HOH 6  39 39 HOH HOH A . 
E 4 HOH 7  40 40 HOH HOH A . 
E 4 HOH 8  44 44 HOH HOH A . 
E 4 HOH 9  45 45 HOH HOH A . 
E 4 HOH 10 47 47 HOH HOH A . 
E 4 HOH 11 51 51 HOH HOH A . 
E 4 HOH 12 53 53 HOH HOH A . 
E 4 HOH 13 55 55 HOH HOH A . 
E 4 HOH 14 56 56 HOH HOH A . 
E 4 HOH 15 59 59 HOH HOH A . 
E 4 HOH 16 61 61 HOH HOH A . 
E 4 HOH 17 62 62 HOH HOH A . 
E 4 HOH 18 65 65 HOH HOH A . 
E 4 HOH 19 66 66 HOH HOH A . 
E 4 HOH 20 69 69 HOH HOH A . 
E 4 HOH 21 70 70 HOH HOH A . 
E 4 HOH 22 74 74 HOH HOH A . 
E 4 HOH 23 77 77 HOH HOH A . 
E 4 HOH 24 78 78 HOH HOH A . 
E 4 HOH 25 83 83 HOH HOH A . 
E 4 HOH 26 84 84 HOH HOH A . 
E 4 HOH 27 85 85 HOH HOH A . 
E 4 HOH 28 86 86 HOH HOH A . 
E 4 HOH 29 87 87 HOH HOH A . 
E 4 HOH 30 92 92 HOH HOH A . 
E 4 HOH 31 95 95 HOH HOH A . 
F 4 HOH 1  29 29 HOH HOH B . 
F 4 HOH 2  30 30 HOH HOH B . 
F 4 HOH 3  34 34 HOH HOH B . 
F 4 HOH 4  36 36 HOH HOH B . 
F 4 HOH 5  37 37 HOH HOH B . 
F 4 HOH 6  41 41 HOH HOH B . 
F 4 HOH 7  42 42 HOH HOH B . 
F 4 HOH 8  43 43 HOH HOH B . 
F 4 HOH 9  46 46 HOH HOH B . 
F 4 HOH 10 48 48 HOH HOH B . 
F 4 HOH 11 49 49 HOH HOH B . 
F 4 HOH 12 50 50 HOH HOH B . 
F 4 HOH 13 52 52 HOH HOH B . 
F 4 HOH 14 54 54 HOH HOH B . 
F 4 HOH 15 57 57 HOH HOH B . 
F 4 HOH 16 60 60 HOH HOH B . 
F 4 HOH 17 63 63 HOH HOH B . 
F 4 HOH 18 64 64 HOH HOH B . 
F 4 HOH 19 67 67 HOH HOH B . 
F 4 HOH 20 68 68 HOH HOH B . 
F 4 HOH 21 71 71 HOH HOH B . 
F 4 HOH 22 73 73 HOH HOH B . 
F 4 HOH 23 75 75 HOH HOH B . 
F 4 HOH 24 76 76 HOH HOH B . 
F 4 HOH 25 79 79 HOH HOH B . 
F 4 HOH 26 80 80 HOH HOH B . 
F 4 HOH 27 81 81 HOH HOH B . 
F 4 HOH 28 82 82 HOH HOH B . 
F 4 HOH 29 88 88 HOH HOH B . 
F 4 HOH 30 89 89 HOH HOH B . 
F 4 HOH 31 90 90 HOH HOH B . 
F 4 HOH 32 91 91 HOH HOH B . 
F 4 HOH 33 93 93 HOH HOH B . 
F 4 HOH 34 94 94 HOH HOH B . 
F 4 HOH 35 96 96 HOH HOH B . 
F 4 HOH 36 97 97 HOH HOH B . 
# 
loop_
_pdbx_unobs_or_zero_occ_atoms.id 
_pdbx_unobs_or_zero_occ_atoms.PDB_model_num 
_pdbx_unobs_or_zero_occ_atoms.polymer_flag 
_pdbx_unobs_or_zero_occ_atoms.occupancy_flag 
_pdbx_unobs_or_zero_occ_atoms.auth_asym_id 
_pdbx_unobs_or_zero_occ_atoms.auth_comp_id 
_pdbx_unobs_or_zero_occ_atoms.auth_seq_id 
_pdbx_unobs_or_zero_occ_atoms.PDB_ins_code 
_pdbx_unobs_or_zero_occ_atoms.auth_atom_id 
_pdbx_unobs_or_zero_occ_atoms.label_alt_id 
_pdbx_unobs_or_zero_occ_atoms.label_asym_id 
_pdbx_unobs_or_zero_occ_atoms.label_comp_id 
_pdbx_unobs_or_zero_occ_atoms.label_seq_id 
_pdbx_unobs_or_zero_occ_atoms.label_atom_id 
1 1 Y 0 A U 7  ? C2 ? A U 7 C2 
2 1 Y 0 A U 7  ? O2 ? A U 7 O2 
3 1 Y 0 A U 7  ? C5 ? A U 7 C5 
4 1 Y 0 B U 21 ? O2 ? B U 7 O2 
5 1 Y 0 B U 21 ? C4 ? B U 7 C4 
6 1 Y 0 B U 21 ? O4 ? B U 7 O4 
7 1 Y 0 B U 21 ? C5 ? B U 7 C5 
# 
loop_
_software.name 
_software.classification 
_software.version 
_software.citation_id 
_software.pdbx_ordinal 
DENZO     'data reduction' . ? 1 
SCALEPACK 'data scaling'   . ? 2 
AMoRE     phasing          . ? 3 
CNS       refinement       . ? 4 
# 
_cell.entry_id           1IK5 
_cell.length_a           60.04 
_cell.length_b           29.53 
_cell.length_c           52.44 
_cell.angle_alpha        90 
_cell.angle_beta         120.83 
_cell.angle_gamma        90 
_cell.Z_PDB              4 
_cell.pdbx_unique_axis   ? 
# 
_symmetry.entry_id                         1IK5 
_symmetry.space_group_name_H-M             'C 1 2 1' 
_symmetry.pdbx_full_space_group_name_H-M   ? 
_symmetry.cell_setting                     ? 
_symmetry.Int_Tables_number                5 
# 
_exptl.entry_id          1IK5 
_exptl.method            'X-RAY DIFFRACTION' 
_exptl.crystals_number   1 
# 
_exptl_crystal.id                    1 
_exptl_crystal.density_meas          ? 
_exptl_crystal.density_Matthews      2.25 
_exptl_crystal.density_percent_sol   45.26 
_exptl_crystal.description           ? 
# 
_exptl_crystal_grow.crystal_id      1 
_exptl_crystal_grow.method          'VAPOR DIFFUSION, HANGING DROP' 
_exptl_crystal_grow.temp            298 
_exptl_crystal_grow.temp_details    ? 
_exptl_crystal_grow.pH              7.0 
_exptl_crystal_grow.pdbx_details    'cacodylate, magnesium chloride, MPD, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K' 
_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 cacodylate ? ? ? 
1 2 1 MgCl2      ? ? ? 
1 3 1 MPD        ? ? ? 
1 4 2 MPD        ? ? ? 
# 
_diffrn.id                     1 
_diffrn.ambient_temp           140 
_diffrn.ambient_temp_details   ? 
_diffrn.crystal_id             1 
# 
_diffrn_detector.diffrn_id              1 
_diffrn_detector.detector               'IMAGE PLATE' 
_diffrn_detector.type                   'RIGAKU RAXIS IIC' 
_diffrn_detector.pdbx_collection_date   2000-05-02 
_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                    graphite 
_diffrn_radiation.pdbx_diffrn_protocol             'SINGLE WAVELENGTH' 
_diffrn_radiation.pdbx_scattering_type             x-ray 
# 
_diffrn_radiation_wavelength.id           1 
_diffrn_radiation_wavelength.wavelength   1.5418 
_diffrn_radiation_wavelength.wt           1.0 
# 
_diffrn_source.diffrn_id                   1 
_diffrn_source.source                      'ROTATING ANODE' 
_diffrn_source.type                        RIGAKU 
_diffrn_source.pdbx_synchrotron_site       ? 
_diffrn_source.pdbx_synchrotron_beamline   ? 
_diffrn_source.pdbx_wavelength             ? 
_diffrn_source.pdbx_wavelength_list        1.5418 
# 
_refine.entry_id                                 1IK5 
_refine.ls_number_reflns_obs                     6948 
_refine.ls_number_reflns_all                     7463 
_refine.pdbx_ls_sigma_I                          ? 
_refine.pdbx_ls_sigma_F                          2 
_refine.pdbx_data_cutoff_high_absF               ? 
_refine.pdbx_data_cutoff_low_absF                ? 
_refine.ls_d_res_low                             10 
_refine.ls_d_res_high                            1.8 
_refine.ls_percent_reflns_obs                    ? 
_refine.ls_R_factor_obs                          ? 
_refine.ls_R_factor_all                          ? 
_refine.ls_R_factor_R_work                       0.209 
_refine.ls_R_factor_R_free                       0.232 
_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                  683 
_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                                  ? 
_refine.pdbx_starting_model                      ? 
_refine.pdbx_method_to_determine_struct          'MOLECULAR REPLACEMENT' 
_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_Free                  ? 
_refine.overall_SU_B                             ? 
_refine.ls_redundancy_reflns_obs                 ? 
_refine.correlation_coeff_Fo_to_Fc               ? 
_refine.correlation_coeff_Fo_to_Fc_free          ? 
_refine.overall_SU_R_Cruickshank_DPI             ? 
_refine.overall_SU_R_free                        ? 
_refine.overall_SU_ML                            ? 
_refine.pdbx_overall_ESU_R                       ? 
_refine.pdbx_data_cutoff_high_rms_absF           ? 
_refine.pdbx_refine_id                           'X-RAY DIFFRACTION' 
_refine.pdbx_diffrn_id                           1 
_refine.pdbx_TLS_residual_ADP_flag               ? 
_refine.pdbx_solvent_vdw_probe_radii             ? 
_refine.pdbx_solvent_ion_probe_radii             ? 
_refine.pdbx_solvent_shrinkage_radii             ? 
_refine.pdbx_overall_phase_error                 ? 
_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   584 
_refine_hist.pdbx_number_atoms_ligand         4 
_refine_hist.number_atoms_solvent             67 
_refine_hist.number_atoms_total               655 
_refine_hist.d_res_high                       1.8 
_refine_hist.d_res_low                        10 
# 
_database_PDB_matrix.entry_id          1IK5 
_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                  1IK5 
_struct.title                     
'Crystal Structure of a 14mer RNA Containing Double UU Bulges in Two Crystal Forms: A Novel U*(AU) Intramolecular Base Triple' 
_struct.pdbx_model_details        ? 
_struct.pdbx_CASP_flag            ? 
_struct.pdbx_model_type_details   ? 
# 
_struct_keywords.entry_id        1IK5 
_struct_keywords.pdbx_keywords   RNA 
_struct_keywords.text            'RNA duplex, UU-bulges, base triple, kink, 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 ? 
C N N 3 ? 
D N N 3 ? 
E N N 4 ? 
F N N 4 ? 
# 
loop_
_struct_ref.id 
_struct_ref.entity_id 
_struct_ref.db_name 
_struct_ref.db_code 
_struct_ref.pdbx_db_accession 
_struct_ref.pdbx_db_isoform 
_struct_ref.pdbx_seq_one_letter_code 
_struct_ref.pdbx_align_begin 
1 1 PDB 1IK5 1IK5 ? ? ? 
2 2 PDB 1IK5 1IK5 ? ? ? 
# 
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 1IK5 A 1 ? 14 ? 1IK5 1  ? 14 ? 1  14 
2 2 1IK5 B 1 ? 14 ? 1IK5 15 ? 28 ? 15 28 
# 
_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,E,F 
# 
_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.pdbx_parent_biol_id   ? 
_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 
covale1  covale both ? A A   12 "O3'" ? ? ? 1_555 A CBR 13 P  ? ? A A   12 A CBR 13 1_555 ? ? ? ? ? ? ?                    1.605 ? 
? 
covale2  covale both ? A CBR 13 "O3'" ? ? ? 1_555 A C   14 P  ? ? A CBR 13 A C   14 1_555 ? ? ? ? ? ? ?                    1.614 ? 
? 
covale3  covale both ? B A   12 "O3'" ? ? ? 1_555 B CBR 13 P  ? ? B A   26 B CBR 27 1_555 ? ? ? ? ? ? ?                    1.598 ? 
? 
covale4  covale both ? B CBR 13 "O3'" ? ? ? 1_555 B C   14 P  ? ? B CBR 27 B C   28 1_555 ? ? ? ? ? ? ?                    1.607 ? 
? 
metalc1  metalc ?    ? E HOH .  O     ? ? ? 1_555 C MG  .  MG ? ? A HOH 32 A MG  98 1_555 ? ? ? ? ? ? ?                    2.057 ? 
? 
metalc2  metalc ?    ? E HOH .  O     ? ? ? 1_555 C MG  .  MG ? ? A HOH 40 A MG  98 1_555 ? ? ? ? ? ? ?                    2.201 ? 
? 
metalc3  metalc ?    ? E HOH .  O     ? ? ? 1_555 D MG  .  MG ? ? A HOH 74 B MG  99 1_555 ? ? ? ? ? ? ?                    2.139 ? 
? 
metalc4  metalc ?    ? E HOH .  O     ? ? ? 1_555 D MG  .  MG ? ? A HOH 77 B MG  99 1_555 ? ? ? ? ? ? ?                    2.274 ? 
? 
metalc5  metalc ?    ? E HOH .  O     ? ? ? 1_555 C MG  .  MG ? ? A HOH 78 A MG  98 1_555 ? ? ? ? ? ? ?                    2.032 ? 
? 
metalc6  metalc ?    ? F HOH .  O     ? ? ? 1_555 D MG  .  MG ? ? B HOH 75 B MG  99 1_555 ? ? ? ? ? ? ?                    2.094 ? 
? 
metalc7  metalc ?    ? F HOH .  O     ? ? ? 1_555 D MG  .  MG ? ? B HOH 76 B MG  99 1_555 ? ? ? ? ? ? ?                    2.255 ? 
? 
metalc8  metalc ?    ? F HOH .  O     ? ? ? 1_555 D MG  .  MG ? ? B HOH 93 B MG  99 1_555 ? ? ? ? ? ? ?                    2.600 ? 
? 
hydrog1  hydrog ?    ? A G   1  N1    ? ? ? 1_555 B C   14 N3 ? ? A G   1  B C   28 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog2  hydrog ?    ? A G   1  N2    ? ? ? 1_555 B C   14 O2 ? ? A G   1  B C   28 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog3  hydrog ?    ? A G   1  O6    ? ? ? 1_555 B C   14 N4 ? ? A G   1  B C   28 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog4  hydrog ?    ? A G   2  N1    ? ? ? 1_555 B CBR 13 N3 ? ? A G   2  B CBR 27 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog5  hydrog ?    ? A G   2  N2    ? ? ? 1_555 B CBR 13 O2 ? ? A G   2  B CBR 27 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog6  hydrog ?    ? A G   2  O6    ? ? ? 1_555 B CBR 13 N4 ? ? A G   2  B CBR 27 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog7  hydrog ?    ? A U   3  N3    ? ? ? 1_555 B A   12 N1 ? ? A U   3  B A   26 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog8  hydrog ?    ? A U   3  O4    ? ? ? 1_555 B A   12 N6 ? ? A U   3  B A   26 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog9  hydrog ?    ? A A   4  N6    ? ? ? 1_555 B U   6  O2 ? ? A A   4  B U   20 1_555 ? ? ? ? ? ? 'REVERSED HOOGSTEEN' ?     ? 
? 
hydrog10 hydrog ?    ? A A   4  N7    ? ? ? 1_555 B U   6  N3 ? ? A A   4  B U   20 1_555 ? ? ? ? ? ? 'REVERSED HOOGSTEEN' ?     ? 
? 
hydrog11 hydrog ?    ? A A   4  N1    ? ? ? 1_555 B U   11 N3 ? ? A A   4  B U   25 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog12 hydrog ?    ? A A   4  N6    ? ? ? 1_555 B U   11 O4 ? ? A A   4  B U   25 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog13 hydrog ?    ? A U   5  N3    ? ? ? 1_555 B G   10 O6 ? ? A U   5  B G   24 1_555 ? ? ? ? ? ? TYPE_28_PAIR         ?     ? 
? 
hydrog14 hydrog ?    ? A U   5  O2    ? ? ? 1_555 B G   10 N1 ? ? A U   5  B G   24 1_555 ? ? ? ? ? ? TYPE_28_PAIR         ?     ? 
? 
hydrog15 hydrog ?    ? A U   6  N3    ? ? ? 1_555 B A   4  N7 ? ? A U   6  B A   18 1_555 ? ? ? ? ? ? 'REVERSED HOOGSTEEN' ?     ? 
? 
hydrog16 hydrog ?    ? A U   6  O2    ? ? ? 1_555 B A   4  N6 ? ? A U   6  B A   18 1_555 ? ? ? ? ? ? 'REVERSED HOOGSTEEN' ?     ? 
? 
hydrog17 hydrog ?    ? A C   8  N3    ? ? ? 1_555 B G   9  N1 ? ? A C   8  B G   23 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog18 hydrog ?    ? A C   8  N4    ? ? ? 1_555 B G   9  O6 ? ? A C   8  B G   23 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog19 hydrog ?    ? A C   8  O2    ? ? ? 1_555 B G   9  N2 ? ? A C   8  B G   23 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog20 hydrog ?    ? A G   9  N1    ? ? ? 1_555 B U   8  O2 ? ? A G   9  B U   22 1_555 ? ? ? ? ? ? 'G-U MISPAIR'        ?     ? 
? 
hydrog21 hydrog ?    ? A G   10 N1    ? ? ? 1_555 B U   5  O2 ? ? A G   10 B U   19 1_555 ? ? ? ? ? ? TYPE_28_PAIR         ?     ? 
? 
hydrog22 hydrog ?    ? A G   10 O6    ? ? ? 1_555 B U   5  N3 ? ? A G   10 B U   19 1_555 ? ? ? ? ? ? TYPE_28_PAIR         ?     ? 
? 
hydrog23 hydrog ?    ? A U   11 N3    ? ? ? 1_555 B A   4  N1 ? ? A U   11 B A   18 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog24 hydrog ?    ? A U   11 O4    ? ? ? 1_555 B A   4  N6 ? ? A U   11 B A   18 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog25 hydrog ?    ? A A   12 N1    ? ? ? 1_555 B U   3  N3 ? ? A A   12 B U   17 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog26 hydrog ?    ? A A   12 N6    ? ? ? 1_555 B U   3  O4 ? ? A A   12 B U   17 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog27 hydrog ?    ? A CBR 13 N3    ? ? ? 1_555 B G   2  N1 ? ? A CBR 13 B G   16 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog28 hydrog ?    ? A CBR 13 N4    ? ? ? 1_555 B G   2  O6 ? ? A CBR 13 B G   16 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog29 hydrog ?    ? A CBR 13 O2    ? ? ? 1_555 B G   2  N2 ? ? A CBR 13 B G   16 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog30 hydrog ?    ? A C   14 N3    ? ? ? 1_555 B G   1  N1 ? ? A C   14 B G   15 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog31 hydrog ?    ? A C   14 N4    ? ? ? 1_555 B G   1  O6 ? ? A C   14 B G   15 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
hydrog32 hydrog ?    ? A C   14 O2    ? ? ? 1_555 B G   1  N2 ? ? A C   14 B G   15 1_555 ? ? ? ? ? ? WATSON-CRICK         ?     ? 
? 
# 
loop_
_struct_conn_type.id 
_struct_conn_type.criteria 
_struct_conn_type.reference 
covale ? ? 
metalc ? ? 
hydrog ? ? 
# 
loop_
_pdbx_struct_conn_angle.id 
_pdbx_struct_conn_angle.ptnr1_label_atom_id 
_pdbx_struct_conn_angle.ptnr1_label_alt_id 
_pdbx_struct_conn_angle.ptnr1_label_asym_id 
_pdbx_struct_conn_angle.ptnr1_label_comp_id 
_pdbx_struct_conn_angle.ptnr1_label_seq_id 
_pdbx_struct_conn_angle.ptnr1_auth_atom_id 
_pdbx_struct_conn_angle.ptnr1_auth_asym_id 
_pdbx_struct_conn_angle.ptnr1_auth_comp_id 
_pdbx_struct_conn_angle.ptnr1_auth_seq_id 
_pdbx_struct_conn_angle.ptnr1_PDB_ins_code 
_pdbx_struct_conn_angle.ptnr1_symmetry 
_pdbx_struct_conn_angle.ptnr2_label_atom_id 
_pdbx_struct_conn_angle.ptnr2_label_alt_id 
_pdbx_struct_conn_angle.ptnr2_label_asym_id 
_pdbx_struct_conn_angle.ptnr2_label_comp_id 
_pdbx_struct_conn_angle.ptnr2_label_seq_id 
_pdbx_struct_conn_angle.ptnr2_auth_atom_id 
_pdbx_struct_conn_angle.ptnr2_auth_asym_id 
_pdbx_struct_conn_angle.ptnr2_auth_comp_id 
_pdbx_struct_conn_angle.ptnr2_auth_seq_id 
_pdbx_struct_conn_angle.ptnr2_PDB_ins_code 
_pdbx_struct_conn_angle.ptnr2_symmetry 
_pdbx_struct_conn_angle.ptnr3_label_atom_id 
_pdbx_struct_conn_angle.ptnr3_label_alt_id 
_pdbx_struct_conn_angle.ptnr3_label_asym_id 
_pdbx_struct_conn_angle.ptnr3_label_comp_id 
_pdbx_struct_conn_angle.ptnr3_label_seq_id 
_pdbx_struct_conn_angle.ptnr3_auth_atom_id 
_pdbx_struct_conn_angle.ptnr3_auth_asym_id 
_pdbx_struct_conn_angle.ptnr3_auth_comp_id 
_pdbx_struct_conn_angle.ptnr3_auth_seq_id 
_pdbx_struct_conn_angle.ptnr3_PDB_ins_code 
_pdbx_struct_conn_angle.ptnr3_symmetry 
_pdbx_struct_conn_angle.value 
_pdbx_struct_conn_angle.value_esd 
1  O ? E HOH . ? A HOH 32 ? 1_555 MG ? C MG . ? A MG 98 ? 1_555 O ? E HOH . ? A HOH 40 ? 1_555 94.8  ? 
2  O ? E HOH . ? A HOH 32 ? 1_555 MG ? C MG . ? A MG 98 ? 1_555 O ? E HOH . ? A HOH 78 ? 1_555 86.5  ? 
3  O ? E HOH . ? A HOH 40 ? 1_555 MG ? C MG . ? A MG 98 ? 1_555 O ? E HOH . ? A HOH 78 ? 1_555 100.5 ? 
4  O ? E HOH . ? A HOH 74 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? E HOH . ? A HOH 77 ? 1_555 74.3  ? 
5  O ? E HOH . ? A HOH 74 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? F HOH . ? B HOH 75 ? 1_555 93.5  ? 
6  O ? E HOH . ? A HOH 77 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? F HOH . ? B HOH 75 ? 1_555 83.3  ? 
7  O ? E HOH . ? A HOH 74 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? F HOH . ? B HOH 76 ? 1_555 113.7 ? 
8  O ? E HOH . ? A HOH 77 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? F HOH . ? B HOH 76 ? 1_555 171.5 ? 
9  O ? F HOH . ? B HOH 75 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? F HOH . ? B HOH 76 ? 1_555 93.0  ? 
10 O ? E HOH . ? A HOH 74 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? F HOH . ? B HOH 93 ? 1_555 145.2 ? 
11 O ? E HOH . ? A HOH 77 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? F HOH . ? B HOH 93 ? 1_555 71.6  ? 
12 O ? F HOH . ? B HOH 75 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? F HOH . ? B HOH 93 ? 1_555 75.9  ? 
13 O ? F HOH . ? B HOH 76 ? 1_555 MG ? D MG . ? B MG 99 ? 1_555 O ? F HOH . ? B HOH 93 ? 1_555 100.0 ? 
# 
loop_
_struct_site.id 
_struct_site.pdbx_evidence_code 
_struct_site.pdbx_auth_asym_id 
_struct_site.pdbx_auth_comp_id 
_struct_site.pdbx_auth_seq_id 
_struct_site.pdbx_auth_ins_code 
_struct_site.pdbx_num_residues 
_struct_site.details 
AC1 Software A MG 98 ? 3 'BINDING SITE FOR RESIDUE MG A 98' 
AC2 Software B MG 99 ? 5 'BINDING SITE FOR RESIDUE MG B 99' 
# 
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 3 HOH E . ? HOH A 32 . ? 1_555 ? 
2 AC1 3 HOH E . ? HOH A 40 . ? 1_555 ? 
3 AC1 3 HOH E . ? HOH A 78 . ? 1_555 ? 
4 AC2 5 HOH E . ? HOH A 74 . ? 1_555 ? 
5 AC2 5 HOH E . ? HOH A 77 . ? 1_555 ? 
6 AC2 5 HOH F . ? HOH B 75 . ? 1_555 ? 
7 AC2 5 HOH F . ? HOH B 76 . ? 1_555 ? 
8 AC2 5 HOH F . ? HOH B 93 . ? 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             U 
_pdbx_validate_rmsd_angle.auth_seq_id_1              7 
_pdbx_validate_rmsd_angle.PDB_ins_code_1             ? 
_pdbx_validate_rmsd_angle.label_alt_id_1             ? 
_pdbx_validate_rmsd_angle.auth_atom_id_2             "C2'" 
_pdbx_validate_rmsd_angle.auth_asym_id_2             A 
_pdbx_validate_rmsd_angle.auth_comp_id_2             U 
_pdbx_validate_rmsd_angle.auth_seq_id_2              7 
_pdbx_validate_rmsd_angle.PDB_ins_code_2             ? 
_pdbx_validate_rmsd_angle.label_alt_id_2             ? 
_pdbx_validate_rmsd_angle.auth_atom_id_3             "C1'" 
_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              7 
_pdbx_validate_rmsd_angle.PDB_ins_code_3             ? 
_pdbx_validate_rmsd_angle.label_alt_id_3             ? 
_pdbx_validate_rmsd_angle.angle_value                107.03 
_pdbx_validate_rmsd_angle.angle_target_value         101.50 
_pdbx_validate_rmsd_angle.angle_deviation            5.53 
_pdbx_validate_rmsd_angle.angle_standard_deviation   0.80 
_pdbx_validate_rmsd_angle.linker_flag                N 
# 
_pdbx_validate_planes.id              1 
_pdbx_validate_planes.PDB_model_num   1 
_pdbx_validate_planes.auth_comp_id    U 
_pdbx_validate_planes.auth_asym_id    B 
_pdbx_validate_planes.auth_seq_id     20 
_pdbx_validate_planes.PDB_ins_code    ? 
_pdbx_validate_planes.label_alt_id    ? 
_pdbx_validate_planes.rmsd            0.112 
_pdbx_validate_planes.type            'SIDE CHAIN' 
# 
loop_
_pdbx_struct_mod_residue.id 
_pdbx_struct_mod_residue.label_asym_id 
_pdbx_struct_mod_residue.label_comp_id 
_pdbx_struct_mod_residue.label_seq_id 
_pdbx_struct_mod_residue.auth_asym_id 
_pdbx_struct_mod_residue.auth_comp_id 
_pdbx_struct_mod_residue.auth_seq_id 
_pdbx_struct_mod_residue.PDB_ins_code 
_pdbx_struct_mod_residue.parent_comp_id 
_pdbx_struct_mod_residue.details 
1 A CBR 13 A CBR 13 ? DC ? 
2 B CBR 13 B CBR 27 ? DC ? 
# 
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  
CBR BR     BR N N 73  
CBR P      P  N N 74  
CBR OP1    O  N N 75  
CBR OP2    O  N N 76  
CBR "O5'"  O  N N 77  
CBR N1     N  N N 78  
CBR C6     C  N N 79  
CBR C2     C  N N 80  
CBR O2     O  N N 81  
CBR N3     N  N N 82  
CBR C4     C  N N 83  
CBR N4     N  N N 84  
CBR C5     C  N N 85  
CBR "C2'"  C  N N 86  
CBR "C5'"  C  N N 87  
CBR "C4'"  C  N R 88  
CBR "O4'"  O  N N 89  
CBR "C1'"  C  N R 90  
CBR "C3'"  C  N S 91  
CBR "O3'"  O  N N 92  
CBR OP3    O  N N 93  
CBR HOP2   H  N N 94  
CBR H6     H  N N 95  
CBR H41    H  N N 96  
CBR H42    H  N N 97  
CBR "H2'"  H  N N 98  
CBR "H2''" H  N N 99  
CBR "H5'"  H  N N 100 
CBR "H5''" H  N N 101 
CBR "H4'"  H  N N 102 
CBR "H1'"  H  N N 103 
CBR "H3'"  H  N N 104 
CBR "HO3'" H  N N 105 
CBR HOP3   H  N N 106 
G   OP3    O  N N 107 
G   P      P  N N 108 
G   OP1    O  N N 109 
G   OP2    O  N N 110 
G   "O5'"  O  N N 111 
G   "C5'"  C  N N 112 
G   "C4'"  C  N R 113 
G   "O4'"  O  N N 114 
G   "C3'"  C  N S 115 
G   "O3'"  O  N N 116 
G   "C2'"  C  N R 117 
G   "O2'"  O  N N 118 
G   "C1'"  C  N R 119 
G   N9     N  Y N 120 
G   C8     C  Y N 121 
G   N7     N  Y N 122 
G   C5     C  Y N 123 
G   C6     C  N N 124 
G   O6     O  N N 125 
G   N1     N  N N 126 
G   C2     C  N N 127 
G   N2     N  N N 128 
G   N3     N  N N 129 
G   C4     C  Y N 130 
G   HOP3   H  N N 131 
G   HOP2   H  N N 132 
G   "H5'"  H  N N 133 
G   "H5''" H  N N 134 
G   "H4'"  H  N N 135 
G   "H3'"  H  N N 136 
G   "HO3'" H  N N 137 
G   "H2'"  H  N N 138 
G   "HO2'" H  N N 139 
G   "H1'"  H  N N 140 
G   H8     H  N N 141 
G   H1     H  N N 142 
G   H21    H  N N 143 
G   H22    H  N N 144 
HOH O      O  N N 145 
HOH H1     H  N N 146 
HOH H2     H  N N 147 
MG  MG     MG N N 148 
U   OP3    O  N N 149 
U   P      P  N N 150 
U   OP1    O  N N 151 
U   OP2    O  N N 152 
U   "O5'"  O  N N 153 
U   "C5'"  C  N N 154 
U   "C4'"  C  N R 155 
U   "O4'"  O  N N 156 
U   "C3'"  C  N S 157 
U   "O3'"  O  N N 158 
U   "C2'"  C  N R 159 
U   "O2'"  O  N N 160 
U   "C1'"  C  N R 161 
U   N1     N  N N 162 
U   C2     C  N N 163 
U   O2     O  N N 164 
U   N3     N  N N 165 
U   C4     C  N N 166 
U   O4     O  N N 167 
U   C5     C  N N 168 
U   C6     C  N N 169 
U   HOP3   H  N N 170 
U   HOP2   H  N N 171 
U   "H5'"  H  N N 172 
U   "H5''" H  N N 173 
U   "H4'"  H  N N 174 
U   "H3'"  H  N N 175 
U   "HO3'" H  N N 176 
U   "H2'"  H  N N 177 
U   "HO2'" H  N N 178 
U   "H1'"  H  N N 179 
U   H3     H  N N 180 
U   H5     H  N N 181 
U   H6     H  N N 182 
# 
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  
CBR BR    C5     sing N N 76  
CBR P     OP1    doub N N 77  
CBR P     OP2    sing N N 78  
CBR P     "O5'"  sing N N 79  
CBR P     OP3    sing N N 80  
CBR OP2   HOP2   sing N N 81  
CBR "O5'" "C5'"  sing N N 82  
CBR N1    C6     sing N N 83  
CBR N1    C2     sing N N 84  
CBR N1    "C1'"  sing N N 85  
CBR C6    C5     doub N N 86  
CBR C6    H6     sing N N 87  
CBR C2    O2     doub N N 88  
CBR C2    N3     sing N N 89  
CBR N3    C4     doub N N 90  
CBR C4    N4     sing N N 91  
CBR C4    C5     sing N N 92  
CBR N4    H41    sing N N 93  
CBR N4    H42    sing N N 94  
CBR "C2'" "C1'"  sing N N 95  
CBR "C2'" "C3'"  sing N N 96  
CBR "C2'" "H2'"  sing N N 97  
CBR "C2'" "H2''" sing N N 98  
CBR "C5'" "C4'"  sing N N 99  
CBR "C5'" "H5'"  sing N N 100 
CBR "C5'" "H5''" sing N N 101 
CBR "C4'" "O4'"  sing N N 102 
CBR "C4'" "C3'"  sing N N 103 
CBR "C4'" "H4'"  sing N N 104 
CBR "O4'" "C1'"  sing N N 105 
CBR "C1'" "H1'"  sing N N 106 
CBR "C3'" "O3'"  sing N N 107 
CBR "C3'" "H3'"  sing N N 108 
CBR "O3'" "HO3'" sing N N 109 
CBR OP3   HOP3   sing N N 110 
G   OP3   P      sing N N 111 
G   OP3   HOP3   sing N N 112 
G   P     OP1    doub N N 113 
G   P     OP2    sing N N 114 
G   P     "O5'"  sing N N 115 
G   OP2   HOP2   sing N N 116 
G   "O5'" "C5'"  sing N N 117 
G   "C5'" "C4'"  sing N N 118 
G   "C5'" "H5'"  sing N N 119 
G   "C5'" "H5''" sing N N 120 
G   "C4'" "O4'"  sing N N 121 
G   "C4'" "C3'"  sing N N 122 
G   "C4'" "H4'"  sing N N 123 
G   "O4'" "C1'"  sing N N 124 
G   "C3'" "O3'"  sing N N 125 
G   "C3'" "C2'"  sing N N 126 
G   "C3'" "H3'"  sing N N 127 
G   "O3'" "HO3'" sing N N 128 
G   "C2'" "O2'"  sing N N 129 
G   "C2'" "C1'"  sing N N 130 
G   "C2'" "H2'"  sing N N 131 
G   "O2'" "HO2'" sing N N 132 
G   "C1'" N9     sing N N 133 
G   "C1'" "H1'"  sing N N 134 
G   N9    C8     sing Y N 135 
G   N9    C4     sing Y N 136 
G   C8    N7     doub Y N 137 
G   C8    H8     sing N N 138 
G   N7    C5     sing Y N 139 
G   C5    C6     sing N N 140 
G   C5    C4     doub Y N 141 
G   C6    O6     doub N N 142 
G   C6    N1     sing N N 143 
G   N1    C2     sing N N 144 
G   N1    H1     sing N N 145 
G   C2    N2     sing N N 146 
G   C2    N3     doub N N 147 
G   N2    H21    sing N N 148 
G   N2    H22    sing N N 149 
G   N3    C4     sing N N 150 
HOH O     H1     sing N N 151 
HOH O     H2     sing N N 152 
U   OP3   P      sing N N 153 
U   OP3   HOP3   sing N N 154 
U   P     OP1    doub N N 155 
U   P     OP2    sing N N 156 
U   P     "O5'"  sing N N 157 
U   OP2   HOP2   sing N N 158 
U   "O5'" "C5'"  sing N N 159 
U   "C5'" "C4'"  sing N N 160 
U   "C5'" "H5'"  sing N N 161 
U   "C5'" "H5''" sing N N 162 
U   "C4'" "O4'"  sing N N 163 
U   "C4'" "C3'"  sing N N 164 
U   "C4'" "H4'"  sing N N 165 
U   "O4'" "C1'"  sing N N 166 
U   "C3'" "O3'"  sing N N 167 
U   "C3'" "C2'"  sing N N 168 
U   "C3'" "H3'"  sing N N 169 
U   "O3'" "HO3'" sing N N 170 
U   "C2'" "O2'"  sing N N 171 
U   "C2'" "C1'"  sing N N 172 
U   "C2'" "H2'"  sing N N 173 
U   "O2'" "HO2'" sing N N 174 
U   "C1'" N1     sing N N 175 
U   "C1'" "H1'"  sing N N 176 
U   N1    C2     sing N N 177 
U   N1    C6     sing N N 178 
U   C2    O2     doub N N 179 
U   C2    N3     sing N N 180 
U   N3    C4     sing N N 181 
U   N3    H3     sing N N 182 
U   C4    O4     doub N N 183 
U   C4    C5     sing N N 184 
U   C5    C6     doub N N 185 
U   C5    H5     sing N N 186 
U   C6    H6     sing N N 187 
# 
loop_
_ndb_struct_conf_na.entry_id 
_ndb_struct_conf_na.feature 
1IK5 'a-form double helix'  
1IK5 'bulge loop'           
1IK5 '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 G   1  1_555 B C   14 1_555 -0.505 -0.101 0.006  -4.698 -3.104  -1.458 1  A_G1:C28_B    A 1  ? B 28 ? 19 1 
1 A G   2  1_555 B CBR 13 1_555 -0.223 -0.192 -0.007 -5.312 -13.976 -0.212 2  A_G2:CBR27_B  A 2  ? B 27 ? 19 1 
1 A U   3  1_555 B A   12 1_555 0.156  -0.058 0.073  -1.428 -9.250  6.919  3  A_U3:A26_B    A 3  ? B 26 ? 20 1 
1 A A   4  1_555 B U   11 1_555 -0.006 -0.142 0.222  -0.838 -13.277 4.068  4  A_A4:U25_B    A 4  ? B 25 ? 20 1 
1 A U   5  1_555 B G   10 1_555 2.647  -0.654 0.151  7.830  -9.030  -2.127 5  A_U5:G24_B    A 5  ? B 24 ? 28 ? 
1 A C   8  1_555 B G   9  1_555 0.081  -0.156 -0.148 1.310  0.017   3.043  6  A_C8:G23_B    A 8  ? B 23 ? 19 1 
1 A G   9  1_555 B U   8  1_555 -0.179 -0.205 -0.242 -3.959 -3.998  0.302  7  A_G9:U22_B    A 9  ? B 22 ? ?  1 
1 A G   10 1_555 B U   5  1_555 -2.466 -0.486 0.206  -8.150 -3.730  0.270  8  A_G10:U19_B   A 10 ? B 19 ? 28 ? 
1 A U   11 1_555 B A   4  1_555 0.022  -0.095 0.051  2.234  -11.290 4.168  9  A_U11:A18_B   A 11 ? B 18 ? 20 1 
1 A A   12 1_555 B U   3  1_555 -0.250 0.000  0.317  2.676  -11.745 5.558  10 A_A12:U17_B   A 12 ? B 17 ? 20 1 
1 A CBR 13 1_555 B G   2  1_555 0.378  -0.101 -0.248 12.308 -14.448 0.281  11 A_CBR13:G16_B A 13 ? B 16 ? 19 1 
1 A C   14 1_555 B G   1  1_555 0.472  -0.206 -0.173 8.308  -9.188  -2.145 12 A_C14:G15_B   A 14 ? B 15 ? 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 G   1  1_555 B C   14 1_555 A G   2  1_555 B CBR 13 1_555 -0.416 -1.622 3.241 -1.703 7.690  33.506 -3.872 0.454  2.827 13.115 
2.904  34.393 1  AA_G1G2:CBR27C28_BB   A 1  ? B 28 ? A 2  ? B 27 ? 
1 A G   2  1_555 B CBR 13 1_555 A U   3  1_555 B A   12 1_555 1.003  -1.763 3.177 1.790  3.210  30.839 -3.881 -1.547 3.034 6.010  
-3.350 31.052 2  AA_G2U3:A26CBR27_BB   A 2  ? B 27 ? A 3  ? B 26 ? 
1 A U   3  1_555 B A   12 1_555 A A   4  1_555 B U   11 1_555 -0.665 -1.782 3.128 -2.036 8.745  27.807 -5.215 0.929  2.504 17.624 
4.102  29.193 3  AA_U3A4:U25A26_BB     A 3  ? B 26 ? A 4  ? B 25 ? 
1 A A   4  1_555 B U   11 1_555 A U   5  1_555 B G   10 1_555 -0.429 -1.032 3.064 1.746  9.685  40.820 -2.350 0.763  2.740 13.647 
-2.460 41.940 4  AA_A4U5:G24U25_BB     A 4  ? B 25 ? A 5  ? B 24 ? 
1 A U   5  1_555 B G   10 1_555 A C   8  1_555 B G   9  1_555 -1.859 -1.845 3.190 -2.173 8.904  38.726 -3.675 2.498  2.811 13.203 
3.222  39.755 5  AA_U5C8:G23G24_BB     A 5  ? B 24 ? A 8  ? B 23 ? 
1 A C   8  1_555 B G   9  1_555 A G   9  1_555 B U   8  1_555 0.018  -2.445 3.436 0.741  5.533  21.906 -8.174 0.215  2.741 14.264 
-1.910 22.597 6  AA_C8G9:U22G23_BB     A 8  ? B 23 ? A 9  ? B 22 ? 
1 A G   9  1_555 B U   8  1_555 A G   10 1_555 B U   5  1_555 2.049  -1.914 3.010 0.465  8.688  40.999 -3.465 -2.825 2.592 12.237 
-0.656 41.873 7  AA_G9G10:U19U22_BB    A 9  ? B 22 ? A 10 ? B 19 ? 
1 A G   10 1_555 B U   5  1_555 A U   11 1_555 B A   4  1_555 0.129  -0.877 3.017 -0.149 9.712  38.184 -2.328 -0.208 2.722 14.560 
0.223  39.355 8  AA_G10U11:A18U19_BB   A 10 ? B 19 ? A 11 ? B 18 ? 
1 A U   11 1_555 B A   4  1_555 A A   12 1_555 B U   3  1_555 0.179  -1.544 3.026 -2.064 11.941 30.354 -4.488 -0.620 2.258 21.747 
3.759  32.631 9  AA_U11A12:U17A18_BB   A 11 ? B 18 ? A 12 ? B 17 ? 
1 A A   12 1_555 B U   3  1_555 A CBR 13 1_555 B G   2  1_555 -0.696 -1.568 3.062 1.598  2.044  33.163 -3.051 1.460  2.927 3.574  
-2.795 33.262 10 AA_A12CBR13:G16U17_BB A 12 ? B 17 ? A 13 ? B 16 ? 
1 A CBR 13 1_555 B G   2  1_555 A C   14 1_555 B G   1  1_555 0.196  -1.969 3.418 0.884  5.768  32.139 -4.496 -0.196 3.033 10.312 
-1.580 32.651 11 AA_CBR13C14:G15G16_BB A 13 ? B 16 ? A 14 ? B 15 ? 
# 
_atom_sites.entry_id                    1IK5 
_atom_sites.fract_transf_matrix[1][1]   0.016656 
_atom_sites.fract_transf_matrix[1][2]   0.000000 
_atom_sites.fract_transf_matrix[1][3]   0.009941 
_atom_sites.fract_transf_matrix[2][1]   0.000000 
_atom_sites.fract_transf_matrix[2][2]   0.033864 
_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]   0.022208 
_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 
BR 
C  
MG 
N  
O  
P  
# 
loop_