data_1R7W
# 
_entry.id   1R7W 
# 
_audit_conform.dict_name       mmcif_pdbx.dic 
_audit_conform.dict_version    5.392 
_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   1R7W         pdb_00001r7w 10.2210/pdb1r7w/pdb 
RCSB  RCSB020546   ?            ?                   
WWPDB D_1000020546 ?            ?                   
# 
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 2004-05-25 
2 'Structure model' 1 1 2008-04-29 
3 'Structure model' 1 2 2011-07-13 
4 'Structure model' 1 3 2022-03-02 
5 'Structure model' 1 4 2024-05-22 
# 
_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'      
6 5 'Structure model' 'Data collection'           
# 
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' database_2            
2 4 'Structure model' pdbx_nmr_software     
3 4 'Structure model' pdbx_struct_assembly  
4 4 'Structure model' pdbx_struct_oper_list 
5 5 'Structure model' chem_comp_atom        
6 5 'Structure model' chem_comp_bond        
# 
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_nmr_software.name'             
# 
_pdbx_database_status.status_code                     REL 
_pdbx_database_status.entry_id                        1R7W 
_pdbx_database_status.recvd_initial_deposition_date   2003-10-22 
_pdbx_database_status.deposit_site                    RCSB 
_pdbx_database_status.process_site                    RCSB 
_pdbx_database_status.status_code_mr                  REL 
_pdbx_database_status.SG_entry                        . 
_pdbx_database_status.pdb_format_compatible           Y 
_pdbx_database_status.status_code_sf                  ? 
_pdbx_database_status.status_code_cs                  ? 
_pdbx_database_status.status_code_nmr_data            ? 
_pdbx_database_status.methods_development_category    ? 
# 
_pdbx_database_related.db_name        PDB 
_pdbx_database_related.db_id          1R7Z 
_pdbx_database_related.details        
'NMR STRUCTURE OF THE R(GGAGGACAUUCCUCACGGGUGACCGUGGUCCUCC), DOMAIN IV STEM-LOOP B OF ENTEROVIRAL IRES WITH AUUCCU BULGE' 
_pdbx_database_related.content_type   unspecified 
# 
loop_
_audit_author.name 
_audit_author.pdbx_ordinal 
'Du, Z.'        1 
'Ulyanov, N.B.' 2 
'Yu, J.'        3 
'James, T.L.'   4 
# 
_citation.id                        primary 
_citation.title                     
;NMR Structures of Loop B RNAs from the Stem-Loop IV Domain of the Enterovirus Internal Ribosome Entry Site: A Single C to U Substitution Drastically Changes the Shape and Flexibility of RNA(,).
;
_citation.journal_abbrev            Biochemistry 
_citation.journal_volume            43 
_citation.page_first                5757 
_citation.page_last                 5771 
_citation.year                      2004 
_citation.journal_id_ASTM           BICHAW 
_citation.country                   US 
_citation.journal_id_ISSN           0006-2960 
_citation.journal_id_CSD            0033 
_citation.book_publisher            ? 
_citation.pdbx_database_id_PubMed   15134450 
_citation.pdbx_database_id_DOI      10.1021/bi0363228 
# 
loop_
_citation_author.citation_id 
_citation_author.name 
_citation_author.ordinal 
_citation_author.identifier_ORCID 
primary 'Du, Z.'        1 ? 
primary 'Ulyanov, N.B.' 2 ? 
primary 'Yu, J.'        3 ? 
primary 'Andino, R.'    4 ? 
primary 'James, T.L.'   5 ? 
# 
_entity.id                         1 
_entity.type                       polymer 
_entity.src_method                 syn 
_entity.pdbx_description           34-MER 
_entity.formula_weight             10897.511 
_entity.pdbx_number_of_molecules   1 
_entity.pdbx_ec                    ? 
_entity.pdbx_mutation              'SEQUENCE VARIANT WITH THE AUCCCU BULGE' 
_entity.pdbx_fragment              'DOMAIN IV, LOOP B' 
_entity.details                    'RNA FRAGMENT OF ENTEROVIRAL IRES' 
# 
_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       GGAGGACAUCCCUCACGGGUGACCGUGGUCCUCC 
_entity_poly.pdbx_seq_one_letter_code_can   GGAGGACAUCCCUCACGGGUGACCGUGGUCCUCC 
_entity_poly.pdbx_strand_id                 A 
_entity_poly.pdbx_target_identifier         ? 
# 
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  G n 
1 5  G n 
1 6  A n 
1 7  C n 
1 8  A n 
1 9  U n 
1 10 C n 
1 11 C n 
1 12 C n 
1 13 U n 
1 14 C n 
1 15 A n 
1 16 C n 
1 17 G n 
1 18 G n 
1 19 G n 
1 20 U n 
1 21 G n 
1 22 A n 
1 23 C n 
1 24 C n 
1 25 G n 
1 26 U n 
1 27 G n 
1 28 G n 
1 29 U n 
1 30 C n 
1 31 C n 
1 32 U n 
1 33 C n 
1 34 C 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    ? 
_pdbx_entity_src_syn.organism_common_name   ? 
_pdbx_entity_src_syn.ncbi_taxonomy_id       ? 
_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 
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  G 4  4  4  G G 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  C 7  7  7  C C A . n 
A 1 8  A 8  8  8  A A A . n 
A 1 9  U 9  9  9  U U A . n 
A 1 10 C 10 10 10 C C A . n 
A 1 11 C 11 11 11 C C A . n 
A 1 12 C 12 12 12 C C A . n 
A 1 13 U 13 13 13 U U A . n 
A 1 14 C 14 14 14 C C A . n 
A 1 15 A 15 15 15 A A A . n 
A 1 16 C 16 16 16 C C A . n 
A 1 17 G 17 17 17 G G A . n 
A 1 18 G 18 18 18 G G A . n 
A 1 19 G 19 19 19 G G A . n 
A 1 20 U 20 20 20 U U 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 C 23 23 23 C C A . n 
A 1 24 C 24 24 24 C C A . n 
A 1 25 G 25 25 25 G G A . n 
A 1 26 U 26 26 26 U U A . n 
A 1 27 G 27 27 27 G G A . n 
A 1 28 G 28 28 28 G G A . n 
A 1 29 U 29 29 29 U U A . n 
A 1 30 C 30 30 30 C C A . n 
A 1 31 C 31 31 31 C C A . n 
A 1 32 U 32 32 32 U U A . n 
A 1 33 C 33 33 33 C C A . n 
A 1 34 C 34 34 34 C C A . n 
# 
_exptl.entry_id          1R7W 
_exptl.method            'SOLUTION NMR' 
_exptl.crystals_number   ? 
# 
_exptl_crystal.id                    1 
_exptl_crystal.density_meas          ? 
_exptl_crystal.density_percent_sol   ? 
_exptl_crystal.density_Matthews      ? 
_exptl_crystal.description           ? 
# 
_diffrn.id                     1 
_diffrn.ambient_temp           ? 
_diffrn.ambient_temp_details   ? 
_diffrn.crystal_id             1 
# 
_diffrn_radiation.diffrn_id                        1 
_diffrn_radiation.wavelength_id                    1 
_diffrn_radiation.monochromator                    ? 
_diffrn_radiation.pdbx_monochromatic_or_laue_m_l   M 
_diffrn_radiation.pdbx_diffrn_protocol             'SINGLE WAVELENGTH' 
_diffrn_radiation.pdbx_scattering_type             ? 
# 
_diffrn_radiation_wavelength.id           1 
_diffrn_radiation_wavelength.wavelength   . 
_diffrn_radiation_wavelength.wt           1.0 
# 
_database_PDB_matrix.entry_id          1R7W 
_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                  1R7W 
_struct.title                     
'NMR STRUCTURE OF THE R(GGAGGACAUCCCUCACGGGUGACCGUGGUCCUCC), DOMAIN IV STEM-LOOP B OF ENTEROVIRAL IRES WITH AUCCCU BULGE' 
_struct.pdbx_model_details        ? 
_struct.pdbx_CASP_flag            ? 
_struct.pdbx_model_type_details   ? 
# 
_struct_keywords.entry_id        1R7W 
_struct_keywords.pdbx_keywords   RNA 
_struct_keywords.text            'STEM-AND-LOOP STRUCTURE, SIX-NUCLEOTIDE BULGE, GUGA TETRALOOP, RNA' 
# 
_struct_asym.id                            A 
_struct_asym.pdbx_blank_PDB_chainid_flag   N 
_struct_asym.pdbx_modified                 N 
_struct_asym.entity_id                     1 
_struct_asym.details                       ? 
# 
_struct_ref.id                         1 
_struct_ref.entity_id                  1 
_struct_ref.db_name                    PDB 
_struct_ref.db_code                    1R7W 
_struct_ref.pdbx_db_accession          1R7W 
_struct_ref.pdbx_db_isoform            ? 
_struct_ref.pdbx_seq_one_letter_code   ? 
_struct_ref.pdbx_align_begin           ? 
# 
_struct_ref_seq.align_id                      1 
_struct_ref_seq.ref_id                        1 
_struct_ref_seq.pdbx_PDB_id_code              1R7W 
_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                 34 
_struct_ref_seq.pdbx_seq_align_end_ins_code   ? 
_struct_ref_seq.pdbx_db_accession             1R7W 
_struct_ref_seq.db_align_beg                  1 
_struct_ref_seq.pdbx_db_align_beg_ins_code    ? 
_struct_ref_seq.db_align_end                  34 
_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       34 
# 
_pdbx_struct_assembly.id                   1 
_pdbx_struct_assembly.details              author_defined_assembly 
_pdbx_struct_assembly.method_details       ? 
_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 
# 
_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 
# 
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 G 1  N1 ? ? ? 1_555 A C 34 N3 ? ? A G 1  A C 34 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog2  hydrog ? ? A G 1  N2 ? ? ? 1_555 A C 34 O2 ? ? A G 1  A C 34 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog3  hydrog ? ? A G 1  O6 ? ? ? 1_555 A C 34 N4 ? ? A G 1  A C 34 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog4  hydrog ? ? A G 2  N1 ? ? ? 1_555 A C 33 N3 ? ? A G 2  A C 33 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog5  hydrog ? ? A G 2  N2 ? ? ? 1_555 A C 33 O2 ? ? A G 2  A C 33 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog6  hydrog ? ? A G 2  O6 ? ? ? 1_555 A C 33 N4 ? ? A G 2  A C 33 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog7  hydrog ? ? A A 3  N1 ? ? ? 1_555 A U 32 N3 ? ? A A 3  A U 32 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog8  hydrog ? ? A A 3  N6 ? ? ? 1_555 A U 32 O4 ? ? A A 3  A U 32 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog9  hydrog ? ? A G 4  N1 ? ? ? 1_555 A C 31 N3 ? ? A G 4  A C 31 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog10 hydrog ? ? A G 4  N2 ? ? ? 1_555 A C 31 O2 ? ? A G 4  A C 31 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog11 hydrog ? ? A G 4  O6 ? ? ? 1_555 A C 31 N4 ? ? A G 4  A C 31 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog12 hydrog ? ? A G 5  N1 ? ? ? 1_555 A C 30 N3 ? ? A G 5  A C 30 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog13 hydrog ? ? A G 5  N2 ? ? ? 1_555 A C 30 O2 ? ? A G 5  A C 30 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog14 hydrog ? ? A G 5  O6 ? ? ? 1_555 A C 30 N4 ? ? A G 5  A C 30 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog15 hydrog ? ? A A 6  N1 ? ? ? 1_555 A U 29 N3 ? ? A A 6  A U 29 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog16 hydrog ? ? A A 6  N6 ? ? ? 1_555 A U 29 O4 ? ? A A 6  A U 29 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog17 hydrog ? ? A C 7  N3 ? ? ? 1_555 A G 28 N1 ? ? A C 7  A G 28 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog18 hydrog ? ? A C 7  N4 ? ? ? 1_555 A G 28 O6 ? ? A C 7  A G 28 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog19 hydrog ? ? A C 7  O2 ? ? ? 1_555 A G 28 N2 ? ? A C 7  A G 28 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog20 hydrog ? ? A C 14 N3 ? ? ? 1_555 A G 27 N1 ? ? A C 14 A G 27 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog21 hydrog ? ? A C 14 N4 ? ? ? 1_555 A G 27 O6 ? ? A C 14 A G 27 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog22 hydrog ? ? A C 14 O2 ? ? ? 1_555 A G 27 N2 ? ? A C 14 A G 27 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog23 hydrog ? ? A A 15 N1 ? ? ? 1_555 A U 26 N3 ? ? A A 15 A U 26 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog24 hydrog ? ? A A 15 N6 ? ? ? 1_555 A U 26 O4 ? ? A A 15 A U 26 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog25 hydrog ? ? A C 16 N3 ? ? ? 1_555 A G 25 N1 ? ? A C 16 A G 25 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog26 hydrog ? ? A C 16 N4 ? ? ? 1_555 A G 25 O6 ? ? A C 16 A G 25 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog27 hydrog ? ? A C 16 O2 ? ? ? 1_555 A G 25 N2 ? ? A C 16 A G 25 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog28 hydrog ? ? A G 17 N1 ? ? ? 1_555 A C 24 N3 ? ? A G 17 A C 24 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog29 hydrog ? ? A G 17 N2 ? ? ? 1_555 A C 24 O2 ? ? A G 17 A C 24 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog30 hydrog ? ? A G 17 O6 ? ? ? 1_555 A C 24 N4 ? ? A G 17 A C 24 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog31 hydrog ? ? A G 18 N1 ? ? ? 1_555 A C 23 N3 ? ? A G 18 A C 23 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog32 hydrog ? ? A G 18 N2 ? ? ? 1_555 A C 23 O2 ? ? A G 18 A C 23 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog33 hydrog ? ? A G 18 O6 ? ? ? 1_555 A C 23 N4 ? ? A G 18 A C 23 1_555 ? ? ? ? ? ? WATSON-CRICK  ? ? ? 
hydrog34 hydrog ? ? A G 19 N2 ? ? ? 1_555 A A 22 N7 ? ? A G 19 A A 22 1_555 ? ? ? ? ? ? 'G-A MISPAIR' ? ? ? 
# 
_struct_conn_type.id          hydrog 
_struct_conn_type.criteria    ? 
_struct_conn_type.reference   ? 
# 
loop_
_pdbx_validate_rmsd_bond.id 
_pdbx_validate_rmsd_bond.PDB_model_num 
_pdbx_validate_rmsd_bond.auth_atom_id_1 
_pdbx_validate_rmsd_bond.auth_asym_id_1 
_pdbx_validate_rmsd_bond.auth_comp_id_1 
_pdbx_validate_rmsd_bond.auth_seq_id_1 
_pdbx_validate_rmsd_bond.PDB_ins_code_1 
_pdbx_validate_rmsd_bond.label_alt_id_1 
_pdbx_validate_rmsd_bond.auth_atom_id_2 
_pdbx_validate_rmsd_bond.auth_asym_id_2 
_pdbx_validate_rmsd_bond.auth_comp_id_2 
_pdbx_validate_rmsd_bond.auth_seq_id_2 
_pdbx_validate_rmsd_bond.PDB_ins_code_2 
_pdbx_validate_rmsd_bond.label_alt_id_2 
_pdbx_validate_rmsd_bond.bond_value 
_pdbx_validate_rmsd_bond.bond_target_value 
_pdbx_validate_rmsd_bond.bond_deviation 
_pdbx_validate_rmsd_bond.bond_standard_deviation 
_pdbx_validate_rmsd_bond.linker_flag 
1 8  "O4'" A U 9 ? ? "C1'" A U 9 ? ? 1.506 1.415 0.091 0.012 N 
2 19 "O4'" A U 9 ? ? "C1'" A U 9 ? ? 1.510 1.415 0.095 0.012 N 
# 
loop_
_pdbx_validate_rmsd_angle.id 
_pdbx_validate_rmsd_angle.PDB_model_num 
_pdbx_validate_rmsd_angle.auth_atom_id_1 
_pdbx_validate_rmsd_angle.auth_asym_id_1 
_pdbx_validate_rmsd_angle.auth_comp_id_1 
_pdbx_validate_rmsd_angle.auth_seq_id_1 
_pdbx_validate_rmsd_angle.PDB_ins_code_1 
_pdbx_validate_rmsd_angle.label_alt_id_1 
_pdbx_validate_rmsd_angle.auth_atom_id_2 
_pdbx_validate_rmsd_angle.auth_asym_id_2 
_pdbx_validate_rmsd_angle.auth_comp_id_2 
_pdbx_validate_rmsd_angle.auth_seq_id_2 
_pdbx_validate_rmsd_angle.PDB_ins_code_2 
_pdbx_validate_rmsd_angle.label_alt_id_2 
_pdbx_validate_rmsd_angle.auth_atom_id_3 
_pdbx_validate_rmsd_angle.auth_asym_id_3 
_pdbx_validate_rmsd_angle.auth_comp_id_3 
_pdbx_validate_rmsd_angle.auth_seq_id_3 
_pdbx_validate_rmsd_angle.PDB_ins_code_3 
_pdbx_validate_rmsd_angle.label_alt_id_3 
_pdbx_validate_rmsd_angle.angle_value 
_pdbx_validate_rmsd_angle.angle_target_value 
_pdbx_validate_rmsd_angle.angle_deviation 
_pdbx_validate_rmsd_angle.angle_standard_deviation 
_pdbx_validate_rmsd_angle.linker_flag 
1 8  "C1'" A U 9 ? ? "O4'" A U 9 ? ? "C4'" A U 9 ? ? 105.10 109.70 -4.60 0.70 N 
2 19 "C1'" A U 9 ? ? "O4'" A U 9 ? ? "C4'" A U 9 ? ? 104.86 109.70 -4.84 0.70 N 
# 
_pdbx_nmr_ensemble.entry_id                                      1R7W 
_pdbx_nmr_ensemble.conformers_calculated_total_number            50 
_pdbx_nmr_ensemble.conformers_submitted_total_number             20 
_pdbx_nmr_ensemble.conformer_selection_criteria                  
'LOWEST TOTAL ENERGY (A WEIGHTED SUM OF CONFORMATIONAL ENERGY AND RESTRAINT ENERGY)' 
_pdbx_nmr_ensemble.average_constraints_per_residue               ? 
_pdbx_nmr_ensemble.average_constraint_violations_per_residue     ? 
_pdbx_nmr_ensemble.maximum_distance_constraint_violation         ? 
_pdbx_nmr_ensemble.average_distance_constraint_violation         ? 
_pdbx_nmr_ensemble.maximum_upper_distance_constraint_violation   ? 
_pdbx_nmr_ensemble.maximum_lower_distance_constraint_violation   ? 
_pdbx_nmr_ensemble.distance_constraint_violation_method          ? 
_pdbx_nmr_ensemble.maximum_torsion_angle_constraint_violation    ? 
_pdbx_nmr_ensemble.average_torsion_angle_constraint_violation    ? 
_pdbx_nmr_ensemble.torsion_angle_constraint_violation_method     ? 
# 
_pdbx_nmr_representative.entry_id             1R7W 
_pdbx_nmr_representative.conformer_id         1 
_pdbx_nmr_representative.selection_criteria   'lowest energy' 
# 
loop_
_pdbx_nmr_sample_details.solution_id 
_pdbx_nmr_sample_details.contents 
_pdbx_nmr_sample_details.solvent_system 
1 '1mM unlabeled RNA, 25mM NaCl, 25mM sodium phosphate buffer (pH 6.5), 90% H2O, 10% D2O' '90% H2O/10% D2O' 
2 '1mM unlabeled RNA, 25mM NaCl, 25mM sodium phosphate buffer (pH 6.5), D2O' D2O               
3 '1mM of uniformly labeled RNA with 13C, 15N, 25mM NaCl, 25mM sodium phosphate buffer (pH 6.5), 90% H2O, 10% D2O' 
'90% H2O/10% D2O' 
4 '1mM of uniformly labeled RNA with 13C, 15N, 25mM NaCl, 25mM sodium phosphate buffer (pH 6.5), D2O' D2O               
5 '1mM of RNA labeled in residues A and U with 13C, 15N, 25mM NaCl, 25mM sodium phosphate buffer (pH 6.5), D2O' D2O               
6 '1mM of RNA labeled in residues C with 13C, 15N, 25mM NaCl, 25mM sodium phosphate buffer (pH 6.5), D2O' D2O               
7 
;1mM of uniformly labeled RNA with 13C, 15N, 25mM NaCl, 25mM sodium phosphate buffer (pH 6.5), 5% (weight/volume) of C12E6/n-hexanol mixture (molar ratio 0.64), D2O
;
D2O               
# 
loop_
_pdbx_nmr_exptl_sample_conditions.conditions_id 
_pdbx_nmr_exptl_sample_conditions.temperature 
_pdbx_nmr_exptl_sample_conditions.pressure 
_pdbx_nmr_exptl_sample_conditions.pH 
_pdbx_nmr_exptl_sample_conditions.ionic_strength 
_pdbx_nmr_exptl_sample_conditions.pressure_units 
_pdbx_nmr_exptl_sample_conditions.temperature_units 
1 283 ambient 6.5 '50 mM Na+ ions' ? K 
2 298 ambient 6.5 '50 mM Na+ ions' ? K 
# 
loop_
_pdbx_nmr_exptl.experiment_id 
_pdbx_nmr_exptl.conditions_id 
_pdbx_nmr_exptl.type 
_pdbx_nmr_exptl.solution_id 
1 1 '2D NOESY'                  1 
2 2 '2D NOESY'                  2 
3 2 DQF-COSY                    2 
4 2 3D_13C-separated_NOESY      3 
5 2 '1H-13C CONSTANT TIME HSQC' 7 
# 
_pdbx_nmr_refine.entry_id           1R7W 
_pdbx_nmr_refine.method             
'FULL MATRIX RELAXATION ANALYSIS OF NOE, RANDOM ERROR ANALYSIS OF NOE, SIMULATED ANNEALING USING RESTRAINED MOLECULAR DYNAMICS' 
_pdbx_nmr_refine.details            'STRUCTURES ARE REFINED BASED ON 575 NOE-DERIVED DISTANCES AND 86 RESIDUAL DIPOLAR COUPLINGS' 
_pdbx_nmr_refine.software_ordinal   1 
# 
loop_
_pdbx_nmr_software.classification 
_pdbx_nmr_software.name 
_pdbx_nmr_software.version 
_pdbx_nmr_software.authors 
_pdbx_nmr_software.ordinal 
collection                    VNMR      6.1 'Varian Associates, Inc.' 1 
processing                    NMRPipe   2.1 F.Delaglio                2 
'iterative matrix relaxation' MARDIGRAS 3.2 T.L.James                 3 
refinement                    DYANA     1.5 P.Guntert                 4 
refinement                    Amber     7   D.A.Case                  5 
# 
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 
U OP3    O N N 111 
U P      P N N 112 
U OP1    O N N 113 
U OP2    O N N 114 
U "O5'"  O N N 115 
U "C5'"  C N N 116 
U "C4'"  C N R 117 
U "O4'"  O N N 118 
U "C3'"  C N S 119 
U "O3'"  O N N 120 
U "C2'"  C N R 121 
U "O2'"  O N N 122 
U "C1'"  C N R 123 
U N1     N N N 124 
U C2     C N N 125 
U O2     O N N 126 
U N3     N N N 127 
U C4     C N N 128 
U O4     O N N 129 
U C5     C N N 130 
U C6     C N N 131 
U HOP3   H N N 132 
U HOP2   H N N 133 
U "H5'"  H N N 134 
U "H5''" H N N 135 
U "H4'"  H N N 136 
U "H3'"  H N N 137 
U "HO3'" H N N 138 
U "H2'"  H N N 139 
U "HO2'" H N N 140 
U "H1'"  H N N 141 
U H3     H N N 142 
U H5     H N N 143 
U H6     H N N 144 
# 
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 
U OP3   P      sing N N 116 
U OP3   HOP3   sing N N 117 
U P     OP1    doub N N 118 
U P     OP2    sing N N 119 
U P     "O5'"  sing N N 120 
U OP2   HOP2   sing N N 121 
U "O5'" "C5'"  sing N N 122 
U "C5'" "C4'"  sing N N 123 
U "C5'" "H5'"  sing N N 124 
U "C5'" "H5''" sing N N 125 
U "C4'" "O4'"  sing N N 126 
U "C4'" "C3'"  sing N N 127 
U "C4'" "H4'"  sing N N 128 
U "O4'" "C1'"  sing N N 129 
U "C3'" "O3'"  sing N N 130 
U "C3'" "C2'"  sing N N 131 
U "C3'" "H3'"  sing N N 132 
U "O3'" "HO3'" sing N N 133 
U "C2'" "O2'"  sing N N 134 
U "C2'" "C1'"  sing N N 135 
U "C2'" "H2'"  sing N N 136 
U "O2'" "HO2'" sing N N 137 
U "C1'" N1     sing N N 138 
U "C1'" "H1'"  sing N N 139 
U N1    C2     sing N N 140 
U N1    C6     sing N N 141 
U C2    O2     doub N N 142 
U C2    N3     sing N N 143 
U N3    C4     sing N N 144 
U N3    H3     sing N N 145 
U C4    O4     doub N N 146 
U C4    C5     sing N N 147 
U C5    C6     doub N N 148 
U C5    H5     sing N N 149 
U C6    H6     sing N N 150 
# 
loop_
_ndb_struct_conf_na.entry_id 
_ndb_struct_conf_na.feature 
1R7W 'double helix'         
1R7W 'a-form double helix'  
1R7W tetraloop              
1R7W 'bulge loop'           
1R7W '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 A C 34 1_555 -0.745 -0.156 0.023  -5.821  -5.034  -1.254  1  A_G1:C34_A  A 1  ? A 34 ? 19 1 
1 A G 2  1_555 A C 33 1_555 0.456  -0.036 -0.265 -4.052  -2.189  -6.563  2  A_G2:C33_A  A 2  ? A 33 ? 19 1 
1 A A 3  1_555 A U 32 1_555 -0.049 0.021  -0.212 -5.271  -4.676  8.534   3  A_A3:U32_A  A 3  ? A 32 ? 20 1 
1 A G 4  1_555 A C 31 1_555 0.120  0.065  -0.528 -11.303 -2.686  3.559   4  A_G4:C31_A  A 4  ? A 31 ? 19 1 
1 A G 5  1_555 A C 30 1_555 -0.328 -0.046 -0.374 -4.733  1.805   -5.847  5  A_G5:C30_A  A 5  ? A 30 ? 19 1 
1 A A 6  1_555 A U 29 1_555 -0.438 -0.068 0.057  8.875   5.194   3.762   6  A_A6:U29_A  A 6  ? A 29 ? 20 1 
1 A C 7  1_555 A G 28 1_555 0.060  -0.076 0.283  6.491   -8.113  -0.461  7  A_C7:G28_A  A 7  ? A 28 ? 19 1 
1 A C 14 1_555 A G 27 1_555 -0.266 -0.032 -0.166 -5.039  -6.381  -3.568  8  A_C14:G27_A A 14 ? A 27 ? 19 1 
1 A A 15 1_555 A U 26 1_555 0.402  -0.085 -0.884 -18.372 -12.423 -1.080  9  A_A15:U26_A A 15 ? A 26 ? 20 1 
1 A C 16 1_555 A G 25 1_555 0.539  -0.443 -1.162 6.846   -19.960 9.001   10 A_C16:G25_A A 16 ? A 25 ? 19 1 
1 A G 17 1_555 A C 24 1_555 0.229  -0.059 0.051  3.593   -12.178 -0.191  11 A_G17:C24_A A 17 ? A 24 ? 19 1 
1 A G 18 1_555 A C 23 1_555 -0.193 -0.074 -0.452 -3.772  -5.687  -4.145  12 A_G18:C23_A A 18 ? A 23 ? 19 1 
1 A G 19 1_555 A A 22 1_555 7.699  -4.742 1.073  22.597  -0.890  -45.187 13 A_G19:A22_A A 19 ? A 22 ? ?  ? 
# 
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 A C 34 1_555 A G 2  1_555 A C 33 1_555 -0.865 -2.042 3.680 0.937   -13.243 35.151 -1.032 1.497  4.134 -21.024 
-1.487  37.500 1  AA_G1G2:C33C34_AA   A 1  ? A 34 ? A 2  ? A 33 ? 
1 A G 2  1_555 A C 33 1_555 A A 3  1_555 A U 32 1_555 1.215  -2.490 3.415 0.471   1.381   22.161 -6.998 -2.973 3.280 3.588   
-1.223  22.209 2  AA_G2A3:U32C33_AA   A 2  ? A 33 ? A 3  ? A 32 ? 
1 A A 3  1_555 A U 32 1_555 A G 4  1_555 A C 31 1_555 -0.367 -2.180 3.359 1.319   12.912  31.867 -5.515 0.808  2.311 22.392  
-2.288  34.345 3  AA_A3G4:C31U32_AA   A 3  ? A 32 ? A 4  ? A 31 ? 
1 A G 4  1_555 A C 31 1_555 A G 5  1_555 A C 30 1_555 -0.572 -2.021 3.271 0.050   4.226   22.108 -6.642 1.482  2.838 10.891  
-0.129  22.504 4  AA_G4G5:C30C31_AA   A 4  ? A 31 ? A 5  ? A 30 ? 
1 A G 5  1_555 A C 30 1_555 A A 6  1_555 A U 29 1_555 0.236  -1.687 3.102 -3.905  6.165   27.771 -4.638 -1.258 2.617 12.572  7.964 
28.695 5  AA_G5A6:U29C30_AA   A 5  ? A 30 ? A 6  ? A 29 ? 
1 A A 6  1_555 A U 29 1_555 A C 7  1_555 A G 28 1_555 0.149  -2.175 3.552 -1.754  6.791   30.781 -5.282 -0.604 3.002 12.590  3.252 
31.551 6  AA_A6C7:G28U29_AA   A 6  ? A 29 ? A 7  ? A 28 ? 
1 A C 14 1_555 A G 27 1_555 A A 15 1_555 A U 26 1_555 0.000  -1.633 3.662 4.394   20.734  31.675 -5.120 0.553  2.204 33.685  
-7.138  37.960 7  AA_C14A15:U26G27_AA A 14 ? A 27 ? A 15 ? A 26 ? 
1 A A 15 1_555 A U 26 1_555 A C 16 1_555 A G 25 1_555 0.478  -1.130 2.965 6.684   6.891   29.344 -3.313 0.253  2.678 13.167  
-12.770 30.842 8  AA_A15C16:G25U26_AA A 15 ? A 26 ? A 16 ? A 25 ? 
1 A C 16 1_555 A G 25 1_555 A G 17 1_555 A C 24 1_555 -0.081 -1.331 3.841 -7.591  11.325  27.402 -5.009 -1.510 2.989 22.245  
14.910  30.548 9  AA_C16G17:C24G25_AA A 16 ? A 25 ? A 17 ? A 24 ? 
1 A G 17 1_555 A C 24 1_555 A G 18 1_555 A C 23 1_555 -0.255 -1.733 3.470 3.477   13.571  31.294 -4.988 0.957  2.486 23.725  
-6.079  34.215 10 AA_G17G18:C23C24_AA A 17 ? A 24 ? A 18 ? A 23 ? 
1 A G 18 1_555 A C 23 1_555 A G 19 1_555 A A 22 1_555 -3.688 -1.653 2.686 -10.179 2.583   52.818 -1.974 3.499  3.216 2.871   
11.316  53.778 11 AA_G18G19:A22C23_AA A 18 ? A 23 ? A 19 ? A 22 ? 
# 
_pdbx_nmr_spectrometer.spectrometer_id   1 
_pdbx_nmr_spectrometer.model             INOVA 
_pdbx_nmr_spectrometer.manufacturer      Varian 
_pdbx_nmr_spectrometer.field_strength    600 
_pdbx_nmr_spectrometer.type              ? 
# 
_atom_sites.entry_id                    1R7W 
_atom_sites.fract_transf_matrix[1][1]   1.000000 
_atom_sites.fract_transf_matrix[1][2]   0.000000 
_atom_sites.fract_transf_matrix[1][3]   0.000000 
_atom_sites.fract_transf_matrix[2][1]   0.000000 
_atom_sites.fract_transf_matrix[2][2]   1.000000 
_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]   1.000000 
_atom_sites.fract_transf_vector[1]      0.00000 
_atom_sites.fract_transf_vector[2]      0.00000 
_atom_sites.fract_transf_vector[3]      0.00000 
# 
loop_
_atom_type.symbol 
C 
H 
N 
O 
P 
# 
loop_