data_1NAO
# 
_entry.id   1NAO 
# 
_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   1NAO         pdb_00001nao 10.2210/pdb1nao/pdb 
WWPDB D_1000175209 ?            ?                   
# 
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 1997-01-27 
2 'Structure model' 1 1 2008-03-10 
3 'Structure model' 1 2 2011-07-13 
4 'Structure model' 1 3 2022-02-23 
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' 'Database references'       
4 4 'Structure model' 'Derived calculations'      
5 4 'Structure model' Other                       
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_database_status  
3 4 'Structure model' pdbx_struct_assembly  
4 4 'Structure model' pdbx_struct_oper_list 
5 4 'Structure model' struct_conn           
6 5 'Structure model' chem_comp_atom        
7 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_database_status.process_site'  
4  4 'Structure model' '_struct_conn.pdbx_dist_value'        
5  4 'Structure model' '_struct_conn.pdbx_leaving_atom_flag' 
6  4 'Structure model' '_struct_conn.ptnr1_auth_comp_id'     
7  4 'Structure model' '_struct_conn.ptnr1_auth_seq_id'      
8  4 'Structure model' '_struct_conn.ptnr1_label_atom_id'    
9  4 'Structure model' '_struct_conn.ptnr1_label_comp_id'    
10 4 'Structure model' '_struct_conn.ptnr1_label_seq_id'     
11 4 'Structure model' '_struct_conn.ptnr2_auth_comp_id'     
12 4 'Structure model' '_struct_conn.ptnr2_auth_seq_id'      
13 4 'Structure model' '_struct_conn.ptnr2_label_atom_id'    
14 4 'Structure model' '_struct_conn.ptnr2_label_comp_id'    
15 4 'Structure model' '_struct_conn.ptnr2_label_seq_id'     
# 
_pdbx_database_status.status_code                     REL 
_pdbx_database_status.entry_id                        1NAO 
_pdbx_database_status.recvd_initial_deposition_date   1996-03-29 
_pdbx_database_status.deposit_site                    ? 
_pdbx_database_status.process_site                    BNL 
_pdbx_database_status.status_code_sf                  ? 
_pdbx_database_status.status_code_mr                  REL 
_pdbx_database_status.SG_entry                        ? 
_pdbx_database_status.pdb_format_compatible           Y 
_pdbx_database_status.status_code_cs                  ? 
_pdbx_database_status.status_code_nmr_data            ? 
_pdbx_database_status.methods_development_category    ? 
# 
loop_
_audit_author.name 
_audit_author.pdbx_ordinal 
'Nishizaki, T.' 1 
'Iwai, S.'      2 
'Ohtsuka, E.'   3 
'Nakamura, H.'  4 
# 
_citation.id                        primary 
_citation.title                     
;Solution structure of an RNA.2'-O-methylated RNA hybrid duplex containing an RNA.DNA hybrid segment at the center.
;
_citation.journal_abbrev            Biochemistry 
_citation.journal_volume            36 
_citation.page_first                2577 
_citation.page_last                 2585 
_citation.year                      1997 
_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   9054564 
_citation.pdbx_database_id_DOI      10.1021/bi962297c 
# 
loop_
_citation_author.citation_id 
_citation_author.name 
_citation_author.ordinal 
_citation_author.identifier_ORCID 
primary 'Nishizaki, T.' 1 ? 
primary 'Iwai, S.'      2 ? 
primary 'Ohtsuka, E.'   3 ? 
primary 'Nakamura, H.'  4 ? 
# 
loop_
_entity.id 
_entity.type 
_entity.src_method 
_entity.pdbx_description 
_entity.formula_weight 
_entity.pdbx_number_of_molecules 
_entity.pdbx_ec 
_entity.pdbx_mutation 
_entity.pdbx_fragment 
_entity.details 
1 polymer syn 
;RNA (5'-R(*GP*GP*AP*GP*AP*UP*GP*AP*C)-3')
;
2934.831 1 ? ? ? 'A SUBSTRATE OF RNASE H' 
2 polymer syn 
;DNA/RNA (5'-R(*OMGP*OMUP*OMC)-D(P*AP*TP*CP*T)-R(P*OMCP*OMC)-3')
;
2802.865 1 ? ? ? 'A SUBSTRATE OF RNASE H' 
# 
loop_
_entity_poly.entity_id 
_entity_poly.type 
_entity_poly.nstd_linkage 
_entity_poly.nstd_monomer 
_entity_poly.pdbx_seq_one_letter_code 
_entity_poly.pdbx_seq_one_letter_code_can 
_entity_poly.pdbx_strand_id 
_entity_poly.pdbx_target_identifier 
1 polyribonucleotide                                  no no  GGAGAUGAC                                   GGAGAUGAC A ? 
2 'polydeoxyribonucleotide/polyribonucleotide hybrid' no yes '(OMG)(OMU)(OMC)(DA)(DT)(DC)(DT)(OMC)(OMC)' GUCATCTCC B ? 
# 
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 A   n 
1 6 U   n 
1 7 G   n 
1 8 A   n 
1 9 C   n 
2 1 OMG n 
2 2 OMU n 
2 3 OMC n 
2 4 DA  n 
2 5 DT  n 
2 6 DC  n 
2 7 DT  n 
2 8 OMC n 
2 9 OMC 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 
DA  'DNA linking' y "2'-DEOXYADENOSINE-5'-MONOPHOSPHATE"   ? 'C10 H14 N5 O6 P' 331.222 
DC  'DNA linking' y "2'-DEOXYCYTIDINE-5'-MONOPHOSPHATE"    ? 'C9 H14 N3 O7 P'  307.197 
DT  'DNA linking' y "THYMIDINE-5'-MONOPHOSPHATE"           ? 'C10 H15 N2 O8 P' 322.208 
G   'RNA linking' y "GUANOSINE-5'-MONOPHOSPHATE"           ? 'C10 H14 N5 O8 P' 363.221 
OMC 'RNA linking' n "O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE" ? 'C10 H16 N3 O8 P' 337.223 
OMG 'RNA linking' n "O2'-METHYLGUANOSINE-5'-MONOPHOSPHATE" ? 'C11 H16 N5 O8 P' 377.247 
OMU 'RNA linking' n 
;O2'-METHYLURIDINE 5'-MONOPHOSPHATE
;
? 'C10 H15 N2 O9 P' 338.208 
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 A   5 5  5  A   A   A . n 
A 1 6 U   6 6  6  U   U   A . n 
A 1 7 G   7 7  7  G   G   A . n 
A 1 8 A   8 8  8  A   A   A . n 
A 1 9 C   9 9  9  C   C   A . n 
B 2 1 OMG 1 10 10 OMG OMG B . n 
B 2 2 OMU 2 11 11 OMU OMU B . n 
B 2 3 OMC 3 12 12 OMC OMC B . n 
B 2 4 DA  4 13 13 DA  A   B . n 
B 2 5 DT  5 14 14 DT  T   B . n 
B 2 6 DC  6 15 15 DC  C   B . n 
B 2 7 DT  7 16 16 DT  T   B . n 
B 2 8 OMC 8 17 17 OMC OMC B . n 
B 2 9 OMC 9 18 18 OMC OMC B . n 
# 
loop_
_software.name 
_software.classification 
_software.version 
_software.citation_id 
_software.pdbx_ordinal 
X-PLOR 'model building' 3.1 ? 1 
X-PLOR refinement       3.1 ? 2 
X-PLOR phasing          3.1 ? 3 
# 
_cell.entry_id           1NAO 
_cell.length_a           1.000 
_cell.length_b           1.000 
_cell.length_c           1.000 
_cell.angle_alpha        90.00 
_cell.angle_beta         90.00 
_cell.angle_gamma        90.00 
_cell.Z_PDB              1 
_cell.pdbx_unique_axis   ? 
# 
_symmetry.entry_id                         1NAO 
_symmetry.space_group_name_H-M             'P 1' 
_symmetry.pdbx_full_space_group_name_H-M   ? 
_symmetry.cell_setting                     ? 
_symmetry.Int_Tables_number                1 
# 
_exptl.entry_id          1NAO 
_exptl.method            'SOLUTION NMR' 
_exptl.crystals_number   ? 
# 
_database_PDB_matrix.entry_id          1NAO 
_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                  1NAO 
_struct.title                     
;SOLUTION STRUCTURE OF AN RNA 2'-O-METHYLATED RNA DUPLEX CONTAINING AN RNA/DNA HYBRID SEGMENT AT THE CENTER, NMR, MINIMIZED AVERAGE STRUCTURE
;
_struct.pdbx_model_details        ? 
_struct.pdbx_CASP_flag            ? 
_struct.pdbx_model_type_details   ? 
# 
_struct_keywords.entry_id        1NAO 
_struct_keywords.pdbx_keywords   'DNA-RNA HYBRID' 
_struct_keywords.text            'DNA/RNA DUPLEX, DNA-RNA HYBRID' 
# 
loop_
_struct_asym.id 
_struct_asym.pdbx_blank_PDB_chainid_flag 
_struct_asym.pdbx_modified 
_struct_asym.entity_id 
_struct_asym.details 
A N N 1 ? 
B N N 2 ? 
# 
loop_
_struct_ref.id 
_struct_ref.entity_id 
_struct_ref.db_name 
_struct_ref.db_code 
_struct_ref.pdbx_db_accession 
_struct_ref.pdbx_align_begin 
_struct_ref.pdbx_seq_one_letter_code 
_struct_ref.pdbx_db_isoform 
1 1 PDB 1NAO 1NAO ? ? ? 
2 2 PDB 1NAO 1NAO ? ? ? 
# 
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 1NAO A 1 ? 9 ? 1NAO 1  ? 9  ? 1  9  
2 2 1NAO B 1 ? 9 ? 1NAO 10 ? 18 ? 10 18 
# 
_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 
# 
_pdbx_struct_oper_list.id                   1 
_pdbx_struct_oper_list.type                 'identity operation' 
_pdbx_struct_oper_list.name                 1_555 
_pdbx_struct_oper_list.symmetry_operation   x,y,z 
_pdbx_struct_oper_list.matrix[1][1]         1.0000000000 
_pdbx_struct_oper_list.matrix[1][2]         0.0000000000 
_pdbx_struct_oper_list.matrix[1][3]         0.0000000000 
_pdbx_struct_oper_list.vector[1]            0.0000000000 
_pdbx_struct_oper_list.matrix[2][1]         0.0000000000 
_pdbx_struct_oper_list.matrix[2][2]         1.0000000000 
_pdbx_struct_oper_list.matrix[2][3]         0.0000000000 
_pdbx_struct_oper_list.vector[2]            0.0000000000 
_pdbx_struct_oper_list.matrix[3][1]         0.0000000000 
_pdbx_struct_oper_list.matrix[3][2]         0.0000000000 
_pdbx_struct_oper_list.matrix[3][3]         1.0000000000 
_pdbx_struct_oper_list.vector[3]            0.0000000000 
# 
_struct_biol.id        1 
_struct_biol.details   ? 
# 
loop_
_struct_conn.id 
_struct_conn.conn_type_id 
_struct_conn.pdbx_leaving_atom_flag 
_struct_conn.pdbx_PDB_id 
_struct_conn.ptnr1_label_asym_id 
_struct_conn.ptnr1_label_comp_id 
_struct_conn.ptnr1_label_seq_id 
_struct_conn.ptnr1_label_atom_id 
_struct_conn.pdbx_ptnr1_label_alt_id 
_struct_conn.pdbx_ptnr1_PDB_ins_code 
_struct_conn.pdbx_ptnr1_standard_comp_id 
_struct_conn.ptnr1_symmetry 
_struct_conn.ptnr2_label_asym_id 
_struct_conn.ptnr2_label_comp_id 
_struct_conn.ptnr2_label_seq_id 
_struct_conn.ptnr2_label_atom_id 
_struct_conn.pdbx_ptnr2_label_alt_id 
_struct_conn.pdbx_ptnr2_PDB_ins_code 
_struct_conn.ptnr1_auth_asym_id 
_struct_conn.ptnr1_auth_comp_id 
_struct_conn.ptnr1_auth_seq_id 
_struct_conn.ptnr2_auth_asym_id 
_struct_conn.ptnr2_auth_comp_id 
_struct_conn.ptnr2_auth_seq_id 
_struct_conn.ptnr2_symmetry 
_struct_conn.pdbx_ptnr3_label_atom_id 
_struct_conn.pdbx_ptnr3_label_seq_id 
_struct_conn.pdbx_ptnr3_label_comp_id 
_struct_conn.pdbx_ptnr3_label_asym_id 
_struct_conn.pdbx_ptnr3_label_alt_id 
_struct_conn.pdbx_ptnr3_PDB_ins_code 
_struct_conn.details 
_struct_conn.pdbx_dist_value 
_struct_conn.pdbx_value_order 
_struct_conn.pdbx_role 
covale1  covale both ? B OMG 1 "O3'" ? ? ? 1_555 B OMU 2 P  ? ? B OMG 10 B OMU 11 1_555 ? ? ? ? ? ? ?            1.618 ? ? 
covale2  covale both ? B OMU 2 "O3'" ? ? ? 1_555 B OMC 3 P  ? ? B OMU 11 B OMC 12 1_555 ? ? ? ? ? ? ?            1.609 ? ? 
covale3  covale both ? B OMC 3 "O3'" ? ? ? 1_555 B DA  4 P  ? ? B OMC 12 B DA  13 1_555 ? ? ? ? ? ? ?            1.617 ? ? 
covale4  covale both ? B DT  7 "O3'" ? ? ? 1_555 B OMC 8 P  ? ? B DT  16 B OMC 17 1_555 ? ? ? ? ? ? ?            1.621 ? ? 
covale5  covale both ? B OMC 8 "O3'" ? ? ? 1_555 B OMC 9 P  ? ? B OMC 17 B OMC 18 1_555 ? ? ? ? ? ? ?            1.615 ? ? 
hydrog1  hydrog ?    ? A G   1 N1    ? ? ? 1_555 B OMC 9 N3 ? ? A G   1  B OMC 18 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog2  hydrog ?    ? A G   1 N2    ? ? ? 1_555 B OMC 9 O2 ? ? A G   1  B OMC 18 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog3  hydrog ?    ? A G   1 O6    ? ? ? 1_555 B OMC 9 N4 ? ? A G   1  B OMC 18 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog4  hydrog ?    ? A G   2 N1    ? ? ? 1_555 B OMC 8 N3 ? ? A G   2  B OMC 17 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog5  hydrog ?    ? A G   2 N2    ? ? ? 1_555 B OMC 8 O2 ? ? A G   2  B OMC 17 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog6  hydrog ?    ? A G   2 O6    ? ? ? 1_555 B OMC 8 N4 ? ? A G   2  B OMC 17 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog7  hydrog ?    ? A A   3 N1    ? ? ? 1_555 B DT  7 N3 ? ? A A   3  B DT  16 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog8  hydrog ?    ? A A   3 N6    ? ? ? 1_555 B DT  7 O4 ? ? A A   3  B DT  16 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog9  hydrog ?    ? A G   4 N1    ? ? ? 1_555 B DC  6 N3 ? ? A G   4  B DC  15 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog10 hydrog ?    ? A G   4 N2    ? ? ? 1_555 B DC  6 O2 ? ? A G   4  B DC  15 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog11 hydrog ?    ? A G   4 O6    ? ? ? 1_555 B DC  6 N4 ? ? A G   4  B DC  15 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog12 hydrog ?    ? A A   5 N1    ? ? ? 1_555 B DT  5 N3 ? ? A A   5  B DT  14 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog13 hydrog ?    ? A A   5 N6    ? ? ? 1_555 B DT  5 O4 ? ? A A   5  B DT  14 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog14 hydrog ?    ? A U   6 N3    ? ? ? 1_555 B DA  4 N1 ? ? A U   6  B DA  13 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog15 hydrog ?    ? A U   6 O4    ? ? ? 1_555 B DA  4 N6 ? ? A U   6  B DA  13 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog16 hydrog ?    ? A G   7 N1    ? ? ? 1_555 B OMC 3 N3 ? ? A G   7  B OMC 12 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog17 hydrog ?    ? A G   7 N2    ? ? ? 1_555 B OMC 3 O2 ? ? A G   7  B OMC 12 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog18 hydrog ?    ? A G   7 O6    ? ? ? 1_555 B OMC 3 N4 ? ? A G   7  B OMC 12 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog19 hydrog ?    ? A A   8 N1    ? ? ? 1_555 B OMU 2 N3 ? ? A A   8  B OMU 11 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog20 hydrog ?    ? A A   8 N6    ? ? ? 1_555 B OMU 2 O4 ? ? A A   8  B OMU 11 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog21 hydrog ?    ? A C   9 N3    ? ? ? 1_555 B OMG 1 N1 ? ? A C   9  B OMG 10 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog22 hydrog ?    ? A C   9 N4    ? ? ? 1_555 B OMG 1 O6 ? ? A C   9  B OMG 10 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
hydrog23 hydrog ?    ? A C   9 O2    ? ? ? 1_555 B OMG 1 N2 ? ? A C   9  B OMG 10 1_555 ? ? ? ? ? ? WATSON-CRICK ?     ? ? 
# 
loop_
_struct_conn_type.id 
_struct_conn_type.criteria 
_struct_conn_type.reference 
covale ? ? 
hydrog ? ? 
# 
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  1 "C3'" A G  1  ? ? "C2'" A G  1  ? ? "C1'" A G  1  ? ? 106.67 101.50 5.17  0.80 N 
2  1 N7    A G  1  ? ? C8    A G  1  ? ? N9    A G  1  ? ? 117.47 113.10 4.37  0.50 N 
3  1 C8    A G  1  ? ? N9    A G  1  ? ? C4    A G  1  ? ? 103.93 106.40 -2.47 0.40 N 
4  1 N7    A G  2  ? ? C8    A G  2  ? ? N9    A G  2  ? ? 117.66 113.10 4.56  0.50 N 
5  1 N7    A A  3  ? ? C8    A A  3  ? ? N9    A A  3  ? ? 117.62 113.80 3.82  0.50 N 
6  1 N7    A G  4  ? ? C8    A G  4  ? ? N9    A G  4  ? ? 117.62 113.10 4.52  0.50 N 
7  1 C8    A G  4  ? ? N9    A G  4  ? ? C4    A G  4  ? ? 103.81 106.40 -2.59 0.40 N 
8  1 N7    A A  5  ? ? C8    A A  5  ? ? N9    A A  5  ? ? 118.05 113.80 4.25  0.50 N 
9  1 "C3'" A U  6  ? ? "C2'" A U  6  ? ? "C1'" A U  6  ? ? 106.78 101.50 5.28  0.80 N 
10 1 "O4'" A U  6  ? ? "C1'" A U  6  ? ? N1    A U  6  ? ? 113.43 108.50 4.93  0.70 N 
11 1 "C3'" A G  7  ? ? "C2'" A G  7  ? ? "C1'" A G  7  ? ? 106.44 101.50 4.94  0.80 N 
12 1 N7    A G  7  ? ? C8    A G  7  ? ? N9    A G  7  ? ? 117.53 113.10 4.43  0.50 N 
13 1 N7    A A  8  ? ? C8    A A  8  ? ? N9    A A  8  ? ? 117.53 113.80 3.73  0.50 N 
14 1 "O4'" B DA 13 ? ? "C1'" B DA 13 ? ? N9    B DA 13 ? ? 110.81 108.30 2.51  0.30 N 
15 1 N7    B DA 13 ? ? C8    B DA 13 ? ? N9    B DA 13 ? ? 117.85 113.80 4.05  0.50 N 
16 1 "O4'" B DT 14 ? ? "C1'" B DT 14 ? ? N1    B DT 14 ? ? 111.61 108.30 3.31  0.30 N 
17 1 "O4'" B DC 15 ? ? "C1'" B DC 15 ? ? N1    B DC 15 ? ? 111.70 108.30 3.40  0.30 N 
18 1 "O4'" B DT 16 ? ? "C1'" B DT 16 ? ? N1    B DT 16 ? ? 111.46 108.30 3.16  0.30 N 
# 
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 B OMG 1 B OMG 10 ? G "O2'-METHYLGUANOSINE-5'-MONOPHOSPHATE" 
2 B OMU 2 B OMU 11 ? U 
;O2'-METHYLURIDINE 5'-MONOPHOSPHATE
;
3 B OMC 3 B OMC 12 ? C "O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE" 
4 B OMC 8 B OMC 17 ? C "O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE" 
5 B OMC 9 B OMC 18 ? C "O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE" 
# 
_pdbx_nmr_ensemble.entry_id                                      1NAO 
_pdbx_nmr_ensemble.conformers_calculated_total_number            10 
_pdbx_nmr_ensemble.conformers_submitted_total_number             1 
_pdbx_nmr_ensemble.conformer_selection_criteria                  AVERAGED 
_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_exptl_sample_conditions.conditions_id       1 
_pdbx_nmr_exptl_sample_conditions.temperature         313 
_pdbx_nmr_exptl_sample_conditions.pressure            ? 
_pdbx_nmr_exptl_sample_conditions.pH                  7.0 
_pdbx_nmr_exptl_sample_conditions.ionic_strength      ? 
_pdbx_nmr_exptl_sample_conditions.pressure_units      . 
_pdbx_nmr_exptl_sample_conditions.temperature_units   K 
# 
_pdbx_nmr_details.entry_id   1NAO 
_pdbx_nmr_details.text       '00MM NACL, 50MM NA PHOSPHATE, 3MM EDTA' 
# 
_pdbx_nmr_refine.entry_id           1NAO 
_pdbx_nmr_refine.method             'simulated annealing' 
_pdbx_nmr_refine.details            ? 
_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 
refinement           'X-PLOR 3.1F' 3.1F BRUNGER 1 
'structure solution' X-PLOR        ?    ?       2 
# 
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  
DA  OP3    O N N 73  
DA  P      P N N 74  
DA  OP1    O N N 75  
DA  OP2    O N N 76  
DA  "O5'"  O N N 77  
DA  "C5'"  C N N 78  
DA  "C4'"  C N R 79  
DA  "O4'"  O N N 80  
DA  "C3'"  C N S 81  
DA  "O3'"  O N N 82  
DA  "C2'"  C N N 83  
DA  "C1'"  C N R 84  
DA  N9     N Y N 85  
DA  C8     C Y N 86  
DA  N7     N Y N 87  
DA  C5     C Y N 88  
DA  C6     C Y N 89  
DA  N6     N N N 90  
DA  N1     N Y N 91  
DA  C2     C Y N 92  
DA  N3     N Y N 93  
DA  C4     C Y N 94  
DA  HOP3   H N N 95  
DA  HOP2   H N N 96  
DA  "H5'"  H N N 97  
DA  "H5''" H N N 98  
DA  "H4'"  H N N 99  
DA  "H3'"  H N N 100 
DA  "HO3'" H N N 101 
DA  "H2'"  H N N 102 
DA  "H2''" H N N 103 
DA  "H1'"  H N N 104 
DA  H8     H N N 105 
DA  H61    H N N 106 
DA  H62    H N N 107 
DA  H2     H N N 108 
DC  OP3    O N N 109 
DC  P      P N N 110 
DC  OP1    O N N 111 
DC  OP2    O N N 112 
DC  "O5'"  O N N 113 
DC  "C5'"  C N N 114 
DC  "C4'"  C N R 115 
DC  "O4'"  O N N 116 
DC  "C3'"  C N S 117 
DC  "O3'"  O N N 118 
DC  "C2'"  C N N 119 
DC  "C1'"  C N R 120 
DC  N1     N N N 121 
DC  C2     C N N 122 
DC  O2     O N N 123 
DC  N3     N N N 124 
DC  C4     C N N 125 
DC  N4     N N N 126 
DC  C5     C N N 127 
DC  C6     C N N 128 
DC  HOP3   H N N 129 
DC  HOP2   H N N 130 
DC  "H5'"  H N N 131 
DC  "H5''" H N N 132 
DC  "H4'"  H N N 133 
DC  "H3'"  H N N 134 
DC  "HO3'" H N N 135 
DC  "H2'"  H N N 136 
DC  "H2''" H N N 137 
DC  "H1'"  H N N 138 
DC  H41    H N N 139 
DC  H42    H N N 140 
DC  H5     H N N 141 
DC  H6     H N N 142 
DT  OP3    O N N 143 
DT  P      P N N 144 
DT  OP1    O N N 145 
DT  OP2    O N N 146 
DT  "O5'"  O N N 147 
DT  "C5'"  C N N 148 
DT  "C4'"  C N R 149 
DT  "O4'"  O N N 150 
DT  "C3'"  C N S 151 
DT  "O3'"  O N N 152 
DT  "C2'"  C N N 153 
DT  "C1'"  C N R 154 
DT  N1     N N N 155 
DT  C2     C N N 156 
DT  O2     O N N 157 
DT  N3     N N N 158 
DT  C4     C N N 159 
DT  O4     O N N 160 
DT  C5     C N N 161 
DT  C7     C N N 162 
DT  C6     C N N 163 
DT  HOP3   H N N 164 
DT  HOP2   H N N 165 
DT  "H5'"  H N N 166 
DT  "H5''" H N N 167 
DT  "H4'"  H N N 168 
DT  "H3'"  H N N 169 
DT  "HO3'" H N N 170 
DT  "H2'"  H N N 171 
DT  "H2''" H N N 172 
DT  "H1'"  H N N 173 
DT  H3     H N N 174 
DT  H71    H N N 175 
DT  H72    H N N 176 
DT  H73    H N N 177 
DT  H6     H N N 178 
G   OP3    O N N 179 
G   P      P N N 180 
G   OP1    O N N 181 
G   OP2    O N N 182 
G   "O5'"  O N N 183 
G   "C5'"  C N N 184 
G   "C4'"  C N R 185 
G   "O4'"  O N N 186 
G   "C3'"  C N S 187 
G   "O3'"  O N N 188 
G   "C2'"  C N R 189 
G   "O2'"  O N N 190 
G   "C1'"  C N R 191 
G   N9     N Y N 192 
G   C8     C Y N 193 
G   N7     N Y N 194 
G   C5     C Y N 195 
G   C6     C N N 196 
G   O6     O N N 197 
G   N1     N N N 198 
G   C2     C N N 199 
G   N2     N N N 200 
G   N3     N N N 201 
G   C4     C Y N 202 
G   HOP3   H N N 203 
G   HOP2   H N N 204 
G   "H5'"  H N N 205 
G   "H5''" H N N 206 
G   "H4'"  H N N 207 
G   "H3'"  H N N 208 
G   "HO3'" H N N 209 
G   "H2'"  H N N 210 
G   "HO2'" H N N 211 
G   "H1'"  H N N 212 
G   H8     H N N 213 
G   H1     H N N 214 
G   H21    H N N 215 
G   H22    H N N 216 
OMC N1     N N N 217 
OMC C2     C N N 218 
OMC N3     N N N 219 
OMC C4     C N N 220 
OMC C5     C N N 221 
OMC C6     C N N 222 
OMC O2     O N N 223 
OMC N4     N N N 224 
OMC "C1'"  C N R 225 
OMC "C2'"  C N R 226 
OMC "O2'"  O N N 227 
OMC CM2    C N N 228 
OMC "C3'"  C N R 229 
OMC "C4'"  C N R 230 
OMC "O4'"  O N N 231 
OMC "O3'"  O N N 232 
OMC "C5'"  C N N 233 
OMC "O5'"  O N N 234 
OMC P      P N N 235 
OMC OP1    O N N 236 
OMC OP2    O N N 237 
OMC OP3    O N N 238 
OMC H5     H N N 239 
OMC H6     H N N 240 
OMC HN41   H N N 241 
OMC HN42   H N N 242 
OMC "H1'"  H N N 243 
OMC "H2'"  H N N 244 
OMC HM21   H N N 245 
OMC HM22   H N N 246 
OMC HM23   H N N 247 
OMC "H3'"  H N N 248 
OMC "H4'"  H N N 249 
OMC "HO3'" H N N 250 
OMC "H5'"  H N N 251 
OMC "H5''" H N N 252 
OMC HOP2   H N N 253 
OMC HOP3   H N N 254 
OMG P      P N N 255 
OMG OP1    O N N 256 
OMG OP2    O N N 257 
OMG OP3    O N N 258 
OMG "O5'"  O N N 259 
OMG "C5'"  C N N 260 
OMG "C4'"  C N R 261 
OMG "O4'"  O N N 262 
OMG "C3'"  C N R 263 
OMG "O3'"  O N N 264 
OMG "C2'"  C N R 265 
OMG "O2'"  O N N 266 
OMG CM2    C N N 267 
OMG "C1'"  C N R 268 
OMG N9     N Y N 269 
OMG C8     C Y N 270 
OMG N7     N Y N 271 
OMG C5     C Y N 272 
OMG C6     C N N 273 
OMG O6     O N N 274 
OMG N1     N N N 275 
OMG C2     C N N 276 
OMG N2     N N N 277 
OMG N3     N N N 278 
OMG C4     C Y N 279 
OMG HOP2   H N N 280 
OMG HOP3   H N N 281 
OMG "H5'"  H N N 282 
OMG "H5''" H N N 283 
OMG "H4'"  H N N 284 
OMG "H3'"  H N N 285 
OMG "HO3'" H N N 286 
OMG "H2'"  H N N 287 
OMG HM21   H N N 288 
OMG HM22   H N N 289 
OMG HM23   H N N 290 
OMG "H1'"  H N N 291 
OMG H8     H N N 292 
OMG HN1    H N N 293 
OMG HN21   H N N 294 
OMG HN22   H N N 295 
OMU N1     N N N 296 
OMU C2     C N N 297 
OMU N3     N N N 298 
OMU C4     C N N 299 
OMU C5     C N N 300 
OMU C6     C N N 301 
OMU O2     O N N 302 
OMU O4     O N N 303 
OMU "C1'"  C N R 304 
OMU "C2'"  C N R 305 
OMU "O2'"  O N N 306 
OMU CM2    C N N 307 
OMU "C3'"  C N R 308 
OMU "C4'"  C N R 309 
OMU "O3'"  O N N 310 
OMU "O4'"  O N N 311 
OMU "C5'"  C N N 312 
OMU "O5'"  O N N 313 
OMU P      P N N 314 
OMU OP1    O N N 315 
OMU OP2    O N N 316 
OMU OP3    O N N 317 
OMU HN3    H N N 318 
OMU H5     H N N 319 
OMU H6     H N N 320 
OMU "H1'"  H N N 321 
OMU "H2'"  H N N 322 
OMU HM21   H N N 323 
OMU HM22   H N N 324 
OMU HM23   H N N 325 
OMU "H3'"  H N N 326 
OMU "H4'"  H N N 327 
OMU "HO3'" H N N 328 
OMU "H5'"  H N N 329 
OMU "H5''" H N N 330 
OMU HOP2   H N N 331 
OMU HOP3   H N N 332 
U   OP3    O N N 333 
U   P      P N N 334 
U   OP1    O N N 335 
U   OP2    O N N 336 
U   "O5'"  O N N 337 
U   "C5'"  C N N 338 
U   "C4'"  C N R 339 
U   "O4'"  O N N 340 
U   "C3'"  C N S 341 
U   "O3'"  O N N 342 
U   "C2'"  C N R 343 
U   "O2'"  O N N 344 
U   "C1'"  C N R 345 
U   N1     N N N 346 
U   C2     C N N 347 
U   O2     O N N 348 
U   N3     N N N 349 
U   C4     C N N 350 
U   O4     O N N 351 
U   C5     C N N 352 
U   C6     C N N 353 
U   HOP3   H N N 354 
U   HOP2   H N N 355 
U   "H5'"  H N N 356 
U   "H5''" H N N 357 
U   "H4'"  H N N 358 
U   "H3'"  H N N 359 
U   "HO3'" H N N 360 
U   "H2'"  H N N 361 
U   "HO2'" H N N 362 
U   "H1'"  H N N 363 
U   H3     H N N 364 
U   H5     H N N 365 
U   H6     H N N 366 
# 
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  
DA  OP3   P      sing N N 76  
DA  OP3   HOP3   sing N N 77  
DA  P     OP1    doub N N 78  
DA  P     OP2    sing N N 79  
DA  P     "O5'"  sing N N 80  
DA  OP2   HOP2   sing N N 81  
DA  "O5'" "C5'"  sing N N 82  
DA  "C5'" "C4'"  sing N N 83  
DA  "C5'" "H5'"  sing N N 84  
DA  "C5'" "H5''" sing N N 85  
DA  "C4'" "O4'"  sing N N 86  
DA  "C4'" "C3'"  sing N N 87  
DA  "C4'" "H4'"  sing N N 88  
DA  "O4'" "C1'"  sing N N 89  
DA  "C3'" "O3'"  sing N N 90  
DA  "C3'" "C2'"  sing N N 91  
DA  "C3'" "H3'"  sing N N 92  
DA  "O3'" "HO3'" sing N N 93  
DA  "C2'" "C1'"  sing N N 94  
DA  "C2'" "H2'"  sing N N 95  
DA  "C2'" "H2''" sing N N 96  
DA  "C1'" N9     sing N N 97  
DA  "C1'" "H1'"  sing N N 98  
DA  N9    C8     sing Y N 99  
DA  N9    C4     sing Y N 100 
DA  C8    N7     doub Y N 101 
DA  C8    H8     sing N N 102 
DA  N7    C5     sing Y N 103 
DA  C5    C6     sing Y N 104 
DA  C5    C4     doub Y N 105 
DA  C6    N6     sing N N 106 
DA  C6    N1     doub Y N 107 
DA  N6    H61    sing N N 108 
DA  N6    H62    sing N N 109 
DA  N1    C2     sing Y N 110 
DA  C2    N3     doub Y N 111 
DA  C2    H2     sing N N 112 
DA  N3    C4     sing Y N 113 
DC  OP3   P      sing N N 114 
DC  OP3   HOP3   sing N N 115 
DC  P     OP1    doub N N 116 
DC  P     OP2    sing N N 117 
DC  P     "O5'"  sing N N 118 
DC  OP2   HOP2   sing N N 119 
DC  "O5'" "C5'"  sing N N 120 
DC  "C5'" "C4'"  sing N N 121 
DC  "C5'" "H5'"  sing N N 122 
DC  "C5'" "H5''" sing N N 123 
DC  "C4'" "O4'"  sing N N 124 
DC  "C4'" "C3'"  sing N N 125 
DC  "C4'" "H4'"  sing N N 126 
DC  "O4'" "C1'"  sing N N 127 
DC  "C3'" "O3'"  sing N N 128 
DC  "C3'" "C2'"  sing N N 129 
DC  "C3'" "H3'"  sing N N 130 
DC  "O3'" "HO3'" sing N N 131 
DC  "C2'" "C1'"  sing N N 132 
DC  "C2'" "H2'"  sing N N 133 
DC  "C2'" "H2''" sing N N 134 
DC  "C1'" N1     sing N N 135 
DC  "C1'" "H1'"  sing N N 136 
DC  N1    C2     sing N N 137 
DC  N1    C6     sing N N 138 
DC  C2    O2     doub N N 139 
DC  C2    N3     sing N N 140 
DC  N3    C4     doub N N 141 
DC  C4    N4     sing N N 142 
DC  C4    C5     sing N N 143 
DC  N4    H41    sing N N 144 
DC  N4    H42    sing N N 145 
DC  C5    C6     doub N N 146 
DC  C5    H5     sing N N 147 
DC  C6    H6     sing N N 148 
DT  OP3   P      sing N N 149 
DT  OP3   HOP3   sing N N 150 
DT  P     OP1    doub N N 151 
DT  P     OP2    sing N N 152 
DT  P     "O5'"  sing N N 153 
DT  OP2   HOP2   sing N N 154 
DT  "O5'" "C5'"  sing N N 155 
DT  "C5'" "C4'"  sing N N 156 
DT  "C5'" "H5'"  sing N N 157 
DT  "C5'" "H5''" sing N N 158 
DT  "C4'" "O4'"  sing N N 159 
DT  "C4'" "C3'"  sing N N 160 
DT  "C4'" "H4'"  sing N N 161 
DT  "O4'" "C1'"  sing N N 162 
DT  "C3'" "O3'"  sing N N 163 
DT  "C3'" "C2'"  sing N N 164 
DT  "C3'" "H3'"  sing N N 165 
DT  "O3'" "HO3'" sing N N 166 
DT  "C2'" "C1'"  sing N N 167 
DT  "C2'" "H2'"  sing N N 168 
DT  "C2'" "H2''" sing N N 169 
DT  "C1'" N1     sing N N 170 
DT  "C1'" "H1'"  sing N N 171 
DT  N1    C2     sing N N 172 
DT  N1    C6     sing N N 173 
DT  C2    O2     doub N N 174 
DT  C2    N3     sing N N 175 
DT  N3    C4     sing N N 176 
DT  N3    H3     sing N N 177 
DT  C4    O4     doub N N 178 
DT  C4    C5     sing N N 179 
DT  C5    C7     sing N N 180 
DT  C5    C6     doub N N 181 
DT  C7    H71    sing N N 182 
DT  C7    H72    sing N N 183 
DT  C7    H73    sing N N 184 
DT  C6    H6     sing N N 185 
G   OP3   P      sing N N 186 
G   OP3   HOP3   sing N N 187 
G   P     OP1    doub N N 188 
G   P     OP2    sing N N 189 
G   P     "O5'"  sing N N 190 
G   OP2   HOP2   sing N N 191 
G   "O5'" "C5'"  sing N N 192 
G   "C5'" "C4'"  sing N N 193 
G   "C5'" "H5'"  sing N N 194 
G   "C5'" "H5''" sing N N 195 
G   "C4'" "O4'"  sing N N 196 
G   "C4'" "C3'"  sing N N 197 
G   "C4'" "H4'"  sing N N 198 
G   "O4'" "C1'"  sing N N 199 
G   "C3'" "O3'"  sing N N 200 
G   "C3'" "C2'"  sing N N 201 
G   "C3'" "H3'"  sing N N 202 
G   "O3'" "HO3'" sing N N 203 
G   "C2'" "O2'"  sing N N 204 
G   "C2'" "C1'"  sing N N 205 
G   "C2'" "H2'"  sing N N 206 
G   "O2'" "HO2'" sing N N 207 
G   "C1'" N9     sing N N 208 
G   "C1'" "H1'"  sing N N 209 
G   N9    C8     sing Y N 210 
G   N9    C4     sing Y N 211 
G   C8    N7     doub Y N 212 
G   C8    H8     sing N N 213 
G   N7    C5     sing Y N 214 
G   C5    C6     sing N N 215 
G   C5    C4     doub Y N 216 
G   C6    O6     doub N N 217 
G   C6    N1     sing N N 218 
G   N1    C2     sing N N 219 
G   N1    H1     sing N N 220 
G   C2    N2     sing N N 221 
G   C2    N3     doub N N 222 
G   N2    H21    sing N N 223 
G   N2    H22    sing N N 224 
G   N3    C4     sing N N 225 
OMC N1    C2     sing N N 226 
OMC N1    C6     sing N N 227 
OMC N1    "C1'"  sing N N 228 
OMC C2    N3     sing N N 229 
OMC C2    O2     doub N N 230 
OMC N3    C4     doub N N 231 
OMC C4    C5     sing N N 232 
OMC C4    N4     sing N N 233 
OMC C5    C6     doub N N 234 
OMC C5    H5     sing N N 235 
OMC C6    H6     sing N N 236 
OMC N4    HN41   sing N N 237 
OMC N4    HN42   sing N N 238 
OMC "C1'" "C2'"  sing N N 239 
OMC "C1'" "O4'"  sing N N 240 
OMC "C1'" "H1'"  sing N N 241 
OMC "C2'" "O2'"  sing N N 242 
OMC "C2'" "C3'"  sing N N 243 
OMC "C2'" "H2'"  sing N N 244 
OMC "O2'" CM2    sing N N 245 
OMC CM2   HM21   sing N N 246 
OMC CM2   HM22   sing N N 247 
OMC CM2   HM23   sing N N 248 
OMC "C3'" "C4'"  sing N N 249 
OMC "C3'" "O3'"  sing N N 250 
OMC "C3'" "H3'"  sing N N 251 
OMC "C4'" "O4'"  sing N N 252 
OMC "C4'" "C5'"  sing N N 253 
OMC "C4'" "H4'"  sing N N 254 
OMC "O3'" "HO3'" sing N N 255 
OMC "C5'" "O5'"  sing N N 256 
OMC "C5'" "H5'"  sing N N 257 
OMC "C5'" "H5''" sing N N 258 
OMC "O5'" P      sing N N 259 
OMC P     OP1    doub N N 260 
OMC P     OP2    sing N N 261 
OMC P     OP3    sing N N 262 
OMC OP2   HOP2   sing N N 263 
OMC OP3   HOP3   sing N N 264 
OMG P     OP1    doub N N 265 
OMG P     OP2    sing N N 266 
OMG P     OP3    sing N N 267 
OMG P     "O5'"  sing N N 268 
OMG OP2   HOP2   sing N N 269 
OMG OP3   HOP3   sing N N 270 
OMG "O5'" "C5'"  sing N N 271 
OMG "C5'" "C4'"  sing N N 272 
OMG "C5'" "H5'"  sing N N 273 
OMG "C5'" "H5''" sing N N 274 
OMG "C4'" "O4'"  sing N N 275 
OMG "C4'" "C3'"  sing N N 276 
OMG "C4'" "H4'"  sing N N 277 
OMG "O4'" "C1'"  sing N N 278 
OMG "C3'" "O3'"  sing N N 279 
OMG "C3'" "C2'"  sing N N 280 
OMG "C3'" "H3'"  sing N N 281 
OMG "O3'" "HO3'" sing N N 282 
OMG "C2'" "O2'"  sing N N 283 
OMG "C2'" "C1'"  sing N N 284 
OMG "C2'" "H2'"  sing N N 285 
OMG "O2'" CM2    sing N N 286 
OMG CM2   HM21   sing N N 287 
OMG CM2   HM22   sing N N 288 
OMG CM2   HM23   sing N N 289 
OMG "C1'" N9     sing N N 290 
OMG "C1'" "H1'"  sing N N 291 
OMG N9    C8     sing Y N 292 
OMG N9    C4     sing Y N 293 
OMG C8    N7     doub Y N 294 
OMG C8    H8     sing N N 295 
OMG N7    C5     sing Y N 296 
OMG C5    C6     sing N N 297 
OMG C5    C4     doub Y N 298 
OMG C6    O6     doub N N 299 
OMG C6    N1     sing N N 300 
OMG N1    C2     sing N N 301 
OMG N1    HN1    sing N N 302 
OMG C2    N2     sing N N 303 
OMG C2    N3     doub N N 304 
OMG N2    HN21   sing N N 305 
OMG N2    HN22   sing N N 306 
OMG N3    C4     sing N N 307 
OMU N1    C2     sing N N 308 
OMU N1    C6     sing N N 309 
OMU N1    "C1'"  sing N N 310 
OMU C2    N3     sing N N 311 
OMU C2    O2     doub N N 312 
OMU N3    C4     sing N N 313 
OMU N3    HN3    sing N N 314 
OMU C4    C5     sing N N 315 
OMU C4    O4     doub N N 316 
OMU C5    C6     doub N N 317 
OMU C5    H5     sing N N 318 
OMU C6    H6     sing N N 319 
OMU "C1'" "C2'"  sing N N 320 
OMU "C1'" "O4'"  sing N N 321 
OMU "C1'" "H1'"  sing N N 322 
OMU "C2'" "O2'"  sing N N 323 
OMU "C2'" "C3'"  sing N N 324 
OMU "C2'" "H2'"  sing N N 325 
OMU "O2'" CM2    sing N N 326 
OMU CM2   HM21   sing N N 327 
OMU CM2   HM22   sing N N 328 
OMU CM2   HM23   sing N N 329 
OMU "C3'" "C4'"  sing N N 330 
OMU "C3'" "O3'"  sing N N 331 
OMU "C3'" "H3'"  sing N N 332 
OMU "C4'" "O4'"  sing N N 333 
OMU "C4'" "C5'"  sing N N 334 
OMU "C4'" "H4'"  sing N N 335 
OMU "O3'" "HO3'" sing N N 336 
OMU "C5'" "O5'"  sing N N 337 
OMU "C5'" "H5'"  sing N N 338 
OMU "C5'" "H5''" sing N N 339 
OMU "O5'" P      sing N N 340 
OMU P     OP1    doub N N 341 
OMU P     OP2    sing N N 342 
OMU P     OP3    sing N N 343 
OMU OP2   HOP2   sing N N 344 
OMU OP3   HOP3   sing N N 345 
U   OP3   P      sing N N 346 
U   OP3   HOP3   sing N N 347 
U   P     OP1    doub N N 348 
U   P     OP2    sing N N 349 
U   P     "O5'"  sing N N 350 
U   OP2   HOP2   sing N N 351 
U   "O5'" "C5'"  sing N N 352 
U   "C5'" "C4'"  sing N N 353 
U   "C5'" "H5'"  sing N N 354 
U   "C5'" "H5''" sing N N 355 
U   "C4'" "O4'"  sing N N 356 
U   "C4'" "C3'"  sing N N 357 
U   "C4'" "H4'"  sing N N 358 
U   "O4'" "C1'"  sing N N 359 
U   "C3'" "O3'"  sing N N 360 
U   "C3'" "C2'"  sing N N 361 
U   "C3'" "H3'"  sing N N 362 
U   "O3'" "HO3'" sing N N 363 
U   "C2'" "O2'"  sing N N 364 
U   "C2'" "C1'"  sing N N 365 
U   "C2'" "H2'"  sing N N 366 
U   "O2'" "HO2'" sing N N 367 
U   "C1'" N1     sing N N 368 
U   "C1'" "H1'"  sing N N 369 
U   N1    C2     sing N N 370 
U   N1    C6     sing N N 371 
U   C2    O2     doub N N 372 
U   C2    N3     sing N N 373 
U   N3    C4     sing N N 374 
U   N3    H3     sing N N 375 
U   C4    O4     doub N N 376 
U   C4    C5     sing N N 377 
U   C5    C6     doub N N 378 
U   C5    H5     sing N N 379 
U   C6    H6     sing N N 380 
# 
loop_
_ndb_struct_conf_na.entry_id 
_ndb_struct_conf_na.feature 
1NAO 'double helix'        
1NAO 'a-form double helix' 
# 
loop_
_ndb_struct_na_base_pair.model_number 
_ndb_struct_na_base_pair.i_label_asym_id 
_ndb_struct_na_base_pair.i_label_comp_id 
_ndb_struct_na_base_pair.i_label_seq_id 
_ndb_struct_na_base_pair.i_symmetry 
_ndb_struct_na_base_pair.j_label_asym_id 
_ndb_struct_na_base_pair.j_label_comp_id 
_ndb_struct_na_base_pair.j_label_seq_id 
_ndb_struct_na_base_pair.j_symmetry 
_ndb_struct_na_base_pair.shear 
_ndb_struct_na_base_pair.stretch 
_ndb_struct_na_base_pair.stagger 
_ndb_struct_na_base_pair.buckle 
_ndb_struct_na_base_pair.propeller 
_ndb_struct_na_base_pair.opening 
_ndb_struct_na_base_pair.pair_number 
_ndb_struct_na_base_pair.pair_name 
_ndb_struct_na_base_pair.i_auth_asym_id 
_ndb_struct_na_base_pair.i_auth_seq_id 
_ndb_struct_na_base_pair.i_PDB_ins_code 
_ndb_struct_na_base_pair.j_auth_asym_id 
_ndb_struct_na_base_pair.j_auth_seq_id 
_ndb_struct_na_base_pair.j_PDB_ins_code 
_ndb_struct_na_base_pair.hbond_type_28 
_ndb_struct_na_base_pair.hbond_type_12 
1 A G 1 1_555 B OMC 9 1_555 -0.633 -0.327 -0.094 -2.528 0.759   0.259   1 A_G1:OMC18_B A 1 ? B 18 ? 19 1 
1 A G 2 1_555 B OMC 8 1_555 -0.895 -0.376 0.036  -1.293 -12.662 2.598   2 A_G2:OMC17_B A 2 ? B 17 ? 19 1 
1 A A 3 1_555 B DT  7 1_555 -0.219 -0.212 -0.326 0.589  0.971   -3.118  3 A_A3:DT16_B  A 3 ? B 16 ? 20 1 
1 A G 4 1_555 B DC  6 1_555 -0.360 -0.267 0.149  2.800  -5.671  -0.586  4 A_G4:DC15_B  A 4 ? B 15 ? 19 1 
1 A A 5 1_555 B DT  5 1_555 0.057  -0.123 -0.170 -5.205 -5.529  -3.545  5 A_A5:DT14_B  A 5 ? B 14 ? 20 1 
1 A U 6 1_555 B DA  4 1_555 0.581  -0.276 -0.225 8.351  -6.664  -0.610  6 A_U6:DA13_B  A 6 ? B 13 ? 20 1 
1 A G 7 1_555 B OMC 3 1_555 -1.023 -0.395 -0.543 -6.473 -8.654  6.064   7 A_G7:OMC12_B A 7 ? B 12 ? 19 1 
1 A A 8 1_555 B OMU 2 1_555 1.480  -0.158 -0.061 2.847  -4.469  -14.621 8 A_A8:OMU11_B A 8 ? B 11 ? 20 1 
1 A C 9 1_555 B OMG 1 1_555 0.684  -0.140 -0.274 6.487  0.254   2.063   9 A_C9:OMG10_B A 9 ? B 10 ? 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 OMC 9 1_555 A G 2 1_555 B OMC 8 1_555 -1.260 -0.522 3.528 -5.407 -3.227  41.028 -0.356 1.141  3.687 -4.571  7.660  
41.487 1 AA_G1G2:OMC17OMC18_BB A 1 ? B 18 ? A 2 ? B 17 ? 
1 A G 2 1_555 B OMC 8 1_555 A A 3 1_555 B DT  7 1_555 -1.237 0.190  4.061 -2.496 -16.207 37.995 2.449  1.419  3.752 -23.597 3.634  
41.262 2 AA_G2A3:DT16OMC17_BB  A 2 ? B 17 ? A 3 ? B 16 ? 
1 A A 3 1_555 B DT  7 1_555 A G 4 1_555 B DC  6 1_555 0.470  0.080  4.092 0.615  9.606   28.877 -2.271 -0.740 3.925 18.620  -1.191 
30.406 3 AA_A3G4:DC15DT16_BB   A 3 ? B 16 ? A 4 ? B 15 ? 
1 A G 4 1_555 B DC  6 1_555 A A 5 1_555 B DT  5 1_555 -1.454 0.118  3.812 -3.769 23.815  36.588 -2.620 1.519  3.406 33.810  5.352  
43.590 4 AA_G4A5:DT14DC15_BB   A 4 ? B 15 ? A 5 ? B 14 ? 
1 A A 5 1_555 B DT  5 1_555 A U 6 1_555 B DA  4 1_555 0.753  -1.575 2.851 -1.179 -1.778  26.967 -2.969 -1.874 2.911 -3.806  2.523  
27.049 5 AA_A5U6:DA13DT14_BB   A 5 ? B 14 ? A 6 ? B 13 ? 
1 A U 6 1_555 B DA  4 1_555 A G 7 1_555 B OMC 3 1_555 0.815  -1.759 3.473 -2.073 20.254  30.293 -5.370 -1.568 1.906 34.320  3.512  
36.366 6 AA_U6G7:OMC12DA13_BB  A 6 ? B 13 ? A 7 ? B 12 ? 
1 A G 7 1_555 B OMC 3 1_555 A A 8 1_555 B OMU 2 1_555 -2.589 -0.567 3.018 -2.905 2.929   44.361 -1.002 3.164  3.132 3.869   3.838  
44.543 7 AA_G7A8:OMU11OMC12_BB A 7 ? B 12 ? A 8 ? B 11 ? 
1 A A 8 1_555 B OMU 2 1_555 A C 9 1_555 B OMG 1 1_555 2.319  -2.049 3.219 3.660  -3.693  28.126 -3.252 -3.808 3.717 -7.517  -7.450 
28.593 8 AA_A8C9:OMG10OMU11_BB A 8 ? B 11 ? A 9 ? B 10 ? 
# 
_pdbx_nmr_spectrometer.spectrometer_id   1 
_pdbx_nmr_spectrometer.model             AMX600 
_pdbx_nmr_spectrometer.manufacturer      Bruker 
_pdbx_nmr_spectrometer.field_strength    600 
_pdbx_nmr_spectrometer.type              ? 
# 
_atom_sites.entry_id                    1NAO 
_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 
N 
O 
P 
# 
loop_