data_2XEB
# 
_entry.id   2XEB 
# 
_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   2XEB         pdb_00002xeb 10.2210/pdb2xeb/pdb 
PDBE  EBI-43860    ?            ?                   
WWPDB D_1290043860 ?            ?                   
# 
loop_
_pdbx_audit_revision_history.ordinal 
_pdbx_audit_revision_history.data_content_type 
_pdbx_audit_revision_history.major_revision 
_pdbx_audit_revision_history.minor_revision 
_pdbx_audit_revision_history.revision_date 
1 'Structure model' 1 0 2010-05-26 
2 'Structure model' 1 1 2011-05-08 
3 'Structure model' 1 2 2011-07-13 
4 'Structure model' 1 3 2018-01-17 
5 'Structure model' 1 4 2024-05-15 
# 
_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 5 'Structure model' 'Data collection'           
5 5 'Structure model' 'Database references'       
6 5 'Structure model' Other                       
# 
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' citation              
2 5 'Structure model' chem_comp_atom        
3 5 'Structure model' chem_comp_bond        
4 5 'Structure model' database_2            
5 5 'Structure model' pdbx_database_status  
6 5 'Structure model' pdbx_nmr_spectrometer 
# 
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' '_citation.journal_id_ISSN'            
2 4 'Structure model' '_citation.page_last'                  
3 4 'Structure model' '_citation.pdbx_database_id_DOI'       
4 4 'Structure model' '_citation.title'                      
5 5 'Structure model' '_database_2.pdbx_DOI'                 
6 5 'Structure model' '_database_2.pdbx_database_accession'  
7 5 'Structure model' '_pdbx_database_status.status_code_mr' 
8 5 'Structure model' '_pdbx_nmr_spectrometer.model'         
# 
_pdbx_database_PDB_obs_spr.id               SPRSDE 
_pdbx_database_PDB_obs_spr.date             2010-05-26 
_pdbx_database_PDB_obs_spr.pdb_id           2XEB 
_pdbx_database_PDB_obs_spr.replace_pdb_id   2KR8 
_pdbx_database_PDB_obs_spr.details          ? 
# 
_pdbx_database_status.status_code                     REL 
_pdbx_database_status.entry_id                        2XEB 
_pdbx_database_status.deposit_site                    PDBE 
_pdbx_database_status.process_site                    PDBE 
_pdbx_database_status.SG_entry                        . 
_pdbx_database_status.recvd_initial_deposition_date   2010-05-12 
_pdbx_database_status.pdb_format_compatible           Y 
_pdbx_database_status.status_code_sf                  ? 
_pdbx_database_status.status_code_mr                  REL 
_pdbx_database_status.status_code_cs                  ? 
_pdbx_database_status.methods_development_category    ? 
_pdbx_database_status.status_code_nmr_data            ? 
# 
loop_
_audit_author.name 
_audit_author.pdbx_ordinal 
_audit_author.identifier_ORCID 
'Falb, M.'       1 ? 
'Amata, I.'      2 ? 
'Gabel, F.'      3 ? 
'Simon, B.'      4 ? 
'Carlomagno, T.' 5 ? 
# 
_citation.id                        primary 
_citation.title                     'Structure of the K-turn U4 RNA: a combined NMR and SANS study.' 
_citation.journal_abbrev            'Nucleic Acids Res.' 
_citation.journal_volume            38 
_citation.page_first                6274 
_citation.page_last                 6285 
_citation.year                      2010 
_citation.journal_id_ASTM           NARHAD 
_citation.country                   UK 
_citation.journal_id_ISSN           1362-4962 
_citation.journal_id_CSD            0389 
_citation.book_publisher            ? 
_citation.pdbx_database_id_PubMed   20466811 
_citation.pdbx_database_id_DOI      10.1093/nar/gkq380 
# 
loop_
_citation_author.citation_id 
_citation_author.name 
_citation_author.ordinal 
_citation_author.identifier_ORCID 
primary 'Falb, M.'       1 ? 
primary 'Amata, I.'      2 ? 
primary 'Gabel, F.'      3 ? 
primary 'Simon, B.'      4 ? 
primary 'Carlomagno, T.' 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(P*GP*AP*UP*CP*GP*UP*AP*GP*CP*CP*AP*AP*UP*GP*AP* GP*GP*UP*U)-3'
;
6118.682 1 ? YES 
;U4 5'-SL STRAND A, RESIDUES 19-37
;
? 
2 polymer syn "5'-R(P*GP*CP*CP*GP*AP*GP*GP*CP*GP*CP*GP*AP*UP*C)-3'"                 4516.764 1 ? YES 
;U4 5'-SL STRAND B, RESIDUES 40-53
;
? 
# 
loop_
_entity_name_com.entity_id 
_entity_name_com.name 
1 
;U4 SNRNA 5' STEM LOOP, U4B SNRNA
;
2 
;U4 SNRNA 5' STEM LOOP, U4A SNRNA
;
# 
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 GAUCGUAGCCAAUGAGGUU GAUCGUAGCCAAUGAGGUU A ? 
2 polyribonucleotide no no GCCGAGGCGCGAUC      GCCGAGGCGCGAUC      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  A n 
1 3  U n 
1 4  C n 
1 5  G n 
1 6  U n 
1 7  A n 
1 8  G n 
1 9  C n 
1 10 C n 
1 11 A n 
1 12 A n 
1 13 U n 
1 14 G n 
1 15 A n 
1 16 G n 
1 17 G n 
1 18 U n 
1 19 U n 
2 1  G n 
2 2  C n 
2 3  C n 
2 4  G n 
2 5  A n 
2 6  G n 
2 7  G n 
2 8  C n 
2 9  G n 
2 10 C n 
2 11 G n 
2 12 A n 
2 13 U n 
2 14 C n 
# 
loop_
_pdbx_entity_src_syn.entity_id 
_pdbx_entity_src_syn.pdbx_src_id 
_pdbx_entity_src_syn.pdbx_alt_source_flag 
_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 
1 1 sample ? ? 'HOMO SAPIENS' HUMAN 9606 ? 
2 1 sample ? ? 'HOMO SAPIENS' HUMAN 9606 ? 
# 
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  19 19 G G A . n 
A 1 2  A 2  20 20 A A A . n 
A 1 3  U 3  21 21 U U A . n 
A 1 4  C 4  22 22 C C A . n 
A 1 5  G 5  23 23 G G A . n 
A 1 6  U 6  24 24 U U A . n 
A 1 7  A 7  25 25 A A A . n 
A 1 8  G 8  26 26 G G A . n 
A 1 9  C 9  27 27 C C A . n 
A 1 10 C 10 28 28 C C A . n 
A 1 11 A 11 29 29 A A A . n 
A 1 12 A 12 30 30 A A A . n 
A 1 13 U 13 31 31 U U A . n 
A 1 14 G 14 32 32 G G A . n 
A 1 15 A 15 33 33 A A A . n 
A 1 16 G 16 34 34 G G A . n 
A 1 17 G 17 35 35 G G A . n 
A 1 18 U 18 36 36 U U A . n 
A 1 19 U 19 37 37 U U A . n 
B 2 1  G 1  40 40 G G B . n 
B 2 2  C 2  41 41 C C B . n 
B 2 3  C 3  42 42 C C B . n 
B 2 4  G 4  43 43 G G B . n 
B 2 5  A 5  44 44 A A B . n 
B 2 6  G 6  45 45 G G B . n 
B 2 7  G 7  46 46 G G B . n 
B 2 8  C 8  47 47 C C B . n 
B 2 9  G 9  48 48 G G B . n 
B 2 10 C 10 49 49 C C B . n 
B 2 11 G 11 50 50 G G B . n 
B 2 12 A 12 51 51 A A B . n 
B 2 13 U 13 52 52 U U B . n 
B 2 14 C 14 53 53 C C B . n 
# 
_cell.entry_id           2XEB 
_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                         2XEB 
_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          2XEB 
_exptl.method            'SOLUTION NMR' 
_exptl.crystals_number   ? 
# 
_database_PDB_matrix.entry_id          2XEB 
_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                  2XEB 
_struct.title                     
;NMR STRUCTURE OF THE PROTEIN-UNBOUND SPLICEOSOMAL U4 SNRNA 5' STEM LOOP
;
_struct.pdbx_model_details        ? 
_struct.pdbx_CASP_flag            ? 
_struct.pdbx_model_type_details   ? 
# 
_struct_keywords.entry_id        2XEB 
_struct_keywords.pdbx_keywords   RNA 
_struct_keywords.text            'RNA, PRE-MRNA SPLICING, U4/U6 DI-SNRNP, RNP-BINDING DOMAIN, SANS' 
# 
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.db_name 
_struct_ref.db_code 
_struct_ref.entity_id 
_struct_ref.pdbx_seq_one_letter_code 
_struct_ref.pdbx_align_begin 
_struct_ref.pdbx_db_accession 
_struct_ref.pdbx_db_isoform 
1 GB V00592 1 ? ? 36174 ? 
2 GB V00592 2 ? ? 36174 ? 
# 
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 2XEB A 1 ? 19 ? 36174 19 ? 37 ? 19 37 
2 2 2XEB B 1 ? 14 ? 36174 40 ? 53 ? 40 53 
# 
loop_
_struct_ref_seq_dif.align_id 
_struct_ref_seq_dif.pdbx_pdb_id_code 
_struct_ref_seq_dif.mon_id 
_struct_ref_seq_dif.pdbx_pdb_strand_id 
_struct_ref_seq_dif.seq_num 
_struct_ref_seq_dif.pdbx_pdb_ins_code 
_struct_ref_seq_dif.pdbx_seq_db_name 
_struct_ref_seq_dif.pdbx_seq_db_accession_code 
_struct_ref_seq_dif.db_mon_id 
_struct_ref_seq_dif.pdbx_seq_db_seq_num 
_struct_ref_seq_dif.details 
_struct_ref_seq_dif.pdbx_auth_seq_num 
_struct_ref_seq_dif.pdbx_ordinal 
1 2XEB G A 1  ? GB 36174 U 19 'engineered mutation' 19 1 
2 2XEB G B 1  ? GB 36174 U 40 'engineered mutation' 40 2 
2 2XEB C B 14 ? GB 36174 U 53 'engineered mutation' 53 3 
# 
_pdbx_struct_assembly.id                   1 
_pdbx_struct_assembly.details              software_defined_assembly 
_pdbx_struct_assembly.method_details       PISA 
_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 
# 
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 B C 14 N3 ? ? A G 19 B C 53 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog2  hydrog ? ? A G 1  N2 ? ? ? 1_555 B C 14 O2 ? ? A G 19 B C 53 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog3  hydrog ? ? A G 1  O6 ? ? ? 1_555 B C 14 N4 ? ? A G 19 B C 53 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog4  hydrog ? ? A A 2  N1 ? ? ? 1_555 B U 13 N3 ? ? A A 20 B U 52 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog5  hydrog ? ? A A 2  N6 ? ? ? 1_555 B U 13 O4 ? ? A A 20 B U 52 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog6  hydrog ? ? A U 3  N3 ? ? ? 1_555 B A 12 N1 ? ? A U 21 B A 51 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog7  hydrog ? ? A U 3  O4 ? ? ? 1_555 B A 12 N6 ? ? A U 21 B A 51 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog8  hydrog ? ? A C 4  N3 ? ? ? 1_555 B G 11 N1 ? ? A C 22 B G 50 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog9  hydrog ? ? A C 4  N4 ? ? ? 1_555 B G 11 O6 ? ? A C 22 B G 50 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog10 hydrog ? ? A C 4  O2 ? ? ? 1_555 B G 11 N2 ? ? A C 22 B G 50 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog11 hydrog ? ? A G 5  N1 ? ? ? 1_555 B C 10 N3 ? ? A G 23 B C 49 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog12 hydrog ? ? A G 5  N2 ? ? ? 1_555 B C 10 O2 ? ? A G 23 B C 49 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog13 hydrog ? ? A G 5  O6 ? ? ? 1_555 B C 10 N4 ? ? A G 23 B C 49 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog14 hydrog ? ? A U 6  N3 ? ? ? 1_555 B G 9  O6 ? ? A U 24 B G 48 1_555 ? ? ? ? ? ? TYPE_28_PAIR ? ? ? 
hydrog15 hydrog ? ? A U 6  O2 ? ? ? 1_555 B G 9  N1 ? ? A U 24 B G 48 1_555 ? ? ? ? ? ? TYPE_28_PAIR ? ? ? 
hydrog16 hydrog ? ? A G 8  N1 ? ? ? 1_555 B C 8  N3 ? ? A G 26 B C 47 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog17 hydrog ? ? A G 8  N2 ? ? ? 1_555 B C 8  O2 ? ? A G 26 B C 47 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog18 hydrog ? ? A G 8  O6 ? ? ? 1_555 B C 8  N4 ? ? A G 26 B C 47 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog19 hydrog ? ? A C 9  N3 ? ? ? 1_555 B G 7  N1 ? ? A C 27 B G 46 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog20 hydrog ? ? A C 9  N4 ? ? ? 1_555 B G 7  O6 ? ? A C 27 B G 46 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog21 hydrog ? ? A C 9  O2 ? ? ? 1_555 B G 7  N2 ? ? A C 27 B G 46 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog22 hydrog ? ? A C 10 N3 ? ? ? 1_555 B G 6  N1 ? ? A C 28 B G 45 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog23 hydrog ? ? A C 10 N4 ? ? ? 1_555 B G 6  O6 ? ? A C 28 B G 45 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog24 hydrog ? ? A C 10 O2 ? ? ? 1_555 B G 6  N2 ? ? A C 28 B G 45 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog25 hydrog ? ? A G 14 N2 ? ? ? 1_555 B A 5  N7 ? ? A G 32 B A 44 1_555 ? ? ? ? ? ? TYPE_11_PAIR ? ? ? 
hydrog26 hydrog ? ? A G 14 N3 ? ? ? 1_555 B A 5  N6 ? ? A G 32 B A 44 1_555 ? ? ? ? ? ? TYPE_11_PAIR ? ? ? 
hydrog27 hydrog ? ? A A 15 N6 ? ? ? 1_555 B G 4  N3 ? ? A A 33 B G 43 1_555 ? ? ? ? ? ? TYPE_11_PAIR ? ? ? 
hydrog28 hydrog ? ? A A 15 N7 ? ? ? 1_555 B G 4  N2 ? ? A A 33 B G 43 1_555 ? ? ? ? ? ? TYPE_11_PAIR ? ? ? 
hydrog29 hydrog ? ? A G 16 N1 ? ? ? 1_555 B C 3  N3 ? ? A G 34 B C 42 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog30 hydrog ? ? A G 16 N2 ? ? ? 1_555 B C 3  O2 ? ? A G 34 B C 42 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog31 hydrog ? ? A G 16 O6 ? ? ? 1_555 B C 3  N4 ? ? A G 34 B C 42 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog32 hydrog ? ? A G 17 N1 ? ? ? 1_555 B C 2  N3 ? ? A G 35 B C 41 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog33 hydrog ? ? A G 17 N2 ? ? ? 1_555 B C 2  O2 ? ? A G 35 B C 41 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog34 hydrog ? ? A G 17 O6 ? ? ? 1_555 B C 2  N4 ? ? A G 35 B C 41 1_555 ? ? ? ? ? ? WATSON-CRICK ? ? ? 
hydrog35 hydrog ? ? A U 18 N3 ? ? ? 1_555 B G 1  O6 ? ? A U 36 B G 40 1_555 ? ? ? ? ? ? TYPE_28_PAIR ? ? ? 
hydrog36 hydrog ? ? A U 18 O2 ? ? ? 1_555 B G 1  N1 ? ? A U 36 B G 40 1_555 ? ? ? ? ? ? TYPE_28_PAIR ? ? ? 
# 
_struct_conn_type.id          hydrog 
_struct_conn_type.criteria    ? 
_struct_conn_type.reference   ? 
# 
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 2  "C3'" A G 35 ? ? "C2'" A G 35 ? ? "C1'" A G 35 ? ? 96.38 101.30 -4.92 0.70 N 
2 4  "C3'" A G 35 ? ? "C2'" A G 35 ? ? "C1'" A G 35 ? ? 96.73 101.30 -4.57 0.70 N 
3 5  "C3'" A G 19 ? ? "C2'" A G 19 ? ? "C1'" A G 19 ? ? 96.98 101.30 -4.32 0.70 N 
4 7  "C3'" A G 19 ? ? "C2'" A G 19 ? ? "C1'" A G 19 ? ? 97.05 101.30 -4.25 0.70 N 
5 7  "C3'" A G 35 ? ? "C2'" A G 35 ? ? "C1'" A G 35 ? ? 96.26 101.30 -5.04 0.70 N 
6 8  "C3'" A G 19 ? ? "C2'" A G 19 ? ? "C1'" A G 19 ? ? 96.88 101.30 -4.42 0.70 N 
7 10 "C3'" A G 35 ? ? "C2'" A G 35 ? ? "C1'" A G 35 ? ? 96.91 101.30 -4.39 0.70 N 
# 
_pdbx_validate_planes.id              1 
_pdbx_validate_planes.PDB_model_num   1 
_pdbx_validate_planes.auth_comp_id    A 
_pdbx_validate_planes.auth_asym_id    A 
_pdbx_validate_planes.auth_seq_id     29 
_pdbx_validate_planes.PDB_ins_code    ? 
_pdbx_validate_planes.label_alt_id    ? 
_pdbx_validate_planes.rmsd            0.053 
_pdbx_validate_planes.type            'SIDE CHAIN' 
# 
_pdbx_entry_details.entry_id                 2XEB 
_pdbx_entry_details.compound_details         
;ENGINEERED RESIDUE IN CHAIN A, U 19 TO G
ENGINEERED RESIDUE IN CHAIN B, U 40 TO G
ENGINEERED RESIDUE IN CHAIN B, U 53 TO C
;
_pdbx_entry_details.source_details           ? 
_pdbx_entry_details.nonpolymer_details       ? 
_pdbx_entry_details.sequence_details         ? 
_pdbx_entry_details.has_ligand_of_interest   ? 
# 
_pdbx_nmr_ensemble.entry_id                             2XEB 
_pdbx_nmr_ensemble.conformers_calculated_total_number   100 
_pdbx_nmr_ensemble.conformers_submitted_total_number    10 
_pdbx_nmr_ensemble.conformer_selection_criteria         'LOWEST ENERGY STRUCTURES' 
# 
_pdbx_nmr_representative.entry_id             2XEB 
_pdbx_nmr_representative.conformer_id         1 
_pdbx_nmr_representative.selection_criteria   ? 
# 
_pdbx_nmr_sample_details.solution_id      1 
_pdbx_nmr_sample_details.contents         '90% H2O/10% D2O, 100% D2O' 
_pdbx_nmr_sample_details.solvent_system   ? 
_pdbx_nmr_sample_details.label            ? 
_pdbx_nmr_sample_details.type             ? 
_pdbx_nmr_sample_details.details          ? 
# 
loop_
_pdbx_nmr_exptl_sample_conditions.conditions_id 
_pdbx_nmr_exptl_sample_conditions.temperature 
_pdbx_nmr_exptl_sample_conditions.pressure_units 
_pdbx_nmr_exptl_sample_conditions.pressure 
_pdbx_nmr_exptl_sample_conditions.pH 
_pdbx_nmr_exptl_sample_conditions.ionic_strength 
_pdbx_nmr_exptl_sample_conditions.ionic_strength_units 
_pdbx_nmr_exptl_sample_conditions.pH_units 
_pdbx_nmr_exptl_sample_conditions.temperature_units 
_pdbx_nmr_exptl_sample_conditions.label 
1 298.0 atm 1.0 7.6 120 ? pH K ? 
2 298.0 atm 1.0 7.6 120 ? pH K ? 
3 298.0 atm 1.0 7.6 120 ? pH K ? 
4 298.0 atm 1.0 7.6 120 ? pH K ? 
5 278.0 atm 1.0 7.6 120 ? pH K ? 
# 
loop_
_pdbx_nmr_exptl.experiment_id 
_pdbx_nmr_exptl.conditions_id 
_pdbx_nmr_exptl.type 
_pdbx_nmr_exptl.solution_id 
1  1 '2D 1H-13C HSQC'        1 
2  1 '2D 1H-15N HSQC'        1 
3  1 '3D HCN'                1 
4  2 '2D 1H-13C HSQC'        1 
5  2 '2D 1H-15N HSQC'        1 
6  2 2D                      1 
7  3 '3D 13C-EDITED'         1 
8  3 '13C- FILTERED NOESY'   1 
9  3 '3D HCCH- COSY-TOCSY'   1 
10 3 '3D HCCH-E.COSY'        1 
11 4 '2D 15N HSQC'           1 
12 5 '15N- FILTERED NOESY'   1 
13 5 '3D HCN'                1 
14 6 3D-HCP                  1 
15 6 3D-ECOSY                1 
16 6 '2D-HNN- COSY'          1 
17 7 '2D 15N-FILTERED NOESY' 1 
# 
_pdbx_nmr_details.entry_id   2XEB 
_pdbx_nmr_details.text       NONE 
# 
_pdbx_nmr_refine.entry_id           2XEB 
_pdbx_nmr_refine.method             'RDC REFINEMENT, WATER REFINEMENT' 
_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           ARIA-CNS       ?   
'BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,READ, RICE,SIMONSON,WARREN' 1 
'structure solution' 'ARIA CNS 1.2' 1.1 ? 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  
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 
2XEB 'double helix'        
2XEB '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 C 14 1_555 -0.139 -0.106 -0.230 6.019  6.781   -1.659 1  A_G19:C53_B A 19 ? B 53 ? 19 1  
1 A A 2  1_555 B U 13 1_555 -0.310 -0.212 -0.287 -3.065 -10.029 6.162  2  A_A20:U52_B A 20 ? B 52 ? 20 1  
1 A U 3  1_555 B A 12 1_555 -0.142 -0.034 -0.117 3.620  -12.753 2.309  3  A_U21:A51_B A 21 ? B 51 ? 20 1  
1 A C 4  1_555 B G 11 1_555 0.090  -0.105 -0.052 3.082  -8.756  -1.735 4  A_C22:G50_B A 22 ? B 50 ? 19 1  
1 A G 5  1_555 B C 10 1_555 -0.118 -0.054 0.102  -5.824 -5.589  -1.635 5  A_G23:C49_B A 23 ? B 49 ? 19 1  
1 A U 6  1_555 B G 9  1_555 2.938  -0.660 0.335  -3.084 -4.236  2.778  6  A_U24:G48_B A 24 ? B 48 ? 28 1  
1 A G 8  1_555 B C 8  1_555 -0.100 -0.076 0.362  10.932 -9.640  -2.613 7  A_G26:C47_B A 26 ? B 47 ? 19 1  
1 A C 9  1_555 B G 7  1_555 0.084  -0.037 -0.081 -1.437 0.013   -1.933 8  A_C27:G46_B A 27 ? B 46 ? 19 1  
1 A C 10 1_555 B G 6  1_555 0.097  -0.132 -0.081 0.468  8.664   -3.078 9  A_C28:G45_B A 28 ? B 45 ? 19 1  
1 A G 14 1_555 B A 5  1_555 6.680  -4.943 -0.253 -8.876 -2.410  -9.790 10 A_G32:A44_B A 32 ? B 44 ? 11 10 
1 A A 15 1_555 B G 4  1_555 -6.685 -4.793 0.373  -0.630 6.841   -9.407 11 A_A33:G43_B A 33 ? B 43 ? 11 10 
1 A G 16 1_555 B C 3  1_555 -0.127 -0.068 -0.481 -9.178 1.807   -1.397 12 A_G34:C42_B A 34 ? B 42 ? 19 1  
1 A G 17 1_555 B C 2  1_555 -0.200 -0.129 -0.591 -1.448 -3.908  1.648  13 A_G35:C41_B A 35 ? B 41 ? 19 1  
1 A U 18 1_555 B G 1  1_555 3.191  0.084  0.257  -1.708 -2.642  12.029 14 A_U36:G40_B A 36 ? B 40 ? 28 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 A 2  1_555 B U 13 1_555 0.014  -1.817 3.443 -3.977 10.096  37.586  -3.913 -0.491 2.863 15.284 6.021 
39.067  1  AA_G19A20:U52C53_BB A 19 ? B 53 ? A 20 ? B 52 ? 
1 A A 2  1_555 B U 13 1_555 A U 3  1_555 B A 12 1_555 -0.123 -1.469 3.193 -0.714 0.309   30.187  -2.881 0.095  3.180 0.594  1.370 
30.197  2  AA_A20U21:A51U52_BB A 20 ? B 52 ? A 21 ? B 51 ? 
1 A U 3  1_555 B A 12 1_555 A C 4  1_555 B G 11 1_555 -0.688 -1.224 3.270 -2.698 1.727   37.325  -2.132 0.718  3.252 2.692  4.207 
37.458  3  AA_U21C22:G50A51_BB A 21 ? B 51 ? A 22 ? B 50 ? 
1 A C 4  1_555 B G 11 1_555 A G 5  1_555 B C 10 1_555 0.023  -2.016 3.465 -1.549 5.693   30.833  -4.803 -0.336 3.048 10.586 2.880 
31.379  4  AA_C22G23:C49G50_BB A 22 ? B 50 ? A 23 ? B 49 ? 
1 A G 5  1_555 B C 10 1_555 A U 6  1_555 B G 9  1_555 -0.019 -0.478 3.279 1.363  16.660  46.330  -1.810 0.124  2.951 20.411 -1.670 
49.096  5  AA_G23U24:G48C49_BB A 23 ? B 49 ? A 24 ? B 48 ? 
1 A U 6  1_555 B G 9  1_555 A G 8  1_555 B C 8  1_555 0.178  -1.290 5.131 24.162 2.362   13.084  -3.637 9.103  2.502 6.040  
-61.796 27.531  6  AA_U24G26:C47G48_BB A 24 ? B 48 ? A 26 ? B 47 ? 
1 A G 8  1_555 B C 8  1_555 A C 9  1_555 B G 7  1_555 0.218  -0.200 4.180 -1.180 25.763  34.185  -3.597 -0.452 3.260 37.876 1.734 
42.589  7  AA_G26C27:G46C47_BB A 26 ? B 47 ? A 27 ? B 46 ? 
1 A C 9  1_555 B G 7  1_555 A C 10 1_555 B G 6  1_555 -0.694 -0.237 3.454 -0.089 32.579  32.547  -3.299 0.884  2.328 46.200 0.126 
45.737  8  AA_C27C28:G45G46_BB A 27 ? B 46 ? A 28 ? B 45 ? 
1 A G 14 1_555 B A 5  1_555 A A 15 1_555 B G 4  1_555 0.478  -0.581 4.357 -6.106 -13.308 -37.021 2.900  -0.235 3.955 20.025 -9.188 
-39.717 9  AA_G32A33:G43A44_BB A 32 ? B 44 ? A 33 ? B 43 ? 
1 A A 15 1_555 B G 4  1_555 A G 16 1_555 B C 3  1_555 1.621  -1.927 3.496 1.429  12.702  59.627  -2.525 -1.531 3.101 12.616 -1.419 
60.858  10 AA_A33G34:C42G43_BB A 33 ? B 43 ? A 34 ? B 42 ? 
1 A G 16 1_555 B C 3  1_555 A G 17 1_555 B C 2  1_555 -0.061 -1.210 3.329 1.917  7.482   21.396  -5.648 0.814  2.737 19.359 -4.959 
22.732  11 AA_G34G35:C41C42_BB A 34 ? B 42 ? A 35 ? B 41 ? 
1 A G 17 1_555 B C 2  1_555 A U 18 1_555 B G 1  1_555 -0.277 -0.184 3.755 1.561  5.623   48.972  -0.701 0.466  3.703 6.755  -1.875 
49.297  12 AA_G35U36:G40C41_BB A 35 ? B 41 ? A 36 ? B 40 ? 
# 
loop_
_pdbx_nmr_spectrometer.spectrometer_id 
_pdbx_nmr_spectrometer.model 
_pdbx_nmr_spectrometer.manufacturer 
_pdbx_nmr_spectrometer.field_strength 
_pdbx_nmr_spectrometer.type 
1 AVANCE Bruker 900 ? 
2 AVANCE Bruker 800 ? 
3 AVANCE Bruker 700 ? 
4 AVANCE Bruker 600 ? 
5 AVANCE Bruker 600 ? 
# 
_atom_sites.entry_id                    2XEB 
_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_