data_1EL2
# 
_entry.id   1EL2 
# 
_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   1EL2         pdb_00001el2 10.2210/pdb1el2/pdb 
RCSB  RCSB010694   ?            ?                   
WWPDB D_1000010694 ?            ?                   
# 
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 2000-03-27 
2 'Structure model' 1 1 2008-04-27 
3 'Structure model' 1 2 2011-07-13 
4 'Structure model' 1 3 2022-02-16 
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_spectrometer 
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_nmr_spectrometer.model'        
4 4 'Structure model' '_struct_conn.pdbx_leaving_atom_flag' 
# 
_pdbx_database_status.status_code                     REL 
_pdbx_database_status.entry_id                        1EL2 
_pdbx_database_status.recvd_initial_deposition_date   2000-03-13 
_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          1ELN 
_pdbx_database_related.details        'Structure with A18-syn (conformer S)' 
_pdbx_database_related.content_type   unspecified 
# 
loop_
_audit_author.name 
_audit_author.pdbx_ordinal 
'Phan, A.T.'   1 
'Gueron, M.'   2 
'Leroy, J.-L.' 3 
# 
_citation.id                        primary 
_citation.title                     
'The solution structure and internal motions of a fragment of the cytidine-rich strand of the human telomere.' 
_citation.journal_abbrev            J.Mol.Biol. 
_citation.journal_volume            299 
_citation.page_first                123 
_citation.page_last                 144 
_citation.year                      2000 
_citation.journal_id_ASTM           JMOBAK 
_citation.country                   UK 
_citation.journal_id_ISSN           0022-2836 
_citation.journal_id_CSD            0070 
_citation.book_publisher            ? 
_citation.pdbx_database_id_PubMed   10860727 
_citation.pdbx_database_id_DOI      10.1006/jmbi.2000.3613 
# 
loop_
_citation_author.citation_id 
_citation_author.name 
_citation_author.ordinal 
_citation_author.identifier_ORCID 
primary 'Phan, A.T.'  1 ? 
primary 'Gueron, M.'  2 ? 
primary 'Leroy, J.L.' 3 ? 
# 
_entity.id                         1 
_entity.type                       polymer 
_entity.src_method                 syn 
_entity.pdbx_description           "5'-D(*CP*CP*CP*TP*AP*AP*(5CM)P*CP*CP*TP*AP*AP*CP*CP*CP*UP*AP*AP*CP*CP*CP*T)-3'" 
_entity.formula_weight             6521.236 
_entity.pdbx_number_of_molecules   1 
_entity.pdbx_ec                    ? 
_entity.pdbx_mutation              ? 
_entity.pdbx_fragment              ? 
_entity.details                    'cytosines C1, 2, 3 19, 20, and 21 protonated at N3' 
# 
_entity_name_com.entity_id   1 
_entity_name_com.name        'TELOMERE FRAGMENT' 
# 
_entity_poly.entity_id                      1 
_entity_poly.type                           polydeoxyribonucleotide 
_entity_poly.nstd_linkage                   no 
_entity_poly.nstd_monomer                   yes 
_entity_poly.pdbx_seq_one_letter_code       
;(DC)(DC)(DC)(DT)(DA)(DA)(5CM)(DC)(DC)(DT)(DA)(DA)(DC)(DC)(DC)(DU)(DA)(DA)(DC)
(DC)(DC)(DT)
;
_entity_poly.pdbx_seq_one_letter_code_can   CCCTAACCCTAACCCUAACCCT 
_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  DC  n 
1 2  DC  n 
1 3  DC  n 
1 4  DT  n 
1 5  DA  n 
1 6  DA  n 
1 7  5CM n 
1 8  DC  n 
1 9  DC  n 
1 10 DT  n 
1 11 DA  n 
1 12 DA  n 
1 13 DC  n 
1 14 DC  n 
1 15 DC  n 
1 16 DU  n 
1 17 DA  n 
1 18 DA  n 
1 19 DC  n 
1 20 DC  n 
1 21 DC  n 
1 22 DT  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 
5CM 'DNA linking' n "5-METHYL-2'-DEOXY-CYTIDINE-5'-MONOPHOSPHATE" ? 'C10 H16 N3 O7 P' 321.224 
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 
DU  'DNA linking' y "2'-DEOXYURIDINE-5'-MONOPHOSPHATE"            ? 'C9 H13 N2 O8 P'  308.182 
# 
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  DC  1  1  1  DC  C   A . n 
A 1 2  DC  2  2  2  DC  C   A . n 
A 1 3  DC  3  3  3  DC  C   A . n 
A 1 4  DT  4  4  4  DT  T   A . n 
A 1 5  DA  5  5  5  DA  A   A . n 
A 1 6  DA  6  6  6  DA  A   A . n 
A 1 7  5CM 7  7  7  5CM 5CM A . n 
A 1 8  DC  8  8  8  DC  C   A . n 
A 1 9  DC  9  9  9  DC  C   A . n 
A 1 10 DT  10 10 10 DT  T   A . n 
A 1 11 DA  11 11 11 DA  A   A . n 
A 1 12 DA  12 12 12 DA  A   A . n 
A 1 13 DC  13 13 13 DC  C   A . n 
A 1 14 DC  14 14 14 DC  C   A . n 
A 1 15 DC  15 15 15 DC  C   A . n 
A 1 16 DU  16 16 16 DU  U   A . n 
A 1 17 DA  17 17 17 DA  A   A . n 
A 1 18 DA  18 18 18 DA  A   A . n 
A 1 19 DC  19 19 19 DC  C   A . n 
A 1 20 DC  20 20 20 DC  C   A . n 
A 1 21 DC  21 21 21 DC  C   A . n 
A 1 22 DT  22 22 22 DT  T   A . n 
# 
_cell.entry_id           1EL2 
_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                         1EL2 
_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          1EL2 
_exptl.method            'SOLUTION NMR' 
_exptl.crystals_number   ? 
# 
_database_PDB_matrix.entry_id          1EL2 
_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                  1EL2 
_struct.title                     
;SOLUTION STRUCTURE OF A MODIFIED HUMAN TELOMERE FRAGMENT (STRUCTURE "A")
;
_struct.pdbx_model_details        ? 
_struct.pdbx_CASP_flag            ? 
_struct.pdbx_model_type_details   ? 
# 
_struct_keywords.entry_id        1EL2 
_struct_keywords.pdbx_keywords   DNA 
_struct_keywords.text            'DNA solution structure, i-motif, interacting loops, loop motions, telomere, DNA' 
# 
_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                    1EL2 
_struct_ref.pdbx_db_accession          1EL2 
_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              1EL2 
_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                 22 
_struct_ref_seq.pdbx_seq_align_end_ins_code   ? 
_struct_ref_seq.pdbx_db_accession             1EL2 
_struct_ref_seq.db_align_beg                  1 
_struct_ref_seq.pdbx_db_align_beg_ins_code    ? 
_struct_ref_seq.db_align_end                  22 
_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       22 
# 
_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 
covale1  covale both ? A DA  6  "O3'" ? ? ? 1_555 A 5CM 7  P  ? ? A DA  6  A 5CM 7  1_555 ? ? ? ? ? ? ?               1.613 ? ? 
covale2  covale both ? A 5CM 7  "O3'" ? ? ? 1_555 A DC  8  P  ? ? A 5CM 7  A DC  8  1_555 ? ? ? ? ? ? ?               1.613 ? ? 
hydrog1  hydrog ?    ? A DC  1  N4    ? ? ? 1_555 A DC  13 O2 ? ? A DC  1  A DC  13 1_555 ? ? ? ? ? ? TYPE_15_PAIR    ?     ? ? 
hydrog2  hydrog ?    ? A DC  1  O2    ? ? ? 1_555 A DC  13 N4 ? ? A DC  1  A DC  13 1_555 ? ? ? ? ? ? TYPE_15_PAIR    ?     ? ? 
hydrog3  hydrog ?    ? A DC  2  N4    ? ? ? 1_555 A DC  9  N3 ? ? A DC  2  A DC  9  1_555 ? ? ? ? ? ? 'DC-DC MISPAIR' ?     ? ? 
hydrog4  hydrog ?    ? A DC  2  N4    ? ? ? 1_555 A DC  14 O2 ? ? A DC  2  A DC  14 1_555 ? ? ? ? ? ? TYPE_15_PAIR    ?     ? ? 
hydrog5  hydrog ?    ? A DC  2  O2    ? ? ? 1_555 A DC  14 N4 ? ? A DC  2  A DC  14 1_555 ? ? ? ? ? ? TYPE_15_PAIR    ?     ? ? 
hydrog6  hydrog ?    ? A DC  3  N3    ? ? ? 1_555 A DC  15 N4 ? ? A DC  3  A DC  15 1_555 ? ? ? ? ? ? TYPE_14_PAIR    ?     ? ? 
hydrog7  hydrog ?    ? A DC  3  N4    ? ? ? 1_555 A DC  15 N3 ? ? A DC  3  A DC  15 1_555 ? ? ? ? ? ? TYPE_14_PAIR    ?     ? ? 
hydrog8  hydrog ?    ? A DA  6  N6    ? ? ? 1_555 A DA  17 N7 ? ? A DA  6  A DA  17 1_555 ? ? ? ? ? ? 'DA-DA MISPAIR' ?     ? ? 
hydrog9  hydrog ?    ? A 5CM 7  N3    ? ? ? 1_555 A DC  19 N4 ? ? A 5CM 7  A DC  19 1_555 ? ? ? ? ? ? TYPE_14_PAIR    ?     ? ? 
hydrog10 hydrog ?    ? A 5CM 7  N4    ? ? ? 1_555 A DC  19 N3 ? ? A 5CM 7  A DC  19 1_555 ? ? ? ? ? ? TYPE_14_PAIR    ?     ? ? 
hydrog11 hydrog ?    ? A DC  8  N3    ? ? ? 1_555 A DC  20 N4 ? ? A DC  8  A DC  20 1_555 ? ? ? ? ? ? TYPE_14_PAIR    ?     ? ? 
hydrog12 hydrog ?    ? A DC  8  N4    ? ? ? 1_555 A DC  20 N3 ? ? A DC  8  A DC  20 1_555 ? ? ? ? ? ? TYPE_14_PAIR    ?     ? ? 
hydrog13 hydrog ?    ? A DC  9  N4    ? ? ? 1_555 A DC  21 O2 ? ? A DC  9  A DC  21 1_555 ? ? ? ? ? ? TYPE_15_PAIR    ?     ? ? 
hydrog14 hydrog ?    ? A DC  9  O2    ? ? ? 1_555 A DC  21 N4 ? ? A DC  9  A DC  21 1_555 ? ? ? ? ? ? TYPE_15_PAIR    ?     ? ? 
hydrog15 hydrog ?    ? A DA  11 N3    ? ? ? 1_555 A DT  22 N3 ? ? A DA  11 A DT  22 1_555 ? ? ? ? ? ? 'DA-DT PAIR'    ?     ? ? 
hydrog16 hydrog ?    ? A DU  16 N3    ? ? ? 1_555 A DA  18 N1 ? ? A DU  16 A DA  18 1_555 ? ? ? ? ? ? 'DU-DA PAIR'    ?     ? ? 
# 
loop_
_struct_conn_type.id 
_struct_conn_type.criteria 
_struct_conn_type.reference 
covale ? ? 
hydrog ? ? 
# 
_pdbx_validate_close_contact.id               1 
_pdbx_validate_close_contact.PDB_model_num    1 
_pdbx_validate_close_contact.auth_atom_id_1   H73 
_pdbx_validate_close_contact.auth_asym_id_1   A 
_pdbx_validate_close_contact.auth_comp_id_1   DT 
_pdbx_validate_close_contact.auth_seq_id_1    4 
_pdbx_validate_close_contact.PDB_ins_code_1   ? 
_pdbx_validate_close_contact.label_alt_id_1   ? 
_pdbx_validate_close_contact.auth_atom_id_2   "O4'" 
_pdbx_validate_close_contact.auth_asym_id_2   A 
_pdbx_validate_close_contact.auth_comp_id_2   DC 
_pdbx_validate_close_contact.auth_seq_id_2    19 
_pdbx_validate_close_contact.PDB_ins_code_2   ? 
_pdbx_validate_close_contact.label_alt_id_2   ? 
_pdbx_validate_close_contact.dist             1.51 
# 
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 "O4'" A DC 1  ? ? "C1'" A DC 1  ? ? N1 A DC 1  ? ? 110.50 108.30 2.20  0.30 N 
2  1 C2    A DC 1  ? ? N3    A DC 1  ? ? C4 A DC 1  ? ? 123.02 119.90 3.12  0.50 N 
3  1 N1    A DC 1  ? ? C2    A DC 1  ? ? O2 A DC 1  ? ? 122.63 118.90 3.73  0.60 N 
4  1 "O4'" A DC 2  ? ? "C1'" A DC 2  ? ? N1 A DC 2  ? ? 110.67 108.30 2.37  0.30 N 
5  1 C2    A DC 2  ? ? N3    A DC 2  ? ? C4 A DC 2  ? ? 122.96 119.90 3.06  0.50 N 
6  1 N1    A DC 2  ? ? C2    A DC 2  ? ? O2 A DC 2  ? ? 122.69 118.90 3.79  0.60 N 
7  1 "O4'" A DC 3  ? ? "C1'" A DC 3  ? ? N1 A DC 3  ? ? 111.02 108.30 2.72  0.30 N 
8  1 C2    A DC 3  ? ? N3    A DC 3  ? ? C4 A DC 3  ? ? 123.08 119.90 3.18  0.50 N 
9  1 "O4'" A DT 4  ? ? "C1'" A DT 4  ? ? N1 A DT 4  ? ? 111.87 108.30 3.57  0.30 N 
10 1 "O4'" A DA 5  ? ? "C1'" A DA 5  ? ? N9 A DA 5  ? ? 112.84 108.30 4.54  0.30 N 
11 1 N7    A DA 5  ? ? C8    A DA 5  ? ? N9 A DA 5  ? ? 117.14 113.80 3.34  0.50 N 
12 1 "O4'" A DA 6  ? ? "C1'" A DA 6  ? ? N9 A DA 6  ? ? 111.41 108.30 3.11  0.30 N 
13 1 N7    A DA 6  ? ? C8    A DA 6  ? ? N9 A DA 6  ? ? 117.53 113.80 3.73  0.50 N 
14 1 C8    A DA 6  ? ? N9    A DA 6  ? ? C4 A DA 6  ? ? 103.35 105.80 -2.45 0.40 N 
15 1 "O4'" A DC 8  ? ? "C1'" A DC 8  ? ? N1 A DC 8  ? ? 110.78 108.30 2.48  0.30 N 
16 1 "O4'" A DC 9  ? ? "C1'" A DC 9  ? ? N1 A DC 9  ? ? 110.53 108.30 2.23  0.30 N 
17 1 "O4'" A DT 10 ? ? "C1'" A DT 10 ? ? N1 A DT 10 ? ? 110.79 108.30 2.49  0.30 N 
18 1 "O4'" A DA 11 ? ? "C1'" A DA 11 ? ? N9 A DA 11 ? ? 110.76 108.30 2.46  0.30 N 
19 1 N7    A DA 11 ? ? C8    A DA 11 ? ? N9 A DA 11 ? ? 117.62 113.80 3.82  0.50 N 
20 1 "O4'" A DA 12 ? ? "C1'" A DA 12 ? ? N9 A DA 12 ? ? 111.09 108.30 2.79  0.30 N 
21 1 N7    A DA 12 ? ? C8    A DA 12 ? ? N9 A DA 12 ? ? 117.54 113.80 3.74  0.50 N 
22 1 "O4'" A DC 13 ? ? "C1'" A DC 13 ? ? N1 A DC 13 ? ? 110.84 108.30 2.54  0.30 N 
23 1 "O4'" A DC 14 ? ? "C1'" A DC 14 ? ? N1 A DC 14 ? ? 111.06 108.30 2.76  0.30 N 
24 1 "O4'" A DC 15 ? ? "C1'" A DC 15 ? ? N1 A DC 15 ? ? 111.20 108.30 2.90  0.30 N 
25 1 "O4'" A DU 16 ? ? "C1'" A DU 16 ? ? N1 A DU 16 ? ? 111.81 108.30 3.51  0.30 N 
26 1 "O4'" A DA 17 ? ? "C1'" A DA 17 ? ? N9 A DA 17 ? ? 112.18 108.30 3.88  0.30 N 
27 1 C5    A DA 17 ? ? N7    A DA 17 ? ? C8 A DA 17 ? ? 99.81  103.90 -4.09 0.50 N 
28 1 N7    A DA 17 ? ? C8    A DA 17 ? ? N9 A DA 17 ? ? 117.65 113.80 3.85  0.50 N 
29 1 "O4'" A DA 18 ? ? "C1'" A DA 18 ? ? N9 A DA 18 ? ? 110.89 108.30 2.59  0.30 N 
30 1 N7    A DA 18 ? ? C8    A DA 18 ? ? N9 A DA 18 ? ? 117.69 113.80 3.89  0.50 N 
31 1 C8    A DA 18 ? ? N9    A DA 18 ? ? C4 A DA 18 ? ? 103.39 105.80 -2.41 0.40 N 
32 1 C2    A DC 19 ? ? N3    A DC 19 ? ? C4 A DC 19 ? ? 123.39 119.90 3.49  0.50 N 
33 1 N1    A DC 19 ? ? C2    A DC 19 ? ? O2 A DC 19 ? ? 123.01 118.90 4.11  0.60 N 
34 1 "O4'" A DC 20 ? ? "C1'" A DC 20 ? ? N1 A DC 20 ? ? 111.02 108.30 2.72  0.30 N 
35 1 C2    A DC 20 ? ? N3    A DC 20 ? ? C4 A DC 20 ? ? 123.12 119.90 3.22  0.50 N 
36 1 "O4'" A DC 21 ? ? "C1'" A DC 21 ? ? N1 A DC 21 ? ? 110.40 108.30 2.10  0.30 N 
37 1 C2    A DC 21 ? ? N3    A DC 21 ? ? C4 A DC 21 ? ? 122.96 119.90 3.06  0.50 N 
38 1 "O4'" A DT 22 ? ? "C1'" A DT 22 ? ? N1 A DT 22 ? ? 110.11 108.30 1.81  0.30 N 
39 1 C6    A DT 22 ? ? C5    A DT 22 ? ? C7 A DT 22 ? ? 119.10 122.90 -3.80 0.60 N 
# 
_pdbx_validate_planes.id              1 
_pdbx_validate_planes.PDB_model_num   1 
_pdbx_validate_planes.auth_comp_id    DA 
_pdbx_validate_planes.auth_asym_id    A 
_pdbx_validate_planes.auth_seq_id     5 
_pdbx_validate_planes.PDB_ins_code    ? 
_pdbx_validate_planes.label_alt_id    ? 
_pdbx_validate_planes.rmsd            0.073 
_pdbx_validate_planes.type            'SIDE CHAIN' 
# 
_pdbx_struct_mod_residue.id               1 
_pdbx_struct_mod_residue.label_asym_id    A 
_pdbx_struct_mod_residue.label_comp_id    5CM 
_pdbx_struct_mod_residue.label_seq_id     7 
_pdbx_struct_mod_residue.auth_asym_id     A 
_pdbx_struct_mod_residue.auth_comp_id     5CM 
_pdbx_struct_mod_residue.auth_seq_id      7 
_pdbx_struct_mod_residue.PDB_ins_code     ? 
_pdbx_struct_mod_residue.parent_comp_id   DC 
_pdbx_struct_mod_residue.details          ? 
# 
_pdbx_nmr_ensemble.entry_id                                      1EL2 
_pdbx_nmr_ensemble.conformers_calculated_total_number            100 
_pdbx_nmr_ensemble.conformers_submitted_total_number             1 
_pdbx_nmr_ensemble.conformer_selection_criteria                  
'structures with the least restraint violations, structures with the lowest 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             1EL2 
_pdbx_nmr_representative.conformer_id         1 
_pdbx_nmr_representative.selection_criteria   'fewest violations, lowest energy' 
# 
_pdbx_nmr_sample_details.solution_id      1 
_pdbx_nmr_sample_details.contents         '1.5 to 4 mM of unlabeled DNA' 
_pdbx_nmr_sample_details.solvent_system   water 
# 
_pdbx_nmr_exptl_sample_conditions.conditions_id       1 
_pdbx_nmr_exptl_sample_conditions.temperature         ? 
_pdbx_nmr_exptl_sample_conditions.pressure            ambient 
_pdbx_nmr_exptl_sample_conditions.pH                  5 
_pdbx_nmr_exptl_sample_conditions.ionic_strength      '~10mM NaCl' 
_pdbx_nmr_exptl_sample_conditions.pressure_units      ? 
_pdbx_nmr_exptl_sample_conditions.temperature_units   K 
# 
_pdbx_nmr_exptl.experiment_id   1 
_pdbx_nmr_exptl.conditions_id   1 
_pdbx_nmr_exptl.solution_id     1 
_pdbx_nmr_exptl.type            'NOESY, COSY, TOCSY, 31P-1H hetero-TOCSY, 13C-1H HSQC, HMBC, JRHMBC' 
# 
_pdbx_nmr_details.entry_id   1EL2 
_pdbx_nmr_details.text       
'The structure was determined using 2D homonuclear and natural abundance heteronuclear techniques at temperatures 263-303.' 
# 
_pdbx_nmr_refine.entry_id           1EL2 
_pdbx_nmr_refine.method             'simulated annealing' 
_pdbx_nmr_refine.details            ? 
_pdbx_nmr_refine.software_ordinal   1 
# 
_pdbx_nmr_software.name             X-PLOR 
_pdbx_nmr_software.version          3.851 
_pdbx_nmr_software.classification   refinement 
_pdbx_nmr_software.authors          Brunger 
_pdbx_nmr_software.ordinal          1 
# 
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 
5CM N1     N N N 1   
5CM C2     C N N 2   
5CM N3     N N N 3   
5CM C4     C N N 4   
5CM C5     C N N 5   
5CM C5A    C N N 6   
5CM C6     C N N 7   
5CM O2     O N N 8   
5CM N4     N N N 9   
5CM "C1'"  C N R 10  
5CM "C2'"  C N N 11  
5CM "C3'"  C N S 12  
5CM "C4'"  C N R 13  
5CM "O4'"  O N N 14  
5CM "O3'"  O N N 15  
5CM "C5'"  C N N 16  
5CM "O5'"  O N N 17  
5CM P      P N N 18  
5CM OP1    O N N 19  
5CM OP2    O N N 20  
5CM OP3    O N N 21  
5CM H5A1   H N N 22  
5CM H5A2   H N N 23  
5CM H5A3   H N N 24  
5CM H6     H N N 25  
5CM HN41   H N N 26  
5CM HN42   H N N 27  
5CM "H1'"  H N N 28  
5CM "H2'"  H N N 29  
5CM "H2''" H N N 30  
5CM "H3'"  H N N 31  
5CM "H4'"  H N N 32  
5CM "HO3'" H N N 33  
5CM "H5'"  H N N 34  
5CM "H5''" H N N 35  
5CM HOP2   H N N 36  
5CM HOP3   H N N 37  
DA  OP3    O N N 38  
DA  P      P N N 39  
DA  OP1    O N N 40  
DA  OP2    O N N 41  
DA  "O5'"  O N N 42  
DA  "C5'"  C N N 43  
DA  "C4'"  C N R 44  
DA  "O4'"  O N N 45  
DA  "C3'"  C N S 46  
DA  "O3'"  O N N 47  
DA  "C2'"  C N N 48  
DA  "C1'"  C N R 49  
DA  N9     N Y N 50  
DA  C8     C Y N 51  
DA  N7     N Y N 52  
DA  C5     C Y N 53  
DA  C6     C Y N 54  
DA  N6     N N N 55  
DA  N1     N Y N 56  
DA  C2     C Y N 57  
DA  N3     N Y N 58  
DA  C4     C Y N 59  
DA  HOP3   H N N 60  
DA  HOP2   H N N 61  
DA  "H5'"  H N N 62  
DA  "H5''" H N N 63  
DA  "H4'"  H N N 64  
DA  "H3'"  H N N 65  
DA  "HO3'" H N N 66  
DA  "H2'"  H N N 67  
DA  "H2''" H N N 68  
DA  "H1'"  H N N 69  
DA  H8     H N N 70  
DA  H61    H N N 71  
DA  H62    H N N 72  
DA  H2     H N N 73  
DC  OP3    O N N 74  
DC  P      P N N 75  
DC  OP1    O N N 76  
DC  OP2    O N N 77  
DC  "O5'"  O N N 78  
DC  "C5'"  C N N 79  
DC  "C4'"  C N R 80  
DC  "O4'"  O N N 81  
DC  "C3'"  C N S 82  
DC  "O3'"  O N N 83  
DC  "C2'"  C N N 84  
DC  "C1'"  C N R 85  
DC  N1     N N N 86  
DC  C2     C N N 87  
DC  O2     O N N 88  
DC  N3     N N N 89  
DC  C4     C N N 90  
DC  N4     N N N 91  
DC  C5     C N N 92  
DC  C6     C N N 93  
DC  HOP3   H N N 94  
DC  HOP2   H N N 95  
DC  "H5'"  H N N 96  
DC  "H5''" H N N 97  
DC  "H4'"  H N N 98  
DC  "H3'"  H N N 99  
DC  "HO3'" H N N 100 
DC  "H2'"  H N N 101 
DC  "H2''" H N N 102 
DC  "H1'"  H N N 103 
DC  H41    H N N 104 
DC  H42    H N N 105 
DC  H5     H N N 106 
DC  H6     H N N 107 
DT  OP3    O N N 108 
DT  P      P N N 109 
DT  OP1    O N N 110 
DT  OP2    O N N 111 
DT  "O5'"  O N N 112 
DT  "C5'"  C N N 113 
DT  "C4'"  C N R 114 
DT  "O4'"  O N N 115 
DT  "C3'"  C N S 116 
DT  "O3'"  O N N 117 
DT  "C2'"  C N N 118 
DT  "C1'"  C N R 119 
DT  N1     N N N 120 
DT  C2     C N N 121 
DT  O2     O N N 122 
DT  N3     N N N 123 
DT  C4     C N N 124 
DT  O4     O N N 125 
DT  C5     C N N 126 
DT  C7     C N N 127 
DT  C6     C N N 128 
DT  HOP3   H N N 129 
DT  HOP2   H N N 130 
DT  "H5'"  H N N 131 
DT  "H5''" H N N 132 
DT  "H4'"  H N N 133 
DT  "H3'"  H N N 134 
DT  "HO3'" H N N 135 
DT  "H2'"  H N N 136 
DT  "H2''" H N N 137 
DT  "H1'"  H N N 138 
DT  H3     H N N 139 
DT  H71    H N N 140 
DT  H72    H N N 141 
DT  H73    H N N 142 
DT  H6     H N N 143 
DU  OP3    O N N 144 
DU  P      P N N 145 
DU  OP1    O N N 146 
DU  OP2    O N N 147 
DU  "O5'"  O N N 148 
DU  "C5'"  C N N 149 
DU  "C4'"  C N R 150 
DU  "O4'"  O N N 151 
DU  "C3'"  C N S 152 
DU  "O3'"  O N N 153 
DU  "C2'"  C N N 154 
DU  "C1'"  C N R 155 
DU  N1     N N N 156 
DU  C2     C N N 157 
DU  O2     O N N 158 
DU  N3     N N N 159 
DU  C4     C N N 160 
DU  O4     O N N 161 
DU  C5     C N N 162 
DU  C6     C N N 163 
DU  HOP3   H N N 164 
DU  HOP2   H N N 165 
DU  "H5'"  H N N 166 
DU  "H5''" H N N 167 
DU  "H4'"  H N N 168 
DU  "H3'"  H N N 169 
DU  "HO3'" H N N 170 
DU  "H2'"  H N N 171 
DU  "H2''" H N N 172 
DU  "H1'"  H N N 173 
DU  H3     H N N 174 
DU  H5     H N N 175 
DU  H6     H N N 176 
# 
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 
5CM N1    C2     sing N N 1   
5CM N1    C6     sing N N 2   
5CM N1    "C1'"  sing N N 3   
5CM C2    N3     sing N N 4   
5CM C2    O2     doub N N 5   
5CM N3    C4     doub N N 6   
5CM C4    C5     sing N N 7   
5CM C4    N4     sing N N 8   
5CM C5    C5A    sing N N 9   
5CM C5    C6     doub N N 10  
5CM C5A   H5A1   sing N N 11  
5CM C5A   H5A2   sing N N 12  
5CM C5A   H5A3   sing N N 13  
5CM C6    H6     sing N N 14  
5CM N4    HN41   sing N N 15  
5CM N4    HN42   sing N N 16  
5CM "C1'" "C2'"  sing N N 17  
5CM "C1'" "O4'"  sing N N 18  
5CM "C1'" "H1'"  sing N N 19  
5CM "C2'" "C3'"  sing N N 20  
5CM "C2'" "H2'"  sing N N 21  
5CM "C2'" "H2''" sing N N 22  
5CM "C3'" "C4'"  sing N N 23  
5CM "C3'" "O3'"  sing N N 24  
5CM "C3'" "H3'"  sing N N 25  
5CM "C4'" "O4'"  sing N N 26  
5CM "C4'" "C5'"  sing N N 27  
5CM "C4'" "H4'"  sing N N 28  
5CM "O3'" "HO3'" sing N N 29  
5CM "C5'" "O5'"  sing N N 30  
5CM "C5'" "H5'"  sing N N 31  
5CM "C5'" "H5''" sing N N 32  
5CM "O5'" P      sing N N 33  
5CM P     OP1    doub N N 34  
5CM P     OP2    sing N N 35  
5CM P     OP3    sing N N 36  
5CM OP2   HOP2   sing N N 37  
5CM OP3   HOP3   sing N N 38  
DA  OP3   P      sing N N 39  
DA  OP3   HOP3   sing N N 40  
DA  P     OP1    doub N N 41  
DA  P     OP2    sing N N 42  
DA  P     "O5'"  sing N N 43  
DA  OP2   HOP2   sing N N 44  
DA  "O5'" "C5'"  sing N N 45  
DA  "C5'" "C4'"  sing N N 46  
DA  "C5'" "H5'"  sing N N 47  
DA  "C5'" "H5''" sing N N 48  
DA  "C4'" "O4'"  sing N N 49  
DA  "C4'" "C3'"  sing N N 50  
DA  "C4'" "H4'"  sing N N 51  
DA  "O4'" "C1'"  sing N N 52  
DA  "C3'" "O3'"  sing N N 53  
DA  "C3'" "C2'"  sing N N 54  
DA  "C3'" "H3'"  sing N N 55  
DA  "O3'" "HO3'" sing N N 56  
DA  "C2'" "C1'"  sing N N 57  
DA  "C2'" "H2'"  sing N N 58  
DA  "C2'" "H2''" sing N N 59  
DA  "C1'" N9     sing N N 60  
DA  "C1'" "H1'"  sing N N 61  
DA  N9    C8     sing Y N 62  
DA  N9    C4     sing Y N 63  
DA  C8    N7     doub Y N 64  
DA  C8    H8     sing N N 65  
DA  N7    C5     sing Y N 66  
DA  C5    C6     sing Y N 67  
DA  C5    C4     doub Y N 68  
DA  C6    N6     sing N N 69  
DA  C6    N1     doub Y N 70  
DA  N6    H61    sing N N 71  
DA  N6    H62    sing N N 72  
DA  N1    C2     sing Y N 73  
DA  C2    N3     doub Y N 74  
DA  C2    H2     sing N N 75  
DA  N3    C4     sing Y N 76  
DC  OP3   P      sing N N 77  
DC  OP3   HOP3   sing N N 78  
DC  P     OP1    doub N N 79  
DC  P     OP2    sing N N 80  
DC  P     "O5'"  sing N N 81  
DC  OP2   HOP2   sing N N 82  
DC  "O5'" "C5'"  sing N N 83  
DC  "C5'" "C4'"  sing N N 84  
DC  "C5'" "H5'"  sing N N 85  
DC  "C5'" "H5''" sing N N 86  
DC  "C4'" "O4'"  sing N N 87  
DC  "C4'" "C3'"  sing N N 88  
DC  "C4'" "H4'"  sing N N 89  
DC  "O4'" "C1'"  sing N N 90  
DC  "C3'" "O3'"  sing N N 91  
DC  "C3'" "C2'"  sing N N 92  
DC  "C3'" "H3'"  sing N N 93  
DC  "O3'" "HO3'" sing N N 94  
DC  "C2'" "C1'"  sing N N 95  
DC  "C2'" "H2'"  sing N N 96  
DC  "C2'" "H2''" sing N N 97  
DC  "C1'" N1     sing N N 98  
DC  "C1'" "H1'"  sing N N 99  
DC  N1    C2     sing N N 100 
DC  N1    C6     sing N N 101 
DC  C2    O2     doub N N 102 
DC  C2    N3     sing N N 103 
DC  N3    C4     doub N N 104 
DC  C4    N4     sing N N 105 
DC  C4    C5     sing N N 106 
DC  N4    H41    sing N N 107 
DC  N4    H42    sing N N 108 
DC  C5    C6     doub N N 109 
DC  C5    H5     sing N N 110 
DC  C6    H6     sing N N 111 
DT  OP3   P      sing N N 112 
DT  OP3   HOP3   sing N N 113 
DT  P     OP1    doub N N 114 
DT  P     OP2    sing N N 115 
DT  P     "O5'"  sing N N 116 
DT  OP2   HOP2   sing N N 117 
DT  "O5'" "C5'"  sing N N 118 
DT  "C5'" "C4'"  sing N N 119 
DT  "C5'" "H5'"  sing N N 120 
DT  "C5'" "H5''" sing N N 121 
DT  "C4'" "O4'"  sing N N 122 
DT  "C4'" "C3'"  sing N N 123 
DT  "C4'" "H4'"  sing N N 124 
DT  "O4'" "C1'"  sing N N 125 
DT  "C3'" "O3'"  sing N N 126 
DT  "C3'" "C2'"  sing N N 127 
DT  "C3'" "H3'"  sing N N 128 
DT  "O3'" "HO3'" sing N N 129 
DT  "C2'" "C1'"  sing N N 130 
DT  "C2'" "H2'"  sing N N 131 
DT  "C2'" "H2''" sing N N 132 
DT  "C1'" N1     sing N N 133 
DT  "C1'" "H1'"  sing N N 134 
DT  N1    C2     sing N N 135 
DT  N1    C6     sing N N 136 
DT  C2    O2     doub N N 137 
DT  C2    N3     sing N N 138 
DT  N3    C4     sing N N 139 
DT  N3    H3     sing N N 140 
DT  C4    O4     doub N N 141 
DT  C4    C5     sing N N 142 
DT  C5    C7     sing N N 143 
DT  C5    C6     doub N N 144 
DT  C7    H71    sing N N 145 
DT  C7    H72    sing N N 146 
DT  C7    H73    sing N N 147 
DT  C6    H6     sing N N 148 
DU  OP3   P      sing N N 149 
DU  OP3   HOP3   sing N N 150 
DU  P     OP1    doub N N 151 
DU  P     OP2    sing N N 152 
DU  P     "O5'"  sing N N 153 
DU  OP2   HOP2   sing N N 154 
DU  "O5'" "C5'"  sing N N 155 
DU  "C5'" "C4'"  sing N N 156 
DU  "C5'" "H5'"  sing N N 157 
DU  "C5'" "H5''" sing N N 158 
DU  "C4'" "O4'"  sing N N 159 
DU  "C4'" "C3'"  sing N N 160 
DU  "C4'" "H4'"  sing N N 161 
DU  "O4'" "C1'"  sing N N 162 
DU  "C3'" "O3'"  sing N N 163 
DU  "C3'" "C2'"  sing N N 164 
DU  "C3'" "H3'"  sing N N 165 
DU  "O3'" "HO3'" sing N N 166 
DU  "C2'" "C1'"  sing N N 167 
DU  "C2'" "H2'"  sing N N 168 
DU  "C2'" "H2''" sing N N 169 
DU  "C1'" N1     sing N N 170 
DU  "C1'" "H1'"  sing N N 171 
DU  N1    C2     sing N N 172 
DU  N1    C6     sing N N 173 
DU  C2    O2     doub N N 174 
DU  C2    N3     sing N N 175 
DU  N3    C4     sing N N 176 
DU  N3    H3     sing N N 177 
DU  C4    O4     doub N N 178 
DU  C4    C5     sing N N 179 
DU  C5    C6     doub N N 180 
DU  C5    H5     sing N N 181 
DU  C6    H6     sing N N 182 
# 
loop_
_ndb_struct_conf_na.entry_id 
_ndb_struct_conf_na.feature 
1EL2 'double helix'         
1EL2 'parallel strands'     
1EL2 'mismatched base pair' 
1EL2 'internal loop'        
# 
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 DA  6  1_555 A DA 17 1_555 -6.524 4.507  1.856  52.219  2.176   -171.357 1 A_DA6:DA17_A  A 6  ? A 17 ? ?  ? 
1 A DU  16 1_555 A DA 18 1_555 -2.663 -3.236 -2.325 -35.188 -7.230  -118.685 2 A_DU16:DA18_A A 16 ? A 18 ? ?  2 
1 A 5CM 7  1_555 A DC 19 1_555 2.176  0.381  -0.708 -16.180 11.409  171.354  3 A_5CM7:DC19_A A 7  ? A 19 ? 14 2 
1 A DC  15 1_555 A DC 3  1_555 1.985  0.641  -0.367 0.214   0.597   175.644  4 A_DC15:DC3_A  A 15 ? A 3  ? 14 2 
1 A DC  8  1_555 A DC 20 1_555 1.903  0.509  0.063  -2.005  7.629   178.544  5 A_DC8:DC20_A  A 8  ? A 20 ? 14 2 
1 A DC  14 1_555 A DC 2  1_555 -2.036 -1.724 -0.117 -0.782  -12.816 -179.923 6 A_DC14:DC2_A  A 14 ? A 2  ? 15 2 
1 A DC  9  1_555 A DC 21 1_555 1.991  1.317  -0.421 1.615   6.615   178.696  7 A_DC9:DC21_A  A 9  ? A 21 ? 15 2 
1 A DC  13 1_555 A DC 1  1_555 -1.982 -1.193 0.346  9.751   -16.286 -176.670 8 A_DC13:DC1_A  A 13 ? A 1  ? 15 2 
1 A DA  11 1_555 A DT 22 1_555 -0.125 -3.597 2.380  -31.617 4.562   -99.351  9 A_DA11:DT22_A A 11 ? 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 DA  6  1_555 A DA 17 1_555 A DU  16 1_555 A DA 18 1_555 0.035  -0.237 4.372  23.203   -12.040  118.497  0.018  0.279  4.352  
-6.963  -13.419 120.256  1 AA_DA6DU16:DA18DA17_AA  A 6  ? A 17 ? A 16 ? A 18 ? 
1 A DU  16 1_555 A DA 18 1_555 A 5CM 7  1_555 A DC 19 1_555 -1.620 0.762  2.982  23.661   1.750    146.855  0.390  0.937  2.881  
0.912   -12.328 147.583  2 AA_DU165CM7:DC19DA18_AA A 16 ? A 18 ? A 7  ? A 19 ? 
1 A 5CM 7  1_555 A DC 19 1_555 A DC  15 1_555 A DC 3  1_555 2.050  -2.789 0.647  -111.816 -130.520 -153.935 1.442  0.984  0.454  
65.339  -55.976 -178.167 3 AA_5CM7DC15:DC3DC19_AA  A 7  ? A 19 ? A 15 ? A 3  ? 
1 A DC  15 1_555 A DC 3  1_555 A DC  8  1_555 A DC 20 1_555 1.592  -2.198 -1.267 135.337  102.567  73.995   -0.789 -1.211 -0.811 
52.506  -69.281 171.867  4 AA_DC15DC8:DC20DC3_AA   A 15 ? A 3  ? A 8  ? A 20 ? 
1 A DC  8  1_555 A DC 20 1_555 A DC  14 1_555 A DC 2  1_555 -2.697 -2.569 -0.638 -126.496 122.196  34.784   -1.112 1.530  -0.043 
62.102  64.287  176.066  5 AA_DC8DC14:DC2DC20_AA   A 8  ? A 20 ? A 14 ? A 2  ? 
1 A DC  14 1_555 A DC 2  1_555 A DC  9  1_555 A DC 21 1_555 -2.402 -0.945 -0.830 106.553  -142.952 32.699   -0.987 0.818  -0.884 
-71.967 -53.643 178.363  6 AA_DC14DC9:DC21DC2_AA   A 14 ? A 2  ? A 9  ? A 21 ? 
1 A DC  9  1_555 A DC 21 1_555 A DC  13 1_555 A DC 1  1_555 -2.906 -2.738 0.139  -110.574 117.137  -134.450 1.352  -1.474 0.127  
-59.096 -55.785 -172.705 7 AA_DC9DC13:DC1DC21_AA   A 9  ? A 21 ? A 13 ? A 1  ? 
1 A DC  13 1_555 A DC 1  1_555 A DA  11 1_555 A DT 22 1_555 0.540  -5.411 -1.680 134.667  30.069   -5.530   3.021  -0.265 0.565  
-19.381 86.801  -138.035 8 AA_DC13DA11:DT22DC1_AA  A 13 ? A 1  ? A 11 ? A 22 ? 
# 
loop_
_pdbx_nmr_spectrometer.spectrometer_id 
_pdbx_nmr_spectrometer.type 
_pdbx_nmr_spectrometer.manufacturer 
_pdbx_nmr_spectrometer.model 
_pdbx_nmr_spectrometer.field_strength 
1 ? Varian INOVA  500 
2 ? Bruker AVANCE 800 
# 
_atom_sites.entry_id                    1EL2 
_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_