data_1MK0
# 
_entry.id   1MK0 
# 
_audit_conform.dict_name       mmcif_pdbx.dic 
_audit_conform.dict_version    5.351 
_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   1MK0         pdb_00001mk0 10.2210/pdb1mk0/pdb 
RCSB  RCSB016968   ?            ?                   
WWPDB D_1000016968 ?            ?                   
# 
_pdbx_database_related.db_name        PDB 
_pdbx_database_related.db_id          1LN0 
_pdbx_database_related.details        'Structure of the Catalytic Domain of Homing Endonuclease I-TevI' 
_pdbx_database_related.content_type   unspecified 
# 
_pdbx_database_status.status_code                     REL 
_pdbx_database_status.entry_id                        1MK0 
_pdbx_database_status.recvd_initial_deposition_date   2002-08-28 
_pdbx_database_status.deposit_site                    RCSB 
_pdbx_database_status.process_site                    RCSB 
_pdbx_database_status.status_code_sf                  REL 
_pdbx_database_status.SG_entry                        . 
_pdbx_database_status.pdb_format_compatible           Y 
_pdbx_database_status.status_code_mr                  ? 
_pdbx_database_status.status_code_cs                  ? 
_pdbx_database_status.status_code_nmr_data            ? 
_pdbx_database_status.methods_development_category    ? 
# 
loop_
_audit_author.name 
_audit_author.pdbx_ordinal 
'Van Roey, P.'   1 
'Meehan, L.'     2 
'Kowalski, J.C.' 3 
'Belfort, M.'    4 
'Derbyshire, V.' 5 
# 
_citation.id                        primary 
_citation.title                     'Catalytic domain structure and hypothesis for function of GIY-YIG intron endonuclease I-TevI.' 
_citation.journal_abbrev            Nat.Struct.Biol. 
_citation.journal_volume            9 
_citation.page_first                806 
_citation.page_last                 811 
_citation.year                      2002 
_citation.journal_id_ASTM           NSBIEW 
_citation.country                   US 
_citation.journal_id_ISSN           1072-8368 
_citation.journal_id_CSD            2024 
_citation.book_publisher            ? 
_citation.pdbx_database_id_PubMed   12379841 
_citation.pdbx_database_id_DOI      ? 
# 
loop_
_citation_author.citation_id 
_citation_author.name 
_citation_author.ordinal 
_citation_author.identifier_ORCID 
primary 'Van Roey, P.'   1 ? 
primary 'Meehan, L.'     2 ? 
primary 'Kowalski, J.C.' 3 ? 
primary 'Belfort, M.'    4 ? 
primary 'Derbyshire, V.' 5 ? 
# 
_cell.entry_id           1MK0 
_cell.length_a           28.360 
_cell.length_b           39.430 
_cell.length_c           97.420 
_cell.angle_alpha        90.00 
_cell.angle_beta         90.00 
_cell.angle_gamma        90.00 
_cell.Z_PDB              4 
_cell.pdbx_unique_axis   ? 
# 
_symmetry.entry_id                         1MK0 
_symmetry.space_group_name_H-M             'P 21 21 21' 
_symmetry.pdbx_full_space_group_name_H-M   ? 
_symmetry.cell_setting                     ? 
_symmetry.Int_Tables_number                19 
# 
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     man 'Intron-associated endonuclease 1' 11406.057 1   3.1.-.- E75A 'catalytic domain (residues 1 to 97)' ? 
2 non-polymer syn 'CITRIC ACID'                      192.124   1   ?       ?    ?                                     ? 
3 non-polymer syn BETA-MERCAPTOETHANOL               78.133    1   ?       ?    ?                                     ? 
4 water       nat water                              18.015    189 ?       ?    ?                                     ? 
# 
_entity_name_com.entity_id   1 
_entity_name_com.name        'I-TevI, IRF protein' 
# 
_entity_poly.entity_id                      1 
_entity_poly.type                           'polypeptide(L)' 
_entity_poly.nstd_linkage                   no 
_entity_poly.nstd_monomer                   no 
_entity_poly.pdbx_seq_one_letter_code       
;MKSGIYQIKNTLNNKVYVGSAKDFEKRWKRHFKDLEKGCHSSIKLQRSFNKHGNVFECSILEEIPYEKDLIIERANFWIK
ELNSKINGYNIADATFG
;
_entity_poly.pdbx_seq_one_letter_code_can   
;MKSGIYQIKNTLNNKVYVGSAKDFEKRWKRHFKDLEKGCHSSIKLQRSFNKHGNVFECSILEEIPYEKDLIIERANFWIK
ELNSKINGYNIADATFG
;
_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  MET n 
1 2  LYS n 
1 3  SER n 
1 4  GLY n 
1 5  ILE n 
1 6  TYR n 
1 7  GLN n 
1 8  ILE n 
1 9  LYS n 
1 10 ASN n 
1 11 THR n 
1 12 LEU n 
1 13 ASN n 
1 14 ASN n 
1 15 LYS n 
1 16 VAL n 
1 17 TYR n 
1 18 VAL n 
1 19 GLY n 
1 20 SER n 
1 21 ALA n 
1 22 LYS n 
1 23 ASP n 
1 24 PHE n 
1 25 GLU n 
1 26 LYS n 
1 27 ARG n 
1 28 TRP n 
1 29 LYS n 
1 30 ARG n 
1 31 HIS n 
1 32 PHE n 
1 33 LYS n 
1 34 ASP n 
1 35 LEU n 
1 36 GLU n 
1 37 LYS n 
1 38 GLY n 
1 39 CYS n 
1 40 HIS n 
1 41 SER n 
1 42 SER n 
1 43 ILE n 
1 44 LYS n 
1 45 LEU n 
1 46 GLN n 
1 47 ARG n 
1 48 SER n 
1 49 PHE n 
1 50 ASN n 
1 51 LYS n 
1 52 HIS n 
1 53 GLY n 
1 54 ASN n 
1 55 VAL n 
1 56 PHE n 
1 57 GLU n 
1 58 CYS n 
1 59 SER n 
1 60 ILE n 
1 61 LEU n 
1 62 GLU n 
1 63 GLU n 
1 64 ILE n 
1 65 PRO n 
1 66 TYR n 
1 67 GLU n 
1 68 LYS n 
1 69 ASP n 
1 70 LEU n 
1 71 ILE n 
1 72 ILE n 
1 73 GLU n 
1 74 ARG n 
1 75 ALA n 
1 76 ASN n 
1 77 PHE n 
1 78 TRP n 
1 79 ILE n 
1 80 LYS n 
1 81 GLU n 
1 82 LEU n 
1 83 ASN n 
1 84 SER n 
1 85 LYS n 
1 86 ILE n 
1 87 ASN n 
1 88 GLY n 
1 89 TYR n 
1 90 ASN n 
1 91 ILE n 
1 92 ALA n 
1 93 ASP n 
1 94 ALA n 
1 95 THR n 
1 96 PHE n 
1 97 GLY n 
# 
_entity_src_gen.entity_id                          1 
_entity_src_gen.pdbx_src_id                        1 
_entity_src_gen.pdbx_alt_source_flag               sample 
_entity_src_gen.pdbx_seq_type                      ? 
_entity_src_gen.pdbx_beg_seq_num                   ? 
_entity_src_gen.pdbx_end_seq_num                   ? 
_entity_src_gen.gene_src_common_name               ? 
_entity_src_gen.gene_src_genus                     'T4-like viruses' 
_entity_src_gen.pdbx_gene_src_gene                 ? 
_entity_src_gen.gene_src_species                   'Enterobacteria phage T4 sensu lato' 
_entity_src_gen.gene_src_strain                    ? 
_entity_src_gen.gene_src_tissue                    ? 
_entity_src_gen.gene_src_tissue_fraction           ? 
_entity_src_gen.gene_src_details                   ? 
_entity_src_gen.pdbx_gene_src_fragment             ? 
_entity_src_gen.pdbx_gene_src_scientific_name      'Enterobacteria phage T4' 
_entity_src_gen.pdbx_gene_src_ncbi_taxonomy_id     10665 
_entity_src_gen.pdbx_gene_src_variant              ? 
_entity_src_gen.pdbx_gene_src_cell_line            ? 
_entity_src_gen.pdbx_gene_src_atcc                 ? 
_entity_src_gen.pdbx_gene_src_organ                ? 
_entity_src_gen.pdbx_gene_src_organelle            ? 
_entity_src_gen.pdbx_gene_src_cell                 ? 
_entity_src_gen.pdbx_gene_src_cellular_location    ? 
_entity_src_gen.host_org_common_name               ? 
_entity_src_gen.pdbx_host_org_scientific_name      'Escherichia coli' 
_entity_src_gen.pdbx_host_org_ncbi_taxonomy_id     562 
_entity_src_gen.host_org_genus                     Escherichia 
_entity_src_gen.pdbx_host_org_gene                 ? 
_entity_src_gen.pdbx_host_org_organ                ? 
_entity_src_gen.host_org_species                   ? 
_entity_src_gen.pdbx_host_org_tissue               ? 
_entity_src_gen.pdbx_host_org_tissue_fraction      ? 
_entity_src_gen.pdbx_host_org_strain               ? 
_entity_src_gen.pdbx_host_org_variant              ? 
_entity_src_gen.pdbx_host_org_cell_line            ? 
_entity_src_gen.pdbx_host_org_atcc                 ? 
_entity_src_gen.pdbx_host_org_culture_collection   ? 
_entity_src_gen.pdbx_host_org_cell                 ? 
_entity_src_gen.pdbx_host_org_organelle            ? 
_entity_src_gen.pdbx_host_org_cellular_location    ? 
_entity_src_gen.pdbx_host_org_vector_type          ? 
_entity_src_gen.pdbx_host_org_vector               ? 
_entity_src_gen.host_org_details                   ? 
_entity_src_gen.expression_system_id               ? 
_entity_src_gen.plasmid_name                       ? 
_entity_src_gen.plasmid_details                    ? 
_entity_src_gen.pdbx_description                   ? 
# 
_struct_ref.id                         1 
_struct_ref.db_name                    UNP 
_struct_ref.db_code                    TEV1_BPT4 
_struct_ref.entity_id                  1 
_struct_ref.pdbx_seq_one_letter_code   
;MKSGIYQIKNTLNNKVYVGSAKDFEKRWKRHFKDLEKGCHSSIKLQRSFNKHGNVFECSILEEIPYEKDLIIERENFWIK
ELNSKINGYNIADATFG
;
_struct_ref.pdbx_align_begin           1 
_struct_ref.pdbx_db_accession          P13299 
_struct_ref.pdbx_db_isoform            ? 
# 
_struct_ref_seq.align_id                      1 
_struct_ref_seq.ref_id                        1 
_struct_ref_seq.pdbx_PDB_id_code              1MK0 
_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                 97 
_struct_ref_seq.pdbx_seq_align_end_ins_code   ? 
_struct_ref_seq.pdbx_db_accession             P13299 
_struct_ref_seq.db_align_beg                  1 
_struct_ref_seq.pdbx_db_align_beg_ins_code    ? 
_struct_ref_seq.db_align_end                  97 
_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       97 
# 
_struct_ref_seq_dif.align_id                     1 
_struct_ref_seq_dif.pdbx_pdb_id_code             1MK0 
_struct_ref_seq_dif.mon_id                       ALA 
_struct_ref_seq_dif.pdbx_pdb_strand_id           A 
_struct_ref_seq_dif.seq_num                      75 
_struct_ref_seq_dif.pdbx_pdb_ins_code            ? 
_struct_ref_seq_dif.pdbx_seq_db_name             UNP 
_struct_ref_seq_dif.pdbx_seq_db_accession_code   P13299 
_struct_ref_seq_dif.db_mon_id                    GLU 
_struct_ref_seq_dif.pdbx_seq_db_seq_num          75 
_struct_ref_seq_dif.details                      'engineered mutation' 
_struct_ref_seq_dif.pdbx_auth_seq_num            75 
_struct_ref_seq_dif.pdbx_ordinal                 1 
# 
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 
ALA 'L-peptide linking' y ALANINE              ? 'C3 H7 N O2'     89.093  
ARG 'L-peptide linking' y ARGININE             ? 'C6 H15 N4 O2 1' 175.209 
ASN 'L-peptide linking' y ASPARAGINE           ? 'C4 H8 N2 O3'    132.118 
ASP 'L-peptide linking' y 'ASPARTIC ACID'      ? 'C4 H7 N O4'     133.103 
BME non-polymer         . BETA-MERCAPTOETHANOL ? 'C2 H6 O S'      78.133  
CIT non-polymer         . 'CITRIC ACID'        ? 'C6 H8 O7'       192.124 
CYS 'L-peptide linking' y CYSTEINE             ? 'C3 H7 N O2 S'   121.158 
GLN 'L-peptide linking' y GLUTAMINE            ? 'C5 H10 N2 O3'   146.144 
GLU 'L-peptide linking' y 'GLUTAMIC ACID'      ? 'C5 H9 N O4'     147.129 
GLY 'peptide linking'   y GLYCINE              ? 'C2 H5 N O2'     75.067  
HIS 'L-peptide linking' y HISTIDINE            ? 'C6 H10 N3 O2 1' 156.162 
HOH non-polymer         . WATER                ? 'H2 O'           18.015  
ILE 'L-peptide linking' y ISOLEUCINE           ? 'C6 H13 N O2'    131.173 
LEU 'L-peptide linking' y LEUCINE              ? 'C6 H13 N O2'    131.173 
LYS 'L-peptide linking' y LYSINE               ? 'C6 H15 N2 O2 1' 147.195 
MET 'L-peptide linking' y METHIONINE           ? 'C5 H11 N O2 S'  149.211 
PHE 'L-peptide linking' y PHENYLALANINE        ? 'C9 H11 N O2'    165.189 
PRO 'L-peptide linking' y PROLINE              ? 'C5 H9 N O2'     115.130 
SER 'L-peptide linking' y SERINE               ? 'C3 H7 N O3'     105.093 
THR 'L-peptide linking' y THREONINE            ? 'C4 H9 N O3'     119.119 
TRP 'L-peptide linking' y TRYPTOPHAN           ? 'C11 H12 N2 O2'  204.225 
TYR 'L-peptide linking' y TYROSINE             ? 'C9 H11 N O3'    181.189 
VAL 'L-peptide linking' y VALINE               ? 'C5 H11 N O2'    117.146 
# 
_exptl.entry_id          1MK0 
_exptl.method            'X-RAY DIFFRACTION' 
_exptl.crystals_number   1 
# 
_exptl_crystal.id                    1 
_exptl_crystal.density_meas          ? 
_exptl_crystal.density_percent_sol   48.48 
_exptl_crystal.density_Matthews      2.39 
_exptl_crystal.description           ? 
# 
_exptl_crystal_grow.crystal_id      1 
_exptl_crystal_grow.method          'VAPOR DIFFUSION, HANGING DROP' 
_exptl_crystal_grow.temp            283 
_exptl_crystal_grow.temp_details    ? 
_exptl_crystal_grow.pH              6.5 
_exptl_crystal_grow.pdbx_details    '1.6 M sodium citrate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 283K' 
_exptl_crystal_grow.pdbx_pH_range   . 
# 
_diffrn.id                     1 
_diffrn.ambient_temp           100 
_diffrn.ambient_temp_details   ? 
_diffrn.crystal_id             1 
# 
_diffrn_detector.diffrn_id              1 
_diffrn_detector.detector               CCD 
_diffrn_detector.type                   'BRANDEIS - B1.2' 
_diffrn_detector.pdbx_collection_date   2002-07-11 
_diffrn_detector.details                ? 
# 
_diffrn_radiation.diffrn_id                        1 
_diffrn_radiation.wavelength_id                    1 
_diffrn_radiation.monochromator                    ? 
_diffrn_radiation.pdbx_monochromatic_or_laue_m_l   M 
_diffrn_radiation.pdbx_diffrn_protocol             'SINGLE WAVELENGTH' 
_diffrn_radiation.pdbx_scattering_type             x-ray 
# 
_diffrn_radiation_wavelength.id           1 
_diffrn_radiation_wavelength.wavelength   1.00 
_diffrn_radiation_wavelength.wt           1.0 
# 
_diffrn_source.diffrn_id                   1 
_diffrn_source.source                      SYNCHROTRON 
_diffrn_source.type                        'NSLS BEAMLINE X12C' 
_diffrn_source.pdbx_synchrotron_site       NSLS 
_diffrn_source.pdbx_synchrotron_beamline   X12C 
_diffrn_source.pdbx_wavelength             ? 
_diffrn_source.pdbx_wavelength_list        1.00 
# 
_reflns.entry_id                     1MK0 
_reflns.observed_criterion_sigma_I   -3 
_reflns.observed_criterion_sigma_F   0. 
_reflns.d_resolution_low             50. 
_reflns.d_resolution_high            1.6 
_reflns.number_obs                   15342 
_reflns.number_all                   15342 
_reflns.percent_possible_obs         99.7 
_reflns.pdbx_Rmerge_I_obs            0.0340000 
_reflns.pdbx_Rsym_value              ? 
_reflns.pdbx_netI_over_sigmaI        84. 
_reflns.B_iso_Wilson_estimate        16.7 
_reflns.pdbx_redundancy              9.0 
_reflns.R_free_details               ? 
_reflns.limit_h_max                  ? 
_reflns.limit_h_min                  ? 
_reflns.limit_k_max                  ? 
_reflns.limit_k_min                  ? 
_reflns.limit_l_max                  ? 
_reflns.limit_l_min                  ? 
_reflns.observed_criterion_F_max     ? 
_reflns.observed_criterion_F_min     ? 
_reflns.pdbx_diffrn_id               1 
_reflns.pdbx_ordinal                 1 
# 
_reflns_shell.d_res_high             1.60 
_reflns_shell.d_res_low              1.65 
_reflns_shell.percent_possible_all   98.3 
_reflns_shell.Rmerge_I_obs           0.0920000 
_reflns_shell.pdbx_Rsym_value        ? 
_reflns_shell.meanI_over_sigI_obs    12. 
_reflns_shell.pdbx_redundancy        6.5 
_reflns_shell.percent_possible_obs   ? 
_reflns_shell.number_unique_all      ? 
_reflns_shell.pdbx_diffrn_id         ? 
_reflns_shell.pdbx_ordinal           1 
# 
_refine.entry_id                                 1MK0 
_refine.ls_number_reflns_obs                     15030 
_refine.ls_number_reflns_all                     15342 
_refine.pdbx_ls_sigma_I                          ? 
_refine.pdbx_ls_sigma_F                          0 
_refine.pdbx_data_cutoff_high_absF               1085373.69 
_refine.pdbx_data_cutoff_low_absF                0 
_refine.ls_d_res_low                             36.55 
_refine.ls_d_res_high                            1.60 
_refine.ls_percent_reflns_obs                    99.6 
_refine.ls_R_factor_obs                          ? 
_refine.ls_R_factor_all                          ? 
_refine.ls_R_factor_R_work                       0.1970000 
_refine.ls_R_factor_R_free                       0.2160000 
_refine.ls_R_factor_R_free_error                 0.006 
_refine.ls_R_factor_R_free_error_details         ? 
_refine.ls_percent_reflns_R_free                 10.1 
_refine.ls_number_reflns_R_free                  1522 
_refine.ls_number_parameters                     ? 
_refine.ls_number_restraints                     ? 
_refine.occupancy_min                            ? 
_refine.occupancy_max                            ? 
_refine.correlation_coeff_Fo_to_Fc               ? 
_refine.correlation_coeff_Fo_to_Fc_free          ? 
_refine.B_iso_mean                               16.6 
_refine.aniso_B[1][1]                            -3.29 
_refine.aniso_B[2][2]                            5.08 
_refine.aniso_B[3][3]                            -1.80 
_refine.aniso_B[1][2]                            0.00 
_refine.aniso_B[1][3]                            0.00 
_refine.aniso_B[2][3]                            0.00 
_refine.solvent_model_details                    'FLAT MODEL' 
_refine.solvent_model_param_ksol                 0.393289 
_refine.solvent_model_param_bsol                 41.2046 
_refine.pdbx_solvent_vdw_probe_radii             ? 
_refine.pdbx_solvent_ion_probe_radii             ? 
_refine.pdbx_solvent_shrinkage_radii             ? 
_refine.pdbx_ls_cross_valid_method               THROUGHOUT 
_refine.details                                  ? 
_refine.pdbx_starting_model                      'pdb entry 1LN0' 
_refine.pdbx_method_to_determine_struct          'MOLECULAR REPLACEMENT' 
_refine.pdbx_isotropic_thermal_model             RESTRAINED 
_refine.pdbx_stereochemistry_target_values       'Engh & Huber' 
_refine.pdbx_stereochem_target_val_spec_case     ? 
_refine.pdbx_R_Free_selection_details            RANDOM 
_refine.pdbx_overall_ESU_R_Free                  ? 
_refine.overall_SU_B                             ? 
_refine.ls_redundancy_reflns_obs                 ? 
_refine.B_iso_min                                ? 
_refine.B_iso_max                                ? 
_refine.overall_SU_R_Cruickshank_DPI             ? 
_refine.overall_SU_R_free                        ? 
_refine.overall_SU_ML                            ? 
_refine.pdbx_overall_ESU_R                       ? 
_refine.pdbx_data_cutoff_high_rms_absF           ? 
_refine.pdbx_refine_id                           'X-RAY DIFFRACTION' 
_refine.pdbx_diffrn_id                           1 
_refine.pdbx_TLS_residual_ADP_flag               ? 
_refine.pdbx_overall_phase_error                 ? 
_refine.pdbx_overall_SU_R_free_Cruickshank_DPI   ? 
_refine.pdbx_overall_SU_R_Blow_DPI               ? 
_refine.pdbx_overall_SU_R_free_Blow_DPI          ? 
# 
_refine_analyze.entry_id                        1MK0 
_refine_analyze.Luzzati_coordinate_error_obs    ? 
_refine_analyze.Luzzati_sigma_a_obs             ? 
_refine_analyze.Luzzati_d_res_low_obs           ? 
_refine_analyze.Luzzati_coordinate_error_free   0.21 
_refine_analyze.Luzzati_sigma_a_free            0.11 
_refine_analyze.Luzzati_d_res_low_free          ? 
_refine_analyze.number_disordered_residues      ? 
_refine_analyze.occupancy_sum_hydrogen          ? 
_refine_analyze.occupancy_sum_non_hydrogen      ? 
_refine_analyze.pdbx_Luzzati_d_res_high_obs     ? 
_refine_analyze.pdbx_refine_id                  'X-RAY DIFFRACTION' 
# 
_refine_hist.pdbx_refine_id                   'X-RAY DIFFRACTION' 
_refine_hist.cycle_id                         LAST 
_refine_hist.pdbx_number_atoms_protein        804 
_refine_hist.pdbx_number_atoms_nucleic_acid   0 
_refine_hist.pdbx_number_atoms_ligand         16 
_refine_hist.number_atoms_solvent             189 
_refine_hist.number_atoms_total               1009 
_refine_hist.d_res_high                       1.60 
_refine_hist.d_res_low                        36.55 
# 
loop_
_refine_ls_restr.type 
_refine_ls_restr.dev_ideal 
_refine_ls_restr.dev_ideal_target 
_refine_ls_restr.weight 
_refine_ls_restr.number 
_refine_ls_restr.pdbx_refine_id 
_refine_ls_restr.pdbx_restraint_function 
c_bond_d           0.004 ?    ? ? 'X-RAY DIFFRACTION' ? 
c_angle_deg        1.3   ?    ? ? 'X-RAY DIFFRACTION' ? 
c_dihedral_angle_d 21.7  ?    ? ? 'X-RAY DIFFRACTION' ? 
c_improper_angle_d 0.67  ?    ? ? 'X-RAY DIFFRACTION' ? 
c_mcbond_it        1.06  1.50 ? ? 'X-RAY DIFFRACTION' ? 
c_mcangle_it       1.58  2.00 ? ? 'X-RAY DIFFRACTION' ? 
c_scbond_it        2.57  2.00 ? ? 'X-RAY DIFFRACTION' ? 
c_scangle_it       3.21  2.50 ? ? 'X-RAY DIFFRACTION' ? 
# 
_refine_ls_shell.pdbx_total_number_of_bins_used   6 
_refine_ls_shell.d_res_high                       1.60 
_refine_ls_shell.d_res_low                        1.70 
_refine_ls_shell.number_reflns_R_work             2191 
_refine_ls_shell.R_factor_R_work                  0.2290000 
_refine_ls_shell.percent_reflns_obs               98.8 
_refine_ls_shell.R_factor_R_free                  0.2620000 
_refine_ls_shell.R_factor_R_free_error            0.017 
_refine_ls_shell.percent_reflns_R_free            9.8 
_refine_ls_shell.number_reflns_R_free             237 
_refine_ls_shell.number_reflns_obs                ? 
_refine_ls_shell.redundancy_reflns_obs            ? 
_refine_ls_shell.number_reflns_all                ? 
_refine_ls_shell.pdbx_refine_id                   'X-RAY DIFFRACTION' 
_refine_ls_shell.R_factor_all                     ? 
# 
loop_
_pdbx_xplor_file.serial_no 
_pdbx_xplor_file.param_file 
_pdbx_xplor_file.topol_file 
_pdbx_xplor_file.pdbx_refine_id 
1 PROTEIN_REP.PARAM PROTEIN.TOP   'X-RAY DIFFRACTION' 
2 WATER_REP.PARAM   WATER.TOP     'X-RAY DIFFRACTION' 
3 ION.PARAM         ION.TOP       'X-RAY DIFFRACTION' 
4 CIT_PAR.PARAM     CIT_TOP.PARAM 'X-RAY DIFFRACTION' 
5 BME_PAR.PARAM     BME_TOP.PARAM 'X-RAY DIFFRACTION' 
# 
_struct.entry_id                  1MK0 
_struct.title                     'catalytic domain of intron endonuclease I-TevI, E75A mutant' 
_struct.pdbx_model_details        ? 
_struct.pdbx_CASP_flag            ? 
_struct.pdbx_model_type_details   ? 
# 
_struct_keywords.entry_id        1MK0 
_struct_keywords.pdbx_keywords   HYDROLASE 
_struct_keywords.text            'alpha/beta fold; CATALYTIC DOMAIN; DNA-BINDING SURFACE, HYDROLASE' 
# 
loop_
_struct_asym.id 
_struct_asym.pdbx_blank_PDB_chainid_flag 
_struct_asym.pdbx_modified 
_struct_asym.entity_id 
_struct_asym.details 
A N N 1 ? 
B N N 2 ? 
C N N 3 ? 
D N N 4 ? 
# 
_struct_biol.id                    1 
_struct_biol.pdbx_parent_biol_id   ? 
_struct_biol.details               ? 
# 
loop_
_struct_conf.conf_type_id 
_struct_conf.id 
_struct_conf.pdbx_PDB_helix_id 
_struct_conf.beg_label_comp_id 
_struct_conf.beg_label_asym_id 
_struct_conf.beg_label_seq_id 
_struct_conf.pdbx_beg_PDB_ins_code 
_struct_conf.end_label_comp_id 
_struct_conf.end_label_asym_id 
_struct_conf.end_label_seq_id 
_struct_conf.pdbx_end_PDB_ins_code 
_struct_conf.beg_auth_comp_id 
_struct_conf.beg_auth_asym_id 
_struct_conf.beg_auth_seq_id 
_struct_conf.end_auth_comp_id 
_struct_conf.end_auth_asym_id 
_struct_conf.end_auth_seq_id 
_struct_conf.pdbx_PDB_helix_class 
_struct_conf.details 
_struct_conf.pdbx_PDB_helix_length 
HELX_P HELX_P1 1 ASP A 23 ? GLY A 38 ? ASP A 23 GLY A 38 1 ? 16 
HELX_P HELX_P2 2 SER A 42 ? GLY A 53 ? SER A 42 GLY A 53 1 ? 12 
HELX_P HELX_P3 3 GLU A 67 ? LEU A 82 ? GLU A 67 LEU A 82 1 ? 16 
# 
_struct_conf_type.id          HELX_P 
_struct_conf_type.criteria    ? 
_struct_conf_type.reference   ? 
# 
_struct_conn.id                            covale1 
_struct_conn.conn_type_id                  covale 
_struct_conn.pdbx_leaving_atom_flag        none 
_struct_conn.pdbx_PDB_id                   ? 
_struct_conn.ptnr1_label_asym_id           A 
_struct_conn.ptnr1_label_comp_id           CYS 
_struct_conn.ptnr1_label_seq_id            39 
_struct_conn.ptnr1_label_atom_id           SG 
_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                1_555 
_struct_conn.ptnr2_label_asym_id           C 
_struct_conn.ptnr2_label_comp_id           BME 
_struct_conn.ptnr2_label_seq_id            . 
_struct_conn.ptnr2_label_atom_id           S2 
_struct_conn.pdbx_ptnr2_label_alt_id       ? 
_struct_conn.pdbx_ptnr2_PDB_ins_code       ? 
_struct_conn.ptnr1_auth_asym_id            A 
_struct_conn.ptnr1_auth_comp_id            CYS 
_struct_conn.ptnr1_auth_seq_id             39 
_struct_conn.ptnr2_auth_asym_id            A 
_struct_conn.ptnr2_auth_comp_id            BME 
_struct_conn.ptnr2_auth_seq_id             401 
_struct_conn.ptnr2_symmetry                1_555 
_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                       'DISULFIDE BRIDGE' 
_struct_conn.pdbx_dist_value               2.024 
_struct_conn.pdbx_value_order              ? 
_struct_conn.pdbx_role                     ? 
# 
_struct_conn_type.id          covale 
_struct_conn_type.criteria    ? 
_struct_conn_type.reference   ? 
# 
_struct_sheet.id               A 
_struct_sheet.type             ? 
_struct_sheet.number_strands   3 
_struct_sheet.details          ? 
# 
loop_
_struct_sheet_order.sheet_id 
_struct_sheet_order.range_id_1 
_struct_sheet_order.range_id_2 
_struct_sheet_order.offset 
_struct_sheet_order.sense 
A 1 2 ? anti-parallel 
A 2 3 ? anti-parallel 
# 
loop_
_struct_sheet_range.sheet_id 
_struct_sheet_range.id 
_struct_sheet_range.beg_label_comp_id 
_struct_sheet_range.beg_label_asym_id 
_struct_sheet_range.beg_label_seq_id 
_struct_sheet_range.pdbx_beg_PDB_ins_code 
_struct_sheet_range.end_label_comp_id 
_struct_sheet_range.end_label_asym_id 
_struct_sheet_range.end_label_seq_id 
_struct_sheet_range.pdbx_end_PDB_ins_code 
_struct_sheet_range.beg_auth_comp_id 
_struct_sheet_range.beg_auth_asym_id 
_struct_sheet_range.beg_auth_seq_id 
_struct_sheet_range.end_auth_comp_id 
_struct_sheet_range.end_auth_asym_id 
_struct_sheet_range.end_auth_seq_id 
A 1 VAL A 16 ? ALA A 21 ? VAL A 16 ALA A 21 
A 2 GLY A 4  ? ASN A 10 ? GLY A 4  ASN A 10 
A 3 PHE A 56 ? GLU A 63 ? PHE A 56 GLU A 63 
# 
loop_
_pdbx_struct_sheet_hbond.sheet_id 
_pdbx_struct_sheet_hbond.range_id_1 
_pdbx_struct_sheet_hbond.range_id_2 
_pdbx_struct_sheet_hbond.range_1_label_atom_id 
_pdbx_struct_sheet_hbond.range_1_label_comp_id 
_pdbx_struct_sheet_hbond.range_1_label_asym_id 
_pdbx_struct_sheet_hbond.range_1_label_seq_id 
_pdbx_struct_sheet_hbond.range_1_PDB_ins_code 
_pdbx_struct_sheet_hbond.range_1_auth_atom_id 
_pdbx_struct_sheet_hbond.range_1_auth_comp_id 
_pdbx_struct_sheet_hbond.range_1_auth_asym_id 
_pdbx_struct_sheet_hbond.range_1_auth_seq_id 
_pdbx_struct_sheet_hbond.range_2_label_atom_id 
_pdbx_struct_sheet_hbond.range_2_label_comp_id 
_pdbx_struct_sheet_hbond.range_2_label_asym_id 
_pdbx_struct_sheet_hbond.range_2_label_seq_id 
_pdbx_struct_sheet_hbond.range_2_PDB_ins_code 
_pdbx_struct_sheet_hbond.range_2_auth_atom_id 
_pdbx_struct_sheet_hbond.range_2_auth_comp_id 
_pdbx_struct_sheet_hbond.range_2_auth_asym_id 
_pdbx_struct_sheet_hbond.range_2_auth_seq_id 
A 1 2 O GLY A 19 ? O GLY A 19 N TYR A 6  ? N TYR A 6  
A 2 3 N LYS A 9  ? N LYS A 9  O GLU A 57 ? O GLU A 57 
# 
loop_
_struct_site.id 
_struct_site.pdbx_evidence_code 
_struct_site.pdbx_auth_asym_id 
_struct_site.pdbx_auth_comp_id 
_struct_site.pdbx_auth_seq_id 
_struct_site.pdbx_auth_ins_code 
_struct_site.pdbx_num_residues 
_struct_site.details 
AC1 Software A CIT 300 ? 16 'BINDING SITE FOR RESIDUE CIT A 300' 
AC2 Software A BME 401 ? 6  'BINDING SITE FOR RESIDUE BME A 401' 
# 
loop_
_struct_site_gen.id 
_struct_site_gen.site_id 
_struct_site_gen.pdbx_num_res 
_struct_site_gen.label_comp_id 
_struct_site_gen.label_asym_id 
_struct_site_gen.label_seq_id 
_struct_site_gen.pdbx_auth_ins_code 
_struct_site_gen.auth_comp_id 
_struct_site_gen.auth_asym_id 
_struct_site_gen.auth_seq_id 
_struct_site_gen.label_atom_id 
_struct_site_gen.label_alt_id 
_struct_site_gen.symmetry 
_struct_site_gen.details 
1  AC1 16 TYR A 6  ? TYR A 6   . ? 1_555 ? 
2  AC1 16 TYR A 17 ? TYR A 17  . ? 1_555 ? 
3  AC1 16 GLY A 19 ? GLY A 19  . ? 1_555 ? 
4  AC1 16 SER A 20 ? SER A 20  . ? 1_555 ? 
5  AC1 16 ARG A 27 ? ARG A 27  . ? 1_555 ? 
6  AC1 16 HIS A 31 ? HIS A 31  . ? 1_555 ? 
7  AC1 16 ALA A 94 ? ALA A 94  . ? 1_555 ? 
8  AC1 16 THR A 95 ? THR A 95  . ? 1_555 ? 
9  AC1 16 HOH D .  ? HOH A 403 . ? 1_555 ? 
10 AC1 16 HOH D .  ? HOH A 404 . ? 1_555 ? 
11 AC1 16 HOH D .  ? HOH A 419 . ? 1_555 ? 
12 AC1 16 HOH D .  ? HOH A 422 . ? 1_555 ? 
13 AC1 16 HOH D .  ? HOH A 484 . ? 1_555 ? 
14 AC1 16 HOH D .  ? HOH A 495 . ? 1_555 ? 
15 AC1 16 HOH D .  ? HOH A 511 . ? 1_555 ? 
16 AC1 16 HOH D .  ? HOH A 529 . ? 1_555 ? 
17 AC2 6  ASP A 34 ? ASP A 34  . ? 1_555 ? 
18 AC2 6  LYS A 37 ? LYS A 37  . ? 1_555 ? 
19 AC2 6  CYS A 39 ? CYS A 39  . ? 1_555 ? 
20 AC2 6  LEU A 61 ? LEU A 61  . ? 1_455 ? 
21 AC2 6  TRP A 78 ? TRP A 78  . ? 1_455 ? 
22 AC2 6  HOH D .  ? HOH A 420 . ? 1_455 ? 
# 
_database_PDB_matrix.entry_id          1MK0 
_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 
# 
_atom_sites.entry_id                    1MK0 
_atom_sites.fract_transf_matrix[1][1]   0.035261 
_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]   0.025361 
_atom_sites.fract_transf_matrix[2][3]   0.000000 
_atom_sites.fract_transf_matrix[3][1]   0.000000 
_atom_sites.fract_transf_matrix[3][2]   0.000000 
_atom_sites.fract_transf_matrix[3][3]   0.010265 
_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 
S 
# 
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  MET 1  1  1  MET MET A . n 
A 1 2  LYS 2  2  2  LYS LYS A . n 
A 1 3  SER 3  3  3  SER SER A . n 
A 1 4  GLY 4  4  4  GLY GLY A . n 
A 1 5  ILE 5  5  5  ILE ILE A . n 
A 1 6  TYR 6  6  6  TYR TYR A . n 
A 1 7  GLN 7  7  7  GLN GLN A . n 
A 1 8  ILE 8  8  8  ILE ILE A . n 
A 1 9  LYS 9  9  9  LYS LYS A . n 
A 1 10 ASN 10 10 10 ASN ASN A . n 
A 1 11 THR 11 11 11 THR THR A . n 
A 1 12 LEU 12 12 12 LEU LEU A . n 
A 1 13 ASN 13 13 13 ASN ASN A . n 
A 1 14 ASN 14 14 14 ASN ASN A . n 
A 1 15 LYS 15 15 15 LYS LYS A . n 
A 1 16 VAL 16 16 16 VAL VAL A . n 
A 1 17 TYR 17 17 17 TYR TYR A . n 
A 1 18 VAL 18 18 18 VAL VAL A . n 
A 1 19 GLY 19 19 19 GLY GLY A . n 
A 1 20 SER 20 20 20 SER SER A . n 
A 1 21 ALA 21 21 21 ALA ALA A . n 
A 1 22 LYS 22 22 22 LYS LYS A . n 
A 1 23 ASP 23 23 23 ASP ASP A . n 
A 1 24 PHE 24 24 24 PHE PHE A . n 
A 1 25 GLU 25 25 25 GLU GLU A . n 
A 1 26 LYS 26 26 26 LYS LYS A . n 
A 1 27 ARG 27 27 27 ARG ARG A . n 
A 1 28 TRP 28 28 28 TRP TRP A . n 
A 1 29 LYS 29 29 29 LYS LYS A . n 
A 1 30 ARG 30 30 30 ARG ARG A . n 
A 1 31 HIS 31 31 31 HIS HIS A . n 
A 1 32 PHE 32 32 32 PHE PHE A . n 
A 1 33 LYS 33 33 33 LYS LYS A . n 
A 1 34 ASP 34 34 34 ASP ASP A . n 
A 1 35 LEU 35 35 35 LEU LEU A . n 
A 1 36 GLU 36 36 36 GLU GLU A . n 
A 1 37 LYS 37 37 37 LYS LYS A . n 
A 1 38 GLY 38 38 38 GLY GLY A . n 
A 1 39 CYS 39 39 39 CYS CYS A . n 
A 1 40 HIS 40 40 40 HIS HIS A . n 
A 1 41 SER 41 41 41 SER SER A . n 
A 1 42 SER 42 42 42 SER SER A . n 
A 1 43 ILE 43 43 43 ILE ILE A . n 
A 1 44 LYS 44 44 44 LYS LYS A . n 
A 1 45 LEU 45 45 45 LEU LEU A . n 
A 1 46 GLN 46 46 46 GLN GLN A . n 
A 1 47 ARG 47 47 47 ARG ARG A . n 
A 1 48 SER 48 48 48 SER SER A . n 
A 1 49 PHE 49 49 49 PHE PHE A . n 
A 1 50 ASN 50 50 50 ASN ASN A . n 
A 1 51 LYS 51 51 51 LYS LYS A . n 
A 1 52 HIS 52 52 52 HIS HIS A . n 
A 1 53 GLY 53 53 53 GLY GLY A . n 
A 1 54 ASN 54 54 54 ASN ASN A . n 
A 1 55 VAL 55 55 55 VAL VAL A . n 
A 1 56 PHE 56 56 56 PHE PHE A . n 
A 1 57 GLU 57 57 57 GLU GLU A . n 
A 1 58 CYS 58 58 58 CYS CYS A . n 
A 1 59 SER 59 59 59 SER SER A . n 
A 1 60 ILE 60 60 60 ILE ILE A . n 
A 1 61 LEU 61 61 61 LEU LEU A . n 
A 1 62 GLU 62 62 62 GLU GLU A . n 
A 1 63 GLU 63 63 63 GLU GLU A . n 
A 1 64 ILE 64 64 64 ILE ILE A . n 
A 1 65 PRO 65 65 65 PRO PRO A . n 
A 1 66 TYR 66 66 66 TYR TYR A . n 
A 1 67 GLU 67 67 67 GLU GLU A . n 
A 1 68 LYS 68 68 68 LYS LYS A . n 
A 1 69 ASP 69 69 69 ASP ASP A . n 
A 1 70 LEU 70 70 70 LEU LEU A . n 
A 1 71 ILE 71 71 71 ILE ILE A . n 
A 1 72 ILE 72 72 72 ILE ILE A . n 
A 1 73 GLU 73 73 73 GLU GLU A . n 
A 1 74 ARG 74 74 74 ARG ARG A . n 
A 1 75 ALA 75 75 75 ALA ALA A . n 
A 1 76 ASN 76 76 76 ASN ASN A . n 
A 1 77 PHE 77 77 77 PHE PHE A . n 
A 1 78 TRP 78 78 78 TRP TRP A . n 
A 1 79 ILE 79 79 79 ILE ILE A . n 
A 1 80 LYS 80 80 80 LYS LYS A . n 
A 1 81 GLU 81 81 81 GLU GLU A . n 
A 1 82 LEU 82 82 82 LEU LEU A . n 
A 1 83 ASN 83 83 83 ASN ASN A . n 
A 1 84 SER 84 84 84 SER SER A . n 
A 1 85 LYS 85 85 85 LYS LYS A . n 
A 1 86 ILE 86 86 86 ILE ILE A . n 
A 1 87 ASN 87 87 87 ASN ASN A . n 
A 1 88 GLY 88 88 88 GLY GLY A . n 
A 1 89 TYR 89 89 89 TYR TYR A . n 
A 1 90 ASN 90 90 90 ASN ASN A . n 
A 1 91 ILE 91 91 91 ILE ILE A . n 
A 1 92 ALA 92 92 92 ALA ALA A . n 
A 1 93 ASP 93 93 93 ASP ASP A . n 
A 1 94 ALA 94 94 94 ALA ALA A . n 
A 1 95 THR 95 95 95 THR THR A . n 
A 1 96 PHE 96 96 96 PHE PHE A . n 
A 1 97 GLY 97 97 97 GLY GLY A . n 
# 
loop_
_pdbx_nonpoly_scheme.asym_id 
_pdbx_nonpoly_scheme.entity_id 
_pdbx_nonpoly_scheme.mon_id 
_pdbx_nonpoly_scheme.ndb_seq_num 
_pdbx_nonpoly_scheme.pdb_seq_num 
_pdbx_nonpoly_scheme.auth_seq_num 
_pdbx_nonpoly_scheme.pdb_mon_id 
_pdbx_nonpoly_scheme.auth_mon_id 
_pdbx_nonpoly_scheme.pdb_strand_id 
_pdbx_nonpoly_scheme.pdb_ins_code 
B 2 CIT 1   300 300 CIT CIT A . 
C 3 BME 1   401 401 BME BME A . 
D 4 HOH 1   402 1   HOH WAT A . 
D 4 HOH 2   403 2   HOH WAT A . 
D 4 HOH 3   404 3   HOH WAT A . 
D 4 HOH 4   405 4   HOH WAT A . 
D 4 HOH 5   406 5   HOH WAT A . 
D 4 HOH 6   407 6   HOH WAT A . 
D 4 HOH 7   408 7   HOH WAT A . 
D 4 HOH 8   409 8   HOH WAT A . 
D 4 HOH 9   410 9   HOH WAT A . 
D 4 HOH 10  411 10  HOH WAT A . 
D 4 HOH 11  412 11  HOH WAT A . 
D 4 HOH 12  413 12  HOH WAT A . 
D 4 HOH 13  414 13  HOH WAT A . 
D 4 HOH 14  415 14  HOH WAT A . 
D 4 HOH 15  416 15  HOH WAT A . 
D 4 HOH 16  417 16  HOH WAT A . 
D 4 HOH 17  418 17  HOH WAT A . 
D 4 HOH 18  419 18  HOH WAT A . 
D 4 HOH 19  420 19  HOH WAT A . 
D 4 HOH 20  421 20  HOH WAT A . 
D 4 HOH 21  422 21  HOH WAT A . 
D 4 HOH 22  423 22  HOH WAT A . 
D 4 HOH 23  424 23  HOH WAT A . 
D 4 HOH 24  425 24  HOH WAT A . 
D 4 HOH 25  426 25  HOH WAT A . 
D 4 HOH 26  427 26  HOH WAT A . 
D 4 HOH 27  428 27  HOH WAT A . 
D 4 HOH 28  429 28  HOH WAT A . 
D 4 HOH 29  430 29  HOH WAT A . 
D 4 HOH 30  431 30  HOH WAT A . 
D 4 HOH 31  432 31  HOH WAT A . 
D 4 HOH 32  433 32  HOH WAT A . 
D 4 HOH 33  434 33  HOH WAT A . 
D 4 HOH 34  435 34  HOH WAT A . 
D 4 HOH 35  436 35  HOH WAT A . 
D 4 HOH 36  437 36  HOH WAT A . 
D 4 HOH 37  438 37  HOH WAT A . 
D 4 HOH 38  439 38  HOH WAT A . 
D 4 HOH 39  440 39  HOH WAT A . 
D 4 HOH 40  441 40  HOH WAT A . 
D 4 HOH 41  442 41  HOH WAT A . 
D 4 HOH 42  443 42  HOH WAT A . 
D 4 HOH 43  444 43  HOH WAT A . 
D 4 HOH 44  445 44  HOH WAT A . 
D 4 HOH 45  446 45  HOH WAT A . 
D 4 HOH 46  447 46  HOH WAT A . 
D 4 HOH 47  448 47  HOH WAT A . 
D 4 HOH 48  449 48  HOH WAT A . 
D 4 HOH 49  450 49  HOH WAT A . 
D 4 HOH 50  451 50  HOH WAT A . 
D 4 HOH 51  452 51  HOH WAT A . 
D 4 HOH 52  453 52  HOH WAT A . 
D 4 HOH 53  454 53  HOH WAT A . 
D 4 HOH 54  455 54  HOH WAT A . 
D 4 HOH 55  456 55  HOH WAT A . 
D 4 HOH 56  457 56  HOH WAT A . 
D 4 HOH 57  458 57  HOH WAT A . 
D 4 HOH 58  459 58  HOH WAT A . 
D 4 HOH 59  460 59  HOH WAT A . 
D 4 HOH 60  461 60  HOH WAT A . 
D 4 HOH 61  462 61  HOH WAT A . 
D 4 HOH 62  463 62  HOH WAT A . 
D 4 HOH 63  464 63  HOH WAT A . 
D 4 HOH 64  465 64  HOH WAT A . 
D 4 HOH 65  466 65  HOH WAT A . 
D 4 HOH 66  467 66  HOH WAT A . 
D 4 HOH 67  468 67  HOH WAT A . 
D 4 HOH 68  469 68  HOH WAT A . 
D 4 HOH 69  470 69  HOH WAT A . 
D 4 HOH 70  471 70  HOH WAT A . 
D 4 HOH 71  472 71  HOH WAT A . 
D 4 HOH 72  473 73  HOH WAT A . 
D 4 HOH 73  474 74  HOH WAT A . 
D 4 HOH 74  475 75  HOH WAT A . 
D 4 HOH 75  476 76  HOH WAT A . 
D 4 HOH 76  477 77  HOH WAT A . 
D 4 HOH 77  478 78  HOH WAT A . 
D 4 HOH 78  479 79  HOH WAT A . 
D 4 HOH 79  480 80  HOH WAT A . 
D 4 HOH 80  481 81  HOH WAT A . 
D 4 HOH 81  482 82  HOH WAT A . 
D 4 HOH 82  483 83  HOH WAT A . 
D 4 HOH 83  484 84  HOH WAT A . 
D 4 HOH 84  485 85  HOH WAT A . 
D 4 HOH 85  486 86  HOH WAT A . 
D 4 HOH 86  487 87  HOH WAT A . 
D 4 HOH 87  488 88  HOH WAT A . 
D 4 HOH 88  489 89  HOH WAT A . 
D 4 HOH 89  490 90  HOH WAT A . 
D 4 HOH 90  491 91  HOH WAT A . 
D 4 HOH 91  492 92  HOH WAT A . 
D 4 HOH 92  493 93  HOH WAT A . 
D 4 HOH 93  494 94  HOH WAT A . 
D 4 HOH 94  495 95  HOH WAT A . 
D 4 HOH 95  496 96  HOH WAT A . 
D 4 HOH 96  497 97  HOH WAT A . 
D 4 HOH 97  498 98  HOH WAT A . 
D 4 HOH 98  499 99  HOH WAT A . 
D 4 HOH 99  500 100 HOH WAT A . 
D 4 HOH 100 501 101 HOH WAT A . 
D 4 HOH 101 502 102 HOH WAT A . 
D 4 HOH 102 503 103 HOH WAT A . 
D 4 HOH 103 504 104 HOH WAT A . 
D 4 HOH 104 505 105 HOH WAT A . 
D 4 HOH 105 506 106 HOH WAT A . 
D 4 HOH 106 507 107 HOH WAT A . 
D 4 HOH 107 508 108 HOH WAT A . 
D 4 HOH 108 509 109 HOH WAT A . 
D 4 HOH 109 510 110 HOH WAT A . 
D 4 HOH 110 511 111 HOH WAT A . 
D 4 HOH 111 512 112 HOH WAT A . 
D 4 HOH 112 513 113 HOH WAT A . 
D 4 HOH 113 514 114 HOH WAT A . 
D 4 HOH 114 515 115 HOH WAT A . 
D 4 HOH 115 516 116 HOH WAT A . 
D 4 HOH 116 517 117 HOH WAT A . 
D 4 HOH 117 518 118 HOH WAT A . 
D 4 HOH 118 519 119 HOH WAT A . 
D 4 HOH 119 520 120 HOH WAT A . 
D 4 HOH 120 521 121 HOH WAT A . 
D 4 HOH 121 522 122 HOH WAT A . 
D 4 HOH 122 523 123 HOH WAT A . 
D 4 HOH 123 524 124 HOH WAT A . 
D 4 HOH 124 525 125 HOH WAT A . 
D 4 HOH 125 526 126 HOH WAT A . 
D 4 HOH 126 527 127 HOH WAT A . 
D 4 HOH 127 528 128 HOH WAT A . 
D 4 HOH 128 529 129 HOH WAT A . 
D 4 HOH 129 530 130 HOH WAT A . 
D 4 HOH 130 531 131 HOH WAT A . 
D 4 HOH 131 532 132 HOH WAT A . 
D 4 HOH 132 533 133 HOH WAT A . 
D 4 HOH 133 534 134 HOH WAT A . 
D 4 HOH 134 535 135 HOH WAT A . 
D 4 HOH 135 536 136 HOH WAT A . 
D 4 HOH 136 537 137 HOH WAT A . 
D 4 HOH 137 538 138 HOH WAT A . 
D 4 HOH 138 539 139 HOH WAT A . 
D 4 HOH 139 540 140 HOH WAT A . 
D 4 HOH 140 541 141 HOH WAT A . 
D 4 HOH 141 542 142 HOH WAT A . 
D 4 HOH 142 543 143 HOH WAT A . 
D 4 HOH 143 544 144 HOH WAT A . 
D 4 HOH 144 545 146 HOH WAT A . 
D 4 HOH 145 546 147 HOH WAT A . 
D 4 HOH 146 547 148 HOH WAT A . 
D 4 HOH 147 548 149 HOH WAT A . 
D 4 HOH 148 549 150 HOH WAT A . 
D 4 HOH 149 550 151 HOH WAT A . 
D 4 HOH 150 551 152 HOH WAT A . 
D 4 HOH 151 552 153 HOH WAT A . 
D 4 HOH 152 553 154 HOH WAT A . 
D 4 HOH 153 554 155 HOH WAT A . 
D 4 HOH 154 555 156 HOH WAT A . 
D 4 HOH 155 556 157 HOH WAT A . 
D 4 HOH 156 557 158 HOH WAT A . 
D 4 HOH 157 558 159 HOH WAT A . 
D 4 HOH 158 559 160 HOH WAT A . 
D 4 HOH 159 560 161 HOH WAT A . 
D 4 HOH 160 561 162 HOH WAT A . 
D 4 HOH 161 562 163 HOH WAT A . 
D 4 HOH 162 563 164 HOH WAT A . 
D 4 HOH 163 564 165 HOH WAT A . 
D 4 HOH 164 565 166 HOH WAT A . 
D 4 HOH 165 566 167 HOH WAT A . 
D 4 HOH 166 567 168 HOH WAT A . 
D 4 HOH 167 568 169 HOH WAT A . 
D 4 HOH 168 569 170 HOH WAT A . 
D 4 HOH 169 570 172 HOH WAT A . 
D 4 HOH 170 571 173 HOH WAT A . 
D 4 HOH 171 572 174 HOH WAT A . 
D 4 HOH 172 573 175 HOH WAT A . 
D 4 HOH 173 574 176 HOH WAT A . 
D 4 HOH 174 575 177 HOH WAT A . 
D 4 HOH 175 576 178 HOH WAT A . 
D 4 HOH 176 577 179 HOH WAT A . 
D 4 HOH 177 578 180 HOH WAT A . 
D 4 HOH 178 579 181 HOH WAT A . 
D 4 HOH 179 580 182 HOH WAT A . 
D 4 HOH 180 581 183 HOH WAT A . 
D 4 HOH 181 582 184 HOH WAT A . 
D 4 HOH 182 583 185 HOH WAT A . 
D 4 HOH 183 584 186 HOH WAT A . 
D 4 HOH 184 585 187 HOH WAT A . 
D 4 HOH 185 586 188 HOH WAT A . 
D 4 HOH 186 587 189 HOH WAT A . 
D 4 HOH 187 588 190 HOH WAT A . 
D 4 HOH 188 589 191 HOH WAT A . 
D 4 HOH 189 590 192 HOH WAT A . 
# 
_pdbx_struct_mod_residue.id               1 
_pdbx_struct_mod_residue.label_asym_id    A 
_pdbx_struct_mod_residue.label_comp_id    CYS 
_pdbx_struct_mod_residue.label_seq_id     39 
_pdbx_struct_mod_residue.auth_asym_id     A 
_pdbx_struct_mod_residue.auth_comp_id     CYS 
_pdbx_struct_mod_residue.auth_seq_id      39 
_pdbx_struct_mod_residue.PDB_ins_code     ? 
_pdbx_struct_mod_residue.parent_comp_id   CYS 
_pdbx_struct_mod_residue.details          'DISULFIDE BRIDGE' 
# 
_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,B,C,D 
# 
_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_
_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 2002-10-30 
2 'Structure model' 1 1 2008-04-28 
3 'Structure model' 1 2 2011-07-13 
4 'Structure model' 1 3 2021-10-27 
# 
_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'      
# 
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' struct_conn        
3 4 'Structure model' struct_ref_seq_dif 
4 4 'Structure model' struct_site        
# 
loop_
_pdbx_audit_revision_item.ordinal 
_pdbx_audit_revision_item.revision_ordinal 
_pdbx_audit_revision_item.data_content_type 
_pdbx_audit_revision_item.item 
1 4 'Structure model' '_database_2.pdbx_DOI'                
2 4 'Structure model' '_database_2.pdbx_database_accession' 
3 4 'Structure model' '_struct_conn.pdbx_leaving_atom_flag' 
4 4 'Structure model' '_struct_ref_seq_dif.details'         
5 4 'Structure model' '_struct_site.pdbx_auth_asym_id'      
6 4 'Structure model' '_struct_site.pdbx_auth_comp_id'      
7 4 'Structure model' '_struct_site.pdbx_auth_seq_id'       
# 
loop_
_software.name 
_software.classification 
_software.version 
_software.citation_id 
_software.pdbx_ordinal 
HKL-2000  'data collection' . ? 1 
SCALEPACK 'data scaling'    . ? 2 
CNS       refinement        . ? 3 
HKL-2000  'data reduction'  . ? 4 
CNS       phasing           . ? 5 
# 
loop_
_pdbx_entity_nonpoly.entity_id 
_pdbx_entity_nonpoly.name 
_pdbx_entity_nonpoly.comp_id 
2 'CITRIC ACID'        CIT 
3 BETA-MERCAPTOETHANOL BME 
4 water                HOH 
#