data_1SNB # _entry.id 1SNB # _audit_conform.dict_name mmcif_pdbx.dic _audit_conform.dict_version 5.389 _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 1SNB pdb_00001snb 10.2210/pdb1snb/pdb WWPDB D_1000176437 ? ? # loop_ _pdbx_audit_revision_history.ordinal _pdbx_audit_revision_history.data_content_type _pdbx_audit_revision_history.major_revision _pdbx_audit_revision_history.minor_revision _pdbx_audit_revision_history.revision_date 1 'Structure model' 1 0 1997-05-15 2 'Structure model' 1 1 2008-03-24 3 'Structure model' 1 2 2011-07-13 4 'Structure model' 1 3 2017-11-29 5 'Structure model' 1 4 2024-04-03 # _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' 'Derived calculations' 4 4 'Structure model' Other 5 5 'Structure model' 'Data collection' 6 5 'Structure model' 'Database references' 7 5 'Structure model' 'Refinement description' # 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' pdbx_database_status 2 4 'Structure model' struct_conf 3 4 'Structure model' struct_conf_type 4 5 'Structure model' chem_comp_atom 5 5 'Structure model' chem_comp_bond 6 5 'Structure model' database_2 7 5 'Structure model' pdbx_initial_refinement_model 8 5 'Structure model' struct_ref_seq_dif # 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' '_pdbx_database_status.process_site' 2 5 'Structure model' '_database_2.pdbx_DOI' 3 5 'Structure model' '_database_2.pdbx_database_accession' 4 5 'Structure model' '_struct_ref_seq_dif.details' # _pdbx_database_status.status_code REL _pdbx_database_status.entry_id 1SNB _pdbx_database_status.recvd_initial_deposition_date 1997-03-12 _pdbx_database_status.deposit_site ? _pdbx_database_status.process_site BNL _pdbx_database_status.SG_entry . _pdbx_database_status.pdb_format_compatible Y _pdbx_database_status.status_code_mr ? _pdbx_database_status.status_code_sf ? _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 'Wang, D.C.' 1 'Zeng, Z.H.' 2 'Li, H.M.' 3 # loop_ _citation.id _citation.title _citation.journal_abbrev _citation.journal_volume _citation.page_first _citation.page_last _citation.year _citation.journal_id_ASTM _citation.country _citation.journal_id_ISSN _citation.journal_id_CSD _citation.book_publisher _citation.pdbx_database_id_PubMed _citation.pdbx_database_id_DOI primary 'Crystal structure of an acidic neurotoxin from scorpion Buthus martensii Karsch at 1.85 A resolution.' J.Mol.Biol. 261 415 431 1996 JMOBAK UK 0022-2836 0070 ? 8780783 10.1006/jmbi.1996.0473 1 'Crystal Structure of Toxin II from the Scorpion Androctonus Australis Hector Refined at 1.3 A Resolution' J.Mol.Biol. 238 88 ? 1994 JMOBAK UK 0022-2836 0070 ? ? ? 2 'Crystallographic Studies on an Acidic Toxin from Scorpion Buthus Martensii Karsch' Chin.Sci.Bull. 38 561 ? 1993 CSBUEF CC 1001-6538 2071 ? ? ? 3 'Structure of Scorpion Toxin Variant-3 at 1.2 A Resolution' J.Mol.Biol. 227 239 ? 1992 JMOBAK UK 0022-2836 0070 ? ? ? 4 'Purification and Partial Characterization of Several New Neurotoxins from East-Asia Scorpion [Chinese]' 'Dongwuxue Yanjiu' 10 185 ? 1989 DOYADI CC 0254-5853 2136 ? ? ? 5 'Structure of Variant-3 Scorpion Neurotoxin from Centruroides Sculpturatus Ewing, Refined at 1.8 A Resolution' J.Mol.Biol. 170 497 ? 1983 JMOBAK UK 0022-2836 0070 ? ? ? 6 'Three-Dimensional Structure of a Protein from Scorpion Venom. A New Structural Class of Neurotoxins' Proc.Natl.Acad.Sci.USA 77 6496 ? 1980 PNASA6 US 0027-8424 0040 ? ? ? # loop_ _citation_author.citation_id _citation_author.name _citation_author.ordinal _citation_author.identifier_ORCID primary 'Li, H.M.' 1 ? primary 'Wang, D.C.' 2 ? primary 'Zeng, Z.H.' 3 ? primary 'Jin, L.' 4 ? primary 'Hu, R.Q.' 5 ? 1 'Housset, D.' 6 ? 1 'Habersetzer-Rochat, C.' 7 ? 1 'Astier, J.P.' 8 ? 1 'Fontecilla-Camps, J.C.' 9 ? 2 'Jin, L.' 10 ? 2 'Wang, M.' 11 ? 2 'Zeng, Z.H.' 12 ? 2 'Hu, R.Q.' 13 ? 2 'Wang, D.C.' 14 ? 3 'Zhao, B.' 15 ? 3 'Carson, M.' 16 ? 3 'Ealick, S.E.' 17 ? 3 'Bugg, C.E.' 18 ? 4 'Hu, R.Q.' 19 ? 4 'Wang, M.' 20 ? 4 'Liu, J.N.' 21 ? 4 'Lei, K.J.' 22 ? 5 'Almassy, R.J.' 23 ? 5 'Fontecilla-Camps, J.C.' 24 ? 5 'Suddath, F.L.' 25 ? 5 'Bugg, C.E.' 26 ? 6 'Fontecilla-Camps, J.C.' 27 ? 6 'Almassy, R.J.' 28 ? 6 'Suddath, F.L.' 29 ? 6 'Watt, D.D.' 30 ? 6 'Bugg, C.E.' 31 ? # 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 nat 'NEUROTOXIN BMK M8' 6954.609 1 ? ? ? ? 2 water nat water 18.015 141 ? ? ? ? # _entity_name_com.entity_id 1 _entity_name_com.name 'SCORPION NEUROTOXIN BMK M8, TOXIN BMK-VIII' # _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 GRDAYIADSENCTYFCGSNPYCNDVCTENGAKSGYCQWAGRYGNACYCIDLPASERIKEGGRCG _entity_poly.pdbx_seq_one_letter_code_can GRDAYIADSENCTYFCGSNPYCNDVCTENGAKSGYCQWAGRYGNACYCIDLPASERIKEGGRCG _entity_poly.pdbx_strand_id A _entity_poly.pdbx_target_identifier ? # _pdbx_entity_nonpoly.entity_id 2 _pdbx_entity_nonpoly.name water _pdbx_entity_nonpoly.comp_id HOH # loop_ _entity_poly_seq.entity_id _entity_poly_seq.num _entity_poly_seq.mon_id _entity_poly_seq.hetero 1 1 GLY n 1 2 ARG n 1 3 ASP n 1 4 ALA n 1 5 TYR n 1 6 ILE n 1 7 ALA n 1 8 ASP n 1 9 SER n 1 10 GLU n 1 11 ASN n 1 12 CYS n 1 13 THR n 1 14 TYR n 1 15 PHE n 1 16 CYS n 1 17 GLY n 1 18 SER n 1 19 ASN n 1 20 PRO n 1 21 TYR n 1 22 CYS n 1 23 ASN n 1 24 ASP n 1 25 VAL n 1 26 CYS n 1 27 THR n 1 28 GLU n 1 29 ASN n 1 30 GLY n 1 31 ALA n 1 32 LYS n 1 33 SER n 1 34 GLY n 1 35 TYR n 1 36 CYS n 1 37 GLN n 1 38 TRP n 1 39 ALA n 1 40 GLY n 1 41 ARG n 1 42 TYR n 1 43 GLY n 1 44 ASN n 1 45 ALA n 1 46 CYS n 1 47 TYR n 1 48 CYS n 1 49 ILE n 1 50 ASP n 1 51 LEU n 1 52 PRO n 1 53 ALA n 1 54 SER n 1 55 GLU n 1 56 ARG n 1 57 ILE n 1 58 LYS n 1 59 GLU n 1 60 GLY n 1 61 GLY n 1 62 ARG n 1 63 CYS n 1 64 GLY n # _entity_src_nat.entity_id 1 _entity_src_nat.pdbx_src_id 1 _entity_src_nat.pdbx_alt_source_flag sample _entity_src_nat.pdbx_beg_seq_num ? _entity_src_nat.pdbx_end_seq_num ? _entity_src_nat.common_name 'Chinese scorpion' _entity_src_nat.pdbx_organism_scientific 'Mesobuthus martensii' _entity_src_nat.pdbx_ncbi_taxonomy_id 34649 _entity_src_nat.genus Mesobuthus _entity_src_nat.species ? _entity_src_nat.strain ? _entity_src_nat.tissue ? _entity_src_nat.tissue_fraction ? _entity_src_nat.pdbx_secretion ? _entity_src_nat.pdbx_fragment ? _entity_src_nat.pdbx_variant ? _entity_src_nat.pdbx_cell_line ? _entity_src_nat.pdbx_atcc ? _entity_src_nat.pdbx_cellular_location ? _entity_src_nat.pdbx_organ TAIL _entity_src_nat.pdbx_organelle ? _entity_src_nat.pdbx_cell ? _entity_src_nat.pdbx_plasmid_name ? _entity_src_nat.pdbx_plasmid_details ? _entity_src_nat.details ? # 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 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 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 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 # 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 GLY 1 1 1 GLY GLY A . n A 1 2 ARG 2 2 2 ARG ARG A . n A 1 3 ASP 3 3 3 ASP ASP A . n A 1 4 ALA 4 4 4 ALA ALA A . n A 1 5 TYR 5 5 5 TYR TYR A . n A 1 6 ILE 6 6 6 ILE ILE A . n A 1 7 ALA 7 7 7 ALA ALA A . n A 1 8 ASP 8 8 8 ASP ASP A . n A 1 9 SER 9 9 9 SER SER A . n A 1 10 GLU 10 10 10 GLU GLU A . n A 1 11 ASN 11 11 11 ASN ASN A . n A 1 12 CYS 12 12 12 CYS CYS A . n A 1 13 THR 13 13 13 THR THR A . n A 1 14 TYR 14 14 14 TYR TYR A . n A 1 15 PHE 15 15 15 PHE PHE A . n A 1 16 CYS 16 16 16 CYS CYS A . n A 1 17 GLY 17 17 17 GLY GLY A . n A 1 18 SER 18 18 18 SER SER A . n A 1 19 ASN 19 19 19 ASN ASN A . n A 1 20 PRO 20 20 20 PRO PRO A . n A 1 21 TYR 21 21 21 TYR TYR A . n A 1 22 CYS 22 22 22 CYS CYS A . n A 1 23 ASN 23 23 23 ASN ASN A . n A 1 24 ASP 24 24 24 ASP ASP A . n A 1 25 VAL 25 25 25 VAL VAL A . n A 1 26 CYS 26 26 26 CYS CYS A . n A 1 27 THR 27 27 27 THR THR A . n A 1 28 GLU 28 28 28 GLU GLU A . n A 1 29 ASN 29 29 29 ASN ASN A . n A 1 30 GLY 30 30 30 GLY GLY A . n A 1 31 ALA 31 31 31 ALA ALA A . n A 1 32 LYS 32 32 32 LYS LYS A . n A 1 33 SER 33 33 33 SER SER A . n A 1 34 GLY 34 34 34 GLY GLY A . n A 1 35 TYR 35 35 35 TYR TYR A . n A 1 36 CYS 36 36 36 CYS CYS A . n A 1 37 GLN 37 37 37 GLN GLN A . n A 1 38 TRP 38 38 38 TRP TRP A . n A 1 39 ALA 39 39 39 ALA ALA A . n A 1 40 GLY 40 40 40 GLY GLY A . n A 1 41 ARG 41 41 41 ARG ARG A . n A 1 42 TYR 42 42 42 TYR TYR A . n A 1 43 GLY 43 43 43 GLY GLY A . n A 1 44 ASN 44 44 44 ASN ASN A . n A 1 45 ALA 45 45 45 ALA ALA A . n A 1 46 CYS 46 46 46 CYS CYS A . n A 1 47 TYR 47 47 47 TYR TYR A . n A 1 48 CYS 48 48 48 CYS CYS A . n A 1 49 ILE 49 49 49 ILE ILE A . n A 1 50 ASP 50 50 50 ASP ASP A . n A 1 51 LEU 51 51 51 LEU LEU A . n A 1 52 PRO 52 52 52 PRO PRO A . n A 1 53 ALA 53 53 53 ALA ALA A . n A 1 54 SER 54 54 54 SER SER A . n A 1 55 GLU 55 55 55 GLU GLU A . n A 1 56 ARG 56 56 56 ARG ARG A . n A 1 57 ILE 57 57 57 ILE ILE A . n A 1 58 LYS 58 58 58 LYS LYS A . n A 1 59 GLU 59 59 59 GLU GLU A . n A 1 60 GLY 60 60 60 GLY GLY A . n A 1 61 GLY 61 61 61 GLY GLY A . n A 1 62 ARG 62 62 62 ARG ARG A . n A 1 63 CYS 63 63 63 CYS CYS A . n A 1 64 GLY 64 64 64 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 HOH 1 65 65 HOH HOH A . B 2 HOH 2 66 66 HOH HOH A . B 2 HOH 3 67 67 HOH HOH A . B 2 HOH 4 68 68 HOH HOH A . B 2 HOH 5 69 69 HOH HOH A . B 2 HOH 6 70 70 HOH HOH A . B 2 HOH 7 71 71 HOH HOH A . B 2 HOH 8 72 72 HOH HOH A . B 2 HOH 9 73 73 HOH HOH A . B 2 HOH 10 74 74 HOH HOH A . B 2 HOH 11 75 75 HOH HOH A . B 2 HOH 12 76 76 HOH HOH A . B 2 HOH 13 77 77 HOH HOH A . B 2 HOH 14 78 78 HOH HOH A . B 2 HOH 15 79 79 HOH HOH A . B 2 HOH 16 80 80 HOH HOH A . B 2 HOH 17 81 81 HOH HOH A . B 2 HOH 18 82 82 HOH HOH A . B 2 HOH 19 83 83 HOH HOH A . B 2 HOH 20 84 84 HOH HOH A . B 2 HOH 21 85 85 HOH HOH A . B 2 HOH 22 86 86 HOH HOH A . B 2 HOH 23 87 87 HOH HOH A . B 2 HOH 24 88 88 HOH HOH A . B 2 HOH 25 89 89 HOH HOH A . B 2 HOH 26 90 90 HOH HOH A . B 2 HOH 27 91 91 HOH HOH A . B 2 HOH 28 92 92 HOH HOH A . B 2 HOH 29 93 93 HOH HOH A . B 2 HOH 30 94 94 HOH HOH A . B 2 HOH 31 95 95 HOH HOH A . B 2 HOH 32 96 96 HOH HOH A . B 2 HOH 33 97 97 HOH HOH A . B 2 HOH 34 98 98 HOH HOH A . B 2 HOH 35 99 99 HOH HOH A . B 2 HOH 36 100 100 HOH HOH A . B 2 HOH 37 101 101 HOH HOH A . B 2 HOH 38 102 102 HOH HOH A . B 2 HOH 39 103 103 HOH HOH A . B 2 HOH 40 104 104 HOH HOH A . B 2 HOH 41 105 105 HOH HOH A . B 2 HOH 42 106 106 HOH HOH A . B 2 HOH 43 107 107 HOH HOH A . B 2 HOH 44 108 108 HOH HOH A . B 2 HOH 45 109 109 HOH HOH A . B 2 HOH 46 110 110 HOH HOH A . B 2 HOH 47 111 111 HOH HOH A . B 2 HOH 48 112 112 HOH HOH A . B 2 HOH 49 113 113 HOH HOH A . B 2 HOH 50 114 114 HOH HOH A . B 2 HOH 51 115 115 HOH HOH A . B 2 HOH 52 116 116 HOH HOH A . B 2 HOH 53 117 117 HOH HOH A . B 2 HOH 54 118 118 HOH HOH A . B 2 HOH 55 119 119 HOH HOH A . B 2 HOH 56 120 120 HOH HOH A . B 2 HOH 57 121 121 HOH HOH A . B 2 HOH 58 122 122 HOH HOH A . B 2 HOH 59 123 123 HOH HOH A . B 2 HOH 60 124 124 HOH HOH A . B 2 HOH 61 125 125 HOH HOH A . B 2 HOH 62 126 126 HOH HOH A . B 2 HOH 63 127 127 HOH HOH A . B 2 HOH 64 128 128 HOH HOH A . B 2 HOH 65 129 129 HOH HOH A . B 2 HOH 66 130 130 HOH HOH A . B 2 HOH 67 131 131 HOH HOH A . B 2 HOH 68 132 132 HOH HOH A . B 2 HOH 69 133 133 HOH HOH A . B 2 HOH 70 134 134 HOH HOH A . B 2 HOH 71 135 135 HOH HOH A . B 2 HOH 72 136 136 HOH HOH A . B 2 HOH 73 137 137 HOH HOH A . B 2 HOH 74 138 138 HOH HOH A . B 2 HOH 75 139 139 HOH HOH A . B 2 HOH 76 140 140 HOH HOH A . B 2 HOH 77 141 141 HOH HOH A . B 2 HOH 78 142 142 HOH HOH A . B 2 HOH 79 143 143 HOH HOH A . B 2 HOH 80 144 144 HOH HOH A . B 2 HOH 81 145 145 HOH HOH A . B 2 HOH 82 146 146 HOH HOH A . B 2 HOH 83 147 147 HOH HOH A . B 2 HOH 84 148 148 HOH HOH A . B 2 HOH 85 149 149 HOH HOH A . B 2 HOH 86 150 150 HOH HOH A . B 2 HOH 87 151 151 HOH HOH A . B 2 HOH 88 152 152 HOH HOH A . B 2 HOH 89 153 153 HOH HOH A . B 2 HOH 90 154 154 HOH HOH A . B 2 HOH 91 155 155 HOH HOH A . B 2 HOH 92 156 156 HOH HOH A . B 2 HOH 93 157 157 HOH HOH A . B 2 HOH 94 158 158 HOH HOH A . B 2 HOH 95 159 159 HOH HOH A . B 2 HOH 96 160 160 HOH HOH A . B 2 HOH 97 161 161 HOH HOH A . B 2 HOH 98 162 162 HOH HOH A . B 2 HOH 99 163 163 HOH HOH A . B 2 HOH 100 164 164 HOH HOH A . B 2 HOH 101 165 165 HOH HOH A . B 2 HOH 102 166 166 HOH HOH A . B 2 HOH 103 167 167 HOH HOH A . B 2 HOH 104 168 168 HOH HOH A . B 2 HOH 105 169 169 HOH HOH A . B 2 HOH 106 170 170 HOH HOH A . B 2 HOH 107 171 171 HOH HOH A . B 2 HOH 108 172 172 HOH HOH A . B 2 HOH 109 173 173 HOH HOH A . B 2 HOH 110 174 174 HOH HOH A . B 2 HOH 111 175 175 HOH HOH A . B 2 HOH 112 176 176 HOH HOH A . B 2 HOH 113 177 177 HOH HOH A . B 2 HOH 114 178 178 HOH HOH A . B 2 HOH 115 179 179 HOH HOH A . B 2 HOH 116 180 180 HOH HOH A . B 2 HOH 117 181 181 HOH HOH A . B 2 HOH 118 182 182 HOH HOH A . B 2 HOH 119 183 183 HOH HOH A . B 2 HOH 120 184 184 HOH HOH A . B 2 HOH 121 185 185 HOH HOH A . B 2 HOH 122 186 186 HOH HOH A . B 2 HOH 123 187 187 HOH HOH A . B 2 HOH 124 188 188 HOH HOH A . B 2 HOH 125 189 189 HOH HOH A . B 2 HOH 126 190 190 HOH HOH A . B 2 HOH 127 191 191 HOH HOH A . B 2 HOH 128 192 192 HOH HOH A . B 2 HOH 129 193 193 HOH HOH A . B 2 HOH 130 194 194 HOH HOH A . B 2 HOH 131 195 195 HOH HOH A . B 2 HOH 132 196 196 HOH HOH A . B 2 HOH 133 197 197 HOH HOH A . B 2 HOH 134 198 198 HOH HOH A . B 2 HOH 135 199 199 HOH HOH A . B 2 HOH 136 200 200 HOH HOH A . B 2 HOH 137 201 201 HOH HOH A . B 2 HOH 138 202 202 HOH HOH A . B 2 HOH 139 203 203 HOH HOH A . B 2 HOH 140 204 204 HOH HOH A . B 2 HOH 141 205 205 HOH HOH A . # loop_ _software.name _software.classification _software.version _software.citation_id _software.pdbx_ordinal XENGEN 'data collection' . ? 1 XENGEN 'data reduction' . ? 2 X-PLOR 'model building' . ? 3 X-PLOR refinement . ? 4 XENGEN 'data scaling' . ? 5 X-PLOR phasing . ? 6 # _cell.entry_id 1SNB _cell.length_a 23.320 _cell.length_b 38.560 _cell.length_c 29.150 _cell.angle_alpha 90.00 _cell.angle_beta 107.48 _cell.angle_gamma 90.00 _cell.Z_PDB 2 _cell.pdbx_unique_axis ? # _symmetry.entry_id 1SNB _symmetry.space_group_name_H-M 'P 1 21 1' _symmetry.pdbx_full_space_group_name_H-M ? _symmetry.cell_setting ? _symmetry.Int_Tables_number 4 # _exptl.entry_id 1SNB _exptl.method 'X-RAY DIFFRACTION' _exptl.crystals_number 1 # _exptl_crystal.id 1 _exptl_crystal.density_meas ? _exptl_crystal.density_Matthews 1.81 _exptl_crystal.density_percent_sol 33. _exptl_crystal.description ? # _diffrn.id 1 _diffrn.ambient_temp 293 _diffrn.ambient_temp_details ? _diffrn.crystal_id 1 # _diffrn_detector.diffrn_id 1 _diffrn_detector.detector 'AREA DETECTOR' _diffrn_detector.type SIEMENS _diffrn_detector.pdbx_collection_date 1991-12-14 _diffrn_detector.details ? # _diffrn_radiation.diffrn_id 1 _diffrn_radiation.wavelength_id 1 _diffrn_radiation.pdbx_monochromatic_or_laue_m_l M _diffrn_radiation.monochromator ? _diffrn_radiation.pdbx_diffrn_protocol ? _diffrn_radiation.pdbx_scattering_type x-ray # _diffrn_radiation_wavelength.id 1 _diffrn_radiation_wavelength.wavelength 1.5418 _diffrn_radiation_wavelength.wt 1.0 # _diffrn_source.diffrn_id 1 _diffrn_source.source ? _diffrn_source.type ? _diffrn_source.pdbx_synchrotron_site ? _diffrn_source.pdbx_synchrotron_beamline ? _diffrn_source.pdbx_wavelength 1.5418 _diffrn_source.pdbx_wavelength_list ? # _reflns.entry_id 1SNB _reflns.observed_criterion_sigma_I ? _reflns.observed_criterion_sigma_F ? _reflns.d_resolution_low ? _reflns.d_resolution_high 1.85 _reflns.number_obs 3802 _reflns.number_all ? _reflns.percent_possible_obs 88.4 _reflns.pdbx_Rmerge_I_obs 0.0523 _reflns.pdbx_Rsym_value ? _reflns.pdbx_netI_over_sigmaI 10.2 _reflns.B_iso_Wilson_estimate 15.0 _reflns.pdbx_redundancy 1.6 _reflns.pdbx_diffrn_id 1 _reflns.pdbx_ordinal 1 # _reflns_shell.d_res_high 1.85 _reflns_shell.d_res_low 1.95 _reflns_shell.percent_possible_all 17.3 _reflns_shell.Rmerge_I_obs 0.118 _reflns_shell.pdbx_Rsym_value ? _reflns_shell.meanI_over_sigI_obs 4.59 _reflns_shell.pdbx_redundancy 1.15 _reflns_shell.pdbx_diffrn_id ? _reflns_shell.pdbx_ordinal 1 # _refine.entry_id 1SNB _refine.ls_number_reflns_obs 3615 _refine.ls_number_reflns_all ? _refine.pdbx_ls_sigma_I ? _refine.pdbx_ls_sigma_F 2. _refine.pdbx_data_cutoff_high_absF 100000. _refine.pdbx_data_cutoff_low_absF 0.1 _refine.pdbx_data_cutoff_high_rms_absF ? _refine.ls_d_res_low 8.0 _refine.ls_d_res_high 1.9 _refine.ls_percent_reflns_obs 92.4 _refine.ls_R_factor_obs 0.181 _refine.ls_R_factor_all ? _refine.ls_R_factor_R_work 0.181 _refine.ls_R_factor_R_free ? _refine.ls_R_factor_R_free_error ? _refine.ls_R_factor_R_free_error_details ? _refine.ls_percent_reflns_R_free ? _refine.ls_number_reflns_R_free ? _refine.ls_number_parameters ? _refine.ls_number_restraints ? _refine.occupancy_min ? _refine.occupancy_max ? _refine.B_iso_mean 16.7 _refine.aniso_B[1][1] ? _refine.aniso_B[2][2] ? _refine.aniso_B[3][3] ? _refine.aniso_B[1][2] ? _refine.aniso_B[1][3] ? _refine.aniso_B[2][3] ? _refine.solvent_model_details ? _refine.solvent_model_param_ksol ? _refine.solvent_model_param_bsol ? _refine.pdbx_ls_cross_valid_method ? _refine.details ? _refine.pdbx_starting_model 'AAH II' _refine.pdbx_method_to_determine_struct 'MOLECULAR REPLACEMENT' _refine.pdbx_isotropic_thermal_model ? _refine.pdbx_stereochemistry_target_values ? _refine.pdbx_stereochem_target_val_spec_case ? _refine.pdbx_R_Free_selection_details ? _refine.pdbx_overall_ESU_R ? _refine.pdbx_overall_ESU_R_Free ? _refine.overall_SU_ML ? _refine.overall_SU_B ? _refine.pdbx_refine_id 'X-RAY DIFFRACTION' _refine.pdbx_diffrn_id 1 _refine.pdbx_TLS_residual_ADP_flag ? _refine.correlation_coeff_Fo_to_Fc ? _refine.correlation_coeff_Fo_to_Fc_free ? _refine.pdbx_solvent_vdw_probe_radii ? _refine.pdbx_solvent_ion_probe_radii ? _refine.pdbx_solvent_shrinkage_radii ? _refine.pdbx_overall_phase_error ? _refine.overall_SU_R_Cruickshank_DPI ? _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 1SNB _refine_analyze.Luzzati_coordinate_error_obs 0.2 _refine_analyze.Luzzati_sigma_a_obs ? _refine_analyze.Luzzati_d_res_low_obs ? _refine_analyze.Luzzati_coordinate_error_free ? _refine_analyze.Luzzati_sigma_a_free ? _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_refine_id 'X-RAY DIFFRACTION' # _refine_hist.pdbx_refine_id 'X-RAY DIFFRACTION' _refine_hist.cycle_id LAST _refine_hist.pdbx_number_atoms_protein 482 _refine_hist.pdbx_number_atoms_nucleic_acid 0 _refine_hist.pdbx_number_atoms_ligand 0 _refine_hist.number_atoms_solvent 141 _refine_hist.number_atoms_total 623 _refine_hist.d_res_high 1.9 _refine_hist.d_res_low 8.0 # 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 x_bond_d 0.016 ? ? ? 'X-RAY DIFFRACTION' ? x_bond_d_na ? ? ? ? 'X-RAY DIFFRACTION' ? x_bond_d_prot ? ? ? ? 'X-RAY DIFFRACTION' ? x_angle_d ? ? ? ? 'X-RAY DIFFRACTION' ? x_angle_d_na ? ? ? ? 'X-RAY DIFFRACTION' ? x_angle_d_prot ? ? ? ? 'X-RAY DIFFRACTION' ? x_angle_deg 2.175 ? ? ? 'X-RAY DIFFRACTION' ? x_angle_deg_na ? ? ? ? 'X-RAY DIFFRACTION' ? x_angle_deg_prot ? ? ? ? 'X-RAY DIFFRACTION' ? x_dihedral_angle_d 26.04 ? ? ? 'X-RAY DIFFRACTION' ? x_dihedral_angle_d_na ? ? ? ? 'X-RAY DIFFRACTION' ? x_dihedral_angle_d_prot ? ? ? ? 'X-RAY DIFFRACTION' ? x_improper_angle_d 2.200 ? ? ? 'X-RAY DIFFRACTION' ? x_improper_angle_d_na ? ? ? ? 'X-RAY DIFFRACTION' ? x_improper_angle_d_prot ? ? ? ? 'X-RAY DIFFRACTION' ? x_mcbond_it ? ? ? ? 'X-RAY DIFFRACTION' ? x_mcangle_it ? ? ? ? 'X-RAY DIFFRACTION' ? x_scbond_it ? ? ? ? 'X-RAY DIFFRACTION' ? x_scangle_it ? ? ? ? 'X-RAY DIFFRACTION' ? # _refine_ls_shell.pdbx_total_number_of_bins_used 10 _refine_ls_shell.d_res_high 1.90 _refine_ls_shell.d_res_low 1.97 _refine_ls_shell.number_reflns_R_work 246 _refine_ls_shell.R_factor_R_work 0.273 _refine_ls_shell.percent_reflns_obs 62.4 _refine_ls_shell.R_factor_R_free ? _refine_ls_shell.R_factor_R_free_error ? _refine_ls_shell.percent_reflns_R_free ? _refine_ls_shell.number_reflns_R_free ? _refine_ls_shell.pdbx_refine_id 'X-RAY DIFFRACTION' _refine_ls_shell.number_reflns_all ? _refine_ls_shell.R_factor_all ? # _database_PDB_matrix.entry_id 1SNB _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 1SNB _struct.title 'STRUCTURE OF SCORPION NEUROTOXIN BMK M8' _struct.pdbx_model_details ? _struct.pdbx_CASP_flag ? _struct.pdbx_model_type_details ? # _struct_keywords.entry_id 1SNB _struct_keywords.pdbx_keywords NEUROTOXIN _struct_keywords.text 'NEUROTOXIN, SODIUM CHANNEL INHIBITOR, SCORPION' # 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 ? # _struct_ref.id 1 _struct_ref.db_name UNP _struct_ref.db_code SCX8_MESMA _struct_ref.entity_id 1 _struct_ref.pdbx_db_accession P54135 _struct_ref.pdbx_align_begin 1 _struct_ref.pdbx_seq_one_letter_code GRDAYIADSENCTYFCGSNPYCNDVCTENGAKSGYCQWAGRYGNACYCIDLPASERIKEPGKCG _struct_ref.pdbx_db_isoform ? # _struct_ref_seq.align_id 1 _struct_ref_seq.ref_id 1 _struct_ref_seq.pdbx_PDB_id_code 1SNB _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 64 _struct_ref_seq.pdbx_seq_align_end_ins_code ? _struct_ref_seq.pdbx_db_accession P54135 _struct_ref_seq.db_align_beg 1 _struct_ref_seq.pdbx_db_align_beg_ins_code ? _struct_ref_seq.db_align_end 64 _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 64 # 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 1SNB GLY A 60 ? UNP P54135 PRO 60 conflict 60 1 1 1SNB ARG A 62 ? UNP P54135 LYS 62 conflict 62 2 # _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 # _pdbx_struct_oper_list.id 1 _pdbx_struct_oper_list.type 'identity operation' _pdbx_struct_oper_list.name 1_555 _pdbx_struct_oper_list.symmetry_operation x,y,z _pdbx_struct_oper_list.matrix[1][1] 1.0000000000 _pdbx_struct_oper_list.matrix[1][2] 0.0000000000 _pdbx_struct_oper_list.matrix[1][3] 0.0000000000 _pdbx_struct_oper_list.vector[1] 0.0000000000 _pdbx_struct_oper_list.matrix[2][1] 0.0000000000 _pdbx_struct_oper_list.matrix[2][2] 1.0000000000 _pdbx_struct_oper_list.matrix[2][3] 0.0000000000 _pdbx_struct_oper_list.vector[2] 0.0000000000 _pdbx_struct_oper_list.matrix[3][1] 0.0000000000 _pdbx_struct_oper_list.matrix[3][2] 0.0000000000 _pdbx_struct_oper_list.matrix[3][3] 1.0000000000 _pdbx_struct_oper_list.vector[3] 0.0000000000 # _struct_biol.id 1 # _struct_conf.conf_type_id HELX_P _struct_conf.id HELX_P1 _struct_conf.pdbx_PDB_helix_id H1 _struct_conf.beg_label_comp_id ASN _struct_conf.beg_label_asym_id A _struct_conf.beg_label_seq_id 19 _struct_conf.pdbx_beg_PDB_ins_code ? _struct_conf.end_label_comp_id GLU _struct_conf.end_label_asym_id A _struct_conf.end_label_seq_id 28 _struct_conf.pdbx_end_PDB_ins_code ? _struct_conf.beg_auth_comp_id ASN _struct_conf.beg_auth_asym_id A _struct_conf.beg_auth_seq_id 19 _struct_conf.end_auth_comp_id GLU _struct_conf.end_auth_asym_id A _struct_conf.end_auth_seq_id 28 _struct_conf.pdbx_PDB_helix_class 1 _struct_conf.details ? _struct_conf.pdbx_PDB_helix_length 10 # _struct_conf_type.id HELX_P _struct_conf_type.criteria ? _struct_conf_type.reference ? # 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 disulf1 disulf ? ? A CYS 12 SG ? ? ? 1_555 A CYS 63 SG ? ? A CYS 12 A CYS 63 1_555 ? ? ? ? ? ? ? 2.038 ? ? disulf2 disulf ? ? A CYS 16 SG ? ? ? 1_555 A CYS 36 SG ? ? A CYS 16 A CYS 36 1_555 ? ? ? ? ? ? ? 2.037 ? ? disulf3 disulf ? ? A CYS 22 SG ? ? ? 1_555 A CYS 46 SG ? ? A CYS 22 A CYS 46 1_555 ? ? ? ? ? ? ? 2.034 ? ? disulf4 disulf ? ? A CYS 26 SG ? ? ? 1_555 A CYS 48 SG ? ? A CYS 26 A CYS 48 1_555 ? ? ? ? ? ? ? 2.054 ? ? # _struct_conn_type.id disulf _struct_conn_type.criteria ? _struct_conn_type.reference ? # _struct_sheet.id S1 _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 S1 1 2 ? anti-parallel S1 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 S1 1 ARG A 2 ? TYR A 5 ? ARG A 2 TYR A 5 S1 2 GLY A 43 ? LEU A 51 ? GLY A 43 LEU A 51 S1 3 SER A 33 ? GLY A 40 ? SER A 33 GLY A 40 # 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 S1 1 2 N ALA A 4 ? N ALA A 4 O CYS A 48 ? O CYS A 48 S1 2 3 N ILE A 49 ? N ILE A 49 O SER A 33 ? O SER A 33 # _pdbx_validate_close_contact.id 1 _pdbx_validate_close_contact.PDB_model_num 1 _pdbx_validate_close_contact.auth_atom_id_1 O _pdbx_validate_close_contact.auth_asym_id_1 A _pdbx_validate_close_contact.auth_comp_id_1 HOH _pdbx_validate_close_contact.auth_seq_id_1 126 _pdbx_validate_close_contact.PDB_ins_code_1 ? _pdbx_validate_close_contact.label_alt_id_1 ? _pdbx_validate_close_contact.auth_atom_id_2 O _pdbx_validate_close_contact.auth_asym_id_2 A _pdbx_validate_close_contact.auth_comp_id_2 HOH _pdbx_validate_close_contact.auth_seq_id_2 155 _pdbx_validate_close_contact.PDB_ins_code_2 ? _pdbx_validate_close_contact.label_alt_id_2 ? _pdbx_validate_close_contact.dist 2.19 # _pdbx_validate_rmsd_angle.id 1 _pdbx_validate_rmsd_angle.PDB_model_num 1 _pdbx_validate_rmsd_angle.auth_atom_id_1 CB _pdbx_validate_rmsd_angle.auth_asym_id_1 A _pdbx_validate_rmsd_angle.auth_comp_id_1 ILE _pdbx_validate_rmsd_angle.auth_seq_id_1 6 _pdbx_validate_rmsd_angle.PDB_ins_code_1 ? _pdbx_validate_rmsd_angle.label_alt_id_1 ? _pdbx_validate_rmsd_angle.auth_atom_id_2 CA _pdbx_validate_rmsd_angle.auth_asym_id_2 A _pdbx_validate_rmsd_angle.auth_comp_id_2 ILE _pdbx_validate_rmsd_angle.auth_seq_id_2 6 _pdbx_validate_rmsd_angle.PDB_ins_code_2 ? _pdbx_validate_rmsd_angle.label_alt_id_2 ? _pdbx_validate_rmsd_angle.auth_atom_id_3 C _pdbx_validate_rmsd_angle.auth_asym_id_3 A _pdbx_validate_rmsd_angle.auth_comp_id_3 ILE _pdbx_validate_rmsd_angle.auth_seq_id_3 6 _pdbx_validate_rmsd_angle.PDB_ins_code_3 ? _pdbx_validate_rmsd_angle.label_alt_id_3 ? _pdbx_validate_rmsd_angle.angle_value 98.43 _pdbx_validate_rmsd_angle.angle_target_value 111.60 _pdbx_validate_rmsd_angle.angle_deviation -13.17 _pdbx_validate_rmsd_angle.angle_standard_deviation 2.00 _pdbx_validate_rmsd_angle.linker_flag N # loop_ _pdbx_validate_torsion.id _pdbx_validate_torsion.PDB_model_num _pdbx_validate_torsion.auth_comp_id _pdbx_validate_torsion.auth_asym_id _pdbx_validate_torsion.auth_seq_id _pdbx_validate_torsion.PDB_ins_code _pdbx_validate_torsion.label_alt_id _pdbx_validate_torsion.phi _pdbx_validate_torsion.psi 1 1 SER A 33 ? ? -162.24 -168.33 2 1 CYS A 63 ? ? -125.98 -130.47 # 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 ALA N N N N 1 ALA CA C N S 2 ALA C C N N 3 ALA O O N N 4 ALA CB C N N 5 ALA OXT O N N 6 ALA H H N N 7 ALA H2 H N N 8 ALA HA H N N 9 ALA HB1 H N N 10 ALA HB2 H N N 11 ALA HB3 H N N 12 ALA HXT H N N 13 ARG N N N N 14 ARG CA C N S 15 ARG C C N N 16 ARG O O N N 17 ARG CB C N N 18 ARG CG C N N 19 ARG CD C N N 20 ARG NE N N N 21 ARG CZ C N N 22 ARG NH1 N N N 23 ARG NH2 N N N 24 ARG OXT O N N 25 ARG H H N N 26 ARG H2 H N N 27 ARG HA H N N 28 ARG HB2 H N N 29 ARG HB3 H N N 30 ARG HG2 H N N 31 ARG HG3 H N N 32 ARG HD2 H N N 33 ARG HD3 H N N 34 ARG HE H N N 35 ARG HH11 H N N 36 ARG HH12 H N N 37 ARG HH21 H N N 38 ARG HH22 H N N 39 ARG HXT H N N 40 ASN N N N N 41 ASN CA C N S 42 ASN C C N N 43 ASN O O N N 44 ASN CB C N N 45 ASN CG C N N 46 ASN OD1 O N N 47 ASN ND2 N N N 48 ASN OXT O N N 49 ASN H H N N 50 ASN H2 H N N 51 ASN HA H N N 52 ASN HB2 H N N 53 ASN HB3 H N N 54 ASN HD21 H N N 55 ASN HD22 H N N 56 ASN HXT H N N 57 ASP N N N N 58 ASP CA C N S 59 ASP C C N N 60 ASP O O N N 61 ASP CB C N N 62 ASP CG C N N 63 ASP OD1 O N N 64 ASP OD2 O N N 65 ASP OXT O N N 66 ASP H H N N 67 ASP H2 H N N 68 ASP HA H N N 69 ASP HB2 H N N 70 ASP HB3 H N N 71 ASP HD2 H N N 72 ASP HXT H N N 73 CYS N N N N 74 CYS CA C N R 75 CYS C C N N 76 CYS O O N N 77 CYS CB C N N 78 CYS SG S N N 79 CYS OXT O N N 80 CYS H H N N 81 CYS H2 H N N 82 CYS HA H N N 83 CYS HB2 H N N 84 CYS HB3 H N N 85 CYS HG H N N 86 CYS HXT H N N 87 GLN N N N N 88 GLN CA C N S 89 GLN C C N N 90 GLN O O N N 91 GLN CB C N N 92 GLN CG C N N 93 GLN CD C N N 94 GLN OE1 O N N 95 GLN NE2 N N N 96 GLN OXT O N N 97 GLN H H N N 98 GLN H2 H N N 99 GLN HA H N N 100 GLN HB2 H N N 101 GLN HB3 H N N 102 GLN HG2 H N N 103 GLN HG3 H N N 104 GLN HE21 H N N 105 GLN HE22 H N N 106 GLN HXT H N N 107 GLU N N N N 108 GLU CA C N S 109 GLU C C N N 110 GLU O O N N 111 GLU CB C N N 112 GLU CG C N N 113 GLU CD C N N 114 GLU OE1 O N N 115 GLU OE2 O N N 116 GLU OXT O N N 117 GLU H H N N 118 GLU H2 H N N 119 GLU HA H N N 120 GLU HB2 H N N 121 GLU HB3 H N N 122 GLU HG2 H N N 123 GLU HG3 H N N 124 GLU HE2 H N N 125 GLU HXT H N N 126 GLY N N N N 127 GLY CA C N N 128 GLY C C N N 129 GLY O O N N 130 GLY OXT O N N 131 GLY H H N N 132 GLY H2 H N N 133 GLY HA2 H N N 134 GLY HA3 H N N 135 GLY HXT H N N 136 HOH O O N N 137 HOH H1 H N N 138 HOH H2 H N N 139 ILE N N N N 140 ILE CA C N S 141 ILE C C N N 142 ILE O O N N 143 ILE CB C N S 144 ILE CG1 C N N 145 ILE CG2 C N N 146 ILE CD1 C N N 147 ILE OXT O N N 148 ILE H H N N 149 ILE H2 H N N 150 ILE HA H N N 151 ILE HB H N N 152 ILE HG12 H N N 153 ILE HG13 H N N 154 ILE HG21 H N N 155 ILE HG22 H N N 156 ILE HG23 H N N 157 ILE HD11 H N N 158 ILE HD12 H N N 159 ILE HD13 H N N 160 ILE HXT H N N 161 LEU N N N N 162 LEU CA C N S 163 LEU C C N N 164 LEU O O N N 165 LEU CB C N N 166 LEU CG C N N 167 LEU CD1 C N N 168 LEU CD2 C N N 169 LEU OXT O N N 170 LEU H H N N 171 LEU H2 H N N 172 LEU HA H N N 173 LEU HB2 H N N 174 LEU HB3 H N N 175 LEU HG H N N 176 LEU HD11 H N N 177 LEU HD12 H N N 178 LEU HD13 H N N 179 LEU HD21 H N N 180 LEU HD22 H N N 181 LEU HD23 H N N 182 LEU HXT H N N 183 LYS N N N N 184 LYS CA C N S 185 LYS C C N N 186 LYS O O N N 187 LYS CB C N N 188 LYS CG C N N 189 LYS CD C N N 190 LYS CE C N N 191 LYS NZ N N N 192 LYS OXT O N N 193 LYS H H N N 194 LYS H2 H N N 195 LYS HA H N N 196 LYS HB2 H N N 197 LYS HB3 H N N 198 LYS HG2 H N N 199 LYS HG3 H N N 200 LYS HD2 H N N 201 LYS HD3 H N N 202 LYS HE2 H N N 203 LYS HE3 H N N 204 LYS HZ1 H N N 205 LYS HZ2 H N N 206 LYS HZ3 H N N 207 LYS HXT H N N 208 PHE N N N N 209 PHE CA C N S 210 PHE C C N N 211 PHE O O N N 212 PHE CB C N N 213 PHE CG C Y N 214 PHE CD1 C Y N 215 PHE CD2 C Y N 216 PHE CE1 C Y N 217 PHE CE2 C Y N 218 PHE CZ C Y N 219 PHE OXT O N N 220 PHE H H N N 221 PHE H2 H N N 222 PHE HA H N N 223 PHE HB2 H N N 224 PHE HB3 H N N 225 PHE HD1 H N N 226 PHE HD2 H N N 227 PHE HE1 H N N 228 PHE HE2 H N N 229 PHE HZ H N N 230 PHE HXT H N N 231 PRO N N N N 232 PRO CA C N S 233 PRO C C N N 234 PRO O O N N 235 PRO CB C N N 236 PRO CG C N N 237 PRO CD C N N 238 PRO OXT O N N 239 PRO H H N N 240 PRO HA H N N 241 PRO HB2 H N N 242 PRO HB3 H N N 243 PRO HG2 H N N 244 PRO HG3 H N N 245 PRO HD2 H N N 246 PRO HD3 H N N 247 PRO HXT H N N 248 SER N N N N 249 SER CA C N S 250 SER C C N N 251 SER O O N N 252 SER CB C N N 253 SER OG O N N 254 SER OXT O N N 255 SER H H N N 256 SER H2 H N N 257 SER HA H N N 258 SER HB2 H N N 259 SER HB3 H N N 260 SER HG H N N 261 SER HXT H N N 262 THR N N N N 263 THR CA C N S 264 THR C C N N 265 THR O O N N 266 THR CB C N R 267 THR OG1 O N N 268 THR CG2 C N N 269 THR OXT O N N 270 THR H H N N 271 THR H2 H N N 272 THR HA H N N 273 THR HB H N N 274 THR HG1 H N N 275 THR HG21 H N N 276 THR HG22 H N N 277 THR HG23 H N N 278 THR HXT H N N 279 TRP N N N N 280 TRP CA C N S 281 TRP C C N N 282 TRP O O N N 283 TRP CB C N N 284 TRP CG C Y N 285 TRP CD1 C Y N 286 TRP CD2 C Y N 287 TRP NE1 N Y N 288 TRP CE2 C Y N 289 TRP CE3 C Y N 290 TRP CZ2 C Y N 291 TRP CZ3 C Y N 292 TRP CH2 C Y N 293 TRP OXT O N N 294 TRP H H N N 295 TRP H2 H N N 296 TRP HA H N N 297 TRP HB2 H N N 298 TRP HB3 H N N 299 TRP HD1 H N N 300 TRP HE1 H N N 301 TRP HE3 H N N 302 TRP HZ2 H N N 303 TRP HZ3 H N N 304 TRP HH2 H N N 305 TRP HXT H N N 306 TYR N N N N 307 TYR CA C N S 308 TYR C C N N 309 TYR O O N N 310 TYR CB C N N 311 TYR CG C Y N 312 TYR CD1 C Y N 313 TYR CD2 C Y N 314 TYR CE1 C Y N 315 TYR CE2 C Y N 316 TYR CZ C Y N 317 TYR OH O N N 318 TYR OXT O N N 319 TYR H H N N 320 TYR H2 H N N 321 TYR HA H N N 322 TYR HB2 H N N 323 TYR HB3 H N N 324 TYR HD1 H N N 325 TYR HD2 H N N 326 TYR HE1 H N N 327 TYR HE2 H N N 328 TYR HH H N N 329 TYR HXT H N N 330 VAL N N N N 331 VAL CA C N S 332 VAL C C N N 333 VAL O O N N 334 VAL CB C N N 335 VAL CG1 C N N 336 VAL CG2 C N N 337 VAL OXT O N N 338 VAL H H N N 339 VAL H2 H N N 340 VAL HA H N N 341 VAL HB H N N 342 VAL HG11 H N N 343 VAL HG12 H N N 344 VAL HG13 H N N 345 VAL HG21 H N N 346 VAL HG22 H N N 347 VAL HG23 H N N 348 VAL HXT H N N 349 # 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 ALA N CA sing N N 1 ALA N H sing N N 2 ALA N H2 sing N N 3 ALA CA C sing N N 4 ALA CA CB sing N N 5 ALA CA HA sing N N 6 ALA C O doub N N 7 ALA C OXT sing N N 8 ALA CB HB1 sing N N 9 ALA CB HB2 sing N N 10 ALA CB HB3 sing N N 11 ALA OXT HXT sing N N 12 ARG N CA sing N N 13 ARG N H sing N N 14 ARG N H2 sing N N 15 ARG CA C sing N N 16 ARG CA CB sing N N 17 ARG CA HA sing N N 18 ARG C O doub N N 19 ARG C OXT sing N N 20 ARG CB CG sing N N 21 ARG CB HB2 sing N N 22 ARG CB HB3 sing N N 23 ARG CG CD sing N N 24 ARG CG HG2 sing N N 25 ARG CG HG3 sing N N 26 ARG CD NE sing N N 27 ARG CD HD2 sing N N 28 ARG CD HD3 sing N N 29 ARG NE CZ sing N N 30 ARG NE HE sing N N 31 ARG CZ NH1 sing N N 32 ARG CZ NH2 doub N N 33 ARG NH1 HH11 sing N N 34 ARG NH1 HH12 sing N N 35 ARG NH2 HH21 sing N N 36 ARG NH2 HH22 sing N N 37 ARG OXT HXT sing N N 38 ASN N CA sing N N 39 ASN N H sing N N 40 ASN N H2 sing N N 41 ASN CA C sing N N 42 ASN CA CB sing N N 43 ASN CA HA sing N N 44 ASN C O doub N N 45 ASN C OXT sing N N 46 ASN CB CG sing N N 47 ASN CB HB2 sing N N 48 ASN CB HB3 sing N N 49 ASN CG OD1 doub N N 50 ASN CG ND2 sing N N 51 ASN ND2 HD21 sing N N 52 ASN ND2 HD22 sing N N 53 ASN OXT HXT sing N N 54 ASP N CA sing N N 55 ASP N H sing N N 56 ASP N H2 sing N N 57 ASP CA C sing N N 58 ASP CA CB sing N N 59 ASP CA HA sing N N 60 ASP C O doub N N 61 ASP C OXT sing N N 62 ASP CB CG sing N N 63 ASP CB HB2 sing N N 64 ASP CB HB3 sing N N 65 ASP CG OD1 doub N N 66 ASP CG OD2 sing N N 67 ASP OD2 HD2 sing N N 68 ASP OXT HXT sing N N 69 CYS N CA sing N N 70 CYS N H sing N N 71 CYS N H2 sing N N 72 CYS CA C sing N N 73 CYS CA CB sing N N 74 CYS CA HA sing N N 75 CYS C O doub N N 76 CYS C OXT sing N N 77 CYS CB SG sing N N 78 CYS CB HB2 sing N N 79 CYS CB HB3 sing N N 80 CYS SG HG sing N N 81 CYS OXT HXT sing N N 82 GLN N CA sing N N 83 GLN N H sing N N 84 GLN N H2 sing N N 85 GLN CA C sing N N 86 GLN CA CB sing N N 87 GLN CA HA sing N N 88 GLN C O doub N N 89 GLN C OXT sing N N 90 GLN CB CG sing N N 91 GLN CB HB2 sing N N 92 GLN CB HB3 sing N N 93 GLN CG CD sing N N 94 GLN CG HG2 sing N N 95 GLN CG HG3 sing N N 96 GLN CD OE1 doub N N 97 GLN CD NE2 sing N N 98 GLN NE2 HE21 sing N N 99 GLN NE2 HE22 sing N N 100 GLN OXT HXT sing N N 101 GLU N CA sing N N 102 GLU N H sing N N 103 GLU N H2 sing N N 104 GLU CA C sing N N 105 GLU CA CB sing N N 106 GLU CA HA sing N N 107 GLU C O doub N N 108 GLU C OXT sing N N 109 GLU CB CG sing N N 110 GLU CB HB2 sing N N 111 GLU CB HB3 sing N N 112 GLU CG CD sing N N 113 GLU CG HG2 sing N N 114 GLU CG HG3 sing N N 115 GLU CD OE1 doub N N 116 GLU CD OE2 sing N N 117 GLU OE2 HE2 sing N N 118 GLU OXT HXT sing N N 119 GLY N CA sing N N 120 GLY N H sing N N 121 GLY N H2 sing N N 122 GLY CA C sing N N 123 GLY CA HA2 sing N N 124 GLY CA HA3 sing N N 125 GLY C O doub N N 126 GLY C OXT sing N N 127 GLY OXT HXT sing N N 128 HOH O H1 sing N N 129 HOH O H2 sing N N 130 ILE N CA sing N N 131 ILE N H sing N N 132 ILE N H2 sing N N 133 ILE CA C sing N N 134 ILE CA CB sing N N 135 ILE CA HA sing N N 136 ILE C O doub N N 137 ILE C OXT sing N N 138 ILE CB CG1 sing N N 139 ILE CB CG2 sing N N 140 ILE CB HB sing N N 141 ILE CG1 CD1 sing N N 142 ILE CG1 HG12 sing N N 143 ILE CG1 HG13 sing N N 144 ILE CG2 HG21 sing N N 145 ILE CG2 HG22 sing N N 146 ILE CG2 HG23 sing N N 147 ILE CD1 HD11 sing N N 148 ILE CD1 HD12 sing N N 149 ILE CD1 HD13 sing N N 150 ILE OXT HXT sing N N 151 LEU N CA sing N N 152 LEU N H sing N N 153 LEU N H2 sing N N 154 LEU CA C sing N N 155 LEU CA CB sing N N 156 LEU CA HA sing N N 157 LEU C O doub N N 158 LEU C OXT sing N N 159 LEU CB CG sing N N 160 LEU CB HB2 sing N N 161 LEU CB HB3 sing N N 162 LEU CG CD1 sing N N 163 LEU CG CD2 sing N N 164 LEU CG HG sing N N 165 LEU CD1 HD11 sing N N 166 LEU CD1 HD12 sing N N 167 LEU CD1 HD13 sing N N 168 LEU CD2 HD21 sing N N 169 LEU CD2 HD22 sing N N 170 LEU CD2 HD23 sing N N 171 LEU OXT HXT sing N N 172 LYS N CA sing N N 173 LYS N H sing N N 174 LYS N H2 sing N N 175 LYS CA C sing N N 176 LYS CA CB sing N N 177 LYS CA HA sing N N 178 LYS C O doub N N 179 LYS C OXT sing N N 180 LYS CB CG sing N N 181 LYS CB HB2 sing N N 182 LYS CB HB3 sing N N 183 LYS CG CD sing N N 184 LYS CG HG2 sing N N 185 LYS CG HG3 sing N N 186 LYS CD CE sing N N 187 LYS CD HD2 sing N N 188 LYS CD HD3 sing N N 189 LYS CE NZ sing N N 190 LYS CE HE2 sing N N 191 LYS CE HE3 sing N N 192 LYS NZ HZ1 sing N N 193 LYS NZ HZ2 sing N N 194 LYS NZ HZ3 sing N N 195 LYS OXT HXT sing N N 196 PHE N CA sing N N 197 PHE N H sing N N 198 PHE N H2 sing N N 199 PHE CA C sing N N 200 PHE CA CB sing N N 201 PHE CA HA sing N N 202 PHE C O doub N N 203 PHE C OXT sing N N 204 PHE CB CG sing N N 205 PHE CB HB2 sing N N 206 PHE CB HB3 sing N N 207 PHE CG CD1 doub Y N 208 PHE CG CD2 sing Y N 209 PHE CD1 CE1 sing Y N 210 PHE CD1 HD1 sing N N 211 PHE CD2 CE2 doub Y N 212 PHE CD2 HD2 sing N N 213 PHE CE1 CZ doub Y N 214 PHE CE1 HE1 sing N N 215 PHE CE2 CZ sing Y N 216 PHE CE2 HE2 sing N N 217 PHE CZ HZ sing N N 218 PHE OXT HXT sing N N 219 PRO N CA sing N N 220 PRO N CD sing N N 221 PRO N H sing N N 222 PRO CA C sing N N 223 PRO CA CB sing N N 224 PRO CA HA sing N N 225 PRO C O doub N N 226 PRO C OXT sing N N 227 PRO CB CG sing N N 228 PRO CB HB2 sing N N 229 PRO CB HB3 sing N N 230 PRO CG CD sing N N 231 PRO CG HG2 sing N N 232 PRO CG HG3 sing N N 233 PRO CD HD2 sing N N 234 PRO CD HD3 sing N N 235 PRO OXT HXT sing N N 236 SER N CA sing N N 237 SER N H sing N N 238 SER N H2 sing N N 239 SER CA C sing N N 240 SER CA CB sing N N 241 SER CA HA sing N N 242 SER C O doub N N 243 SER C OXT sing N N 244 SER CB OG sing N N 245 SER CB HB2 sing N N 246 SER CB HB3 sing N N 247 SER OG HG sing N N 248 SER OXT HXT sing N N 249 THR N CA sing N N 250 THR N H sing N N 251 THR N H2 sing N N 252 THR CA C sing N N 253 THR CA CB sing N N 254 THR CA HA sing N N 255 THR C O doub N N 256 THR C OXT sing N N 257 THR CB OG1 sing N N 258 THR CB CG2 sing N N 259 THR CB HB sing N N 260 THR OG1 HG1 sing N N 261 THR CG2 HG21 sing N N 262 THR CG2 HG22 sing N N 263 THR CG2 HG23 sing N N 264 THR OXT HXT sing N N 265 TRP N CA sing N N 266 TRP N H sing N N 267 TRP N H2 sing N N 268 TRP CA C sing N N 269 TRP CA CB sing N N 270 TRP CA HA sing N N 271 TRP C O doub N N 272 TRP C OXT sing N N 273 TRP CB CG sing N N 274 TRP CB HB2 sing N N 275 TRP CB HB3 sing N N 276 TRP CG CD1 doub Y N 277 TRP CG CD2 sing Y N 278 TRP CD1 NE1 sing Y N 279 TRP CD1 HD1 sing N N 280 TRP CD2 CE2 doub Y N 281 TRP CD2 CE3 sing Y N 282 TRP NE1 CE2 sing Y N 283 TRP NE1 HE1 sing N N 284 TRP CE2 CZ2 sing Y N 285 TRP CE3 CZ3 doub Y N 286 TRP CE3 HE3 sing N N 287 TRP CZ2 CH2 doub Y N 288 TRP CZ2 HZ2 sing N N 289 TRP CZ3 CH2 sing Y N 290 TRP CZ3 HZ3 sing N N 291 TRP CH2 HH2 sing N N 292 TRP OXT HXT sing N N 293 TYR N CA sing N N 294 TYR N H sing N N 295 TYR N H2 sing N N 296 TYR CA C sing N N 297 TYR CA CB sing N N 298 TYR CA HA sing N N 299 TYR C O doub N N 300 TYR C OXT sing N N 301 TYR CB CG sing N N 302 TYR CB HB2 sing N N 303 TYR CB HB3 sing N N 304 TYR CG CD1 doub Y N 305 TYR CG CD2 sing Y N 306 TYR CD1 CE1 sing Y N 307 TYR CD1 HD1 sing N N 308 TYR CD2 CE2 doub Y N 309 TYR CD2 HD2 sing N N 310 TYR CE1 CZ doub Y N 311 TYR CE1 HE1 sing N N 312 TYR CE2 CZ sing Y N 313 TYR CE2 HE2 sing N N 314 TYR CZ OH sing N N 315 TYR OH HH sing N N 316 TYR OXT HXT sing N N 317 VAL N CA sing N N 318 VAL N H sing N N 319 VAL N H2 sing N N 320 VAL CA C sing N N 321 VAL CA CB sing N N 322 VAL CA HA sing N N 323 VAL C O doub N N 324 VAL C OXT sing N N 325 VAL CB CG1 sing N N 326 VAL CB CG2 sing N N 327 VAL CB HB sing N N 328 VAL CG1 HG11 sing N N 329 VAL CG1 HG12 sing N N 330 VAL CG1 HG13 sing N N 331 VAL CG2 HG21 sing N N 332 VAL CG2 HG22 sing N N 333 VAL CG2 HG23 sing N N 334 VAL OXT HXT sing N N 335 # _pdbx_initial_refinement_model.accession_code ? _pdbx_initial_refinement_model.id 1 _pdbx_initial_refinement_model.entity_id_list ? _pdbx_initial_refinement_model.type 'experimental model' _pdbx_initial_refinement_model.source_name Other _pdbx_initial_refinement_model.details 'Fontecilla-Camps et al (1988) Proc. Natl Sci. Acad. USA, 85, 7443-7447.' # _atom_sites.entry_id 1SNB _atom_sites.fract_transf_matrix[1][1] 0.042882 _atom_sites.fract_transf_matrix[1][2] 0.000000 _atom_sites.fract_transf_matrix[1][3] 0.013504 _atom_sites.fract_transf_matrix[2][1] 0.000000 _atom_sites.fract_transf_matrix[2][2] 0.025934 _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] 0.035966 _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_